Simba/Units/PascalScript/uPSRuntime.pas

unit uPSRuntime;
{$I PascalScript.inc}
{

RemObjects Pascal Script III
Copyright (C) 2000-2009 by Carlo Kok (ck@carlo-kok.com)

}
interface
uses
  SysUtils, uPSUtils{$IFDEF DELPHI6UP}, variants{$ENDIF}{$IFNDEF PS_NOIDISPATCH}{$IFDEF DELPHI3UP}, ActiveX, Windows{$ELSE}, Ole2{$ENDIF}{$ENDIF};


type
  TPSExec = class;
  TPSStack = class;
  TPSRuntimeAttributes = class;
  TPSRuntimeAttribute = class;

  TPSError = (ErNoError, erCannotImport, erInvalidType, ErInternalError,
    erInvalidHeader, erInvalidOpcode, erInvalidOpcodeParameter, erNoMainProc,
    erOutOfGlobalVarsRange, erOutOfProcRange, ErOutOfRange, erOutOfStackRange,
    ErTypeMismatch, erUnexpectedEof, erVersionError, ErDivideByZero, ErMathError,
    erCouldNotCallProc, erOutofRecordRange, erOutOfMemory, erException,
    erNullPointerException, erNullVariantError, erInterfaceNotSupported, erCustomError);

  TPSStatus = (isNotLoaded, isLoaded, isRunning, isPaused);

  PByteArray = ^TByteArray;

  TByteArray = array[0..1023] of Byte;

  PDWordArray = ^TDWordArray;

  TDWordArray = array[0..1023] of Cardinal;
{@link(TPSProcRec)
  PIFProcRec is a pointer to a TIProcRec record}
  TPSProcRec = class;
  TIFProcRec = TPSProcRec;
  TPSExternalProcRec = class;
  TIFPSExternalProcRec = TPSExternalProcRec;
  TIFExternalProcRec = TPSExternalProcRec;
  PIFProcRec = TPSProcRec;
  PProcRec = ^TProcRec;

  TPSProcPtr = function(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;

  TPSFreeProc = procedure (Caller: TPSExec; p: PProcRec);

  TPSProcRec = class
  private
    FAttributes: TPSRuntimeAttributes;
  public

    constructor Create(Owner: TPSExec);

    destructor Destroy; override;


    property Attributes: TPSRuntimeAttributes read FAttributes;
  end;

  TPSExternalProcRec = class(TPSProcRec)
  private
    FExt1: Pointer;
    FExt2: Pointer;
    FName: tbtstring;
    FProcPtr: TPSProcPtr;
    FDecl: tbtstring;
  public

    property Name: tbtstring read FName write FName;

    property Decl: tbtstring read FDecl write FDecl;

    property Ext1: Pointer read FExt1 write FExt1;

    property Ext2: Pointer read FExt2 write FExt2;

    property ProcPtr: TPSProcPtr read FProcPtr write FProcPtr;
  end;

  TPSInternalProcRec = class(TPSProcRec)
  private
    FData: PByteArray;
    FLength: Cardinal;
    FExportNameHash: Longint;
    FExportDecl: tbtstring;
    FExportName: tbtstring;
  public

    property Data: PByteArray read FData;

    property Length: Cardinal read FLength;

    property ExportNameHash: Longint read FExportNameHash;

    property ExportName: tbtstring read FExportName write FExportName;

    property ExportDecl: tbtstring read FExportDecl write FExportDecl;


    destructor Destroy; override;
  end;

  TProcRec = record

    Name: ShortString;

    Hash: Longint;

    ProcPtr: TPSProcPtr;

    FreeProc: TPSFreeProc;

    Ext1, Ext2: Pointer;
  end;

  PBTReturnAddress = ^TBTReturnAddress;

  TBTReturnAddress = packed record

    ProcNo: TPSInternalProcRec;

    Position, StackBase: Cardinal;
  end;

  TPSTypeRec = class
  private
    FExportNameHash: Longint;
    FExportName: tbtstring;
    FBaseType: TPSBaseType;
    FAttributes: TPSRuntimeAttributes;
  protected
    FRealSize: Cardinal;
  public

    property RealSize: Cardinal read FRealSize;

    property BaseType: TPSBaseType read FBaseType write FBaseType;

    property ExportName: tbtstring read FExportName write FExportName;

    property ExportNameHash: Longint read FExportNameHash write FExportNameHash;

    property Attributes: TPSRuntimeAttributes read FAttributes write FAttributes;

    procedure CalcSize; virtual;

    constructor Create(Owner: TPSExec);
    destructor Destroy; override;
  end;

  TPSTypeRec_ProcPtr = class(TPSTypeRec)
  private
    FParamInfo: tbtstring;
  public

    property ParamInfo: tbtstring read FParamInfo write FParamInfo;
    procedure CalcSize; override;
  end;
  PIFTypeRec = TPSTypeRec;

  TPSTypeRec_Class = class(TPSTypeRec)
  private
    FCN: tbtstring;
  public

    property CN: tbtstring read FCN write FCN;
  end;
{$IFNDEF PS_NOINTERFACES}

  TPSTypeRec_Interface = class(TPSTypeRec)
  private
    FGuid: TGUID;
  public

    property Guid: TGUID read FGuid write FGuid;
  end;
{$ENDIF}

  TPSTypeRec_Array = class(TPSTypeRec)
  private
    FArrayType: TPSTypeRec;
  public

    property ArrayType: TPSTypeRec read FArrayType write FArrayType;
    procedure CalcSize; override;
  end;

  TPSTypeRec_StaticArray = class(TPSTypeRec_Array)
  private
    FSize: Longint;
    FStartOffset: LongInt;
  public

    property Size: Longint read FSize write FSize;
    property StartOffset: LongInt read FStartOffset write FStartOffset;

    procedure CalcSize; override;
  end;

  TPSTypeRec_Set = class(TPSTypeRec)
  private
    FBitSize: Longint;
    FByteSize: Longint;
  public
    {The number of bytes this would require (same as realsize)}
    property aByteSize: Longint read FByteSize write FByteSize;
    property aBitSize: Longint read FBitSize write FBitSize;
    procedure CalcSize; override;
  end;

  TPSTypeRec_Record = class(TPSTypeRec)
  private
    FFieldTypes: TPSList;
    FRealFieldOffsets: TPSList;
  public

    property FieldTypes: TPSList read FFieldTypes;

    property RealFieldOffsets: TPSList read FRealFieldOffsets;

    procedure CalcSize; override;

    constructor Create(Owner: TPSExec);
    destructor Destroy; override;
  end;

  PPSVariant = ^TPSVariant;

  PIFVariant = PPSVariant;

  TPSVariant = packed record
    FType: TPSTypeRec;
  end;

  PPSVariantData = ^TPSVariantData;

  TPSVariantData = packed record
    VI: TPSVariant;
    Data: array[0..0] of Byte;
  end;

  PPSVariantU8 = ^TPSVariantU8;

  TPSVariantU8 = packed record
    VI: TPSVariant;
    Data: tbtU8;
  end;


  PPSVariantS8 = ^TPSVariantS8;

  TPSVariantS8 = packed record
    VI: TPSVariant;
    Data: tbts8;
  end;


  PPSVariantU16 = ^TPSVariantU16;

  TPSVariantU16 = packed record
    VI: TPSVariant;
    Data: tbtU16;
  end;


  PPSVariantS16 = ^TPSVariantS16;

  TPSVariantS16 = packed record
    VI: TPSVariant;
    Data: tbts16;
  end;


  PPSVariantU32 = ^TPSVariantU32;

  TPSVariantU32 = packed record
    VI: TPSVariant;
    Data: tbtU32;
  end;


  PPSVariantS32 = ^TPSVariantS32;

  TPSVariantS32 = packed record
    VI: TPSVariant;
    Data: tbts32;
  end;
{$IFNDEF PS_NOINT64}

  PPSVariantS64 = ^TPSVariantS64;

  TPSVariantS64 = packed record
    VI: TPSVariant;
    Data: tbts64;
  end;
{$ENDIF}

  PPSVariantAChar = ^TPSVariantAChar;

  TPSVariantAChar = packed record
    VI: TPSVariant;
    Data: tbtChar;
  end;

{$IFNDEF PS_NOWIDESTRING}

  PPSVariantWChar = ^TPSVariantWChar;

  TPSVariantWChar = packed record
    VI: TPSVariant;
    Data: tbtWideChar;
  end;
{$ENDIF}

  PPSVariantAString = ^TPSVariantAString;

  TPSVariantAString = packed record
    VI: TPSVariant;
    Data: tbtString;
  end;

{$IFNDEF PS_NOWIDESTRING}

  PPSVariantWString = ^TPSVariantWString;

  TPSVariantWString = {$IFNDEF DELPHI2009UP}packed {$ENDIF}record
    VI: TPSVariant;
    Data: tbtWideString;
  end;

  PPSVariantUString = ^TPSVariantUString;

  TPSVariantUString = {$IFNDEF DELPHI2009UP}packed {$ENDIF}record
    VI: TPSVariant;
    Data: tbtunicodestring;
  end;

{$ENDIF}


  PPSVariantSingle = ^TPSVariantSingle;

  TPSVariantSingle = packed record
    VI: TPSVariant;
    Data: tbtsingle;
  end;


  PPSVariantDouble = ^TPSVariantDouble;

  TPSVariantDouble = packed record
    VI: TPSVariant;
    Data: tbtDouble;
  end;


  PPSVariantExtended = ^TPSVariantExtended;

  TPSVariantExtended = packed record
    VI: TPSVariant;
    Data: tbtExtended;
  end;


  PPSVariantCurrency = ^TPSVariantCurrency;

  TPSVariantCurrency = packed record
    VI: TPSVariant;
    Data: tbtCurrency;
  end;

  PPSVariantSet = ^TPSVariantSet;

  TPSVariantSet = packed record
    VI: TPSVariant;
    Data: array[0..0] of Byte;
  end;

{$IFNDEF PS_NOINTERFACES}

  PPSVariantInterface = ^TPSVariantInterface;

  TPSVariantInterface = packed record
    VI: TPSVariant;
    Data: IUnknown;
  end;
{$ENDIF}

  PPSVariantClass = ^TPSVariantClass;

  TPSVariantClass = packed record
    VI: TPSVariant;
    Data: TObject;
  end;


  PPSVariantRecord = ^TPSVariantRecord;

  TPSVariantRecord = packed record
    VI: TPSVariant;
    data: array[0..0] of byte;
  end;


  PPSVariantDynamicArray = ^TPSVariantDynamicArray;

  TPSVariantDynamicArray = packed record
    VI: TPSVariant;
    Data: Pointer;
  end;


  PPSVariantStaticArray = ^TPSVariantStaticArray;

  TPSVariantStaticArray = packed record
    VI: TPSVariant;
    data: array[0..0] of byte;
  end;


  PPSVariantPointer = ^TPSVariantPointer;

  TPSVariantPointer = packed record
    VI: TPSVariant;
    DataDest: Pointer;
    DestType: TPSTypeRec;
    FreeIt: LongBool;
  end;


  PPSVariantReturnAddress = ^TPSVariantReturnAddress;

  TPSVariantReturnAddress = packed record
    VI: TPSVariant;
    Addr: TBTReturnAddress;
  end;


  PPSVariantVariant = ^TPSVariantVariant;

  TPSVariantVariant = packed record
    VI: TPSVariant;
    Data: Variant;
  end;

  PPSVariantProcPtr = ^TPSVariantProcPtr;
  TPSVariantProcPtr = packed record
    VI: TPSVariant;
    ProcNo: Cardinal;
    Self: Pointer;
    Ptr: Pointer;
    {
      ProcNo = 0  means Self/Ptr become active (Ptr = nil means it's nil)
    }
  end;


  TPSVarFreeType = (
    vtNone,
    vtTempVar
    );

  TPSResultData = packed record
    P: Pointer;
    aType: TPSTypeRec;
    FreeType: TPSVarFreeType;
  end;


  PPSResource = ^TPSResource;

  TPSResource = record
    Proc: Pointer;
    P: Pointer;
  end;

  TPSAttributeUseProc = function (Sender: TPSExec; const AttribType: tbtstring; Attr: TPSRuntimeAttribute): Boolean;

  TPSAttributeType = class
  private
    FTypeName: tbtstring;
    FUseProc: TPSAttributeUseProc;
    FTypeNameHash: Longint;
  public

    property UseProc: TPSAttributeUseProc read FUseProc write FUseProc;

    property TypeName: tbtstring read FTypeName write FTypeName;

    property TypeNameHash: Longint read FTypeNameHash write FTypeNameHash;
  end;

  PClassItem = ^TClassItem;

  TClassItem = record

    FName: tbtstring;

    FNameHash: Longint;

    b: byte;
    case byte of
    0: (Ptr: Pointer);
    1: (PointerInList: Pointer);
    3: (FReadFunc, FWriteFunc: Pointer); {Property Helper}
    4: (Ptr2: Pointer);
    5: (PointerInList2: Pointer);
    6: (); {Property helper, like 3}
    7: (); {Property helper that will pass it's name}
  end;


  PPSVariantIFC = ^TPSVariantIFC;
  {Temporary variant into record}
  TPSVariantIFC = packed record
    Dta: Pointer;
    aType: TPSTypeRec;
    VarParam: Boolean;
  end;
  PIFPSVariantIFC = PPSVariantIFC;
  TIFPSVariantIFC = TPSVariantIFC;

  TPSRuntimeAttribute = class(TObject)
  private
    FValues: TPSStack;
    FAttribType: tbtstring;
    FOwner: TPSRuntimeAttributes;
    FAttribTypeHash: Longint;
    function GetValue(I: Longint): PIFVariant;
    function GetValueCount: Longint;
  public

    property Owner: TPSRuntimeAttributes read FOwner;

    property AttribType: tbtstring read FAttribType write FAttribType;

    property AttribTypeHash: Longint read FAttribTypeHash write FAttribTypeHash;

    property ValueCount: Longint read GetValueCount;

    property Value[I: Longint]: PIFVariant read GetValue;

    function AddValue(aType: TPSTypeRec): PPSVariant;

    procedure DeleteValue(i: Longint);

    procedure AdjustSize;


    constructor Create(Owner: TPSRuntimeAttributes);

    destructor Destroy; override;
  end;

  TPSRuntimeAttributes = class(TObject)
  private
    FAttributes: TPSList;
    FOwner: TPSExec;
    function GetCount: Longint;
    function GetItem(I: Longint): TPSRuntimeAttribute;
  public

    property Owner: TPSExec read FOwner;

    property Count: Longint read GetCount;

    property Items[I: Longint]: TPSRuntimeAttribute read GetItem; default;

    procedure Delete(I: Longint);

    function Add: TPSRuntimeAttribute;

    function FindAttribute(const Name: tbtstring): TPSRuntimeAttribute;


    constructor Create(AOwner: TPSExec);

    destructor Destroy; override;
  end;
  TPSOnGetNVariant = function (Sender: TPSExec; const Name: tbtstring): Variant;
  TPSOnSetNVariant = procedure (Sender: TPSExec; const Name: tbtstring; V: Variant);

  TPSOnLineEvent = procedure(Sender: TPSExec);

  TPSOnSpecialProcImport = function (Sender: TPSExec; p: TPSExternalProcRec; Tag: Pointer): Boolean;

  TPSOnException = procedure (Sender: TPSExec; ExError: TPSError; const ExParam: tbtstring; ExObject: TObject; ProcNo, Position: Cardinal);

  TPSExec = class(TObject)
  Private
    FOnGetNVariant: TPSOnGetNVariant;
    FOnSetNVariant: TPSOnSetNVariant;
    FId: Pointer;
    FJumpFlag: Boolean;
    FCallCleanup: Boolean;
    FOnException: TPSOnException;
    function ReadData(var Data; Len: Cardinal): Boolean;
    function ReadLong(var b: Cardinal): Boolean;
    function DoCalc(var1, Var2: Pointer; var1Type, var2type: TPSTypeRec; CalcType: Cardinal): Boolean;
    function DoBooleanCalc(var1, Var2, into: Pointer; var1Type, var2type, intotype: TPSTypeRec; Cmd: Cardinal): Boolean;
    function SetVariantValue(dest, Src: Pointer; desttype, srctype: TPSTypeRec): Boolean;
    function ReadVariable(var Dest: TPSResultData; UsePointer: Boolean): Boolean;
    function DoBooleanNot(Dta: Pointer; aType: TPSTypeRec): Boolean;
    function DoMinus(Dta: Pointer; aType: TPSTypeRec): Boolean;
    function DoIntegerNot(Dta: Pointer; aType: TPSTypeRec): Boolean;
    procedure RegisterStandardProcs;
  Protected

    FReturnAddressType: TPSTypeRec;

    FVariantType: TPSTypeRec;

    FVariantArrayType: TPSTypeRec;

    FAttributeTypes: TPSList;

    FExceptionStack: TPSList;

    FResources: TPSList;

    FExportedVars: TPSList;

    FTypes: TPSList;

    FProcs: TPSList;

    FGlobalVars: TPSStack;

    FTempVars: TPSStack;

    FStack: TPSStack;

    FMainProc: Cardinal;

    FStatus: TPSStatus;

    FCurrProc: TPSInternalProcRec;

    FData: PByteArray;

    FDataLength: Cardinal;

    FCurrentPosition: Cardinal;

    FCurrStackBase: Cardinal;

    FOnRunLine: TPSOnLineEvent;

    FSpecialProcList: TPSList;

    FRegProcs: TPSList;

    ExObject: TObject;

    ExProc: Cardinal;

    ExPos: Cardinal;

    ExEx: TPSError;

    ExParam: tbtstring;

    function InvokeExternalMethod(At: TPSTypeRec_ProcPtr; Slf, Ptr: Pointer): Boolean;

    function InnerfuseCall(_Self, Address: Pointer; CallingConv: TPSCallingConvention; Params: TPSList; res: PPSVariantIFC): Boolean;

    procedure RunLine; virtual;

    function ImportProc(const Name: ShortString; proc: TPSExternalProcRec): Boolean; Virtual;

    procedure ExceptionProc(proc, Position: Cardinal; Ex: TPSError; const s: tbtstring; NewObject: TObject); Virtual;

    function FindSpecialProcImport(P: TPSOnSpecialProcImport): pointer;
  Public
    function LastEx: TPSError;
    function LastExParam: tbtstring;
    function LastExProc: Integer;
    function LastExPos: Integer;
    procedure CMD_Err(EC: TPSError);

    procedure CMD_Err2(EC: TPSError; const Param: tbtstring);

    procedure CMD_Err3(EC: TPSError; const Param: tbtstring; ExObject: TObject);

    property Id: Pointer read FID write FID;

    class function About: tbtstring;

    function RunProc(Params: TPSList; ProcNo: Cardinal): Boolean;

    function RunProcP(const Params: array of Variant; const Procno: Cardinal): Variant;
    function RunProcPVar(var Params: array of Variant; const Procno: Cardinal): Variant;

    function RunProcPN(const Params: array of Variant; const ProcName: tbtstring): Variant;

    function FindType(StartAt: Cardinal; BaseType: TPSBaseType; var l: Cardinal): PIFTypeRec;

    function FindType2(BaseType: TPSBaseType): PIFTypeRec;

    function GetTypeNo(l: Cardinal): PIFTypeRec;

    function GetType(const Name: tbtstring): Cardinal;

    function GetProc(const Name: tbtstring): Cardinal;

    function GetVar(const Name: tbtstring): Cardinal;

    function GetVar2(const Name: tbtstring): PIFVariant;

    function GetVarNo(C: Cardinal): PIFVariant;

    function GetProcNo(C: Cardinal): PIFProcRec;

    function GetProcCount: Cardinal;

    function GetVarCount: Longint;

    function GetTypeCount: Longint;


    constructor Create;

    destructor Destroy; Override;


    function RunScript: Boolean;


    function LoadData(const s: tbtstring): Boolean; virtual;

    procedure Clear; Virtual;

    procedure Cleanup; Virtual;

    procedure Stop; Virtual;

    procedure Pause; Virtual;

    property CallCleanup: Boolean read FCallCleanup write FCallCleanup;

    property Status: TPSStatus Read FStatus;

    property OnRunLine: TPSOnLineEvent Read FOnRunLine Write FOnRunLine;

    procedure ClearspecialProcImports;

    procedure AddSpecialProcImport(const FName: tbtstring; P: TPSOnSpecialProcImport; Tag: Pointer);

    function RegisterFunctionName(const Name: tbtstring; ProcPtr: TPSProcPtr;
      Ext1, Ext2: Pointer): PProcRec;

    procedure RegisterDelphiFunction(ProcPtr: Pointer; const Name: tbtstring; CC: TPSCallingConvention);

    procedure RegisterDelphiMethod(Slf, ProcPtr: Pointer; const Name: tbtstring; CC: TPSCallingConvention);

    function GetProcAsMethod(const ProcNo: Cardinal): TMethod;

    function GetProcAsMethodN(const ProcName: tbtstring): TMethod;

    procedure RegisterAttributeType(useproc: TPSAttributeUseProc; const TypeName: tbtstring);

    procedure ClearFunctionList;

    property ExceptionProcNo: Cardinal Read ExProc;

    property ExceptionPos: Cardinal Read ExPos;

    property ExceptionCode: TPSError Read ExEx;

    property ExceptionString: tbtstring read ExParam;

    property ExceptionObject: TObject read ExObject write ExObject;

    procedure AddResource(Proc, P: Pointer);

    function IsValidResource(Proc, P: Pointer): Boolean;

    procedure DeleteResource(P: Pointer);

    function FindProcResource(Proc: Pointer): Pointer;

    function FindProcResource2(Proc: Pointer; var StartAt: Longint): Pointer;

    procedure RaiseCurrentException;

    property OnException: TPSOnException read FOnException write FOnException;
    property OnGetNVariant: TPSOnGetNVariant read FOnGetNVariant write FOnGetNVariant;
    property OnSetNVariant: TPSOnSetNVariant read FOnSetNVariant write FOnSetNVariant;
  end;

  TPSStack = class(TPSList)
  private
    FDataPtr: Pointer;
    FCapacity,
    FLength: Longint;
    function GetItem(I: Longint): PPSVariant;
    procedure SetCapacity(const Value: Longint);
    procedure AdjustLength;
  public

    property DataPtr: Pointer read FDataPtr;

    property Capacity: Longint read FCapacity write SetCapacity;

    property Length: Longint read FLength;


    constructor Create;

    destructor Destroy; override;

    procedure Clear; {$IFDEF DELPHI5UP} reintroduce;{$ELSE} override; {$ENDIF}

    function Push(TotalSize: Longint): PPSVariant;

    function PushType(aType: TPSTypeRec): PPSVariant;

    procedure Pop;
    function GetInt(ItemNo: Longint): Longint;
    function GetUInt(ItemNo: Longint): Cardinal;
{$IFNDEF PS_NOINT64}
    function GetInt64(ItemNo: Longint): Int64;
{$ENDIF}
    function GetString(ItemNo: Longint): string; // calls the native method
    function GetAnsiString(ItemNo: Longint): tbtstring;
{$IFNDEF PS_NOWIDESTRING}
    function GetWideString(ItemNo: Longint): tbtWideString;
    function GetUnicodeString(ItemNo: Longint): tbtunicodestring;
{$ENDIF}
    function GetReal(ItemNo: Longint): Extended;
    function GetCurrency(ItemNo: Longint): Currency;
    function GetBool(ItemNo: Longint): Boolean;
    function GetClass(ItemNo: Longint): TObject;

    procedure SetInt(ItemNo: Longint; const Data: Longint);
    procedure SetUInt(ItemNo: Longint; const Data: Cardinal);
{$IFNDEF PS_NOINT64}
    procedure SetInt64(ItemNo: Longint; const Data: Int64);
{$ENDIF}
    procedure SetString(ItemNo: Longint; const Data: string);
    procedure SetAnsiString(ItemNo: Longint; const Data: tbtstring);
{$IFNDEF PS_NOWIDESTRING}
    procedure SetWideString(ItemNo: Longint; const Data: tbtWideString);
    procedure SetUnicodeString(ItemNo: Longint; const Data: tbtunicodestring);
{$ENDIF}
    procedure SetReal(ItemNo: Longint; const Data: Extended);
    procedure SetCurrency(ItemNo: Longint; const Data: Currency);
    procedure SetBool(ItemNo: Longint; const Data: Boolean);
    procedure SetClass(ItemNo: Longint; const Data: TObject);

    property Items[I: Longint]: PPSVariant read GetItem; default;
  end;


function PSErrorToString(x: TPSError; const Param: tbtstring): tbtstring;
function TIFErrorToString(x: TPSError; const Param: tbtstring): tbtstring;
function CreateHeapVariant(aType: TPSTypeRec): PPSVariant;
procedure DestroyHeapVariant(v: PPSVariant);

procedure FreePIFVariantList(l: TPSList);
procedure FreePSVariantList(l: TPSList);

const
  ENoError = ERNoError;


function PIFVariantToVariant(Src: PIFVariant; var Dest: Variant): Boolean;
function VariantToPIFVariant(Exec: TPSExec; const Src: Variant; Dest: PIFVariant): Boolean;

function PSGetRecField(const avar: TPSVariantIFC; Fieldno: Longint): TPSVariantIFC;
function PSGetArrayField(const avar: TPSVariantIFC; Fieldno: Longint): TPSVariantIFC;
function NewTPSVariantRecordIFC(avar: PPSVariant; Fieldno: Longint): TPSVariantIFC;

function NewTPSVariantIFC(avar: PPSVariant; varparam: boolean): TPSVariantIFC;

function NewPPSVariantIFC(avar: PPSVariant; varparam: boolean): PPSVariantIFC;

procedure DisposePPSVariantIFC(aVar: PPSVariantIFC);

procedure DisposePPSVariantIFCList(list: TPSList);


function PSGetObject(Src: Pointer; aType: TPSTypeRec): TObject;
function PSGetUInt(Src: Pointer; aType: TPSTypeRec): Cardinal;
{$IFNDEF PS_NOINT64}
function PSGetInt64(Src: Pointer; aType: TPSTypeRec): Int64;
{$ENDIF}
function PSGetReal(Src: Pointer; aType: TPSTypeRec): Extended;
function PSGetCurrency(Src: Pointer; aType: TPSTypeRec): Currency;
function PSGetInt(Src: Pointer; aType: TPSTypeRec): Longint;
function PSGetString(Src: Pointer; aType: TPSTypeRec): string;
function PSGetAnsiString(Src: Pointer; aType: TPSTypeRec): tbtString;
{$IFNDEF PS_NOWIDESTRING}
function PSGetWideString(Src: Pointer; aType: TPSTypeRec): tbtWideString;
function PSGetUnicodeString(Src: Pointer; aType: TPSTypeRec): tbtunicodestring;
{$ENDIF}

procedure PSSetObject(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; Const val: TObject);
procedure PSSetUInt(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Cardinal);
{$IFNDEF PS_NOINT64}
procedure PSSetInt64(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Int64);
{$ENDIF}
procedure PSSetReal(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Extended);
procedure PSSetCurrency(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Currency);
procedure PSSetInt(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Longint);
procedure PSSetString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: String);
procedure PSSetAnsiString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtString);
{$IFNDEF PS_NOWIDESTRING}
procedure PSSetWideString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtWideString);
procedure PSSetUnicodeString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtunicodestring);
{$ENDIF}

procedure VNSetPointerTo(const Src: TPSVariantIFC; Data: Pointer; aType: TPSTypeRec);

function VNGetUInt(const Src: TPSVariantIFC): Cardinal;
{$IFNDEF PS_NOINT64}
function VNGetInt64(const Src: TPSVariantIFC): Int64;
{$ENDIF}
function VNGetReal(const Src: TPSVariantIFC): Extended;
function VNGetCurrency(const Src: TPSVariantIFC): Currency;
function VNGetInt(const Src: TPSVariantIFC): Longint;
function VNGetString(const Src: TPSVariantIFC): String;
function VNGetAnsiString(const Src: TPSVariantIFC): tbtString;
{$IFNDEF PS_NOWIDESTRING}
function VNGetWideString(const Src: TPSVariantIFC): tbtWideString;
function VNGetUnicodeString(const Src: TPSVariantIFC): tbtunicodestring;
{$ENDIF}

procedure VNSetUInt(const Src: TPSVariantIFC; const Val: Cardinal);
{$IFNDEF PS_NOINT64}
procedure VNSetInt64(const Src: TPSVariantIFC; const Val: Int64);
{$ENDIF}
procedure VNSetReal(const Src: TPSVariantIFC; const Val: Extended);
procedure VNSetCurrency(const Src: TPSVariantIFC; const Val: Currency);
procedure VNSetInt(const Src: TPSVariantIFC; const Val: Longint);
procedure VNSetString(const Src: TPSVariantIFC; const Val: String);
procedure VNSetAnsiString(const Src: TPSVariantIFC; const Val: tbtString);
{$IFNDEF PS_NOWIDESTRING}
procedure VNSetWideString(const Src: TPSVariantIFC; const Val: tbtWideString);
procedure VNSetUnicodeString(const Src: TPSVariantIFC; const Val: tbtunicodestring);
{$ENDIF}

function VGetUInt(const Src: PIFVariant): Cardinal;
{$IFNDEF PS_NOINT64}
function VGetInt64(const Src: PIFVariant): Int64;
{$ENDIF}
function VGetReal(const Src: PIFVariant): Extended;
function VGetCurrency(const Src: PIFVariant): Currency;
function VGetInt(const Src: PIFVariant): Longint;
function VGetString(const Src: PIFVariant): String;
function VGetAnsiString(const Src: PIFVariant): tbtString;
{$IFNDEF PS_NOWIDESTRING}
function VGetWideString(const Src: PIFVariant): tbtWideString;
function VGetUnicodeString(const Src: PIFVariant): tbtunicodestring;
{$ENDIF}

procedure VSetPointerTo(const Src: PIFVariant; Data: Pointer; aType: TPSTypeRec);
procedure VSetUInt(const Src: PIFVariant; const Val: Cardinal);
{$IFNDEF PS_NOINT64}
procedure VSetInt64(const Src: PIFVariant; const Val: Int64);
{$ENDIF}
procedure VSetReal(const Src: PIFVariant; const Val: Extended);
procedure VSetCurrency(const Src: PIFVariant; const Val: Currency);
procedure VSetInt(const Src: PIFVariant; const Val: Longint);
procedure VSetString(const Src: PIFVariant; const Val: string);
procedure VSetAnsiString(const Src: PIFVariant; const Val: tbtString);
{$IFNDEF PS_NOWIDESTRING}
procedure VSetWideString(const Src: PIFVariant; const Val: tbtWideString);
procedure VSetUnicodeString(const Src: PIFVariant; const Val: tbtunicodestring);
{$ENDIF}

type

  EPSException = class(Exception)
  private
    FProcPos: Cardinal;
    FProcNo: Cardinal;
    FExec: TPSExec;
  public

    constructor Create(const Error: tbtstring; Exec: TPSExec; Procno, ProcPos: Cardinal);

    property ProcNo: Cardinal read FProcNo;

    property ProcPos: Cardinal read FProcPos;

    property Exec: TPSExec read FExec;
  end;

  TPSRuntimeClass = class
  protected
    FClassName: tbtstring;
    FClassNameHash: Longint;

    FClassItems: TPSList;
    FClass: TClass;

    FEndOfVmt: Longint;
  public

    procedure RegisterConstructor(ProcPtr: Pointer; const Name: tbtstring);

    procedure RegisterVirtualConstructor(ProcPtr: Pointer; const Name: tbtstring);

    procedure RegisterMethod(ProcPtr: Pointer; const Name: tbtstring);

    procedure RegisterVirtualMethod(ProcPtr: Pointer; const Name: tbtstring);

    procedure RegisterVirtualAbstractMethod(ClassDef: TClass; ProcPtr: Pointer; const Name: tbtstring);

    procedure RegisterPropertyHelper(ReadFunc, WriteFunc: Pointer; const Name: tbtstring);

    procedure RegisterPropertyHelperName(ReadFunc, WriteFunc: Pointer; const Name: tbtstring);

    procedure RegisterEventPropertyHelper(ReadFunc, WriteFunc: Pointer; const Name: tbtstring);

    constructor Create(aClass: TClass; const AName: tbtstring);

    destructor Destroy; override;
  end;

  TPSRuntimeClassImporter = class
  private
    FClasses: TPSList;
  public

    constructor Create;

    constructor CreateAndRegister(Exec: TPSexec; AutoFree: Boolean);

    destructor Destroy; override;

    function Add(aClass: TClass): TPSRuntimeClass;

    function Add2(aClass: TClass; const Name: tbtstring): TPSRuntimeClass;

    procedure Clear;

    function FindClass(const Name: tbtstring): TPSRuntimeClass;
  end;
  TIFPSRuntimeClassImporter = TPSRuntimeClassImporter;
  TPSResourceFreeProc = procedure (Sender: TPSExec; P: TPSRuntimeClassImporter);


procedure RegisterClassLibraryRuntime(SE: TPSExec; Importer: TPSRuntimeClassImporter);

procedure SetVariantToClass(V: PIFVariant; Cl: TObject);
{$IFNDEF PS_NOINTERFACES}
procedure SetVariantToInterface(V: PIFVariant; Cl: IUnknown);
{$ENDIF}

procedure MyAllMethodsHandler;

function GetMethodInfoRec(SE: TPSExec; ProcNo: Cardinal): Pointer;

function MkMethod(FSE: TPSExec; No: Cardinal): TMethod;

type
  TIFInternalProcRec = TPSInternalProcRec;
  TIFError = TPSError;
  TIFStatus = TPSStatus;
  TIFPSExec = TPSExec;
  TIFPSStack = TPSStack;
  TIFTypeRec = TPSTypeRec;


  TPSCallingConvention = uPSUtils.TPSCallingConvention;
const

  cdRegister = uPSUtils.cdRegister;

  cdPascal = uPSUtils.cdPascal;

  cdCdecl = uPSUtils.cdCdecl;

  cdStdCall = uPSUtils.cdStdCall;

  InvalidVal = Cardinal(-1);

function  PSDynArrayGetLength(arr: Pointer; aType: TPSTypeRec): Longint;
procedure PSDynArraySetLength(var arr: Pointer; aType: TPSTypeRec; NewLength: Longint);

function  GetPSArrayLength(Arr: PIFVariant): Longint;
procedure SetPSArrayLength(Arr: PIFVariant; NewLength: Longint);

function PSVariantToString(const p: TPSVariantIFC; const ClassProperties: tbtstring): tbtstring;
function MakeString(const s: tbtstring): tbtstring;
{$IFNDEF PS_NOWIDESTRING}
function MakeWString(const s: tbtunicodestring): tbtstring;
{$ENDIF}

{$IFNDEF PS_NOIDISPATCH}
function IDispatchInvoke(Self: IDispatch; PropertySet: Boolean; const Name: tbtString; const Par: array of Variant): Variant;
{$ENDIF}


implementation
uses
  TypInfo {$IFDEF DELPHI3UP}{$IFNDEF FPC} , ComObj {$ENDIF}{$ENDIF};

{$IFDEF DELPHI3UP }
resourceString
{$ELSE }
const
{$ENDIF }

  RPS_UnknownIdentifier = 'Unknown Identifier';
  RPS_Exception = 'Exception: %s';
  RPS_Invalid = '[Invalid]';

  //- PSErrorToString
  RPS_NoError = 'No Error';
  RPS_CannotImport = 'Cannot Import %s';
  RPS_InvalidType = 'Invalid Type';
  RPS_InternalError = 'Internal error';
  RPS_InvalidHeader = 'Invalid Header';
  RPS_InvalidOpcode = 'Invalid Opcode';
  RPS_InvalidOpcodeParameter = 'Invalid Opcode Parameter';
  RPS_NoMainProc = 'no Main Proc';
  RPS_OutOfGlobalVarsRange = 'Out of Global Vars range';
  RPS_OutOfProcRange = 'Out of Proc Range';
  RPS_OutOfRange = 'Out Of Range';
  RPS_OutOfStackRange = 'Out Of Stack Range';
  RPS_TypeMismatch = 'Type Mismatch';
  RPS_UnexpectedEof = 'Unexpected End Of File';
  RPS_VersionError = 'Version error';
  RPS_DivideByZero = 'divide by Zero';
  RPS_MathError = 'Math error';
  RPS_CouldNotCallProc = 'Could not call proc';
  RPS_OutofRecordRange = 'Out of Record Fields Range';
  RPS_NullPointerException = 'Null Pointer Exception';
  RPS_NullVariantError = 'Null variant error';
  RPS_OutOfMemory = 'Out Of Memory';
  RPS_InterfaceNotSupported = 'Interface not supported';
  RPS_UnknownError = 'Unknown error';


  RPS_InvalidVariable = 'Invalid variable';
  RPS_InvalidArray = 'Invalid array';
  RPS_OLEError = 'OLE error %.8x';
  RPS_UnknownProcedure = 'Unknown procedure';
  RPS_NotEnoughParameters = 'Not enough parameters';
  RPS_InvalidParameter = 'Invalid parameter';
  RPS_TooManyParameters = 'Too many parameters';
  RPS_OutOfStringRange = 'Out of string range';
  RPS_CannotCastInterface = 'Cannot cast an interface';
  RPS_CannotCastObject = 'Cannot cast an object';
  RPS_CapacityLength = 'Capacity < Length';
  RPS_CanOnlySendLastItem = 'Can only remove last item from stack';
  RPS_NILInterfaceException = 'Nil interface';
  RPS_UnknownMethod = 'Unknown method';



type
  PPSExportedVar = ^TPSExportedVar;
  TPSExportedVar = record
    FName: tbtstring;
    FNameHash: Longint;
    FVarNo: Cardinal;
  end;
  PRaiseFrame = ^TRaiseFrame;
  TRaiseFrame = record
    NextRaise: PRaiseFrame;
    ExceptAddr: Pointer;
    ExceptObject: TObject;
    ExceptionRecord: Pointer;
  end;
  TPSExceptionHandler = class
    CurrProc: TPSInternalProcRec;
    BasePtr, StackSize: Cardinal;
    FinallyOffset, ExceptOffset, Finally2Offset, EndOfBlock: Cardinal;
    ExceptionData: TPSError;
    ExceptionObject: TObject;
    ExceptionParam: tbtString;
    destructor Destroy; override;
  end;
  TPSHeader = packed record
    HDR: Cardinal;
    PSBuildNo: Cardinal;
    TypeCount: Cardinal;
    ProcCount: Cardinal;
    VarCount: Cardinal;
    MainProcNo: Cardinal;
    ImportTableSize: Cardinal;
  end;

  TPSExportItem = packed record
    ProcNo: Cardinal;
    NameLength: Cardinal;
    DeclLength: Cardinal;
  end;

  TPSType = packed record
    BaseType: TPSBaseType;
  end;
  TPSProc = packed record
    Flags: Byte;
  end;

  TPSVar = packed record
    TypeNo: Cardinal;
    Flags: Byte;
  end;
  PSpecialProc = ^TSpecialProc;
  TSpecialProc = record
    P: TPSOnSpecialProcImport;
    namehash: Longint;
    Name: tbtstring;
    tag: pointer;
  end;

destructor TPSExceptionHandler.Destroy;
begin
  ExceptionObject.Free;
  inherited;
end;

procedure P_CM_A; begin end;
procedure P_CM_CA; begin end;
procedure P_CM_P; begin end;
procedure P_CM_PV; begin end;
procedure P_CM_PO; begin end;
procedure P_CM_C; begin end;
procedure P_CM_G; begin end;
procedure P_CM_CG; begin end;
procedure P_CM_CNG; begin end;
procedure P_CM_R; begin end;
procedure P_CM_ST; begin end;
procedure P_CM_PT; begin end;
procedure P_CM_CO; begin end;
procedure P_CM_CV; begin end;
procedure P_CM_SP; begin end;
procedure P_CM_BN; begin end;
procedure P_CM_VM; begin end;
procedure P_CM_SF; begin end;
procedure P_CM_FG; begin end;
procedure P_CM_PUEXH; begin end;
procedure P_CM_POEXH; begin end;
procedure P_CM_IN; begin end;
procedure P_CM_SPB; begin end;
procedure P_CM_INC; begin end;
procedure P_CM_DEC; begin end;

function IntPIFVariantToVariant(Src: pointer; aType: TPSTypeRec; var Dest: Variant): Boolean; forward;


procedure Set_Union(Dest, Src: PByteArray; ByteSize: Integer);
var
  i: Longint;
begin
  for i := ByteSize -1 downto 0 do
    Dest^[i] := Dest^[i] or Src^[i];
end;

procedure Set_Diff(Dest, Src: PByteArray; ByteSize: Integer);
var
  i: Longint;
begin
  for i := ByteSize -1 downto 0 do
    Dest^[i] := Dest^[i] and not Src^[i];
end;

procedure Set_Intersect(Dest, Src: PByteArray; ByteSize: Integer);
var
  i: Longint;
begin
  for i := ByteSize -1 downto 0 do
    Dest^[i] := Dest^[i] and Src^[i];
end;

procedure Set_Subset(Dest, Src: PByteArray; ByteSize: Integer; var Val: Boolean);
var
  i: Integer;
begin
  for i := ByteSize -1 downto 0 do
  begin
    if not (Src^[i] and Dest^[i] = Dest^[i]) then
    begin
      Val := False;
      exit;
    end;
  end;
  Val := True;
end;

procedure Set_Equal(Dest, Src: PByteArray; ByteSize: Integer; var Val: Boolean);
var
  i: Longint;
begin
  for i := ByteSize -1 downto 0 do
  begin
    if Dest^[i] <> Src^[i] then
    begin
      Val := False;
      exit;
    end;
  end;
  val := True;
end;

procedure Set_membership(Item: Longint; Src: PByteArray; var Val: Boolean);
begin
  Val := (Src^[Item shr 3] and (1 shl (Item and 7))) <> 0;
end;


procedure RCIFreeProc(Sender: TPSExec; P: TPSRuntimeClassImporter);
begin
  p.Free;
end;

function Trim(const s: tbtstring): tbtstring;
begin
  Result := s;
  while (Length(result) > 0) and (Result[1] = #32) do Delete(Result, 1, 1);
  while (Length(result) > 0) and (Result[Length(Result)] = #32) do Delete(Result, Length(Result), 1);
end;
(*function FloatToStr(E: Extended): tbtstring;
begin
  Result := Sysutils.FloatToStr(e);
end;*)

//-------------------------------------------------------------------

function Padl(s: tbtstring; i: longInt): tbtstring;
begin
  result := StringOfChar(tbtchar(' '), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function Padz(s: tbtString; i: longInt): tbtString;
begin
  result := StringOfChar(tbtchar('0'), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function Padr(s: tbtString; i: longInt): tbtString;
begin
  result := s + StringOfChar(tbtchar(' '), i - Length(s));
end;
//-------------------------------------------------------------------

{$IFNDEF PS_NOWIDESTRING}
function wPadl(s: tbtwidestring; i: longInt): tbtwidestring;
begin
  result := StringOfChar(tbtwidechar(' '), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function wPadz(s: tbtwidestring; i: longInt): tbtwidestring;
begin
  result := StringOfChar(tbtwidechar('0'), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function wPadr(s: tbtwidestring; i: longInt): tbtwidestring;
begin
  result := s + StringOfChar(tbtwidechar(' '), i - Length(s));
end;

function uPadl(s: tbtunicodestring; i: longInt): tbtunicodestring;
begin
  result := StringOfChar(tbtwidechar(' '), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function uPadz(s: tbtunicodestring; i: longInt): tbtunicodestring;
begin
  result := StringOfChar(tbtwidechar('0'), i - length(s)) + s;
end;
//-------------------------------------------------------------------

function uPadr(s: tbtunicodestring; i: longInt): tbtunicodestring;
begin
  result := s + StringOfChar(tbtwidechar(' '), i - Length(s));
end;

{$ENDIF}
{$IFNDEF PS_NOWIDESTRING}
function MakeWString(const s: tbtunicodestring): tbtString;
var
  i: Longint;
  e: tbtString;
  b: boolean;
begin
  Result := tbtString(s);
  i := 1;
  b := false;
  while i <= length(result) do
  begin
    if Result[i] = '''' then
    begin
      if not b then
      begin
        b := true;
        Insert('''', Result, i);
        inc(i);
      end;
      Insert('''', Result, i);
      inc(i, 2);
    end else if (Result[i] < #32) or (Result[i] > #255) then
    begin
      e := '#'+inttostr(ord(Result[i]));
      Delete(Result, i, 1);
      if b then
      begin
        b := false;
        Insert('''', Result, i);
        inc(i);
      end;
      Insert(e, Result, i);
      inc(i, length(e));
    end else begin
      if not b then
      begin
        b := true;
        Insert('''', Result, i);
        inc(i, 2);
      end else
        inc(i);
    end;
  end;
  if b then
  begin
    Result := Result + '''';
  end;
  if Result = '' then
    Result := '''''';
end;
{$ENDIF}
function MakeString(const s: tbtString): tbtString;
var
  i: Longint;
  e: tbtString;
  b: boolean;
begin
  Result := s;
  i := 1;
  b := false;
  while i <= length(result) do
  begin
    if Result[i] = '''' then
    begin
      if not b then
      begin
        b := true;
        Insert('''', Result, i);
        inc(i);
      end;
      Insert('''', Result, i);
      inc(i, 2);
    end else if (Result[i] < #32) then
    begin
      e := '#'+inttostr(ord(Result[i]));
      Delete(Result, i, 1);
      if b then
      begin
        b := false;
        Insert('''', Result, i);
        inc(i);
      end;
      Insert(e, Result, i);
      inc(i, length(e));
    end else begin
      if not b then
      begin
        b := true;
        Insert('''', Result, i);
        inc(i, 2);
      end else
        inc(i);
    end;
  end;
  if b then
  begin
    Result := Result + '''';
  end;
  if Result = '' then
    Result := '''''';
end;

function SafeStr(const s: tbtString): tbtString;
var
 i : Longint;
begin
  Result := s;
  for i := 1 to length(s) do
  begin
    if s[i] in [#0..#31] then
    begin
      Result := Copy(s, 1, i-1);
      exit;
    end;
  end;

end;

function PropertyToString(Instance: TObject; PName: tbtString): tbtString;
var
  s: tbtString;
  i: Longint;
  PP: PPropInfo;
begin
  if PName = '' then
  begin
    Result := tbtString(Instance.ClassName);
    exit;
  end;
  while Length(PName) > 0 do
  begin
    i := pos(tbtChar('.'), pname);
    if i = 0 then
    begin
      s := Trim(PNAme);
      pname := '';
    end else begin
      s := trim(Copy(PName, 1, i-1));
      Delete(PName, 1, i);
    end;
    pp := GetPropInfo(PTypeInfo(Instance.ClassInfo), string(s));
    if pp = nil then begin Result := tbtstring(RPS_UnknownIdentifier); exit; end;


    case pp^.PropType^.Kind of
      tkInteger: begin Result := IntToStr(GetOrdProp(Instance, pp)); exit; end;
      tkChar: begin Result := '#'+IntToStr(GetOrdProp(Instance, pp)); exit; end;
      tkEnumeration: begin Result := tbtstring(GetEnumName(pp^.PropType{$IFNDEF FPC}{$IFDEF DELPHI3UP}^{$ENDIF}{$ENDIF}, GetOrdProp(Instance, pp))); exit; end;
      tkFloat: begin Result := FloatToStr(GetFloatProp(Instance, PP)); exit; end;
      tkString, tkLString: begin Result := ''''+tbtString(GetStrProp(Instance, PP))+''''; exit; end;
      tkSet: begin Result := '[Set]'; exit; end;
      tkClass: begin Instance := TObject(GetOrdProp(Instance, pp)); end;
      tkMethod: begin Result := '[Method]'; exit; end;
      tkVariant: begin Result := '[Variant]'; exit; end;
	  {$IFDEF DELPHI6UP}
	  {$IFNDEF PS_NOWIDESTRING}
      tkWString: begin Result := ''''+tbtString(GetWideStrProp(Instance, pp))+''; end; {$ENDIF}
	  {$ENDIF}
      else begin Result := '[Unknown]'; exit; end;
    end;
    if Instance = nil then begin result := 'nil'; exit; end;
  end;
  Result := tbtstring(Instance.ClassName);
end;

function ClassVariantInfo(const pvar: TPSVariantIFC; const PropertyName: tbtString): tbtString;
begin
  if pvar.aType.BaseType = btClass then
  begin
    if TObject(pvar.Dta^) = nil then
      Result := 'nil'
    else
      Result := PropertyToString(TObject(pvar.Dta^), PropertyName);
  end else if pvar.atype.basetype = btInterface then
      Result := 'Interface'
  else Result := tbtstring(RPS_InvalidType);
end;

function PSVariantToString(const p: TPSVariantIFC; const ClassProperties: tbtString): tbtString;
var
  i, n: Longint;
begin
  if p.Dta = nil then
  begin
    Result := 'nil';
    exit;
  end;
  if (p.aType.BaseType = btVariant) then
  begin
    try
      if TVarData(p.Dta^).VType = varDispatch then
        Result := 'Variant(IDispatch)'
      else if TVarData(p.Dta^).VType = varNull then
        REsult := 'Null'
      else if (TVarData(p.Dta^).VType = varOleStr) then
      {$IFDEF PS_NOWIDESTRING}
        Result := MakeString(Variant(p.Dta^))
      {$ELSE}
        Result := MakeWString(variant(p.dta^))
      {$ENDIF}
      else if TVarData(p.Dta^).VType = varString then
        Result := MakeString(tbtstring(variant(p.Dta^)))
      else
      Result := tbtstring(Variant(p.Dta^));
    except
      on e: Exception do
        Result := tbtstring(Format (RPS_Exception, [e.Message]));
    end;
    exit;
  end;
  case p.aType.BaseType of
    btProcptr: begin Result := 'Proc: '+inttostr(tbtu32(p.Dta^)); end;
    btU8: str(tbtu8(p.dta^), Result);
    btS8: str(tbts8(p.dta^), Result);
    btU16: str(tbtu16(p.dta^), Result);
    btS16: str(tbts16(p.dta^), Result);
    btU32: str(tbtu32(p.dta^), Result);
    btS32: str(tbts32(p.dta^), Result);
    btSingle: str(tbtsingle(p.dta^), Result);
    btDouble: str(tbtdouble(p.dta^), Result);
    btExtended: str(tbtextended(p.dta^), Result);
    btString: Result := makestring(tbtString(p.dta^));
    btPChar:
      begin
        if PansiChar(p.dta^) = nil then
          Result := 'nil'
        else
          Result := MakeString(PAnsiChar(p.dta^));
      end;
    btchar: Result := MakeString(tbtchar(p.dta^));
    {$IFNDEF PS_NOWIDESTRING}
    btwidechar: Result := MakeWString(tbtwidechar(p.dta^));
    btWideString: Result := MakeWString(tbtwidestring(p.dta^));
    btUnicodeString: Result := MakeWString(tbtUnicodeString(p.dta^));
    {$ENDIF}
    {$IFNDEF PS_NOINT64}btS64: str(tbts64(p.dta^), Result);{$ENDIF}
    btStaticArray, btArray:
      begin
        Result := '';
        if p.aType.BaseType = btStaticArray then
          n := TPSTypeRec_StaticArray(p.aType).Size
        else
          n := PSDynArrayGetLength(Pointer(p.dta^), p.aType);
        for i := 0 to n-1 do begin
          if Result <> '' then
            Result := Result + ', ';
          Result := Result + PSVariantToString(PSGetArrayField(p, i), '');
        end;
        Result := '[' + Result + ']';
      end;
    btRecord:
      begin
        Result := '';
        n := TPSTypeRec_Record(p.aType).FFieldTypes.Count;
        for i := 0 to n-1 do begin
          if Result <> '' then
            Result := Result + ', ';
          Result := Result + PSVariantToString(PSGetRecField(p, i), '');
        end;
        Result := '(' + Result + ')';
      end;
    btPointer: Result := 'Nil';
    btClass, btInterface:
      begin
        Result := ClassVariantInfo(p, ClassProperties)
      end;
  else
    Result := tbtString(RPS_Invalid);
  end;
end;



function TIFErrorToString(x: TPSError; const Param: tbtString): tbtString;
begin
  Result := PSErrorToString(x,param);
end;

function PSErrorToString(x: TPSError; const Param: tbtString): tbtString;
begin
  case x of
    ErNoError: Result := tbtString(RPS_NoError);
    erCannotImport: Result := tbtString(Format (RPS_CannotImport, [Safestr(Param)]));
    erInvalidType: Result := tbtString(RPS_InvalidType);
    ErInternalError: Result := tbtString(RPS_InternalError);
    erInvalidHeader: Result := tbtString(RPS_InvalidHeader);
    erInvalidOpcode: Result := tbtString(RPS_InvalidOpcode);
    erInvalidOpcodeParameter: Result := tbtString(RPS_InvalidOpcodeParameter);
    erNoMainProc: Result := tbtString(RPS_NoMainProc);
    erOutOfGlobalVarsRange: Result := tbtString(RPS_OutOfGlobalVarsRange);
    erOutOfProcRange: Result := tbtString(RPS_OutOfProcRange);
    ErOutOfRange: Result := tbtString(RPS_OutOfRange);
    erOutOfStackRange: Result := tbtString(RPS_OutOfStackRange);
    ErTypeMismatch: Result := tbtString(RPS_TypeMismatch);
    erUnexpectedEof: Result := tbtString(RPS_UnexpectedEof);
    erVersionError: Result := tbtString(RPS_VersionError);
    ErDivideByZero: Result := tbtString(RPS_DivideByZero);
    erMathError: Result := tbtString(RPS_MathError);
    erCouldNotCallProc: begin Result := tbtString(RPS_CouldNotCallProc); if (Param <> '') then Result := result +' ('+Param+')'; end;
    erOutofRecordRange: Result := tbtString(RPS_OutofRecordRange);
    erNullPointerException: Result := tbtString(RPS_NullPointerException);
    erNullVariantError: Result := tbtString(RPS_NullVariantError);
    erOutOfMemory: Result := tbtString(RPS_OutOfMemory);
    erException: Result := tbtString(Format (RPS_Exception, [Param]));
    erInterfaceNotSupported: Result := tbtString(RPS_InterfaceNotSupported);
    erCustomError: Result := Param;
      else
    Result := tbtString(RPS_UnknownError);
  end;
  //
end;


procedure TPSTypeRec.CalcSize;
begin
  case BaseType of
    btVariant: FRealSize := sizeof(Variant);
    btChar, bts8, btU8: FrealSize := 1 ;
    {$IFNDEF PS_NOWIDESTRING}btWideChar, {$ENDIF}bts16, btU16: FrealSize := 2;
    {$IFNDEF PS_NOWIDESTRING}btWideString,
    btUnicodeString,
    {$ENDIF}{$IFNDEF PS_NOINTERFACES}btInterface, {$ENDIF}btSingle, bts32, btU32,
    btclass, btPChar, btString: FrealSize := PointerSize;
    btProcPtr: FRealSize := 2 * sizeof(Pointer) + sizeof(Cardinal);
    btCurrency: FrealSize := Sizeof(Currency);
    btPointer: FRealSize := 2 * sizeof(Pointer) + sizeof(LongBool); // ptr, type, freewhendone
    btDouble{$IFNDEF PS_NOINT64}, bts64{$ENDIF}: FrealSize := 8;
    btExtended: FrealSize := SizeOf(Extended);
    btReturnAddress: FrealSize := Sizeof(TBTReturnAddress);
  else
    FrealSize := 0;
  end;
end;

constructor TPSTypeRec.Create(Owner: TPSExec);
begin
  inherited Create;
  FAttributes := TPSRuntimeAttributes.Create(Owner);
end;

destructor TPSTypeRec.Destroy;
begin
  FAttributes.Free;
  inherited destroy;
end;

{ TPSTypeRec_Record }

procedure TPSTypeRec_Record.CalcSize;
begin
  inherited;
  FrealSize := TPSTypeRec(FFieldTypes[FFieldTypes.Count-1]).RealSize +
    IPointer(RealFieldOffsets[RealFieldOffsets.Count -1]);
end;

constructor TPSTypeRec_Record.Create(Owner: TPSExec);
begin
  inherited Create(Owner);
  FRealFieldOffsets := TPSList.Create;
  FFieldTypes := TPSList.Create;
end;

destructor TPSTypeRec_Record.Destroy;
begin
  FFieldTypes.Free;
  FRealFieldOffsets.Free;
  inherited Destroy;
end;


const
  RTTISize = sizeof(TPSVariant);

procedure InitializeVariant(p: Pointer; aType: TPSTypeRec);
var
  t: TPSTypeRec;
  i: Longint;
begin
  case aType.BaseType of
    btChar, bts8, btU8: tbtu8(p^) := 0;
    {$IFNDEF PS_NOWIDESTRING}btWideChar, {$ENDIF}bts16, btU16: tbtu16(p^) := 0;
    btSingle, bts32, btU32,
    btPChar, btString, {$IFNDEF PS_NOWIDESTRING}btUnicodeString, btWideString, {$ENDIF}btClass,
    btInterface, btArray: Pointer(P^) := nil;
    btPointer:
      begin
        Pointer(p^) := nil;
        Pointer(Pointer(IPointer(p)+PointerSize)^) := nil;
        Pointer(Pointer(IPointer(p)+(2*PointerSize))^) := nil;
      end;
    btProcPtr:
      begin
        Longint(p^) := 0;
        Pointer(Pointer(IPointer(p)+PointerSize)^) := nil;
        Pointer(Pointer(IPointer(p)+(2*PointerSize))^) := nil;
      end;
    btCurrency: tbtCurrency(P^) := 0;
    btDouble{$IFNDEF PS_NOINT64}, bts64{$ENDIF}: {$IFNDEF PS_NOINT64}tbtS64(P^) := 0{$ELSE}tbtdouble(p^) := 0 {$ENDIF};
    btExtended: tbtExtended(p^) := 0;
    btVariant: Initialize(Variant(p^));
    btReturnAddress:; // there is no point in initializing a return address
    btRecord:
      begin
        for i := 0 to TPSTypeRec_Record(aType).FFieldTypes.Count -1 do
        begin
          t := TPSTypeRec_Record(aType).FieldTypes[i];
          InitializeVariant(P, t);
          p := Pointer(IPointer(p) + t.FrealSize);
        end;
      end;
    btStaticArray:
      begin
        t := TPSTypeRec_Array(aType).ArrayType;
        for i := 0 to TPSTypeRec_StaticArray(aType).Size -1 do
        begin
          InitializeVariant(p, t);
          p := Pointer(IPointer(p) + t.RealSize);
        end;
      end;
    btSet:
      begin
        FillChar(p^, TPSTypeRec_Set(aType).RealSize, 0);
      end;
  end;
end;

procedure DestroyHeapVariant2(v: Pointer; aType: TPSTypeRec); forward;

const
  NeedFinalization = [btStaticArray, btRecord, btArray, btPointer, btVariant {$IFNDEF PS_NOINTERFACES}, btInterface{$ENDIF}, btString {$IFNDEF PS_NOWIDESTRING}, btUnicodestring,btWideString{$ENDIF}];

procedure FinalizeVariant(p: Pointer; aType: TPSTypeRec);
var
  t: TPSTypeRec;
  elsize: Cardinal;
  i, l: Longint;
  darr: Pointer;
begin
  case aType.BaseType of
    btString: tbtString(p^) := '';
    {$IFNDEF PS_NOWIDESTRING}
    btWideString: tbtwidestring(p^) := '';
    btUnicodeString: tbtunicodestring(p^) := '';
    {$ENDIF}
    {$IFNDEF PS_NOINTERFACES}btInterface:
      begin
        {$IFNDEF DELPHI3UP}
        if IUnknown(p^) <> nil then
          IUnknown(p^).Release;
        {$ENDIF}
        IUnknown(p^) := nil;
      end; {$ENDIF}
    btVariant:
    begin
      try
        Finalize(Variant(p^));
      except
      end;
    end;
    btPointer:
      if Pointer(Pointer(IPointer(p)+PointerSize2)^) <> nil then
      begin
        DestroyHeapVariant2(Pointer(p^), Pointer(Pointer(IPointer(p)+PointerSize)^));
        Pointer(p^) := nil;
      end;
    btArray:
      begin
        if IPointer(P^) = 0 then exit;
        darr := Pointer(IPointer(p^) - PointerSize2);
        if Longint(darr^) < 0 then exit;// refcount < 0 means don't free
        Dec(Longint(darr^));
        if Longint(darr^) <> 0 then exit;
        t := TPSTypeRec_Array(aType).ArrayType;
        elsize := t.RealSize;
        darr := Pointer(IPointer(darr) + PointerSize);
        l := Longint(darr^) {$IFDEF FPC}+1{$ENDIF};
        darr := Pointer(IPointer(darr) + PointerSize);
        case t.BaseType of
          btString, {$IFNDEF PS_NOWIDESTRING}
          btUnicodeString, btWideString, {$ENDIF}{$IFNDEF PS_NOINTERFACES}btInterface, {$ENDIF}btArray, btStaticArray,
          btRecord, btPointer, btVariant:
            begin
              for i := 0 to l -1 do
              begin
                FinalizeVariant(darr, t);
                darr := Pointer(IPointer(darr) + elsize);
              end;
            end;
        end;
        FreeMem(Pointer(IPointer(p^) - IPointer(PointerSize2)), IPointer(Cardinal(l) * elsize) + IPointer(PointerSize2));
        Pointer(P^) := nil;
      end;
    btRecord:
      begin
        for i := 0 to TPSTypeRec_Record(aType).FFieldTypes.Count -1 do
        begin
          t := TPSTypeRec_Record(aType).FieldTypes[i];
          case t.BaseType of
            btString, {$IFNDEF PS_NOWIDESTRING}btUnicodeString, btWideString, {$ENDIF}{$IFNDEF PS_NOINTERFACES}btInterface, {$ENDIF}btArray, btStaticArray,
            btRecord: FinalizeVariant(p, t);
          end;
          p := Pointer(IPointer(p) + t.FrealSize);
        end;
      end;
    btStaticArray:
      begin
        t := TPSTypeRec_Array(aType).ArrayType;
        case t.BaseType of
          btString, {$IFNDEF PS_NOWIDESTRING}btUnicodeString, btWideString, {$ENDIF}{$IFNDEF PS_NOINTERFACES}btInterface, {$ENDIF}btArray, btStaticArray,
          btRecord: ;
          else Exit;
        end;
        for i := 0 to TPSTypeRec_StaticArray(aType).Size -1 do
        begin
          FinalizeVariant(p, t);
          p := Pointer(IPointer(p) + t.RealSize);
        end;
      end;
  end;
end;

function CreateHeapVariant2(aType: TPSTypeRec): Pointer;
begin
  GetMem(Result, aType.RealSize);
  InitializeVariant(Result, aType);
end;

procedure DestroyHeapVariant2(v: Pointer; aType: TPSTypeRec);
begin
  if v = nil then exit;
  if atype.BaseType in NeedFinalization then
    FinalizeVariant(v, aType);
  FreeMem(v, aType.RealSize);
end;


function CreateHeapVariant(aType: TPSTypeRec): PPSVariant;
var
  aSize: Longint;
begin
  aSize := aType.RealSize + RTTISize;
  GetMem(Result, aSize);
  Result.FType := aType;
  InitializeVariant(Pointer(IPointer(Result)+PointerSize), aType);
end;

procedure DestroyHeapVariant(v: PPSVariant);
begin
  if v = nil then exit;
  if v.FType.BaseType in NeedFinalization then
    FinalizeVariant(Pointer(IPointer(v)+PointerSize), v.FType);
  FreeMem(v, v.FType.RealSize + RTTISize);
end;

procedure FreePSVariantList(l: TPSList);
var
  i: Longint;
begin
  for i:= l.count -1 downto 0 do
    DestroyHeapVariant(l[i]);
  l.free;
end;

procedure FreePIFVariantList(l: TPSList);
begin
  FreePsVariantList(l);
end;

{ TPSExec }

procedure TPSExec.ClearFunctionList;
var
  x: PProcRec;
  l: Longint;
begin
  for l := FAttributeTypes.Count -1 downto 0 do
  begin
    TPSAttributeType(FAttributeTypes.Data^[l]).Free;
  end;
  FAttributeTypes.Clear;

  for l := 0 to FRegProcs.Count - 1 do
  begin
    x := FRegProcs.Data^[l];
    if @x^.FreeProc <> nil then x^.FreeProc(Self, x);
    Dispose(x);
  end;
  FRegProcs.Clear;
  RegisterStandardProcs;
end;

class function TPSExec.About: tbtString;
begin
  Result := 'RemObjects Pascal Script. Copyright (c) 2004-2009 by RemObjects Software';
end;

procedure TPSExec.Cleanup;
var
  I: Longint;
  p: Pointer;
begin
  if FStatus <> isLoaded then
    exit;
  FStack.Clear;
  FTempVars.Clear;
  for I := Longint(FGlobalVars.Count) - 1 downto 0 do
  begin
    p := FGlobalVars.Items[i];
    if PIFTypeRec(P^).BaseType in NeedFinalization then
      FinalizeVariant(Pointer(IPointer(p)+PointerSize), Pointer(P^));
    InitializeVariant(Pointer(IPointer(p)+PointerSize), Pointer(P^));
  end;
end;

procedure TPSExec.Clear;
var
  I: Longint;
  temp: PPSResource;
  Proc: TPSResourceFreeProc;
  pp: TPSExceptionHandler;
begin
  for i := Longint(FExceptionStack.Count) -1 downto 0 do
  begin
    pp := FExceptionStack.Data^[i];
    pp.Free;
  end;
  for i := Longint(FResources.Count) -1 downto 0 do
  begin
    Temp := FResources.Data^[i];
    Proc := Temp^.Proc;
    Proc(Self, Temp^.P);
    Dispose(Temp);
  end;
  for i := Longint(FExportedVars.Count) -1 downto 0 do
    Dispose(PPSExportedVar(FExportedVars.Data^[I]));
  for I := Longint(FProcs.Count) - 1downto 0  do
    TPSProcRec(FProcs.Data^[i]).Destroy;
  FProcs.Clear;
  FGlobalVars.Clear;
  FStack.Clear;
  for I := Longint(FTypes.Count) - 1downto 0  do
    TPSTypeRec(FTypes.Data^[i]).Free;
  FTypes.Clear;
  FStatus := isNotLoaded;
  FResources.Clear;
  FExportedVars.Clear;
  FExceptionStack.Clear;
  FCurrStackBase := InvalidVal;
end;

constructor TPSExec.Create;
begin
  inherited Create;
  FAttributeTypes := TPSList.Create;
  FExceptionStack := TPSList.Create;
  FCallCleanup := False;
  FResources := TPSList.Create;
  FTypes := TPSList.Create;
  FProcs := TPSList.Create;
  FGlobalVars := TPSStack.Create;
  FTempVars := TPSStack.Create;
  FMainProc := 0;
  FStatus := isNotLoaded;
  FRegProcs := TPSList.Create;
  FExportedVars := TPSList.create;
  FSpecialProcList := TPSList.Create;
  RegisterStandardProcs;
  FReturnAddressType := TPSTypeRec.Create(self);
  FReturnAddressType.BaseType := btReturnAddress;
  FReturnAddressType.CalcSize;
  FVariantType := TPSTypeRec.Create(self);
  FVariantType.BaseType := btVariant;
  FVariantType.CalcSize;
  FVariantArrayType := TPSTypeRec_Array.Create(self);
  FVariantArrayType.BaseType := btArray;
  FVariantArrayType.CalcSize;
  TPSTypeRec_Array(FVariantArrayType).ArrayType := FVariantType;
  FStack := TPSStack.Create;
end;

destructor TPSExec.Destroy;
var
  I: Longint;
  x: PProcRec;
  P: PSpecialProc;
begin
  Clear;
  FReturnAddressType.Free;
  FVariantType.Free;
  FVariantArrayType.Free;

  if ExObject <> nil then ExObject.Free;
  for I := FSpecialProcList.Count -1 downto 0 do
  begin
    P := FSpecialProcList.Data^[I];
    Dispose(p);
  end;
  FResources.Free;
  FExportedVars.Free;
  FTempVars.Free;
  FStack.Free;
  FGlobalVars.Free;
  FProcs.Free;
  FTypes.Free;
  FSpecialProcList.Free;
  for i := FRegProcs.Count - 1 downto 0 do
  begin
    x := FRegProcs.Data^[i];
    if @x^.FreeProc <> nil then x^.FreeProc(Self, x);
    Dispose(x);
  end;
  FRegProcs.Free;
  FExceptionStack.Free;
  for i := FAttributeTypes.Count -1 downto 0 do
  begin
    TPSAttributeType(FAttributeTypes[i]).Free;
  end;
  FAttributeTypes.Free;
  inherited Destroy;
end;

procedure TPSExec.ExceptionProc(proc, Position: Cardinal; Ex: TPSError; const s: tbtString; NewObject: TObject);
var
  d, l: Longint;
  pp: TPSExceptionHandler;
begin
  ExProc := proc;
  ExPos := Position;
  ExEx := Ex;
  ExParam := s;
  if ExObject <> nil then
    ExObject.Free;
  ExObject := NewObject;
  if Ex = eNoError then Exit;
  for d := FExceptionStack.Count -1 downto 0 do
  begin
    pp := FExceptionStack[d];
    if Cardinal(FStack.Count) > pp.StackSize then
    begin
      for l := Longint(FStack.count) -1 downto Longint(pp.StackSize) do
        FStack.Pop;
    end;
    if pp.CurrProc = nil then // no point in continuing
    begin
      pp.Free;
      FExceptionStack.DeleteLast;

      FCurrStackBase := InvalidVal;
      FStatus := isPaused;
      exit;
    end;
    FCurrProc := pp.CurrProc;
    FData := FCurrProc.Data;
    FDataLength := FCurrProc.Length;

    FCurrStackBase := pp.BasePtr;
    if pp.FinallyOffset <> InvalidVal then
    begin
      FCurrentPosition := pp.FinallyOffset;
      pp.FinallyOffset := InvalidVal;
      Exit;
    end else if (pp.ExceptOffset <> InvalidVal) and (pp.ExceptOffset <> Cardinal(InvalidVal -1)) then
    begin
        FCurrentPosition := pp.ExceptOffset;
      pp.ExceptOffset := Cardinal(InvalidVal -1);
      pp.ExceptionObject := ExObject;
      pp.ExceptionData := ExEx;
      pp.ExceptionParam := ExParam;
      ExObject := nil;
      ExEx := ENoError;
      Exit;
    end else if pp.Finally2Offset <> InvalidVal then
    begin
      FCurrentPosition := pp.Finally2Offset;
      pp.Finally2Offset := InvalidVal;
      Exit;
    end;
    pp.Free;
    FExceptionStack.DeleteLast;
  end;
  if FStatus <> isNotLoaded then
    FStatus := isPaused;
end;

function LookupProc(List: TPSList; const Name: ShortString): PProcRec;
var
  h, l: Longint;
  p: PProcRec;
begin
  h := MakeHash(Name);
  for l := List.Count - 1 downto 0 do
  begin
    p := List.Data^[l];
    if (p^.Hash = h) and (p^.Name = Name) then
    begin
      Result := List[l];
      exit;
    end;
  end;
  Result := nil;
end;

function TPSExec.ImportProc(const Name: ShortString; proc: TPSExternalProcRec): Boolean;
var
  u: PProcRec;
  fname: tbtString;
  I, fnh: Longint;
  P: PSpecialProc;

begin
  if name = '' then
  begin
    fname := proc.Decl;
    fname := copy(fname, 1, pos(tbtchar(':'), fname)-1);
    fnh := MakeHash(fname);
    for I := FSpecialProcList.Count -1 downto 0 do
    begin
      p := FSpecialProcList[I];
      IF (p^.name = '') or ((p^.namehash = fnh) and (p^.name = fname)) then
      begin
        if p^.P(Self, Proc, p^.tag) then
        begin
          Result := True;
          exit;
        end;
      end;
    end;
    Result := FAlse;
    exit;
  end;
  u := LookupProc(FRegProcs, Name);
  if u = nil then begin
    Result := False;
    exit;
  end;
  proc.ProcPtr := u^.ProcPtr;
  proc.Ext1 := u^.Ext1;
  proc.Ext2 := u^.Ext2;
  Result := True;
end;

function TPSExec.RegisterFunctionName(const Name: tbtString; ProcPtr: TPSProcPtr; Ext1, Ext2: Pointer): PProcRec;
var
  p: PProcRec;
  s: tbtString;
begin
  s := FastUppercase(Name);
  New(p);
  p^.Name := s;
  p^.Hash := MakeHash(s);
  p^.ProcPtr := ProcPtr;
  p^.FreeProc := nil;
  p.Ext1 := Ext1;
  p^.Ext2 := Ext2;
  FRegProcs.Add(p);
  Result := P;
end;

function TPSExec.LoadData(const s: tbtString): Boolean;
var
  HDR: TPSHeader;
  Pos: Cardinal;

  function read(var Data; Len: Cardinal): Boolean;
  begin
    if Longint(Pos + Len) <= Length(s) then begin
      Move(s[Pos + 1], Data, Len);
      Pos := Pos + Len;
      read := True;
    end
    else
      read := False;
  end;
  function ReadAttributes(Dest: TPSRuntimeAttributes): Boolean;
  var
    Count: Cardinal;
    i: Integer;

    function ReadAttrib: Boolean;
    var
      NameLen: Longint;
      Name: tbtString;
      TypeNo: Cardinal;
      i, h, FieldCount: Longint;
      att: TPSRuntimeAttribute;
      varp: PIFVariant;

    begin
      if (not Read(NameLen, 4)) or (NameLen > Length(s) - Longint(Pos)) then
      begin
        CMD_Err(ErOutOfRange);
        Result := false;
        exit;
      end;
      SetLength(Name, NameLen);
      if not Read(Name[1], NameLen) then
      begin
        CMD_Err(ErOutOfRange);
        Result := false;
        exit;
      end;
      if not Read(FieldCount, 4) then
      begin
        CMD_Err(ErOutOfRange);
        Result := false;
        exit;
      end;
      att := Dest.Add;
      att.AttribType := Name;
      att.AttribTypeHash := MakeHash(att.AttribType);
      for i := 0 to FieldCount -1 do
      begin
        if (not Read(TypeNo, 4)) or (TypeNo >= Cardinal(FTypes.Count)) then
        begin
          CMD_Err(ErOutOfRange);
          Result := false;
          exit;
        end;

        varp := att.AddValue(FTypes[TypeNo]);
        case VarP^.FType.BaseType of
          btSet:
            begin
              if not read(PPSVariantSet(varp).Data, TPSTypeRec_Set(varp.FType).aByteSize) then
              begin
                CMD_Err(erOutOfRange);

                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
            end;
          bts8, btchar, btU8: if not read(PPSVariantU8(VarP)^.data, 1) then
          begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          bts16, {$IFNDEF PS_NOWIDESTRING}btwidechar,{$ENDIF} btU16: if not read(PPSVariantU16(Varp)^.Data, SizeOf(TbtU16)) then begin
              CMD_Err(ErOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          bts32, btU32:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              PPSVariantU32(varp)^.Data := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              PPSVariantU32(varp)^.Data := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
            end;
          btProcPtr:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              PPSVariantU32(varp)^.Data := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              PPSVariantU32(varp)^.Data := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              if PPSVariantU32(varp)^.Data = 0 then
              begin
                PPSVariantProcPtr(varp)^.Ptr := nil;
                PPSVariantProcPtr(varp)^.Self := nil;
              end;
              Inc(FCurrentPosition, 4);
            end;
          {$IFNDEF PS_NOINT64}
          bts64: if not read(PPSVariantS64(VarP)^.Data, sizeof(tbts64)) then
            begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          {$ENDIF}
          btSingle: if not read(PPSVariantSingle(VarP)^.Data, SizeOf(TbtSingle))
            then begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          btDouble: if not read(PPSVariantDouble(varp)^.Data, SizeOf(TbtDouble))
            then begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          btExtended: if not read(PPSVariantExtended(varp)^.Data, SizeOf(TbtExtended))
            then begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          btCurrency: if not read(PPSVariantExtended(varp)^.Data, SizeOf(tbtCurrency))
            then begin
              CMD_Err(erOutOfRange);
              DestroyHeapVariant(VarP);
              Result := False;
              exit;
            end;
          btPchar, btString:
          begin
            if not read(NameLen, 4) then
            begin
                Cmd_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
              Inc(FCurrentPosition, 4);
              SetLength(PPSVariantAString(varp)^.Data, NameLen);
              if not read(PPSVariantAString(varp)^.Data[1], NameLen) then begin
                CMD_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
            end;
          {$IFNDEF PS_NOWIDESTRING}
          btWidestring:
            begin
              if not read(NameLen, 4) then
              begin
                Cmd_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
              Inc(FCurrentPosition, 4);
              SetLength(PPSVariantWString(varp).Data, NameLen);
              if not read(PPSVariantWString(varp).Data[1], NameLen*2) then begin
                CMD_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
            end;
          btUnicodeString:
            begin
              if not read(NameLen, 4) then
              begin
                Cmd_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
              Inc(FCurrentPosition, 4);
              SetLength(PPSVariantUString(varp).Data, NameLen);
              if not read(PPSVariantUString(varp).Data[1], NameLen*2) then begin
                CMD_Err(erOutOfRange);
                DestroyHeapVariant(VarP);
                Result := False;
                exit;
              end;
            end;
          {$ENDIF}
        else begin
            CMD_Err(erInvalidType);
            DestroyHeapVariant(VarP);
            Result := False;
            exit;
          end;
        end;
      end;
      h := MakeHash(att.AttribType);
      for i := FAttributeTypes.Count -1 downto 0 do
      begin
        if (TPSAttributeType(FAttributeTypes.Data^[i]).TypeNameHash = h) and
          (TPSAttributeType(FAttributeTypes.Data^[i]).TypeName = att.AttribType) then
        begin
          if not TPSAttributeType(FAttributeTypes.Data^[i]).UseProc(Self, att.AttribType, Att) then
          begin
            Result := False;
            exit;
          end;
        end;
      end;
      Result := True;
    end;


  begin
    if not Read(Count, 4) then
    begin
      CMD_Err(erOutofRange);
      Result := false;
      exit;
    end;
    for i := 0 to Count -1 do
    begin
      if not ReadAttrib then
      begin
        Result := false;
        exit;
      end;
    end;
    Result := True;
  end;

{$WARNINGS OFF}

  function LoadTypes: Boolean;
  var
    currf: TPSType;
    Curr: PIFTypeRec;
    fe: Boolean;
    l2, l: Longint;
    d: Cardinal;

    function resolve(Dta: TPSTypeRec_Record): Boolean;
    var
      offs, l: Longint;
    begin
      offs := 0;
      for l := 0 to Dta.FieldTypes.Count -1 do
      begin
        Dta.RealFieldOffsets.Add(Pointer(offs));
        offs := offs + TPSTypeRec(Dta.FieldTypes[l]).RealSize;
      end;
      Result := True;
    end;
  begin
    LoadTypes := True;
    for l := 0 to HDR.TypeCount - 1 do begin
      if not read(currf, SizeOf(currf)) then begin
        cmd_err(erUnexpectedEof);
        LoadTypes := False;
        exit;
      end;
      if (currf.BaseType and 128) <> 0 then begin
        fe := True;
        currf.BaseType := currf.BaseType - 128;
      end else
        fe := False;
      case currf.BaseType of
        {$IFNDEF PS_NOINT64}bts64, {$ENDIF}
        btU8, btS8, btU16, btS16, btU32, btS32, btSingle, btDouble, btCurrency,
        btExtended, btString, btPointer, btPChar,
        btVariant, btChar{$IFNDEF PS_NOWIDESTRING}, btUnicodeString, btWideString, btWideChar{$ENDIF}: begin
            curr := TPSTypeRec.Create(self);
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
        btClass:
          begin
            Curr := TPSTypeRec_Class.Create(self);
            if (not Read(d, 4)) or (d > 255) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            setlength(TPSTypeRec_Class(Curr).FCN, d);
            if not Read(TPSTypeRec_Class(Curr).FCN[1], d) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
        btProcPtr:
          begin
            Curr := TPSTypeRec_ProcPtr.Create(self);
            if (not Read(d, 4)) or (d > 255) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            setlength(TPSTypeRec_ProcPtr(Curr).FParamInfo, d);
            if not Read(TPSTypeRec_ProcPtr(Curr).FParamInfo[1], d) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
{$IFNDEF PS_NOINTERFACES}
        btInterface:
          begin
            Curr := TPSTypeRec_Interface.Create(self);
            if not Read(TPSTypeRec_Interface(Curr).FGUID, Sizeof(TGuid)) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
{$ENDIF}
        btSet:
          begin
            Curr := TPSTypeRec_Set.Create(self);
            if not Read(d, 4) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            if (d > 256) then
            begin
              curr.Free;
              cmd_err(erTypeMismatch);
              LoadTypes := False;
              exit;
            end;

            TPSTypeRec_Set(curr).aBitSize := d;
            TPSTypeRec_Set(curr).aByteSize := TPSTypeRec_Set(curr).aBitSize shr 3;
            if (TPSTypeRec_Set(curr).aBitSize and 7) <> 0 then inc(TPSTypeRec_Set(curr).fbytesize);
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
        btStaticArray:
          begin
            curr := TPSTypeRec_StaticArray.Create(self);
            if not Read(d, 4) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            if (d >= FTypes.Count) then
            begin
              curr.Free;
              cmd_err(erTypeMismatch);
              LoadTypes := False;
              exit;
            end;
            TPSTypeRec_StaticArray(curr).ArrayType := FTypes[d];
            if not Read(d, 4) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            if d > (MaxInt div 4) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            TPSTypeRec_StaticArray(curr).Size := d;
            if not Read(d,4) then                                             //<-additional StartOffset
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes:=false;
              Exit;
            end;
            TPSTypeRec_StaticArray(curr).StartOffset:=d;

            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
        btArray: begin
            Curr := TPSTypeRec_Array.Create(self);
            if not read(d, 4) then
            begin // Read type
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := False;
              exit;
            end;
            if (d >= FTypes.Count) then
            begin
              curr.Free;
              cmd_err(erTypeMismatch);
              LoadTypes := False;
              exit;
            end;
            Curr.BaseType := currf.BaseType;
            TPSTypeRec_Array(curr).ArrayType := FTypes[d];
            FTypes.Add(Curr);
          end;
        btRecord:
          begin
            curr := TPSTypeRec_Record.Create(self);
            if not read(d, 4) or (d = 0) then
            begin
              curr.Free;
              cmd_err(erUnexpectedEof);
              LoadTypes := false;
              exit;
            end;
            while d > 0 do
            begin
              if not Read(l2, 4) then
              begin
                curr.Free;
                cmd_err(erUnexpectedEof);
                LoadTypes := false;
                exit;
              end;
              if Cardinal(l2) >= FTypes.Count then
              begin
                curr.Free;
                cmd_err(ErOutOfRange);
                LoadTypes := false;
                exit;
              end;
              TPSTypeRec_Record(curR).FFieldTypes.Add(FTypes[l2]);
              Dec(D);
            end;
            if not resolve(TPSTypeRec_Record(curr)) then
            begin
              curr.Free;
              cmd_err(erInvalidType);
              LoadTypes := False;
              exit;
            end;
            Curr.BaseType := currf.BaseType;
            FTypes.Add(Curr);
          end;
      else begin
          LoadTypes := False;
          CMD_Err(erInvalidType);
          exit;
        end;
      end;
      if fe then begin
        if not read(d, 4) then begin
          cmd_err(erUnexpectedEof);
          LoadTypes := False;
          exit;
        end;
        if d > PSAddrNegativeStackStart then
        begin
          cmd_err(erInvalidType);
          LoadTypes := False;
          exit;
        end;
        SetLength(Curr.FExportName, d);
        if not read(Curr.fExportName[1], d) then
        begin
          cmd_err(erUnexpectedEof);
          LoadTypes := False;
          exit;
        end;
        Curr.ExportNameHash := MakeHash(Curr.ExportName);
      end;
      curr.CalcSize;
      if HDR.PSBuildNo >= 21 then // since build 21 we support attributes
      begin
        if not ReadAttributes(Curr.Attributes) then
        begin
          LoadTypes := False;
          exit;
        end;
      end;
    end;
  end;

  function LoadProcs: Boolean;
  var
    Rec: TPSProc;
    n: tbtString;
    b: Byte;
    l, L2, L3: Longint;
    Curr: TPSProcRec;
  begin
    LoadProcs := True;
    for l := 0 to HDR.ProcCount - 1 do begin
      if not read(Rec, SizeOf(Rec)) then begin
        cmd_err(erUnexpectedEof);
        LoadProcs := False;
        exit;
      end;
      if (Rec.Flags and 1) <> 0 then
      begin
        Curr := TPSExternalProcRec.Create(Self);
        if not read(b, 1) then begin
          Curr.Free;
          cmd_err(erUnexpectedEof);
          LoadProcs := False;
          exit;
        end;
        SetLength(n, b);
        if not read(n[1], b) then begin
          Curr.Free;
          cmd_err(erUnexpectedEof);
          LoadProcs := False;
          exit;
        end;
        TPSExternalProcRec(Curr).Name := n;
        if (Rec.Flags and 3 = 3) then
        begin
          if (not Read(L2, 4)) or (L2 > Length(s) - Pos) then
          begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          SetLength(n, L2);
          Read(n[1], L2); // no check is needed
          TPSExternalProcRec(Curr).FDecl := n;
        end;
        if not ImportProc(TPSExternalProcRec(Curr).Name, TPSExternalProcRec(Curr)) then begin
          if TPSExternalProcRec(Curr).Name <> '' then
            CMD_Err2(erCannotImport, TPSExternalProcRec(Curr).Name)
          else
            CMD_Err2(erCannotImport, TPSExternalProcRec(curr).Decl);
          Curr.Free;
          LoadProcs := False;
          exit;
        end;
      end else begin
        Curr := TPSInternalProcRec.Create(Self);
        if not read(L2, 4) then begin
          Curr.Free;
          cmd_err(erUnexpectedEof);
          LoadProcs := False;
          exit;
        end;
        if not read(L3, 4) then begin
          Curr.Free;
          cmd_err(erUnexpectedEof);
          LoadProcs := False;
          exit;
        end;
        if (L2 < 0) or (L2 >= Length(s)) or (L2 + L3 > Length(s)) or (L3 = 0) then begin
          Curr.Free;
          cmd_err(erUnexpectedEof);
          LoadProcs := False;
          exit;
        end;

        GetMem(TPSInternalProcRec(Curr).FData, L3);
        Move(s[L2 + 1], TPSInternalProcRec(Curr).FData^, L3);
        TPSInternalProcRec(Curr).FLength := L3;
        if (Rec.Flags and 2) <> 0 then begin // exported
          if not read(L3, 4) then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          if L3 > PSAddrNegativeStackStart then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          SetLength(TPSInternalProcRec(Curr).FExportName, L3);
          if not read(TPSInternalProcRec(Curr).FExportName[1], L3) then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          if not read(L3, 4) then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          if L3 > PSAddrNegativeStackStart then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          SetLength(TPSInternalProcRec(Curr).FExportDecl, L3);
          if not read(TPSInternalProcRec(Curr).FExportDecl[1], L3) then begin
            Curr.Free;
            cmd_err(erUnexpectedEof);
            LoadProcs := False;
            exit;
          end;
          TPSInternalProcRec(Curr).FExportNameHash := MakeHash(TPSInternalProcRec(Curr).ExportName);
        end;
      end;
      if (Rec.Flags and 4) <> 0 then
      begin
        if not ReadAttributes(Curr.Attributes) then
        begin
          Curr.Free;
          LoadProcs := False;
          exit;
        end;
      end;
      FProcs.Add(Curr);
    end;
  end;
{$WARNINGS ON}

  function LoadVars: Boolean;
  var
    l, n: Longint;
    e: PPSExportedVar;
    Rec: TPSVar;
    Curr: PIfVariant;
  begin
    LoadVars := True;
    for l := 0 to HDR.VarCount - 1 do begin
      if not read(Rec, SizeOf(Rec)) then begin
        cmd_err(erUnexpectedEof);
        LoadVars := False;
        exit;
      end;
      if Rec.TypeNo >= HDR.TypeCount then begin
        cmd_err(erInvalidType);
        LoadVars := False;
        exit;
      end;
      Curr := FGlobalVars.PushType(FTypes.Data^[Rec.TypeNo]);
      if Curr = nil then begin
        cmd_err(erInvalidType);
        LoadVars := False;
        exit;
      end;
      if (Rec.Flags and 1) <> 0 then
      begin
        if not read(n, 4) then begin
          cmd_err(erUnexpectedEof);
          LoadVars := False;
          exit;
        end;
        new(e);
        try
          SetLength(e^.FName, n);
          if not Read(e^.FName[1], n) then
          begin
            dispose(e);
            cmd_err(erUnexpectedEof);
            LoadVars := False;
            exit;
          end;
          e^.FNameHash := MakeHash(e^.FName);
          e^.FVarNo := FGlobalVars.Count;
          FExportedVars.Add(E);
        except
          dispose(e);
          cmd_err(erInvalidType);
          LoadVars := False;
          exit;
        end;
      end;
    end;
  end;

begin
  Clear;
  Pos := 0;
  LoadData := False;
  if not read(HDR, SizeOf(HDR)) then
  begin
    CMD_Err(erInvalidHeader);
    exit;
  end;
  if HDR.HDR <> PSValidHeader then
  begin
    CMD_Err(erInvalidHeader);
    exit;
  end;
  if (HDR.PSBuildNo > PSCurrentBuildNo) or (HDR.PSBuildNo < PSLowBuildSupport) then begin
    CMD_Err(erInvalidHeader);
    exit;
  end;
  if not LoadTypes then
  begin
    Clear;
    exit;
  end;
  if not LoadProcs then
  begin
    Clear;
    exit;
  end;
  if not LoadVars then
  begin
    Clear;
    exit;
  end;
  if (HDR.MainProcNo >= FProcs.Count) and (HDR.MainProcNo <> InvalidVal)then begin
    CMD_Err(erNoMainProc);
    Clear;
    exit;
  end;
  // Load Import Table
  FMainProc := HDR.MainProcNo;
  FStatus := isLoaded;
  Result := True;
end;


procedure TPSExec.Pause;
begin
  if FStatus = isRunning then
    FStatus := isPaused;
end;

function TPSExec.ReadData(var Data; Len: Cardinal): Boolean;
begin
  if FCurrentPosition + Len <= FDataLength then begin
    Move(FData^[FCurrentPosition], Data, Len);
    FCurrentPosition := FCurrentPosition + Len;
    Result := True;
  end
  else
    Result := False;
end;

procedure TPSExec.CMD_Err(EC: TPSError); // Error
begin
  CMD_Err3(ec, '', nil);
end;

procedure VNSetPointerTo(const Src: TPSVariantIFC; Data: Pointer; aType: TPSTypeRec);
begin
  if Src.aType.BaseType = btPointer then
  begin
    if atype.BaseType in NeedFinalization then
      FinalizeVariant(src.Dta, Src.aType);
    Pointer(Src.Dta^) := Data;
    Pointer(Pointer(IPointer(Src.Dta)+PointerSize)^) := aType;
    Pointer(Pointer(IPointer(Src.Dta)+(2*PointerSize))^) := nil;
  end;
end;

function VNGetUInt(const Src: TPSVariantIFC): Cardinal;
begin
  Result := PSGetUInt(Src.Dta, Src.aType);
end;

{$IFNDEF PS_NOINT64}
function VNGetInt64(const Src: TPSVariantIFC): Int64;
begin
  Result := PSGetInt64(Src.Dta, Src.aType);
end;
{$ENDIF}

function VNGetReal(const Src: TPSVariantIFC): Extended;
begin
  Result := PSGetReal(Src.Dta, Src.aType);
end;

function VNGetCurrency(const Src: TPSVariantIFC): Currency;
begin
  Result := PSGetCurrency(Src.Dta, Src.aType);
end;

function VNGetInt(const Src: TPSVariantIFC): Longint;
begin
  Result := PSGetInt(Src.Dta, Src.aType);
end;

function VNGetAnsiString(const Src: TPSVariantIFC): tbtString;
begin
  Result := PSGetAnsiString(Src.Dta, Src.aType);
end;

{$IFNDEF PS_NOWIDESTRING}
function VNGetWideString(const Src: TPSVariantIFC): tbtWideString;
begin
  Result := PSGetWideString(Src.Dta, Src.aType);
end;

function VNGetUnicodeString(const Src: TPSVariantIFC): tbtunicodestring;
begin
  Result := PSGetUnicodeString(Src.Dta, Src.aType);
end;
{$ENDIF}

procedure VNSetUInt(const Src: TPSVariantIFC; const Val: Cardinal);
var
  Dummy: Boolean;
begin
  PSSetUInt(Src.Dta, Src.aType, Dummy, Val);
end;

{$IFNDEF PS_NOINT64}
procedure VNSetInt64(const Src: TPSVariantIFC; const Val: Int64);
var
  Dummy: Boolean;
begin
  PSSetInt64(Src.Dta, Src.aType, Dummy, Val);
end;
{$ENDIF}

procedure VNSetReal(const Src: TPSVariantIFC; const Val: Extended);
var
  Dummy: Boolean;
begin
  PSSetReal(Src.Dta, Src.aType, Dummy, Val);
end;

procedure VNSetCurrency(const Src: TPSVariantIFC; const Val: Currency);
var
  Dummy: Boolean;
begin
  PSSetCurrency(Src.Dta, Src.aType, Dummy, Val);
end;

procedure VNSetInt(const Src: TPSVariantIFC; const Val: Longint);
var
  Dummy: Boolean;
begin
  PSSetInt(Src.Dta, Src.aType, Dummy, Val);
end;

procedure VNSetAnsiString(const Src: TPSVariantIFC; const Val: tbtString);
var
  Dummy: Boolean;
begin
  PSSetAnsiString(Src.Dta, Src.aType, Dummy, Val);
end;

function VNGetString(const Src: TPSVariantIFC): String;
begin
  {$IFDEF DELPHI2009UP}
  Result := VNGetUnicodeString(Src);
  {$ELSE}
  Result := VNGetAnsiString(Src);
  {$ENDIF}
end;

procedure VNSetString(const Src: TPSVariantIFC; const Val: String);
begin
  {$IFDEF DELPHI2009UP}
  VNSetUnicodeString(Src, Val);
  {$ELSE}
  VNSetAnsiString(Src, Val);
  {$ENDIF}
end;

{$IFNDEF PS_NOWIDESTRING}
procedure VNSetWideString(const Src: TPSVariantIFC; const Val: tbtWideString);
var
  Dummy: Boolean;
begin
  PSSetWideString(Src.Dta, Src.aType, Dummy, Val);
end;

procedure VNSetUnicodeString(const Src: TPSVariantIFC; const Val: tbtunicodestring);
var
  Dummy: Boolean;
begin
  PSSetUnicodeString(Src.Dta, Src.aType, Dummy, Val);
end;

{$ENDIF}

function VGetUInt(const Src: PIFVariant): Cardinal;
begin
  Result := PSGetUInt(@PPSVariantData(src).Data, src.FType);
end;

{$IFNDEF PS_NOINT64}
function VGetInt64(const Src: PIFVariant): Int64;
begin
  Result := PSGetInt64(@PPSVariantData(src).Data, src.FType);
end;
{$ENDIF}

function VGetReal(const Src: PIFVariant): Extended;
begin
  Result := PSGetReal(@PPSVariantData(src).Data, src.FType);
end;

function VGetCurrency(const Src: PIFVariant): Currency;
begin
  Result := PSGetCurrency(@PPSVariantData(src).Data, src.FType);
end;

function VGetInt(const Src: PIFVariant): Longint;
begin
  Result := PSGetInt(@PPSVariantData(src).Data, src.FType);
end;

function VGetAnsiString(const Src: PIFVariant): tbtString;
begin
  Result := PSGetAnsiString(@PPSVariantData(src).Data, src.FType);
end;

{$IFNDEF PS_NOWIDESTRING}
function VGetWideString(const Src: PIFVariant): tbtWideString;
begin
  Result := PSGetWideString(@PPSVariantData(src).Data, src.FType);
end;

function VGetUnicodeString(const Src: PIFVariant): tbtunicodestring;
begin
  Result := PSGetUnicodeString(@PPSVariantData(src).Data, src.FType);
end;

{$ENDIF}


procedure VSetPointerTo(const Src: PIFVariant; Data: Pointer; aType: TPSTypeRec);
var
  temp: TPSVariantIFC;
begin
  if (Atype = nil) or (Data = nil) or (Src = nil) then raise Exception.Create(RPS_InvalidVariable);
  temp.Dta := @PPSVariantData(Src).Data;
  temp.aType := Src.FType;
  temp.VarParam := false;
  VNSetPointerTo(temp, Data, AType);
end;

procedure VSetUInt(const Src: PIFVariant; const Val: Cardinal);
var
  Dummy: Boolean;
begin
  PSSetUInt(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

{$IFNDEF PS_NOINT64}
procedure VSetInt64(const Src: PIFVariant; const Val: Int64);
var
  Dummy: Boolean;
begin
  PSSetInt64(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;
{$ENDIF}

procedure VSetReal(const Src: PIFVariant; const Val: Extended);
var
  Dummy: Boolean;
begin
  PSSetReal(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

procedure VSetCurrency(const Src: PIFVariant; const Val: Currency);
var
  Dummy: Boolean;
begin
  PSSetCurrency(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

procedure VSetInt(const Src: PIFVariant; const Val: Longint);
var
  Dummy: Boolean;
begin
  PSSetInt(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

procedure VSetAnsiString(const Src: PIFVariant; const Val: tbtString);
var
  Dummy: Boolean;
begin
  PSSetAnsiString(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

function VGetString(const Src: PIFVariant): String;
begin
  {$IFDEF DELPHI2009UP}
  Result := PSGetUnicodeString(@PPSVariantData(src).Data, src.FType);
  {$ELSE}
  Result := PSGetAnsiString(@PPSVariantData(src).Data, src.FType);
  {$ENDIF}
end;

procedure VSetString(const Src: PIFVariant; const Val: string);
var
  Dummy: Boolean;
begin
  {$IFDEF DELPHI2009UP}
  PSSetUnicodeString(@PPSVariantData(src).Data, src.FType, Dummy, Val);
  {$ELSE}
  PSSetAnsiString(@PPSVariantData(src).Data, src.FType, Dummy, Val);
  {$ENDIF}
end;


{$IFNDEF PS_NOWIDESTRING}
procedure VSetWideString(const Src: PIFVariant; const Val: tbtWideString);
var
  Dummy: Boolean;
begin
  PSSetWideString(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;

procedure VSetUnicodeString(const Src: PIFVariant; const Val: tbtunicodestring);
var
  Dummy: Boolean;
begin
  PSSetUnicodeString(@PPSVariantData(src).Data, src.FType, Dummy, Val);
end;


{$ENDIF}

{$IFNDEF PS_NOWIDESTRING}
function VarToWideStr(const Data: Variant): tbtunicodestring;
begin
  if not VarIsNull(Data) then
    Result := Data
  else
    Result := '';
end;
{$ENDIF}

function PSGetUInt(Src: Pointer; aType: TPSTypeRec): Cardinal;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtu8(src^);
    btS8: Result := tbts8(src^);
    btU16: Result := tbtu16(src^);
    btS16: Result := tbts16(src^);
    btU32: Result := tbtu32(src^);
    btS32: Result := tbts32(src^);
{$IFNDEF PS_NOINT64}    btS64: Result := tbts64(src^);
{$ENDIF}
    btChar: Result := Ord(tbtchar(Src^));
{$IFNDEF PS_NOWIDESTRING}    btWideChar: Result := Ord(tbtwidechar(Src^));{$ENDIF}
    btVariant:
      case VarType(Variant(Src^)) of
        varString:
          if Length(VarToStr(Variant(Src^))) = 1 then
            Result := Ord(VarToStr(Variant(Src^))[1])
          else
            raise Exception.Create(RPS_TypeMismatch);
{$IFNDEF PS_NOWIDESTRING}
        varOleStr:
          if Length(VarToWideStr(Variant(Src^))) = 1 then
            Result := Ord(VarToWideStr(Variant(Src^))[1])
          else
            raise Exception.Create(RPS_TypeMismatch);
{$ENDIF}
       else
        Result := Variant(src^);
       end;
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;

function PSGetObject(Src: Pointer; aType: TPSTypeRec): TObject;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btClass: Result := TObject(Src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;

procedure PSSetObject(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; Const val: TObject);
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btClass: TObject(Src^) := Val;
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;


{$IFNDEF PS_NOINT64}
function PSGetInt64(Src: Pointer; aType: TPSTypeRec): Int64;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtu8(src^);
    btS8: Result := tbts8(src^);
    btU16: Result := tbtu16(src^);
    btS16: Result := tbts16(src^);
    btU32: Result := tbtu32(src^);
    btS32: Result := tbts32(src^);
    btS64: Result := tbts64(src^);
    btChar: Result := Ord(tbtchar(Src^));
{$IFNDEF PS_NOWIDESTRING}
    btWideChar: Result := Ord(tbtwidechar(Src^));
{$ENDIF}
{$IFDEF DELPHI6UP}
    btVariant:   Result := Variant(src^);
{$ENDIF}
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;
{$ENDIF}

function PSGetReal(Src: Pointer; aType: TPSTypeRec): Extended;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtu8(src^);
    btS8: Result := tbts8(src^);
    btU16: Result := tbtu16(src^);
    btS16: Result := tbts16(src^);
    btU32: Result := tbtu32(src^);
    btS32: Result := tbts32(src^);
{$IFNDEF PS_NOINT64}    btS64: Result := tbts64(src^);{$ENDIF}
    btSingle: Result := tbtsingle(Src^);
    btDouble: Result := tbtdouble(Src^);
    btExtended: Result := tbtextended(Src^);
    btCurrency: Result := tbtcurrency(Src^);
    btVariant:  Result := Variant(src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;

function PSGetCurrency(Src: Pointer; aType: TPSTypeRec): Currency;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtu8(src^);
    btS8: Result := tbts8(src^);
    btU16: Result := tbtu16(src^);
    btS16: Result := tbts16(src^);
    btU32: Result := tbtu32(src^);
    btS32: Result := tbts32(src^);
{$IFNDEF PS_NOINT64} btS64: Result := tbts64(src^);{$ENDIF}
    btSingle: Result := tbtsingle(Src^);
    btDouble: Result := tbtdouble(Src^);
    btExtended: Result := tbtextended(Src^);
    btCurrency: Result := tbtcurrency(Src^);
    btVariant:   Result := Variant(src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;


function PSGetInt(Src: Pointer; aType: TPSTypeRec): Longint;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtu8(src^);
    btS8: Result := tbts8(src^);
    btU16: Result := tbtu16(src^);
    btS16: Result := tbts16(src^);
    btU32: Result := tbtu32(src^);
    btS32: Result := tbts32(src^);
{$IFNDEF PS_NOINT64} btS64: Result := tbts64(src^);{$ENDIF}
    btChar: Result := Ord(tbtchar(Src^));
{$IFNDEF PS_NOWIDESTRING}    btWideChar: Result := Ord(tbtwidechar(Src^));{$ENDIF}
    btVariant: Result := Variant(src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;


function PSGetAnsiString(Src: Pointer; aType: TPSTypeRec): tbtString;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := tbtchar(tbtu8(src^));
    btChar: Result := tbtchar(Src^);
    btPchar: Result := pansichar(src^);
{$IFNDEF PS_NOWIDESTRING}    btWideChar: Result := tbtString(tbtwidechar(Src^));{$ENDIF}
    btString: Result := tbtstring(src^);
{$IFNDEF PS_NOWIDESTRING}
    btUnicodeString: result := tbtString(tbtUnicodestring(src^));
    btWideString: Result := tbtString(tbtwidestring(src^));{$ENDIF}
    btVariant:  Result := tbtString(Variant(src^));
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;
{$IFNDEF PS_NOWIDESTRING}
function PSGetWideString(Src: Pointer; aType: TPSTypeRec): tbtWideString;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := chr(tbtu8(src^));
    btU16: Result := widechar(src^);
    btChar: Result := tbtwidestring(tbtchar(Src^));
    btPchar: Result := tbtwidestring(pansichar(src^));
    btWideChar: Result := tbtwidechar(Src^);
    btString: Result := tbtwidestring(tbtstring(src^));
    btWideString: Result := tbtwidestring(src^);
    btVariant:   Result := Variant(src^);
    btUnicodeString: result := tbtUnicodeString(src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;

function PSGetUnicodeString(Src: Pointer; aType: TPSTypeRec): tbtunicodestring;
begin
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then raise Exception.Create(RPS_TypeMismatch);
  end;
  case aType.BaseType of
    btU8: Result := chr(tbtu8(src^));
    btU16: Result := widechar(src^);
    btChar: Result := tbtwidestring(tbtchar(Src^));
    btPchar: Result := tbtwidestring(pansichar(src^));
    btWideChar: Result := tbtwidechar(Src^);
    btString: Result := tbtwidestring(tbtstring(src^));
    btWideString: Result := tbtwidestring(src^);
    btVariant:   Result := Variant(src^);
    btUnicodeString: result := tbtUnicodeString(src^);
    else raise Exception.Create(RPS_TypeMismatch);
  end;
end;
{$ENDIF}

procedure PSSetUInt(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Cardinal);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btU8: tbtu8(src^) := Val;
    btS8: tbts8(src^) := Val;
    btU16: tbtu16(src^) := Val;
    btS16: tbts16(src^) := Val;
    btProcPtr:
      begin
        tbtu32(src^) := Val;
        Pointer(Pointer(IPointer(Src)+PointerSize)^) := nil;
        Pointer(Pointer(IPointer(Src)+PointerSize2)^) := nil;
      end;
    btU32: tbtu32(src^) := Val;
    btS32: tbts32(src^) := Val;
{$IFNDEF PS_NOINT64}    btS64: tbts64(src^) := Val;{$ENDIF}
    btChar: tbtchar(Src^) := tbtChar(Val);
{$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtwidechar(Src^) := tbtwidechar(Val);{$ENDIF}
    btSingle: tbtSingle(src^) := Val;
    btDouble: tbtDouble(src^) := Val;
    btCurrency: tbtCurrency(src^) := Val;
    btExtended: tbtExtended(src^) := Val;
    btVariant:
      begin
        try
          Variant(src^) := {$IFDEF DELPHI6UP}val{$ELSE}tbts32(val){$ENDIF};
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;

{$IFNDEF PS_NOINT64}
procedure PSSetInt64(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Int64);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btU8: tbtu8(src^) := Val;
    btS8: tbts8(src^) := Val;
    btU16: tbtu16(src^) := Val;
    btS16: tbts16(src^) := Val;
    btU32: tbtu32(src^) := Val;
    btS32: tbts32(src^) := Val;
    btS64: tbts64(src^) := Val;
    btChar: tbtchar(Src^) := tbtChar(Val);
{$IFNDEF PS_NOWIDESTRING}
    btWideChar: tbtwidechar(Src^) := tbtwidechar(Val);
{$ENDIF}
    btSingle: tbtSingle(src^) := Val;
    btDouble: tbtDouble(src^) := Val;
    btCurrency: tbtCurrency(src^) := Val;
    btExtended: tbtExtended(src^) := Val;
{$IFDEF DELPHI6UP}
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
{$ENDIF}
    else ok := false;
  end;
end;
{$ENDIF}

procedure PSSetReal(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Extended);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btSingle: tbtSingle(src^) := Val;
    btDouble: tbtDouble(src^) := Val;
    btCurrency: tbtCurrency(src^) := Val;
    btExtended: tbtExtended(src^) := Val;
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;

procedure PSSetCurrency(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Currency);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btSingle: tbtSingle(src^) := Val;
    btDouble: tbtDouble(src^) := Val;
    btCurrency: tbtCurrency(src^) := Val;
    btExtended: tbtExtended(src^) := Val;
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;

procedure PSSetInt(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: Longint);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btU8: tbtu8(src^) := Val;
    btS8: tbts8(src^) := Val;
    btU16: tbtu16(src^) := Val;
    btS16: tbts16(src^) := Val;
    btProcPtr:
      begin
        tbtu32(src^) := Val;
        Pointer(Pointer(IPointer(Src)+PointerSize)^) := nil;
        Pointer(Pointer(IPointer(Src)+PointerSize2)^) := nil;
      end;
    btU32: tbtu32(src^) := Val;
    btS32: tbts32(src^) := Val;
{$IFNDEF PS_NOINT64}    btS64: tbts64(src^) := Val;{$ENDIF}
    btChar: tbtchar(Src^) := tbtChar(Val);
{$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtwidechar(Src^) := tbtwidechar(Val);{$ENDIF}
    btSingle: tbtSingle(src^) := Val;
    btDouble: tbtDouble(src^) := Val;
    btCurrency: tbtCurrency(src^) := Val;
    btExtended: tbtExtended(src^) := Val;
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;

procedure PSSetAnsiString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtString);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btString: tbtstring(src^) := val;
{$IFNDEF PS_NOWIDESTRING}
    btUnicodeString: tbtunicodestring(src^) := tbtUnicodeString(AnsiString(val));
    btWideString: tbtwidestring(src^) := tbtwidestring(AnsiString(val));{$ENDIF}
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;
{$IFNDEF PS_NOWIDESTRING}
procedure PSSetWideString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtWideString);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btString: tbtstring(src^) := tbtString(val);
    btWideString: tbtwidestring(src^) := val;
    btUnicodeString: tbtunicodestring(src^) := val;
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;
procedure PSSetUnicodeString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: tbtunicodestring);
begin
  if (Src = nil) or (aType = nil) then begin Ok := false; exit; end;
  if aType.BaseType = btPointer then
  begin
    atype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
    Src := Pointer(Src^);
    if (src = nil) or (aType = nil) then begin Ok := false; exit; end;
  end;
  case aType.BaseType of
    btString: tbtstring(src^) := tbtString(val);
    btWideString: tbtwidestring(src^) := val;
    btUnicodeString: tbtunicodestring(src^) := val;
    btVariant:
      begin
        try
          Variant(src^) := Val;
        except
          Ok := false;
        end;
      end;
    else ok := false;
  end;
end;
{$ENDIF}

function PSGetString(Src: Pointer; aType: TPSTypeRec): string;
begin
  {$IFDEF DELPHI2009UP}
  result := PSGetUnicodeString(Src, aType);
  {$ELSE}
  result := PSGetAnsiString(Src, aType);
  {$ENDIF}
end;

procedure PSSetString(Src: Pointer; aType: TPSTypeRec; var Ok: Boolean; const Val: String);
begin
  {$IFDEF DELPHI2009UP}
  PSSetUnicodeString(Src, aType, Ok, Val);
  {$ELSE}
  PSSetAnsiString(Src, aType, Ok, Val);
  {$ENDIF}
end;


function CopyArrayContents(dest, src: Pointer; Len: Longint; aType: TPSTypeRec): Boolean; forward;

function CopyRecordContents(dest, src: Pointer; aType: TPSTypeRec_Record): Boolean;
var
  o, i: Longint;
begin
  for i := 0 to aType.FieldTypes.Count -1 do
  begin
    o := Longint(atype.RealFieldOffsets[i]);
    CopyArrayContents(Pointer(IPointer(Dest)+Cardinal(o)), Pointer(IPointer(Src)+Cardinal(o)), 1, aType.FieldTypes[i]);
  end;
  Result := true;
end;

function CreateArrayFromVariant(Exec: TPSExec; dest: Pointer; src: Variant; DestType: TPSTypeRec): Boolean;
var
  i: Integer;
  r: Pointer;
  lVarType: TPSTypeRec;
  v: variant;
begin
  lVarType := Exec.FindType2(btVariant);
  if lVarType = nil then begin result := false; exit; end;
  PSDynArraySetLength(Pointer(dest^), desttype, VarArrayHighBound(src, 1) - VarArrayLowBound(src, 1) + 1);
  r := Pointer(Dest^);
  DestType := TPSTypeRec_Array(DestType).ArrayType;
  for i := 0 to VarArrayHighBound(src, 1) - VarArrayLowBound(src, 1) do begin
    v := src[i + VarArrayLowBound(src, 1)];
    if not Exec.SetVariantValue(r, @v, desttype, lVarType) then begin result := false; exit; end;
    r := Pointer(IPointer(r) + Longint(DestType.RealSize));
  end;
  Result := true;
end;

function CopyArrayContents(dest, src: Pointer; Len: Longint; aType: TPSTypeRec): Boolean;
var
  elsize: Cardinal;
  i: Longint;
begin
  try
    case aType.BaseType of
      btU8, btS8, btChar:
        for i := 0 to Len -1 do
        begin
          tbtU8(Dest^) := tbtU8(Src^);
          Dest := Pointer(IPointer(Dest) + 1);
          Src := Pointer(IPointer(Src) + 1);
        end;
      btU16, btS16{$IFNDEF PS_NOWIDESTRING}, btWideChar{$ENDIF}:
        for i := 0 to Len -1 do
        begin
          tbtU16(Dest^) := tbtU16(Src^);
          Dest := Pointer(IPointer(Dest) + 2);
          Src := Pointer(IPointer(Src) + 2);
        end;
      btProcPtr:
        for i := 0 to Len -1 do
        begin
          tbtU32(Dest^) := tbtU32(Src^);
          Dest := Pointer(IPointer(Dest) + 4);
          Src := Pointer(IPointer(Src) + 4);
          Pointer(Dest^) := Pointer(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
          Pointer(Dest^) := Pointer(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
        end;
      btClass, btpchar:
        for i := 0 to Len -1 do
        begin
          Pointer(Dest^) := Pointer(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
        end;
      btU32, btS32, btSingle:
        for i := 0 to Len -1 do
        begin
          tbtU32(Dest^) := tbtU32(Src^);
          Dest := Pointer(IPointer(Dest) + 4);
          Src := Pointer(IPointer(Src) + 4);
        end;
      btDouble:
        for i := 0 to Len -1 do
        begin
          tbtDouble(Dest^) := tbtDouble(Src^);
          Dest := Pointer(IPointer(Dest) + 8);
          Src := Pointer(IPointer(Src) + 8);
        end;
      {$IFNDEF PS_NOINT64}bts64:
        for i := 0 to Len -1 do
        begin
          tbts64(Dest^) := tbts64(Src^);
          Dest := Pointer(IPointer(Dest) + 8);
          Src := Pointer(IPointer(Src) + 8);
        end;{$ENDIF}
      btExtended:
        for i := 0 to Len -1 do
        begin
          tbtExtended(Dest^) := tbtExtended(Src^);
          Dest := Pointer(IPointer(Dest) + SizeOf(Extended));
          Src := Pointer(IPointer(Src) + SizeOf(Extended));
        end;
      btCurrency:
        for i := 0 to Len -1 do
        begin
          tbtCurrency(Dest^) := tbtCurrency(Src^);
          Dest := Pointer(IPointer(Dest) + SizeOf(Currency));
          Src := Pointer(IPointer(Src) + SizeOf(Currency));
        end;
      btVariant:
        for i := 0 to Len -1 do
        begin
          variant(Dest^) := variant(Src^);
          Dest := Pointer(IPointer(Dest) + Sizeof(Variant));
          Src := Pointer(IPointer(Src) + Sizeof(Variant));
        end;
      btString:
        for i := 0 to Len -1 do
        begin
          tbtString(Dest^) := tbtString(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
        end;
      {$IFNDEF PS_NOWIDESTRING}
      btUnicodeString:
        for i := 0 to Len -1 do
        begin
          tbtunicodestring(Dest^) := tbtunicodestring(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
        end;
      btWideString:
        for i := 0 to Len -1 do
        begin
          tbtWideString(Dest^) := tbtWideString(Src^);
          Dest := Pointer(IPointer(Dest) + PointerSize);
          Src := Pointer(IPointer(Src) + PointerSize);
        end;
    {$ENDIF}
      btStaticArray:
        begin
          elSize := aType.RealSize;
          for i := 0 to Len -1 do
          begin
            if not CopyArrayContents(Dest, Src, TPSTypeRec_StaticArray(aType).Size, TPSTypeRec_StaticArray(aType).ArrayType) then
            begin
              result := false;
              exit;
            end;
            Dest := Pointer(IPointer(Dest) + elsize);
            Src := Pointer(IPointer(Src) + elsize);
          end;
        end;
      btArray:
        begin
          for i := 0 to Len -1 do
          begin
            Pointer(Dest^) := Pointer(Src^);
            if Pointer(Dest^) <> nil then
            begin
              Inc(Longint(Pointer(IPointer(Dest^)-(2*PointerSize))^)); // RefCount
            end;
            Dest := Pointer(IPointer(Dest) + PointerSize);
            Src := Pointer(IPointer(Src) + PointerSize);
          end;
        end;
      btRecord:
        begin
          elSize := aType.RealSize;
          for i := 0 to Len -1 do
          begin
            if not CopyRecordContents(Dest, Src, TPSTypeRec_Record(aType)) then
            begin
              result := false;
              exit;
            end;
            Dest := Pointer(IPointer(Dest) + elsize);
            Src := Pointer(IPointer(Src) + elsize);
          end;
        end;
      btSet:
        begin
          elSize := aType.RealSize;
          for i := 0 to Len -1 do
          begin
            Move(Src^, Dest^, elSize);
            Dest := Pointer(IPointer(Dest) + elsize);
            Src := Pointer(IPointer(Src) + elsize);
          end;
        end;
{$IFNDEF PS_NOINTERFACES}
      btInterface:
        begin
          for i := 0 to Len -1 do
          begin
            {$IFNDEF DELPHI3UP}
            if IUnknown(Dest^) <> nil then
            begin
              IUnknown(Dest^).Release;
              IUnknown(Dest^) := nil;
            end;
            {$ENDIF}
            IUnknown(Dest^) := IUnknown(Src^);
            {$IFNDEF DELPHI3UP}
            if IUnknown(Dest^) <> nil then
              IUnknown(Dest^).AddRef;
            {$ENDIF}
            Dest := Pointer(IPointer(Dest) + PointerSize);
            Src := Pointer(IPointer(Src) + PointerSize);
          end;
        end;
{$ENDIF}
      btPointer:
        begin
          if (Pointer(Pointer(IPointer(Dest)+PointerSize2)^) = nil) and (Pointer(Pointer(IPointer(Src)+PointerSize2)^) = nil) then
          begin
            for i := 0 to Len -1 do
            begin
              Pointer(Dest^) := Pointer(Src^);
              Dest := Pointer(IPointer(Dest) + PointerSize);
              Src := Pointer(IPointer(Src) + PointerSize);
              Pointer(Dest^) := Pointer(Src^);
              Dest := Pointer(IPointer(Dest) + PointerSize);
              Src := Pointer(IPointer(Src) + PointerSize);
              LongBool(Dest^) := false;
              Dest := Pointer(IPointer(Dest) + sizeof(LongBool));
              Src := Pointer(IPointer(Src) + sizeof(LongBool));
            end;
          end else begin
            for i := 0 to Len -1 do
            begin
              if Pointer(Pointer(IPointer(Dest)+PointerSize2)^) <> nil then
                DestroyHeapVariant2(Pointer(Dest^), Pointer(Pointer(IPointer(Dest)+PointerSize)^));
              if Pointer(Src^) <> nil then
              begin
                if not LongBool(Pointer(IPointer(Src) + PointerSize2)^) then
                begin
                  Pointer(Dest^) := Pointer(Src^);
                  Pointer(Pointer(IPointer(Dest) + PointerSize)^) := Pointer(Pointer(IPointer(Src) + PointerSize)^);
                  Pointer(Pointer(IPointer(Dest) + PointerSize2)^) := Pointer(Pointer(IPointer(Src) + PointerSize2)^);
                end else
                begin
                  Pointer(Dest^) := CreateHeapVariant2(Pointer(Pointer(IPointer(Src) + PointerSize)^));
                  Pointer(Pointer(IPointer(Dest) + PointerSize)^) := Pointer(Pointer(IPointer(Src) + PointerSize)^);
                  LongBool(Pointer(IPointer(Dest) + PointerSize2)^) := true;
                  if not CopyArrayContents(Pointer(Dest^), Pointer(Src^), 1, Pointer(Pointer(IPointer(Dest) + PointerSize)^)) then
                  begin
                    Result := false;
                    exit;
                  end;
                end;
              end else
              begin
                Pointer(Dest^) := nil;
                Pointer(Pointer(IPointer(Dest) + PointerSize)^) := nil;
                Pointer(Pointer(IPointer(Dest) + PointerSize2)^) := nil;
              end;
              Dest := Pointer(IPointer(Dest) + PointerSize*2+sizeof(LongBool));
              Src := Pointer(IPointer(Src) + PointerSize*2+sizeof(LongBool));
            end;
          end;
        end;
//      btResourcePointer = 15;
//      btVariant = 16;
    else
      Result := False;
      exit;
    end;
  except
    Result := False;
    exit;
  end;
  Result := true;
end;

function  GetPSArrayLength(Arr: PIFVariant): Longint;
begin
  result := PSDynArrayGetLength(PPSVariantDynamicArray(arr).Data, arr.FType);
end;

procedure SetPSArrayLength(Arr: PIFVariant; NewLength: Longint);
begin
  PSDynArraySetLength(PPSVariantDynamicArray(arr).Data, arr.FType, NewLength);
end;


function PSDynArrayGetLength(arr: Pointer; aType: TPSTypeRec): Longint;
begin
  if aType.BaseType <> btArray then raise Exception.Create(RPS_InvalidArray);
  if arr = nil then Result := 0 else Result := Longint(Pointer(IPointer(arr)-PointerSize)^) {$IFDEF FPC} +1 {$ENDIF};
end;

procedure PSDynArraySetLength(var arr: Pointer; aType: TPSTypeRec; NewLength: Longint);
var
  elSize, i, OldLen: Longint;
  p: Pointer;
begin
  if aType.BaseType <> btArray then raise Exception.Create(RPS_InvalidArray);
  OldLen := PSDynArrayGetLength(arr, aType);
  elSize := TPSTypeRec_Array(aType).ArrayType.RealSize;
  if (OldLen = 0) and (NewLength = 0) then exit; // already are both 0
  if (OldLen <> 0) and (Longint(Pointer(IPointer(Arr)-PointerSize2)^) = 1) then // unique copy of this dynamic array
  begin
    for i := NewLength to OldLen -1 do
    begin
      if TPSTypeRec_Array(aType).ArrayType.BaseType in NeedFinalization then
        FinalizeVariant(Pointer(IPointer(arr) + Cardinal(elsize * i)), TPSTypeRec_Array(aType).ArrayType);
    end;
    arr := Pointer(IPointer(Arr)-PointerSize2);
    if NewLength <= 0 then
    begin
      FreeMem(arr, NewLength * elsize + PointerSize2);
      arr := nil;
      exit;
    end;
    ReallocMem(arr, NewLength * elSize + PointerSize2);
    arr := Pointer(IPointer(Arr)+PointerSize);
    Longint(Arr^) := NewLength {$IFDEF FPC} -1 {$ENDIF};
    arr := Pointer(IPointer(Arr)+PointerSize);
    for i := OldLen to NewLength -1 do
    begin
      InitializeVariant(Pointer(IPointer(arr) + Cardinal(elsize * i)), TPSTypeRec_Array(aType).ArrayType);
    end;
  end else
  begin
    if NewLength = 0 then
    begin
      if Longint(Pointer(IPointer(Arr)-PointerSize2)^) = 1 then
        FreeMem(Pointer(IPointer(Arr)-PointerSize2), OldLen * elSize + PointerSize2)
      else if Longint(Pointer(IPointer(Arr)-PointerSize2)^) > 0 then
        Dec(Longint(Pointer(IPointer(Arr)-PointerSize2)^));
      arr := nil;
      exit;
    end;
    GetMem(p, NewLength * elSize + PointerSize2);
    Longint(p^) := 1;
    p:= Pointer(IPointer(p)+PointerSize);
    Longint(p^) := NewLength {$IFDEF FPC} -1 {$ENDIF};
    p := Pointer(IPointer(p)+PointerSize);
    if OldLen <> 0 then
    begin
      if OldLen > NewLength then
        CopyArrayContents(p, arr, NewLength, TPSTypeRec_Array(aType).ArrayType)
      else
        CopyArrayContents(p, arr, OldLen, TPSTypeRec_Array(aType).ArrayType);
      FinalizeVariant(@arr, aType);
    end;
    arr := p;
    for i := OldLen to NewLength -1 do
    begin
      InitializeVariant(Pointer(IPointer(arr) + Cardinal(elsize * i)), TPSTypeRec_Array(aType).ArrayType);
    end;
  end;
end;



{$IFDEF FPC}
function OleErrorMessage(ErrorCode: HResult): tbtString;
begin
  Result := SysErrorMessage(ErrorCode);
  if Result = '' then
    Result := Format(RPS_OLEError, [ErrorCode]);
end;

procedure OleError(ErrorCode: HResult);
begin
  raise Exception.Create(OleErrorMessage(ErrorCode));
end;

procedure OleCheck(Result: HResult);
begin
  if Result < 0 then OleError(Result);
end;
{$ENDIF}


{$IFNDEF DELPHI3UP}
function OleErrorMessage(ErrorCode: HResult): tbtString;
begin
  Result := SysErrorMessage(ErrorCode);
  if Result = '' then
    Result := Format(RPS_OLEError, [ErrorCode]);
end;

procedure OleError(ErrorCode: HResult);
begin
  raise Exception.Create(OleErrorMessage(ErrorCode));
end;

procedure OleCheck(Result: HResult);
begin
  if Result < 0 then OleError(Result);
end;

procedure AssignInterface(var Dest: IUnknown; const Src: IUnknown);
var
  OldDest: IUnknown;
begin
  { Like Delphi 3+'s _IntfCopy, reference source before releasing old dest.
    so that self assignment (I := I) works right }
  OldDest := Dest;
  Dest := Src;
  if Src <> nil then
    Src.AddRef;
  if OldDest <> nil then
    OldDest.Release;
end;

procedure AssignVariantFromIDispatch(var Dest: Variant; const Src: IDispatch);
begin
  VarClear(Dest);
  TVarData(Dest).VDispatch := Src;
  TVarData(Dest).VType := varDispatch;
  if Src <> nil then
    Src.AddRef;
end;

procedure AssignIDispatchFromVariant(var Dest: IDispatch; const Src: Variant);
const
  RPS_InvalidVariantRef = 'Invalid variant ref';
var
  NewDest: IDispatch;
begin
  case TVarData(Src).VType of
    varEmpty: NewDest := nil;
    varDispatch: NewDest := TVarData(Src).VDispatch;
    varDispatch or varByRef: NewDest := Pointer(TVarData(Src).VPointer^);
  else
    raise Exception.Create(RPS_InvalidVariantRef);
  end;
  AssignInterface(IUnknown(Dest), NewDest);
end;
{$ENDIF}

function TPSExec.SetVariantValue(dest, Src: Pointer; desttype, srctype: TPSTypeRec): Boolean;
var
  Tmp: TObject;
  tt: TPSVariantPointer;
begin
  Result := True;
  try
    case desttype.BaseType of
      btSet:
        begin
          if desttype = srctype then
            Move(Src^, Dest^, TPSTypeRec_Set(desttype).aByteSize)
          else
            Result := False;
        end;
      btU8: tbtu8(Dest^) := PSGetUInt(Src, srctype);
      btS8: tbts8(Dest^) := PSGetInt(Src, srctype);
      btU16: tbtu16(Dest^) := PSGetUInt(Src, srctype);
      btS16: tbts16(Dest^) := PSGetInt(Src, srctype);
      btProcPtr:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btu32:
              begin
                Pointer(Dest^) := Pointer(Src^);
              end;
            btProcPtr:
              begin
                Pointer(Dest^) := Pointer(Src^);
                Pointer(Pointer(IPointer(Dest)+PointerSize)^) := Pointer(Pointer(IPointer(Src)+PointerSize)^);
                Pointer(Pointer(IPointer(Dest)+PointerSize2)^) := Pointer(Pointer(IPointer(Src)+PointerSize2)^);
              end;
            else raise Exception.Create(RPS_TypeMismatch);
          end;
        end;
      btU32:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btU8: tbtu32(Dest^) := tbtu8(src^);
            btS8: tbtu32(Dest^) := tbts8(src^);
            btU16: tbtu32(Dest^) := tbtu16(src^);
            btS16: tbtu32(Dest^) := tbts16(src^);
            btU32: tbtu32(Dest^) := tbtu32(src^);
            btS32: tbtu32(Dest^) := tbts32(src^);
        {$IFNDEF PS_NOINT64} btS64: tbtu32(Dest^) := tbts64(src^);{$ENDIF}
            btChar: tbtu32(Dest^) := Ord(tbtchar(Src^));
        {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtu32(Dest^) := Ord(tbtwidechar(Src^));{$ENDIF}
            btVariant: tbtu32(Dest^) := Variant(src^);
            else raise Exception.Create(RPS_TypeMismatch);
          end;
        end;
      btS32:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btU8: tbts32(Dest^) := tbtu8(src^);
            btS8: tbts32(Dest^) := tbts8(src^);
            btU16: tbts32(Dest^) := tbtu16(src^);
            btS16: tbts32(Dest^) := tbts16(src^);
            btU32: tbts32(Dest^) := tbtu32(src^);
            btS32: tbts32(Dest^) := tbts32(src^);
        {$IFNDEF PS_NOINT64} btS64: tbts32(Dest^) := tbts64(src^);{$ENDIF}
            btChar: tbts32(Dest^) := Ord(tbtchar(Src^));
        {$IFNDEF PS_NOWIDESTRING}  btWideChar: tbts32(Dest^) := Ord(tbtwidechar(Src^));{$ENDIF}
            btVariant: tbts32(Dest^) := Variant(src^);
            // nx change start - allow assignment of class
            btClass: tbtu32(Dest^) := tbtu32(src^);
            // nx change start
            else raise Exception.Create(RPS_TypeMismatch);
          end;
        end;
      {$IFNDEF PS_NOINT64}
      btS64: tbts64(Dest^) := PSGetInt64(Src, srctype);
      {$ENDIF}
      btSingle:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btU8: tbtsingle(Dest^) := tbtu8(src^);
            btS8: tbtsingle(Dest^) := tbts8(src^);
            btU16: tbtsingle(Dest^) := tbtu16(src^);
            btS16: tbtsingle(Dest^) := tbts16(src^);
            btU32: tbtsingle(Dest^) := tbtu32(src^);
            btS32: tbtsingle(Dest^) := tbts32(src^);
        {$IFNDEF PS_NOINT64}    btS64: tbtsingle(Dest^) := tbts64(src^);{$ENDIF}
            btSingle: tbtsingle(Dest^) := tbtsingle(Src^);
            btDouble: tbtsingle(Dest^) := tbtdouble(Src^);
            btExtended: tbtsingle(Dest^) := tbtextended(Src^);
            btCurrency: tbtsingle(Dest^) := tbtcurrency(Src^);
            btVariant:  tbtsingle(Dest^) := Variant(src^);
            else raise Exception.Create(RPS_TypeMismatch);
          end;
        end;
      btDouble:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btU8: tbtdouble(Dest^) := tbtu8(src^);
            btS8: tbtdouble(Dest^) := tbts8(src^);
            btU16: tbtdouble(Dest^) := tbtu16(src^);
            btS16: tbtdouble(Dest^) := tbts16(src^);
            btU32: tbtdouble(Dest^) := tbtu32(src^);
            btS32: tbtdouble(Dest^) := tbts32(src^);
        {$IFNDEF PS_NOINT64}    btS64: tbtdouble(Dest^) := tbts64(src^);{$ENDIF}
            btSingle: tbtdouble(Dest^) := tbtsingle(Src^);
            btDouble: tbtdouble(Dest^) := tbtdouble(Src^);
            btExtended: tbtdouble(Dest^) := tbtextended(Src^);
            btCurrency: tbtdouble(Dest^) := tbtcurrency(Src^);
            btVariant:  tbtdouble(Dest^) := Variant(src^);
            else raise Exception.Create(RPS_TypeMismatch);
          end;

        end;
      btExtended:
        begin
          if srctype.BaseType = btPointer then
          begin
            srctype := PIFTypeRec(Pointer(IPointer(Src)+PointerSize)^);
            Src := Pointer(Src^);
            if (src = nil) or (srctype = nil) then raise Exception.Create(RPS_TypeMismatch);
          end;
          case srctype.BaseType of
            btU8: tbtextended(Dest^) := tbtu8(src^);
            btS8: tbtextended(Dest^) := tbts8(src^);
            btU16: tbtextended(Dest^) := tbtu16(src^);
            btS16: tbtextended(Dest^) := tbts16(src^);
            btU32: tbtextended(Dest^) := tbtu32(src^);
            btS32: tbtextended(Dest^) := tbts32(src^);
        {$IFNDEF PS_NOINT64}    btS64: tbtextended(Dest^) := tbts64(src^);{$ENDIF}
            btSingle: tbtextended(Dest^) := tbtsingle(Src^);
            btDouble: tbtextended(Dest^) := tbtdouble(Src^);
            btExtended: tbtextended(Dest^) := tbtextended(Src^);
            btCurrency: tbtextended(Dest^) := tbtcurrency(Src^);
            btVariant:  tbtextended(Dest^) := Variant(src^);
            else raise Exception.Create(RPS_TypeMismatch);
          end;
        end;
      btCurrency: tbtcurrency(Dest^) := PSGetCurrency(Src, srctype);
      btPChar: pansichar(dest^) := pansichar(PSGetAnsiString(Src, srctype));
      btString:
        tbtstring(dest^) := PSGetAnsiString(Src, srctype);
      btChar: tbtchar(dest^) := tbtchar(PSGetUInt(Src, srctype));
      {$IFNDEF PS_NOWIDESTRING}
      btWideString: tbtwidestring(dest^) := PSGetWideString(Src, srctype);
      btUnicodeString: tbtUnicodeString(dest^) := PSGetUnicodeString(Src, srctype);
      btWideChar: tbtwidechar(dest^) := widechar(PSGetUInt(Src, srctype));
      {$ENDIF}
      btStaticArray:
        begin
          if desttype <> srctype then
            Result := False
          else
            CopyArrayContents(dest, Src, TPSTypeRec_StaticArray(desttype).Size, TPSTypeRec_StaticArray(desttype).ArrayType);
        end;
      btArray:
        begin
          if (srctype.BaseType = btStaticArray) and (TPSTypeRec_Array(desttype).ArrayType = TPSTypeRec_Array(srctype).ArrayType) then
          begin
            PSDynArraySetLength(Pointer(Dest^), desttype, TPSTypeRec_StaticArray(srctype).Size);
            CopyArrayContents(Pointer(dest^), Src, TPSTypeRec_StaticArray(srctype).Size, TPSTypeRec_StaticArray(srctype).ArrayType);
          end else if (srctype.BaseType = btvariant) and VarIsArray(Variant(src^)) then
            Result := CreateArrayFromVariant(Self, dest, Variant(src^), desttype)
          else if (desttype <> srctype) and not ((desttype.BaseType = btarray) and (srctype.BaseType = btArray)
            and (TPSTypeRec_Array(desttype).ArrayType = TPSTypeRec_Array(srctype).ArrayType)) then
            Result := False
          else
            CopyArrayContents(dest, src, 1, desttype);
        end;
      btRecord:
        begin
          if desttype <> srctype then
            Result := False
          else
            CopyArrayContents(dest, Src, 1, desttype);
        end;
      btVariant:
        begin
{$IFNDEF PS_NOINTERFACES}
          if srctype.ExportName = 'IDISPATCH' then
          begin
            {$IFDEF DELPHI3UP}
            Variant(Dest^) := IDispatch(Src^);
            {$ELSE}
            AssignVariantFromIDispatch(Variant(Dest^), IDispatch(Src^));
            {$ENDIF}
          end else
{$ENDIF}
          if srctype.BaseType = btVariant then
            variant(Dest^) := variant(src^)
          else
          begin
            tt.VI.FType := FindType2(btPointer);
            tt.DestType := srctype;
            tt.DataDest := src;
            tt.FreeIt := False;
            Result := PIFVariantToVariant(@tt, variant(dest^));
          end;
        end;
      btClass:
        begin
          if srctype.BaseType = btClass then
            TObject(Dest^) := TObject(Src^)
          else
          // nx change start
          if (srctype.BaseType in [btS32, btU32]) then
            TbtU32(Dest^) := TbtU32(Src^)
          else
          // nx change end
            Result := False;
        end;
{$IFNDEF PS_NOINTERFACES}
      btInterface:
        begin
          if Srctype.BaseType = btVariant then
          begin
            if desttype.ExportName = 'IDISPATCH' then
            begin
              {$IFDEF Delphi3UP}
              IDispatch(Dest^) := IDispatch(Variant(Src^));
              {$ELSE}
              AssignIDispatchFromVariant(IDispatch(Dest^), Variant(Src^));
              {$ENDIF}
            end else
              Result := False;
{$IFDEF Delphi3UP}
          end else
          if srctype.BaseType = btClass then
          begin
            if (TObject(Src^) = nil) or not TObject(Src^).GetInterface(TPSTypeRec_Interface(desttype).Guid, IUnknown(Dest^)) then
            begin
              Result := false;
              Cmd_Err(erInterfaceNotSupported);
              exit;
            end;
{$ENDIF}
          end else if srctype.BaseType = btInterface then
          begin
            {$IFNDEF Delphi3UP}
            if IUnknown(Dest^) <> nil then
            begin
              IUnknown(Dest^).Release;
              IUnknown(Dest^) := nil;
            end;
            {$ENDIF}
            IUnknown(Dest^) := IUnknown(Src^);
            {$IFNDEF Delphi3UP}
            if IUnknown(Dest^) <> nil then
              IUnknown(Dest^).AddRef;
            {$ENDIF}
          end else
            Result := False;
        end;
{$ENDIF}
    else begin
        Result := False;
      end;
    end;
    if Result = False then
      CMD_Err(ErTypeMismatch);
  except
    {$IFDEF DELPHI6UP}
    Tmp := AcquireExceptionObject;
    {$ELSE}
    if RaiseList <> nil then
    begin
      Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
      PRaiseFrame(RaiseList)^.ExceptObject := nil;
    end else
      Tmp := nil;
    {$ENDIF}
    if Tmp <> nil then
    begin
      if Tmp is EPSException then
      begin
        Result := False;
        ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
        exit;
      end else
      if Tmp is EDivByZero then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EZeroDivide then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EMathError then
      begin
        Result := False;
        CMD_Err3(erMathError, '', Tmp);
        Exit;
      end;
    end;
    if (tmp <> nil) and (Tmp is Exception) then
      CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp)
    else
      CMD_Err3(erException, '', Tmp);
    Result := False;
  end;
end;

function SpecImport(Sender: TPSExec; p: TPSExternalProcRec; Tag: Pointer): Boolean; forward;


function Class_IS(Self: TPSExec; Obj: TObject; var2type: TPSTypeRec): Boolean;
var
  R: TPSRuntimeClassImporter;
  cc: TPSRuntimeClass;
begin
  if Obj = nil then
  begin
    Result := false;
    exit;
  end;
  r := Self.FindSpecialProcImport(SpecImport);
  if R = nil then
  begin
    Result := false;
    exit;
  end;
  cc := r.FindClass(var2type.ExportName);
  if cc = nil then
  begin
    result := false;
    exit;
  end;
  try
    Result := Obj is cc.FClass;
  except
    Result := false;
  end;
end;

type
  TVariantArray = array of Variant;
  PVariantArray = ^TVariantArray;
function VariantInArray(var1: Pointer; var1Type: TPSTypeRec; var2: PVariantArray): Boolean;
var
  lDest: Variant;
  i: Integer;
begin
  IntPIFVariantToVariant(var1, var1Type, lDest);
  result := false;
  for i := 0 to Length(var2^) -1 do begin
    if var2^[i] = lDest then begin
      result := true;
      break;
    end;
  end;
end;


function TPSExec.DoBooleanCalc(var1, Var2, into: Pointer; var1Type, var2type, intotype: TPSTypeRec; Cmd: Cardinal): Boolean;
var
  b: Boolean;
  Tmp: TObject;
  tvar: Variant;


  procedure SetBoolean(b: Boolean; var Ok: Boolean);
  begin
    Ok := True;
    case IntoType.BaseType of
      btU8: tbtu8(Into^):= Cardinal(b);
      btS8: tbts8(Into^) := Longint(b);
      btU16: tbtu16(Into^) := Cardinal(b);
      btS16: tbts16(Into^) := Longint(b);
      btU32: tbtu32(Into^) := Cardinal(b);
      btS32: tbts32(Into^) := Longint(b);
      btVariant: Variant(Into^) := b;
    else begin
        CMD_Err(ErTypeMismatch);
        Ok := False;
      end;
    end;
  end;
begin
  Result := true;
  try
    case Cmd of
      0: begin { >= }
          case var1Type.BaseType of
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) >= PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) >= PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) >= PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) >= PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) >= PSGetInt(Var2, var2type);
            btU32: b := tbtu32(var1^) >= PSGetUInt(Var2, var2type);
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) >= tbtu8(Var2^);
                  btS8: b := tbts32(var1^) >= tbts8(Var2^);
                  btU16: b := tbts32(var1^) >= tbtu16(Var2^);
                  btS16: b := tbts32(var1^) >= tbts16(Var2^);
                  btU32: b := tbts32(var1^) >= Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) >= tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) >= tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) >= tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) >= tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) >= tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) >= Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) >= Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) >= Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btSingle: b := tbtsingle(var1^) >= PSGetReal(Var2, var2type);
            btDouble: b := tbtdouble(var1^) >= PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) >= PSGetCurrency(Var2, var2type);
            btExtended: b := tbtextended(var1^) >= PSGetReal(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) >= PSGetInt64(Var2, var2type);
            {$ENDIF}
            btPChar,btString: b := tbtstring(var1^) >= PSGetAnsiString(Var2, var2type);
            btChar: b := tbtchar(var1^) >= PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) >= PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) >= PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodestring(var1^) >= PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) >= tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Subset(var2, var1, TPSTypeRec_Set(var1Type).aByteSize, b);
                end else result := False;
              end;
          else begin
              CMD_Err(ErTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(ErTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      1: begin { <= }
          case var1Type.BaseType of
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) <= PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) <= PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) <= PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) <= PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) <= PSGetInt(Var2, var2type);
            btU32: b := tbtu32(var1^) <= PSGetUInt(Var2, var2type);
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) <= tbtu8(Var2^);
                  btS8: b := tbts32(var1^) <= tbts8(Var2^);
                  btU16: b := tbts32(var1^) <= tbtu16(Var2^);
                  btS16: b := tbts32(var1^) <= tbts16(Var2^);
                  btU32: b := tbts32(var1^) <= Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) <= tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) <= tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) <= tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) <= tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) <= tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) <= Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) <= Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) <= Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;            btSingle: b := tbtsingle(var1^) <= PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) <= PSGetCurrency(Var2, var2type);
            btDouble: b := tbtdouble(var1^) <= PSGetReal(Var2, var2type);
            btExtended: b := tbtextended(var1^) <= PSGetReal(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) <= PSGetInt64(Var2, var2type);
            {$ENDIF}
            btPChar,btString: b := tbtstring(var1^) <= PSGetAnsiString(Var2, var2type);
            btChar: b := tbtchar(var1^) <= PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) <= PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) <= PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodestring(var1^) <= PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) <= tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Subset(var1, var2, TPSTypeRec_Set(var1Type).aByteSize, b);
                end else result := False;
              end;
          else begin
              CMD_Err(ErTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      2: begin { > }
          case var1Type.BaseType of
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) > PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) > PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) > PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) > PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) > PSGetInt(Var2, var2type);
            btU32: b := tbtu32(var1^) > PSGetUInt(Var2, var2type);
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) > tbtu8(Var2^);
                  btS8: b := tbts32(var1^) > tbts8(Var2^);
                  btU16: b := tbts32(var1^) > tbtu16(Var2^);
                  btS16: b := tbts32(var1^) > tbts16(Var2^);
                  btU32: b := tbts32(var1^) > Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) > tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) > tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) > tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) > tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) > tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) > Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) = Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) > Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;            btSingle: b := tbtsingle(var1^) > PSGetReal(Var2, var2type);
            btDouble: b := tbtdouble(var1^) > PSGetReal(Var2, var2type);
            btExtended: b := tbtextended(var1^) > PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) > PSGetCurrency(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) > PSGetInt64(Var2, var2type);
            {$ENDIF}
            btPChar,btString: b := tbtstring(var1^) > PSGetAnsiString(Var2, var2type);
            btChar: b := tbtchar(var1^) > PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) > PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) > PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodestring(var1^) > PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) > tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      3: begin { < }
          case var1Type.BaseType of
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) < PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) < PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) < PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) < PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) < PSGetInt(Var2, var2type);
            btU32: b := tbtu32(var1^) < PSGetUInt(Var2, var2type);
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) < tbtu8(Var2^);
                  btS8: b := tbts32(var1^) < tbts8(Var2^);
                  btU16: b := tbts32(var1^) < tbtu16(Var2^);
                  btS16: b := tbts32(var1^) < tbts16(Var2^);
                  btU32: b := tbts32(var1^) < Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) < tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) < tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) < tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) < tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) < tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) < Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) < Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) < Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;            btSingle: b := tbtsingle(var1^) < PSGetReal(Var2, var2type);
            btDouble: b := tbtdouble(var1^) < PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) < PSGetCurrency(Var2, var2type);
            btExtended: b := tbtextended(var1^) < PSGetReal(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) < PSGetInt64(Var2, var2type);
            {$ENDIF}
            btPChar,btString: b := tbtstring(var1^) < PSGetAnsiString(Var2, var2type);
            btChar: b := tbtchar(var1^) < PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) < PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) < PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodestring(var1^) < PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) < tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      4: begin { <> }
          case var1Type.BaseType of
            btInterface:
              begin
                if var2Type.BaseType = btInterface then
                  b := Pointer(var1^) <> Pointer(var2^) // no need to cast it to IUnknown
                else
                  Result := false;
              end;
            btClass:
              begin
                if var2Type.BaseType = btclass then
                  b := TObject(var1^) <> TObject(var2^)
                else
                  Result := false;
              end;
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) <> PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) <> PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) <> PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) <> PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) <> PSGetInt(Var2, var2type);
            btProcPtr:
              begin
                if Pointer(Var1^) = Pointer(Var2^) then
                begin
                  if Longint(Var1^) = 0 then
                    b := ((Pointer(Pointer(IPointer(Var1)+PointerSize2)^) <> Pointer(Pointer(IPointer(Var2)+PointerSize2)^)) or
                   (Pointer(Pointer(IPointer(Var1)+PointerSize2)^) <> Pointer(Pointer(IPointer(Var2)+PointerSize2)^)))
                  else
                    b := False;
                end else b := True;
              end;
            btU32: b := tbtu32(var1^) <> PSGetUInt(Var2, var2type);
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) <> tbtu8(Var2^);
                  btS8: b := tbts32(var1^) <> tbts8(Var2^);
                  btU16: b := tbts32(var1^) <> tbtu16(Var2^);
                  btS16: b := tbts32(var1^) <> tbts16(Var2^);
                  btProcPtr, btU32: b := tbts32(var1^)<> Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) <> tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) <> tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) <> tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) <> tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) <> tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) <> Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) <> Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) <> Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;            btSingle: b := tbtsingle(var1^) <> PSGetReal(Var2, var2type);
            btDouble: b := tbtdouble(var1^) <> PSGetReal(Var2, var2type);
            btExtended: b := tbtextended(var1^) <> PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) <> PSGetCurrency(Var2, var2type);
            btPChar,btString: b := tbtstring(var1^) <> PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) <> PSGetInt64(Var2, var2type);
            {$ENDIF}
            btChar: b := tbtchar(var1^) <> PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) <> PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) <> PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodeString(var1^) <> PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) <> tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Equal(var1, var2, TPSTypeRec_Set(var1Type).aByteSize, b);
                  b := not b;
                end else result := False;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      5: begin { = }
          case var1Type.BaseType of
            btInterface:
              begin
                if var2Type.BaseType = btInterface then
                  b := Pointer(var1^) = Pointer(var2^) // no need to cast it to IUnknown
                else
                  Result := false;
              end;
            btClass:
              begin
                if var2Type.BaseType = btclass then
                  b := TObject(var1^) = TObject(var2^)
                else
                  Result := false;
              end;
            btU8:
            if (var2Type.BaseType = btString) or (Var2Type.BaseType = btPChar) then
              b := tbtchar(tbtu8(var1^)) = PSGetAnsiString(Var2, var2type)
            else
              b := tbtu8(var1^) = PSGetUInt(Var2, var2type);
            btS8: b := tbts8(var1^) = PSGetInt(Var2, var2type);
            btU16: b := tbtu16(var1^) = PSGetUInt(Var2, var2type);
            btS16: b := tbts16(var1^) = PSGetInt(Var2, var2type);
            btU32: b := tbtu32(var1^) = PSGetUInt(Var2, var2type);
            btProcPtr:
              begin
                if Pointer(Var1^) = Pointer(Var2^) then
                begin
                  if Longint(Var1^) = 0 then
                    b := ((Pointer(Pointer(IPointer(Var1)+PointerSize2)^) = Pointer(Pointer(IPointer(Var2)+PointerSize2)^)) and
                   (Pointer(Pointer(IPointer(Var1)+PointerSize2)^) = Pointer(Pointer(IPointer(Var2)+PointerSize2)^)))
                  else
                    b := True;
                end else b := False;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: b := tbts32(var1^) = tbtu8(Var2^);
                  btS8: b := tbts32(var1^) = tbts8(Var2^);
                  btU16: b := tbts32(var1^) = tbtu16(Var2^);
                  btS16: b := tbts32(var1^) = tbts16(Var2^);
                  btProcPtr, btU32: b := tbts32(var1^) = Longint(tbtu32(Var2^));
                  btS32: b := tbts32(var1^) = tbts32(Var2^);
                  btDouble: b := PSGetReal(Var1, var1type) = tbtdouble(var2^);
                  btSingle: B := psGetReal(Var1, var1Type) = tbtsingle(var2^);
                  btExtended: B := psGetReal(Var1, var1Type) = tbtExtended(var2^);
              {$IFNDEF PS_NOINT64} btS64: b := tbts32(var1^) = tbts64(Var2^);{$ENDIF}
                  btChar: b := tbts32(var1^) = Ord(tbtchar(Var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: b := tbts32(var1^) = Ord(tbtwidechar(Var2^));{$ENDIF}
                  btVariant: b := tbts32(var1^) = Variant(Var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;            btSingle: b := tbtsingle(var1^) = PSGetReal(Var2, var2type);
            btDouble: b := tbtdouble(var1^) = PSGetReal(Var2, var2type);
            btExtended: b := tbtextended(var1^) = PSGetReal(Var2, var2type);
            btCurrency: b := tbtcurrency(var1^) = PSGetCurrency(Var2, var2type);
            btPchar, btString: b := tbtstring(var1^) = PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOINT64}
            btS64: b := tbts64(var1^) = PSGetInt64(Var2, var2type);
            {$ENDIF}
            btChar: b := tbtchar(var1^) = PSGetAnsiString(Var2, var2type);
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: b := tbtwidechar(var1^) = PSGetWideString(Var2, var2type);
            btWideString: b := tbtwidestring(var1^) = PSGetWideString(Var2, var2type);
            btUnicodeString: b := tbtUnicodestring(var1^) = PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  b := Variant(var1^) = tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Equal(var1, var2, TPSTypeRec_Set(var1Type).aByteSize, b);
                end else result := False;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
          SetBoolean(b, Result);
        end;
      6: begin { in }
          if (var2Type.BaseType = btArray) and (TPSTypeRec_Array(var2type).ArrayType.BaseType = btVariant) then
          begin
            b := VariantInArray(var1, var1Type, var2);
            SetBoolean(b, Result);
          end else
          if var2Type.BaseType = btSet then
          begin
            Cmd := PSGetUInt(var1, var1type);
            if not Result then
            begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
            if Cmd >= Cardinal(TPSTypeRec_Set(var2Type).aBitSize) then
            begin
              cmd_Err(erOutofRecordRange);
              Result := False;
              Exit;
            end;
            Set_membership(Cmd, var2, b);
            SetBoolean(b, Result);
          end else
          begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      7:
        begin // is
          case var1Type.BaseType of
            btClass:
              begin
                if var2type.BaseType <> btU32 then
                  Result := False
                else
                begin
                  var2type := FTypes[tbtu32(var2^)];
                  if (var2type = nil) or (var2type.BaseType <> btClass) then
                    Result := false
                  else
                  begin
                    Setboolean(Class_IS(Self, TObject(var1^), var2type), Result);
                  end;
                end;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
    else begin
        Result := False;
        CMD_Err(erInvalidOpcodeParameter);
        exit;
      end;
    end;
  except
    {$IFDEF DELPHI6UP}
    Tmp := AcquireExceptionObject;
    {$ELSE}
    if RaiseList <> nil then
    begin
      Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
      PRaiseFrame(RaiseList)^.ExceptObject := nil;
    end else
      Tmp := nil;
    {$ENDIF}
    if Tmp <> nil then
    begin
      if Tmp is EPSException then
      begin
        Result := False;
        ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
        exit;
      end else
      if Tmp is EDivByZero then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EZeroDivide then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EMathError then
      begin
        Result := False;
        CMD_Err3(erMathError, '', Tmp);
        Exit;
      end;
    end;
    if (tmp <> nil) and (Tmp is Exception) then
      CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp)
    else
      CMD_Err3(erException, '', Tmp);
    Result := False;
  end;
end;

function VarIsFloat(const V: Variant): Boolean;
begin
  Result := VarType(V) in [varSingle, varDouble, varCurrency];
end;

function TPSExec.DoCalc(var1, Var2: Pointer; var1Type, var2type: TPSTypeRec; CalcType: Cardinal): Boolean;
    { var1=dest, var2=src }
var
  Tmp: TObject;
  tvar: Variant;
begin
  try
    Result := True;
    case CalcType of
      0: begin { + }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) + PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) + PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) + PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) + PSGetInt(Var2, var2type);
            btU32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtU32(var1^) := tbtU32(var1^) + tbtu8(var2^);
                  btS8: tbtU32(var1^) := tbtU32(var1^) + cardinal(longint(tbts8(var2^)));
                  btU16: tbtU32(var1^) := tbtU32(var1^) + tbtu16(var2^);
                  btS16: tbtU32(var1^) := tbtU32(var1^) + cardinal(longint(tbts16(var2^)));
                  btU32: tbtU32(var1^) := tbtU32(var1^) + tbtu32(var2^);
                  btS32: tbtU32(var1^) := tbtU32(var1^) + cardinal(tbts32(var2^));
              {$IFNDEF PS_NOINT64} btS64: tbtU32(var1^) := tbtU32(var1^) + tbts64(var2^);{$ENDIF}
                  btChar: tbtU32(var1^) := tbtU32(var1^) +  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtU32(var1^) := tbtU32(var1^) + Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbtU32(var1^) := tbtU32(var1^) + Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbts32(var1^) := tbts32(var1^) + tbtu8(var2^);
                  btS8: tbts32(var1^) := tbts32(var1^) + tbts8(var2^);
                  btU16: tbts32(var1^) := tbts32(var1^) + tbtu16(var2^);
                  btS16: tbts32(var1^) := tbts32(var1^) + tbts16(var2^);
                  btU32: tbts32(var1^) := tbts32(var1^) + Longint(tbtu32(var2^));
                  btS32: tbts32(var1^) := tbts32(var1^) + tbts32(var2^);
              {$IFNDEF PS_NOINT64} btS64: tbts32(var1^) := tbts32(var1^) + tbts64(var2^);{$ENDIF}
                  btChar: tbts32(var1^) := tbts32(var1^) +  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbts32(var1^) := tbts32(var1^) + Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbts32(var1^) := tbts32(var1^) + Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
           {$IFNDEF PS_NOINT64}
            btS64:  tbts64(var1^) := tbts64(var1^) + PSGetInt64(var2, var2type);
           {$ENDIF}
            btSingle:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtsingle(var1^) := tbtsingle(var1^) + tbtu8(var2^);
                  btS8: tbtsingle(var1^) := tbtsingle(var1^) + tbts8(var2^);
                  btU16: tbtsingle(var1^) := tbtsingle(var1^) + tbtu16(var2^);
                  btS16: tbtsingle(var1^) := tbtsingle(var1^) + tbts16(var2^);
                  btU32: tbtsingle(var1^) := tbtsingle(var1^) + tbtu32(var2^);
                  btS32: tbtsingle(var1^) := tbtsingle(var1^) + tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtsingle(var1^) := tbtsingle(var1^) + tbts64(var2^);{$ENDIF}
                  btSingle: tbtsingle(var1^) := tbtsingle(var1^) + tbtsingle(var2^);
                  btDouble: tbtsingle(var1^) := tbtsingle(var1^) + tbtdouble(var2^);
                  btExtended: tbtsingle(var1^) := tbtsingle(var1^) + tbtextended(var2^);
                  btCurrency: tbtsingle(var1^) := tbtsingle(var1^) + tbtcurrency(var2^);
                  btVariant:  tbtsingle(var1^) := tbtsingle(var1^) +  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btDouble:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtdouble(var1^) := tbtdouble(var1^) + tbtu8(var2^);
                  btS8: tbtdouble(var1^) := tbtdouble(var1^) + tbts8(var2^);
                  btU16: tbtdouble(var1^) := tbtdouble(var1^) + tbtu16(var2^);
                  btS16: tbtdouble(var1^) := tbtdouble(var1^) + tbts16(var2^);
                  btU32: tbtdouble(var1^) := tbtdouble(var1^) + tbtu32(var2^);
                  btS32: tbtdouble(var1^) := tbtdouble(var1^) + tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtdouble(var1^) := tbtdouble(var1^) + tbts64(var2^);{$ENDIF}
                  btSingle: tbtdouble(var1^) := tbtdouble(var1^) + tbtsingle(var2^);
                  btDouble: tbtdouble(var1^) := tbtdouble(var1^) + tbtdouble(var2^);
                  btExtended: tbtdouble(var1^) := tbtdouble(var1^) + tbtextended(var2^);
                  btCurrency: tbtdouble(var1^) := tbtdouble(var1^) + tbtcurrency(var2^);
                  btVariant:  tbtdouble(var1^) := tbtdouble(var1^) +  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btCurrency:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtu8(var2^);
                  btS8: tbtcurrency(var1^) := tbtcurrency(var1^) + tbts8(var2^);
                  btU16: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtu16(var2^);
                  btS16: tbtcurrency(var1^) := tbtcurrency(var1^) + tbts16(var2^);
                  btU32: tbtcurrency(var1^) := tbtdouble(var1^) + tbtu32(var2^);
                  btS32: tbtcurrency(var1^) := tbtcurrency(var1^) + tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtcurrency(var1^) := tbtdouble(var1^) + tbts64(var2^);{$ENDIF}
                  btSingle: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtsingle(var2^);
                  btDouble: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtdouble(var2^);
                  btExtended: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtextended(var2^);
                  btCurrency: tbtcurrency(var1^) := tbtcurrency(var1^) + tbtcurrency(var2^);
                  btVariant:  tbtcurrency(var1^) := tbtcurrency(var1^) +  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btExtended:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtextended(var1^) := tbtextended(var1^) + tbtu8(var2^);
                  btS8: tbtextended(var1^) := tbtextended(var1^) + tbts8(var2^);
                  btU16: tbtextended(var1^) := tbtextended(var1^) + tbtu16(var2^);
                  btS16: tbtextended(var1^) := tbtextended(var1^) + tbts16(var2^);
                  btU32: tbtextended(var1^) := tbtextended(var1^) + tbtu32(var2^);
                  btS32: tbtextended(var1^) := tbtextended(var1^) + tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtextended(var1^) := tbtextended(var1^) + tbts64(var2^);{$ENDIF}
                  btSingle: tbtextended(var1^) := tbtextended(var1^) + tbtsingle(var2^);
                  btDouble: tbtextended(var1^) := tbtextended(var1^) + tbtdouble(var2^);
                  btExtended: tbtextended(var1^) := tbtextended(var1^) + tbtextended(var2^);
                  btCurrency: tbtextended(var1^) := tbtextended(var1^) + tbtcurrency(var2^);
                  btVariant:  tbtextended(var1^) := tbtextended(var1^) +  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btPchar, btString: tbtstring(var1^) := tbtstring(var1^) + PSGetAnsiString(Var2, var2type);
            btChar: tbtchar(var1^) := tbtchar(ord(tbtchar(var1^)) +  PSGetUInt(Var2, var2type));
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: tbtwidechar(var1^) := widechar(ord(tbtwidechar(var1^)) + PSGetUInt(Var2, var2type));
            btWideString: tbtwidestring(var1^) := tbtwidestring(var1^) + PSGetWideString(Var2, var2type);
            btUnicodeString: tbtUnicodestring(var1^) := tbtUnicodestring(var1^) + PSGetUnicodeString(Var2, var2type);
            {$ENDIF}
            btVariant:
              begin
                tvar := null;
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) + tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Union(var1, var2, TPSTypeRec_Set(var1Type).aByteSize);
                end else result := False;
              end;

          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      1: begin { - }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) - PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) - PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) - PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) - PSGetInt(Var2, var2type);
            btU32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtU32(var1^) := tbtU32(var1^) - tbtu8(var2^);
                  btS8: tbtU32(var1^) := tbtU32(var1^) - cardinal(longint(tbts8(var2^)));
                  btU16: tbtU32(var1^) := tbtU32(var1^) - tbtu16(var2^);
                  btS16: tbtU32(var1^) := tbtU32(var1^) - cardinal(longint(tbts16(var2^)));
                  btU32: tbtU32(var1^) := tbtU32(var1^) - tbtu32(var2^);
                  btS32: tbtU32(var1^) := tbtU32(var1^) - cardinal(tbts32(var2^));
              {$IFNDEF PS_NOINT64} btS64: tbtU32(var1^) := tbtU32(var1^) - tbts64(var2^);{$ENDIF}
                  btChar: tbtU32(var1^) := tbtU32(var1^) -  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtU32(var1^) := tbtU32(var1^) - Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbtU32(var1^) := tbtU32(var1^) - Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbts32(var1^) := tbts32(var1^) - tbtu8(var2^);
                  btS8: tbts32(var1^) := tbts32(var1^) - tbts8(var2^);
                  btU16: tbts32(var1^) := tbts32(var1^) - tbtu16(var2^);
                  btS16: tbts32(var1^) := tbts32(var1^) - tbts16(var2^);
                  btU32: tbts32(var1^) := tbts32(var1^) - Longint(tbtu32(var2^));
                  btS32: tbts32(var1^) := tbts32(var1^) - tbts32(var2^);
              {$IFNDEF PS_NOINT64} btS64: tbts32(var1^) := tbts32(var1^) - tbts64(var2^);{$ENDIF}
                  btChar: tbts32(var1^) := tbts32(var1^) -  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbts32(var1^) := tbts32(var1^) - Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbts32(var1^) := tbts32(var1^) - Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) - PSGetInt64(var2, var2type);
           {$ENDIF}
            btSingle:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtsingle(var1^) := tbtsingle(var1^) - tbtu8(var2^);
                  btS8: tbtsingle(var1^) := tbtsingle(var1^) - tbts8(var2^);
                  btU16: tbtsingle(var1^) := tbtsingle(var1^) - tbtu16(var2^);
                  btS16: tbtsingle(var1^) := tbtsingle(var1^) - tbts16(var2^);
                  btU32: tbtsingle(var1^) := tbtsingle(var1^) - tbtu32(var2^);
                  btS32: tbtsingle(var1^) := tbtsingle(var1^) - tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtsingle(var1^) := tbtsingle(var1^) - tbts64(var2^);{$ENDIF}
                  btSingle: tbtsingle(var1^) := tbtsingle(var1^) - tbtsingle(var2^);
                  btDouble: tbtsingle(var1^) := tbtsingle(var1^) - tbtdouble(var2^);
                  btExtended: tbtsingle(var1^) := tbtsingle(var1^) - tbtextended(var2^);
                  btCurrency: tbtsingle(var1^) := tbtsingle(var1^) - tbtcurrency(var2^);
                  btVariant:  tbtsingle(var1^) := tbtsingle(var1^) - Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btCurrency:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtu8(var2^);
                  btS8: tbtcurrency(var1^) := tbtcurrency(var1^) - tbts8(var2^);
                  btU16: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtu16(var2^);
                  btS16: tbtcurrency(var1^) := tbtcurrency(var1^) - tbts16(var2^);
                  btU32: tbtcurrency(var1^) := tbtdouble(var1^) - tbtu32(var2^);
                  btS32: tbtcurrency(var1^) := tbtcurrency(var1^) - tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtcurrency(var1^) := tbtdouble(var1^) - tbts64(var2^);{$ENDIF}
                  btSingle: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtsingle(var2^);
                  btDouble: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtdouble(var2^);
                  btExtended: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtextended(var2^);
                  btCurrency: tbtcurrency(var1^) := tbtcurrency(var1^) - tbtcurrency(var2^);
                  btVariant:  tbtcurrency(var1^) := tbtcurrency(var1^) -  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btDouble:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtdouble(var1^) := tbtdouble(var1^) - tbtu8(var2^);
                  btS8: tbtdouble(var1^) := tbtdouble(var1^) - tbts8(var2^);
                  btU16: tbtdouble(var1^) := tbtdouble(var1^) - tbtu16(var2^);
                  btS16: tbtdouble(var1^) := tbtdouble(var1^) - tbts16(var2^);
                  btU32: tbtdouble(var1^) := tbtdouble(var1^) - tbtu32(var2^);
                  btS32: tbtdouble(var1^) := tbtdouble(var1^) - tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtdouble(var1^) := tbtdouble(var1^) - tbts64(var2^);{$ENDIF}
                  btSingle: tbtdouble(var1^) := tbtdouble(var1^) - tbtsingle(var2^);
                  btDouble: tbtdouble(var1^) := tbtdouble(var1^) - tbtdouble(var2^);
                  btExtended: tbtdouble(var1^) := tbtdouble(var1^) - tbtextended(var2^);
                  btCurrency: tbtdouble(var1^) := tbtdouble(var1^) - tbtcurrency(var2^);
                  btVariant:  tbtdouble(var1^) := tbtdouble(var1^) -  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btExtended:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtextended(var1^) := tbtextended(var1^) - tbtu8(var2^);
                  btS8: tbtextended(var1^) := tbtextended(var1^) - tbts8(var2^);
                  btU16: tbtextended(var1^) := tbtextended(var1^) - tbtu16(var2^);
                  btS16: tbtextended(var1^) := tbtextended(var1^) - tbts16(var2^);
                  btU32: tbtextended(var1^) := tbtextended(var1^) - tbtu32(var2^);
                  btS32: tbtextended(var1^) := tbtextended(var1^) - tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtextended(var1^) := tbtextended(var1^) -+tbts64(var2^);{$ENDIF}
                  btSingle: tbtextended(var1^) := tbtextended(var1^) - tbtsingle(var2^);
                  btDouble: tbtextended(var1^) := tbtextended(var1^) - tbtdouble(var2^);
                  btExtended: tbtextended(var1^) := tbtextended(var1^) - tbtextended(var2^);
                  btCurrency: tbtextended(var1^) := tbtextended(var1^) - tbtcurrency(var2^);
                  btVariant:  tbtextended(var1^) := tbtextended(var1^) -  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btChar: tbtchar(var1^):= tbtchar(ord(tbtchar(var1^)) - PSGetUInt(Var2, var2type));
            {$IFNDEF PS_NOWIDESTRING}
            btWideChar: tbtwidechar(var1^) := widechar(ord(tbtwidechar(var1^)) - PSGetUInt(Var2, var2type));
            {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) - tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Diff(var1, var2, TPSTypeRec_Set(var1Type).aByteSize);
                end else result := False;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      2: begin { * }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) * PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) * PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) * PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) * PSGetInt(Var2, var2type);
            btU32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtU32(var1^) := tbtU32(var1^) * tbtu8(var2^);
                  btS8: tbtU32(var1^) := tbtU32(var1^) * cardinal(longint(tbts8(var2^)));
                  btU16: tbtU32(var1^) := tbtU32(var1^) * tbtu16(var2^);
                  btS16: tbtU32(var1^) := tbtU32(var1^) * cardinal(longint(tbts16(var2^)));
                  btU32: tbtU32(var1^) := tbtU32(var1^) * tbtu32(var2^);
                  btS32: tbtU32(var1^) := tbtU32(var1^) * cardinal(tbts32(var2^));
              {$IFNDEF PS_NOINT64} btS64: tbtU32(var1^) := tbtU32(var1^) * tbts64(var2^);{$ENDIF}
                  btChar: tbtU32(var1^) := tbtU32(var1^) *  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtU32(var1^) := tbtU32(var1^) * Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbtU32(var1^) := tbtU32(var1^) * Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbts32(var1^) := tbts32(var1^) * tbtu8(var2^);
                  btS8: tbts32(var1^) := tbts32(var1^) * tbts8(var2^);
                  btU16: tbts32(var1^) := tbts32(var1^) * tbtu16(var2^);
                  btS16: tbts32(var1^) := tbts32(var1^) * tbts16(var2^);
                  btU32: tbts32(var1^) := tbts32(var1^) * Longint(tbtu32(var2^));
                  btS32: tbts32(var1^) := tbts32(var1^) * tbts32(var2^);
              {$IFNDEF PS_NOINT64} btS64: tbts32(var1^) := tbts32(var1^) * tbts64(var2^);{$ENDIF}
                  btChar: tbts32(var1^) := tbts32(var1^) *  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbts32(var1^) := tbts32(var1^) * Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbts32(var1^) := tbts32(var1^) * Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) * PSGetInt64(var2, var2type);
           {$ENDIF}
            btCurrency:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtu8(var2^);
                  btS8: tbtcurrency(var1^) := tbtcurrency(var1^) * tbts8(var2^);
                  btU16: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtu16(var2^);
                  btS16: tbtcurrency(var1^) := tbtcurrency(var1^) * tbts16(var2^);
                  btU32: tbtcurrency(var1^) := tbtdouble(var1^) * tbtu32(var2^);
                  btS32: tbtcurrency(var1^) := tbtcurrency(var1^) * tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtcurrency(var1^) := tbtdouble(var1^) * tbts64(var2^);{$ENDIF}
                  btSingle: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtsingle(var2^);
                  btDouble: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtdouble(var2^);
                  btExtended: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtextended(var2^);
                  btCurrency: tbtcurrency(var1^) := tbtcurrency(var1^) * tbtcurrency(var2^);
                  btVariant:  tbtcurrency(var1^) := tbtcurrency(var1^) *  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btSingle:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtsingle(var1^) := tbtsingle(var1^) *tbtu8(var2^);
                  btS8: tbtsingle(var1^) := tbtsingle(var1^) *tbts8(var2^);
                  btU16: tbtsingle(var1^) := tbtsingle(var1^) *tbtu16(var2^);
                  btS16: tbtsingle(var1^) := tbtsingle(var1^) *tbts16(var2^);
                  btU32: tbtsingle(var1^) := tbtsingle(var1^) *tbtu32(var2^);
                  btS32: tbtsingle(var1^) := tbtsingle(var1^) *tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtsingle(var1^) := tbtsingle(var1^) *tbts64(var2^);{$ENDIF}
                  btSingle: tbtsingle(var1^) := tbtsingle(var1^) *tbtsingle(var2^);
                  btDouble: tbtsingle(var1^) := tbtsingle(var1^) *tbtdouble(var2^);
                  btExtended: tbtsingle(var1^) := tbtsingle(var1^) *tbtextended(var2^);
                  btCurrency: tbtsingle(var1^) := tbtsingle(var1^) *tbtcurrency(var2^);
                  btVariant:  tbtsingle(var1^) := tbtsingle(var1^) * Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btDouble:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtdouble(var1^) := tbtdouble(var1^) *tbtu8(var2^);
                  btS8: tbtdouble(var1^) := tbtdouble(var1^) *tbts8(var2^);
                  btU16: tbtdouble(var1^) := tbtdouble(var1^) *tbtu16(var2^);
                  btS16: tbtdouble(var1^) := tbtdouble(var1^) *tbts16(var2^);
                  btU32: tbtdouble(var1^) := tbtdouble(var1^) *tbtu32(var2^);
                  btS32: tbtdouble(var1^) := tbtdouble(var1^) *tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtdouble(var1^) := tbtdouble(var1^) *tbts64(var2^);{$ENDIF}
                  btSingle: tbtdouble(var1^) := tbtdouble(var1^) *tbtsingle(var2^);
                  btDouble: tbtdouble(var1^) := tbtdouble(var1^) *tbtdouble(var2^);
                  btExtended: tbtdouble(var1^) := tbtdouble(var1^) *tbtextended(var2^);
                  btCurrency: tbtdouble(var1^) := tbtdouble(var1^) *tbtcurrency(var2^);
                  btVariant:  tbtdouble(var1^) := tbtdouble(var1^) * Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btExtended:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtextended(var1^) := tbtextended(var1^) *tbtu8(var2^);
                  btS8: tbtextended(var1^) := tbtextended(var1^) *tbts8(var2^);
                  btU16: tbtextended(var1^) := tbtextended(var1^) *tbtu16(var2^);
                  btS16: tbtextended(var1^) := tbtextended(var1^) *tbts16(var2^);
                  btU32: tbtextended(var1^) := tbtextended(var1^) *tbtu32(var2^);
                  btS32: tbtextended(var1^) := tbtextended(var1^) *tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtextended(var1^) := tbtextended(var1^) *tbts64(var2^);{$ENDIF}
                  btSingle: tbtextended(var1^) := tbtextended(var1^) *tbtsingle(var2^);
                  btDouble: tbtextended(var1^) := tbtextended(var1^) *tbtdouble(var2^);
                  btExtended: tbtextended(var1^) := tbtextended(var1^) *tbtextended(var2^);
                  btCurrency: tbtextended(var1^) := tbtextended(var1^) *tbtcurrency(var2^);
                  btVariant:  tbtextended(var1^) := tbtextended(var1^) * Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) * tvar;
              end;
            btSet:
              begin
                if var1Type = var2Type then
                begin
                  Set_Intersect(var1, var2, TPSTypeRec_Set(var1Type).aByteSize);
                end else result := False;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      3: begin { / }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) div PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) div PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) div PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) div PSGetInt(Var2, var2type);
            btU32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtU32(var1^) := tbtU32(var1^) div tbtu8(var2^);
                  btS8: tbtU32(var1^) := tbtU32(var1^) div cardinal(longint(tbts8(var2^)));
                  btU16: tbtU32(var1^) := tbtU32(var1^) div tbtu16(var2^);
                  btS16: tbtU32(var1^) := tbtU32(var1^) div cardinal(longint(tbts16(var2^)));
                  btU32: tbtU32(var1^) := tbtU32(var1^) div tbtu32(var2^);
                  btS32: tbtU32(var1^) := tbtU32(var1^) div cardinal(tbts32(var2^));
              {$IFNDEF PS_NOINT64} btS64: tbtU32(var1^) := tbtU32(var1^) div tbts64(var2^);{$ENDIF}
                  btChar: tbtU32(var1^) := tbtU32(var1^) div  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtU32(var1^) := tbtU32(var1^) div Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbtU32(var1^) := tbtU32(var1^) div Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbts32(var1^) := tbts32(var1^) div tbtu8(var2^);
                  btS8: tbts32(var1^) := tbts32(var1^) div tbts8(var2^);
                  btU16: tbts32(var1^) := tbts32(var1^) div tbtu16(var2^);
                  btS16: tbts32(var1^) := tbts32(var1^) div tbts16(var2^);
                  btU32: tbts32(var1^) := tbts32(var1^) div Longint(tbtu32(var2^));
                  btS32: tbts32(var1^) := tbts32(var1^) div tbts32(var2^);
              {$IFNDEF PS_NOINT64} btS64: tbts32(var1^) := tbts32(var1^) div tbts64(var2^);{$ENDIF}
                  btChar: tbts32(var1^) := tbts32(var1^) div  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbts32(var1^) := tbts32(var1^) div Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbts32(var1^) := tbts32(var1^) div Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) div PSGetInt64(var2, var2type);
           {$ENDIF}
            btSingle:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtsingle(var1^) := tbtsingle(var1^) / tbtu8(var2^);
                  btS8: tbtsingle(var1^) := tbtsingle(var1^) / tbts8(var2^);
                  btU16: tbtsingle(var1^) := tbtsingle(var1^) / tbtu16(var2^);
                  btS16: tbtsingle(var1^) := tbtsingle(var1^) / tbts16(var2^);
                  btU32: tbtsingle(var1^) := tbtsingle(var1^) / tbtu32(var2^);
                  btS32: tbtsingle(var1^) := tbtsingle(var1^) / tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtsingle(var1^) := tbtsingle(var1^) / tbts64(var2^);{$ENDIF}
                  btSingle: tbtsingle(var1^) := tbtsingle(var1^) / tbtsingle(var2^);
                  btDouble: tbtsingle(var1^) := tbtsingle(var1^) / tbtdouble(var2^);
                  btExtended: tbtsingle(var1^) := tbtsingle(var1^) / tbtextended(var2^);
                  btCurrency: tbtsingle(var1^) := tbtsingle(var1^) / tbtcurrency(var2^);
                  btVariant:  tbtsingle(var1^) := tbtsingle(var1^) /  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btCurrency:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtu8(var2^);
                  btS8: tbtcurrency(var1^) := tbtcurrency(var1^) / tbts8(var2^);
                  btU16: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtu16(var2^);
                  btS16: tbtcurrency(var1^) := tbtcurrency(var1^) / tbts16(var2^);
                  btU32: tbtcurrency(var1^) := tbtdouble(var1^) / tbtu32(var2^);
                  btS32: tbtcurrency(var1^) := tbtcurrency(var1^) / tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtcurrency(var1^) := tbtdouble(var1^) / tbts64(var2^);{$ENDIF}
                  btSingle: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtsingle(var2^);
                  btDouble: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtdouble(var2^);
                  btExtended: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtextended(var2^);
                  btCurrency: tbtcurrency(var1^) := tbtcurrency(var1^) / tbtcurrency(var2^);
                  btVariant:  tbtcurrency(var1^) := tbtcurrency(var1^) /  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btDouble:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtdouble(var1^) := tbtdouble(var1^) / tbtu8(var2^);
                  btS8: tbtdouble(var1^) := tbtdouble(var1^) / tbts8(var2^);
                  btU16: tbtdouble(var1^) := tbtdouble(var1^) / tbtu16(var2^);
                  btS16: tbtdouble(var1^) := tbtdouble(var1^) / tbts16(var2^);
                  btU32: tbtdouble(var1^) := tbtdouble(var1^) / tbtu32(var2^);
                  btS32: tbtdouble(var1^) := tbtdouble(var1^) / tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtdouble(var1^) := tbtdouble(var1^) / tbts64(var2^);{$ENDIF}
                  btSingle: tbtdouble(var1^) := tbtdouble(var1^) / tbtsingle(var2^);
                  btDouble: tbtdouble(var1^) := tbtdouble(var1^) / tbtdouble(var2^);
                  btExtended: tbtdouble(var1^) := tbtdouble(var1^) / tbtextended(var2^);
                  btCurrency: tbtdouble(var1^) := tbtdouble(var1^) / tbtcurrency(var2^);
                  btVariant:  tbtdouble(var1^) := tbtdouble(var1^) /  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btExtended:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtextended(var1^) := tbtextended(var1^) / tbtu8(var2^);
                  btS8: tbtextended(var1^) := tbtextended(var1^) / tbts8(var2^);
                  btU16: tbtextended(var1^) := tbtextended(var1^) / tbtu16(var2^);
                  btS16: tbtextended(var1^) := tbtextended(var1^) / tbts16(var2^);
                  btU32: tbtextended(var1^) := tbtextended(var1^) / tbtu32(var2^);
                  btS32: tbtextended(var1^) := tbtextended(var1^) / tbts32(var2^);
              {$IFNDEF PS_NOINT64}    btS64: tbtextended(var1^) := tbtextended(var1^) / tbts64(var2^);{$ENDIF}
                  btSingle: tbtextended(var1^) := tbtextended(var1^) / tbtsingle(var2^);
                  btDouble: tbtextended(var1^) := tbtextended(var1^) / tbtdouble(var2^);
                  btExtended: tbtextended(var1^) := tbtextended(var1^) / tbtextended(var2^);
                  btCurrency: tbtextended(var1^) := tbtextended(var1^) / tbtcurrency(var2^);
                  btVariant:  tbtextended(var1^) := tbtextended(var1^) /  Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                begin
                  if VarIsFloat(variant(var1^)) then
                    Variant(var1^) := Variant(var1^) / tvar
                  else
                    Variant(var1^) := Variant(var1^) div tvar;
                end;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      4: begin { MOD }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) mod PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) mod PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) mod PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) mod PSGetInt(Var2, var2type);
            btU32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbtU32(var1^) := tbtU32(var1^) mod tbtu8(var2^);
                  btS8: tbtU32(var1^) := tbtU32(var1^) mod cardinal(longint(tbts8(var2^)));
                  btU16: tbtU32(var1^) := tbtU32(var1^) mod tbtu16(var2^);
                  btS16: tbtU32(var1^) := tbtU32(var1^) mod cardinal(longint(tbts16(var2^)));
                  btU32: tbtU32(var1^) := tbtU32(var1^) mod tbtu32(var2^);
                  btS32: tbtU32(var1^) := tbtU32(var1^) mod cardinal(tbts32(var2^));
              {$IFNDEF PS_NOINT64} btS64: tbtU32(var1^) := tbtU32(var1^) mod tbts64(var2^);{$ENDIF}
                  btChar: tbtU32(var1^) := tbtU32(var1^) mod  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbtU32(var1^) := tbtU32(var1^) mod Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbtU32(var1^) := tbtU32(var1^) mod Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
            btS32:
              begin
                if var2type.BaseType = btPointer then
                begin
                  var2type := PIFTypeRec(Pointer(IPointer(var2)+PointerSize)^);
                  var2 := Pointer(var2^);
                  if (var2 = nil) or (var2type = nil) then raise Exception.Create(RPS_TypeMismatch);
                end;
                case var2type.BaseType of
                  btU8: tbts32(var1^) := tbts32(var1^) mod tbtu8(var2^);
                  btS8: tbts32(var1^) := tbts32(var1^) mod tbts8(var2^);
                  btU16: tbts32(var1^) := tbts32(var1^) mod tbtu16(var2^);
                  btS16: tbts32(var1^) := tbts32(var1^) mod tbts16(var2^);
                  btU32: tbts32(var1^) := tbts32(var1^) mod Longint(tbtu32(var2^));
                  btS32: tbts32(var1^) := tbts32(var1^) mod tbts32(var2^);
              {$IFNDEF PS_NOINT64} btS64: tbts32(var1^) := tbts32(var1^) mod tbts64(var2^);{$ENDIF}
                  btChar: tbts32(var1^) := tbts32(var1^) mod  Ord(tbtchar(var2^));
              {$IFNDEF PS_NOWIDESTRING}    btWideChar: tbts32(var1^) := tbts32(var1^) mod Ord(tbtwidechar(var2^));{$ENDIF}
                  btVariant: tbts32(var1^) := tbts32(var1^) mod Variant(var2^);
                  else raise Exception.Create(RPS_TypeMismatch);
                end;
              end;
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) mod PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) mod tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      5: begin { SHL }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) shl PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) shl PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) shl PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) shl PSGetInt(Var2, var2type);
            btU32: tbtU32(var1^) := tbtU32(var1^) shl PSGetUInt(Var2, var2type);
            btS32: tbts32(var1^) := tbts32(var1^) shl PSGetInt(Var2, var2type);
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) shl PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) shl tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      6: begin { SHR }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) shr PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) shr PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) shr PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) shr PSGetInt(Var2, var2type);
            btU32: tbtU32(var1^) := tbtU32(var1^) shr PSGetUInt(Var2, var2type);
            btS32: tbts32(var1^) := tbts32(var1^) shr PSGetInt(Var2, var2type);
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) shr PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) shr tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      7: begin { AND }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) and PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) and PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) and PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) and PSGetInt(Var2, var2type);
            btU32: tbtU32(var1^) := tbtU32(var1^) and PSGetUInt(Var2, var2type);
            btS32: tbts32(var1^) := tbts32(var1^) and PSGetInt(Var2, var2type);
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) and PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) and tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      8: begin { OR }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) or PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) or PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) or PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) or PSGetInt(Var2, var2type);
            btU32: tbtU32(var1^) := tbtU32(var1^) or PSGetUInt(Var2, var2type);
            btS32: tbts32(var1^) := tbts32(var1^) or PSGetInt(Var2, var2type);
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) or PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) or tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      9: begin { XOR }
          case var1Type.BaseType of
            btU8: tbtU8(var1^) := tbtU8(var1^) xor PSGetUInt(Var2, var2type);
            btS8: tbts8(var1^) := tbts8(var1^) xor PSGetInt(Var2, var2type);
            btU16: tbtU16(var1^) := tbtU16(var1^) xor PSGetUInt(Var2, var2type);
            btS16: tbts16(var1^) := tbts16(var1^) xor PSGetInt(Var2, var2type);
            btU32: tbtU32(var1^) := tbtU32(var1^) xor PSGetUInt(Var2, var2type);
            btS32: tbts32(var1^) := tbts32(var1^) xor PSGetInt(Var2, var2type);
           {$IFNDEF PS_NOINT64}
            btS64: tbts64(var1^) := tbts64(var1^) xor PSGetInt64(var2, var2type);
           {$ENDIF}
            btVariant:
              begin
                if not IntPIFVariantToVariant(var2, var2type, tvar) then
                begin
                  Result := false;
                end else
                  Variant(var1^) := Variant(var1^) xor tvar;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
      10:
        begin // as
          case var1Type.BaseType of
            btClass:
              begin
                if var2type.BaseType <> btU32 then
                  Result := False
                else
                begin
                  var2type := FTypes[tbtu32(var2^)];
                  if (var2type = nil) or (var2type.BaseType <> btClass) then
                    Result := false
                  else
                  begin
                    if not Class_IS(Self, TObject(var1^), var2type) then
                      Result := false
                  end;
                end;
              end;
          else begin
              CMD_Err(erTypeMismatch);
              exit;
            end;
          end;
          if not Result then begin
            CMD_Err(erTypeMismatch);
            exit;
          end;
        end;
    else begin
        Result := False;
        CMD_Err(erInvalidOpcodeParameter);
        exit;
      end;
    end;
  except
    {$IFDEF DELPHI6UP}
    Tmp := AcquireExceptionObject;
    {$ELSE}
    if RaiseList <> nil then
    begin
      Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
      PRaiseFrame(RaiseList)^.ExceptObject := nil;
    end else
      Tmp := nil;
    {$ENDIF}
    if Tmp <> nil then
    begin
      if Tmp is EPSException then
      begin
        Result := False;
        ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
        exit;
      end else
      if Tmp is EDivByZero then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EZeroDivide then
      begin
        Result := False;
        CMD_Err3(erDivideByZero, '', Tmp);
        Exit;
      end;
      if Tmp is EMathError then
      begin
        Result := False;
        CMD_Err3(erMathError, '', Tmp);
        Exit;
      end;
    end;
    if (tmp <> nil) and (Tmp is Exception) then
      CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp)
    else
      CMD_Err3(erException, '', Tmp);
    Result := False;
  end;
end;

function TPSExec.ReadVariable(var Dest: TPSResultData; UsePointer: Boolean): Boolean;
var
  VarType: Cardinal;
  Param: Cardinal;
  Tmp: PIfVariant;
  at: TPSTypeRec;

begin
  if FCurrentPosition + 4 >= FDataLength then
  begin
    CMD_Err(erOutOfRange); // Error
    Result := False;
    exit;
  end;
  VarType := FData^[FCurrentPosition];
  Inc(FCurrentPosition);
  {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
  Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
  {$else}
  Param := Cardinal((@FData^[FCurrentPosition])^);
  {$endif}
  Inc(FCurrentPosition, 4);
  case VarType of
    0:
      begin
        Dest.FreeType := vtNone;
        if Param < PSAddrNegativeStackStart then
        begin
          if Param >= Cardinal(FGlobalVars.Count) then
          begin
            CMD_Err(erOutOfGlobalVarsRange);
            Result := False;
            exit;
          end;
          Tmp := FGlobalVars.Data[param];
        end else
        begin
          Param := Cardinal(Longint(-PSAddrStackStart) +
            Longint(FCurrStackBase) + Longint(Param));
          if Param >= Cardinal(FStack.Count) then
          begin
            CMD_Err(erOutOfGlobalVarsRange);
            Result := False;
            exit;
          end;
          Tmp := FStack.Data[param];
        end;
        if (UsePointer) and (Tmp.FType.BaseType = btPointer) then
        begin
          Dest.aType := PPSVariantPointer(Tmp).DestType;
          Dest.P := PPSVariantPointer(Tmp).DataDest;
          if Dest.P = nil then
          begin
            Cmd_Err(erNullPointerException);
            Result := False;
            exit;
          end;
        end else
        begin
          Dest.aType := PPSVariantData(Tmp).vi.FType;
          Dest.P := @PPSVariantData(Tmp).Data;
        end;
      end;
    1: begin
        if Param >= FTypes.Count then
        begin
          CMD_Err(erInvalidType);
          Result := False;
          exit;
        end;
        at := FTypes.Data^[Param];
        Param := FTempVars.FLength;
        FTempVars.FLength := Cardinal(Longint(Param) + Longint(at.RealSize) + Longint(RTTISize + 3)) and not 3;
        if FTempVars.FLength > FTempVars.FCapacity then FtempVars.AdjustLength;
        Tmp := Pointer(IPointer(FtempVars.FDataPtr) + IPointer(Param));

        if Cardinal(FTempVars.FCount) >= Cardinal(FTempVars.FCapacity) then
        begin
          Inc(FTempVars.FCapacity, FCapacityInc);// := FCount + 1;
          ReAllocMem(FTempVars.FData, FTempVars.FCapacity shl 2);
        end;
        FTempVars.FData[FTempVars.FCount] := Tmp; // Instead of SetItem
        Inc(FTempVars.FCount);
      {$IFNDEF PS_NOSMARTLIST}
        Inc(FTempVars.FCheckCount);
        if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
      {$ENDIF}


        Tmp.FType := at;
        Dest.P := @PPSVariantData(Tmp).Data;
        Dest.aType := tmp.FType;
        dest.FreeType := vtTempVar;
        case Dest.aType.BaseType of
          btSet:
            begin
              if not ReadData(Dest.P^, TPSTypeRec_Set(Dest.aType).aByteSize) then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
            end;
          bts8, btchar, btU8:
            begin
              if FCurrentPosition >= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
              tbtu8(dest.p^) := FData^[FCurrentPosition];
              Inc(FCurrentPosition);
            end;
          bts16, {$IFNDEF PS_NOWIDESTRING}btwidechar,{$ENDIF} btU16:
            begin
              if FCurrentPosition + 1>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtu16(dest.p^) := unaligned(tbtu16((@FData^[FCurrentPosition])^));
	      {$else}
              tbtu16(dest.p^) := tbtu16((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 2);
            end;
          bts32, btU32:
            begin
              if FCurrentPosition + 3>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtu32(dest.p^) := unaligned(tbtu32((@FData^[FCurrentPosition])^));
	      {$else}
              tbtu32(dest.p^) := tbtu32((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
            end;
          btProcPtr:
            begin
              if FCurrentPosition + 3>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtu32(dest.p^) := unaligned(tbtu32((@FData^[FCurrentPosition])^));
	      {$else}
              tbtu32(dest.p^) := tbtu32((@FData^[FCurrentPosition])^);
	      {$endif}
              tbtu32(Pointer(IPointer(dest.p)+PointerSize)^) := 0;
              tbtu32(Pointer(IPointer(dest.p)+PointerSize)^) := 0;
              Inc(FCurrentPosition, 4);
            end;
          {$IFNDEF PS_NOINT64}
          bts64:
            begin
              if FCurrentPosition + 7>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbts64(dest.p^) := unaligned(tbts64((@FData^[FCurrentPosition])^));
	      {$else}
              tbts64(dest.p^) := tbts64((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 8);
            end;
          {$ENDIF}
          btSingle:
            begin
              if FCurrentPosition + (Sizeof(Single)-1)>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtsingle(dest.p^) := unaligned(tbtsingle((@FData^[FCurrentPosition])^));
	      {$else}
              tbtsingle(dest.p^) := tbtsingle((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, Sizeof(Single));
            end;
          btDouble:
            begin
              if FCurrentPosition + (Sizeof(Double)-1)>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtdouble(dest.p^) := unaligned(tbtdouble((@FData^[FCurrentPosition])^));
	      {$else}
              tbtdouble(dest.p^) := tbtdouble((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, Sizeof(double));
            end;

          btExtended:
            begin
              if FCurrentPosition + (sizeof(Extended)-1)>= FDataLength then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              tbtextended(dest.p^) := unaligned(tbtextended((@FData^[FCurrentPosition])^));
	      {$else}
              tbtextended(dest.p^) := tbtextended((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, sizeof(Extended));
            end;
          btPchar, btString:
          begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              Param := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              Pointer(Dest.P^) := nil;
              SetLength(tbtstring(Dest.P^), Param);
              if not ReadData(tbtstring(Dest.P^)[1], Param) then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
            end;
          {$IFNDEF PS_NOWIDESTRING}
          btWidestring:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              Param := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              Pointer(Dest.P^) := nil;
              SetLength(tbtwidestring(Dest.P^), Param);
              if not ReadData(tbtwidestring(Dest.P^)[1], Param*2) then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
            end;
          btUnicodeString:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              Param := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              Pointer(Dest.P^) := nil;
              SetLength(tbtUnicodestring(Dest.P^), Param);
              if not ReadData(tbtUnicodestring(Dest.P^)[1], Param*2) then
              begin
                CMD_Err(erOutOfRange);
                FTempVars.Pop;
                Result := False;
                exit;
              end;
            end;
          {$ENDIF}
        else begin
            CMD_Err(erInvalidType);
            FTempVars.Pop;
            Result := False;
            exit;
          end;
        end;
      end;
    2:
      begin
        Dest.FreeType := vtNone;
        if Param < PSAddrNegativeStackStart then begin
          if Param >= Cardinal(FGlobalVars.Count) then
          begin
            CMD_Err(erOutOfGlobalVarsRange);
            Result := False;
            exit;
          end;
          Tmp := FGlobalVars.Data[param];
        end
        else begin
          Param := Cardinal(Longint(-PSAddrStackStart) + Longint(FCurrStackBase) + Longint(Param));
          if Param >= Cardinal(FStack.Count) then
          begin
            CMD_Err(erOutOfStackRange);
            Result := False;
            exit;
          end;
          Tmp := FStack.Data[param];
        end;
        if Tmp.FType.BaseType = btPointer then
        begin
          Dest.aType := PPSVariantPointer(Tmp).DestType;
          Dest.P := PPSVariantPointer(Tmp).DataDest;
          if Dest.P = nil then
          begin
            Cmd_Err(erNullPointerException);
            Result := False;
            exit;
          end;
        end else
        begin
          Dest.aType := PPSVariantData(Tmp).vi.FType;
          Dest.P := @PPSVariantData(Tmp).Data;
        end;
        if FCurrentPosition + 3 >= FDataLength then
        begin
          CMD_Err(erOutOfRange);
          Result := False;
          exit;
        end;
	{$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
        Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	{$else}
        Param := Cardinal((@FData^[FCurrentPosition])^);
	{$endif}
        Inc(FCurrentPosition, 4);
        case Dest.aType.BaseType of
          btRecord:
            begin
              if Param > Cardinal(TPSTypeRec_Record(Dest.aType).FFieldTypes.Count) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P) + IPointer(TPSTypeRec_Record(Dest.aType).RealFieldOffsets[Param]));
              Dest.aType := TPSTypeRec_Record(Dest.aType).FieldTypes[Param];
            end;
          btArray:
            begin
              if Param >= Cardinal(PSDynArrayGetLength(Pointer(Dest.P^), dest.aType)) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P^) + (Param * TPSTypeRec_Array(Dest.aType).FArrayType.RealSize));
              Dest.aType := TPSTypeRec_Array(dest.aType).ArrayType;
            end;
          btStaticArray:
            begin
              if Param >= Cardinal(TPSTypeRec_StaticArray(Dest.aType).Size) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P) + (Param * TPSTypeRec_Array(Dest.aType).FArrayType.RealSize));
              Dest.aType := TPSTypeRec_Array(dest.aType).ArrayType;
            end;
        else
          CMD_Err(erInvalidType);
          Result := False;
          exit;
        end;

        if UsePointer and (Dest.aType.BaseType = btPointer) then
        begin
          Dest.aType := TPSTypeRec(Pointer(IPointer(Dest.p)+PointerSize)^);
          Dest.P := Pointer(Dest.p^);
          if Dest.P = nil then
          begin
            Cmd_Err(erNullPointerException);
            Result := False;
            exit;
          end;
        end;
      end;
    3:
      begin
        Dest.FreeType := vtNone;
        if Param < PSAddrNegativeStackStart then begin
          if Param >= Cardinal(FGlobalVars.Count) then
          begin
            CMD_Err(erOutOfGlobalVarsRange);
            Result := False;
            exit;
          end;
          Tmp := FGlobalVars.Data[param];
        end
        else begin
          Param := Cardinal(Longint(-PSAddrStackStart) + Longint(FCurrStackBase) + Longint(Param));
          if Param >= Cardinal(FStack.Count) then
          begin
            CMD_Err(erOutOfStackRange);
            Result := False;
            exit;
          end;
          Tmp := FStack.Data[param];
        end;
        if (Tmp.FType.BaseType = btPointer) then
        begin
          Dest.aType := PPSVariantPointer(Tmp).DestType;
          Dest.P := PPSVariantPointer(Tmp).DataDest;
          if Dest.P = nil then
          begin
            Cmd_Err(erNullPointerException);
            Result := False;
            exit;
          end;
        end else
        begin
          Dest.aType := PPSVariantData(Tmp).vi.FType;
          Dest.P := @PPSVariantData(Tmp).Data;
        end;
	{$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
        Param := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	{$else}
        Param := Cardinal((@FData^[FCurrentPosition])^);
	{$endif}
        Inc(FCurrentPosition, 4);
        if Param < PSAddrNegativeStackStart then
        begin
          if Param >= Cardinal(FGlobalVars.Count) then
          begin
            CMD_Err(erOutOfGlobalVarsRange);
            Result := false;
            exit;
          end;
          Tmp := FGlobalVars[Param];
        end
        else begin
          Param := Cardinal(Longint(-PSAddrStackStart) + Longint(FCurrStackBase) + Longint(Param));
          if Cardinal(Param) >= Cardinal(FStack.Count) then
          begin
            CMD_Err(erOutOfStackRange);
            Result := false;
            exit;
          end;
          Tmp := FStack[Param];
        end;
        case Tmp.FType.BaseType of
          btu8: Param := PPSVariantU8(Tmp).Data;
          bts8: Param := PPSVariants8(Tmp).Data;
          btu16: Param := PPSVariantU16(Tmp).Data;
          bts16: Param := PPSVariants16(Tmp).Data;
          btu32: Param := PPSVariantU32(Tmp).Data;
          bts32: Param := PPSVariants32(Tmp).Data;
          btPointer:
            begin
              if PPSVariantPointer(tmp).DestType <> nil then
              begin
                case PPSVariantPointer(tmp).DestType.BaseType of
                  btu8: Param := tbtu8(PPSVariantPointer(tmp).DataDest^);
                  bts8: Param := tbts8(PPSVariantPointer(tmp).DataDest^);
                  btu16: Param := tbtu16(PPSVariantPointer(tmp).DataDest^);
                  bts16: Param := tbts16(PPSVariantPointer(tmp).DataDest^);
                  btu32, btProcPtr: Param := tbtu32(PPSVariantPointer(tmp).DataDest^);
                  bts32: Param := tbts32(PPSVariantPointer(tmp).DataDest^);
                  else
                    begin
                      CMD_Err(ErTypeMismatch);
                      Result := false;
                      exit;
                    end;
                end;
              end else
              begin
                CMD_Err(ErTypeMismatch);
                Result := false;
                exit;
              end;
            end;
        else
          CMD_Err(ErTypeMismatch);
          Result := false;
          exit;
        end;
        case Dest.aType.BaseType of
          btRecord:
            begin
              if Param > Cardinal(TPSTypeRec_Record(Dest.aType).FFieldTypes.Count) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P) + IPointer(TPSTypeRec_Record(Dest.aType).RealFieldOffsets[Param]));
              Dest.aType := TPSTypeRec_Record(Dest.aType).FieldTypes[Param];
            end;
          btArray:
            begin
              if Cardinal(Param) >= Cardinal(PSDynArrayGetLength(Pointer(Dest.P^), dest.aType)) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P^) + (Param * TPSTypeRec_Array(Dest.aType).FArrayType.RealSize));
              Dest.aType := TPSTypeRec_Array(dest.aType).ArrayType;
            end;
          btStaticArray:
            begin
              if Param >= Cardinal(TPSTypeRec_StaticArray(Dest.aType).Size) then
              begin
                CMD_Err(erOutOfRange);
                Result := False;
                exit;
              end;
              Dest.P := Pointer(IPointer(Dest.P) + (Param * TPSTypeRec_Array(Dest.aType).FArrayType.RealSize));
              Dest.aType := TPSTypeRec_Array(dest.aType).ArrayType;
            end;
        else
          CMD_Err(erInvalidType);
          Result := False;
          exit;
        end;
        if UsePointer and (Dest.aType.BaseType = btPointer) then
        begin
          Dest.aType := TPSTypeRec(Pointer(IPointer(Dest.p)+PointerSize)^);
          Dest.P := Pointer(Dest.p^);
          if Dest.P = nil then
          begin
            Cmd_Err(erNullPointerException);
            Result := False;
            exit;
          end;
        end;
      end;
  else
    begin
      Result := False;
      exit;
    end;
  end;
  Result := true;
end;

function TPSExec.DoMinus(Dta: Pointer; aType: TPSTypeRec): Boolean;
begin
  case atype.BaseType of
    btU8: tbtu8(dta^) := -tbtu8(dta^);
    btU16: tbtu16(dta^) := -tbtu16(dta^);
    btU32: tbtu32(dta^) := -tbtu32(dta^);
    btS8: tbts8(dta^) := -tbts8(dta^);
    btS16: tbts16(dta^) := -tbts16(dta^);
    btS32: tbts32(dta^) := -tbts32(dta^);
    {$IFNDEF PS_NOINT64}
    bts64: tbts64(dta^) := -tbts64(dta^);
    {$ENDIF}
    btSingle: tbtsingle(dta^) := -tbtsingle(dta^);
    btDouble: tbtdouble(dta^) := -tbtdouble(dta^);
    btExtended: tbtextended(dta^) := -tbtextended(dta^);
    btCurrency: tbtcurrency(dta^) := -tbtcurrency(dta^);
    btVariant:
      begin
        try
          Variant(dta^) := - Variant(dta^);
        except
          CMD_Err(erTypeMismatch);
          Result := False;
          exit;
        end;
      end;
  else
    begin
      CMD_Err(erTypeMismatch);
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;

function TPSExec.DoBooleanNot(Dta: Pointer; aType: TPSTypeRec): Boolean;
begin
  case aType.BaseType of
    btU8: tbtu8(dta^) := tbtu8(tbtu8(dta^) = 0);
    btU16: tbtu16(dta^) := tbtu16(tbtu16(dta^) = 0);
    btU32: tbtu32(dta^) := tbtu32(tbtu32(dta^) = 0);
    btS8: tbts8(dta^) := tbts8(tbts8(dta^) = 0);
    btS16: tbts16(dta^) := tbts16(tbts16(dta^) = 0);
    btS32: tbts32(dta^) := tbts32(tbts32(dta^) = 0);
    {$IFNDEF PS_NOINT64}
    bts64: tbts64(dta^) := tbts64(tbts64(dta^) = 0);
    {$ENDIF}
    btVariant:
      begin
        try
          Variant(dta^) := Variant(dta^) = 0;
        except
          CMD_Err(erTypeMismatch);
          Result := False;
          exit;
        end;
      end;
  else
    begin
      CMD_Err(erTypeMismatch);
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;


procedure TPSExec.Stop;
begin
  if FStatus = isRunning then
    FStatus := isLoaded
  else if FStatus = isPaused then begin
    FStatus := isLoaded;
    FStack.Clear;
    FTempVars.Clear;
  end;
end;


function TPSExec.ReadLong(var b: Cardinal): Boolean;
begin
  if FCurrentPosition + 3 < FDataLength then begin
    {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
    b := unaligned(Cardinal((@FData^[FCurrentPosition])^));
    {$else}
    b := Cardinal((@FData^[FCurrentPosition])^);
    {$endif}
    Inc(FCurrentPosition, 4);
    Result := True;
  end
  else
    Result := False;
end;

function TPSExec.RunProcP(const Params: array of Variant; const Procno: Cardinal): Variant;
var
  ParamList: TPSList;
  ct: PIFTypeRec;
  pvar: PPSVariant;
  res, s: tbtString;
  Proc: TPSInternalProcRec;
  i: Longint;
begin
  if ProcNo >= FProcs.Count then raise Exception.Create(RPS_UnknownProcedure);
  Proc := GetProcNo(ProcNo) as TPSInternalProcRec;
  ParamList := TPSList.Create;
  try
    s := Proc.ExportDecl;
    res := grfw(s);
    i := High(Params);
    while s <> '' do
    begin
      if i < 0 then raise Exception.Create(RPS_NotEnoughParameters);
      ct := FTypes[StrToInt(copy(GRLW(s), 2, MaxInt))];
      if ct = nil then raise Exception.Create(RPS_InvalidParameter);
      pvar := CreateHeapVariant(ct);
      ParamList.Add(pvar);

      if not VariantToPIFVariant(Self, Params[i], pvar) then raise Exception.Create(RPS_InvalidParameter);

      Dec(i);
    end;
    if I > -1 then raise Exception.Create(RPS_TooManyParameters);
    if res <> '-1' then
    begin
      pvar := CreateHeapVariant(FTypes[StrToInt(res)]);
      ParamList.Add(pvar);
    end else
      pvar := nil;

    RunProc(ParamList, ProcNo);

    RaiseCurrentException;

    if pvar <> nil then
    begin
      PIFVariantToVariant(PVar, Result);
    end else
      Result := Null;
  finally
    FreePIFVariantList(ParamList);
  end;
end;
function TPSExec.RunProcPVar(var Params: array of Variant; const Procno: Cardinal): Variant;
var
  ParamList: TPSList;
  ct: PIFTypeRec;
  pvar: PPSVariant;
  res, s: tbtString;
  Proc: TPSInternalProcRec;
  i: Longint;
begin
  if ProcNo >= FProcs.Count then raise Exception.Create(RPS_UnknownProcedure);
  Proc := GetProcNo(ProcNo) as TPSInternalProcRec;
  ParamList := TPSList.Create;
  try
    s := Proc.ExportDecl;
    res := grfw(s);
    i := High(Params);
    while s <> '' do
    begin
      if i < 0 then raise Exception.Create(RPS_NotEnoughParameters);
      ct := FTypes[StrToInt(copy(GRLW(s), 2, MaxInt))];
      if ct = nil then raise Exception.Create(RPS_InvalidParameter);
      pvar := CreateHeapVariant(ct);
      ParamList.Add(pvar);

      if not VariantToPIFVariant(Self, Params[i], pvar) then raise Exception.Create(RPS_InvalidParameter);

      Dec(i);
    end;
    if I > -1 then raise Exception.Create(RPS_TooManyParameters);
    if res <> '-1' then
    begin
      pvar := CreateHeapVariant(FTypes[StrToInt(res)]);
      ParamList.Add(pvar);
    end else
      pvar := nil;

    RunProc(ParamList, ProcNo);

    RaiseCurrentException;

    for i := 0 to Length(Params) - 1 do
    PIFVariantToVariant(ParamList[i],
                        Params[(Length(Params) - 1) - i]);

    if pvar <> nil then
    begin
      PIFVariantToVariant(PVar, Result);
    end else
      Result := Null;
  finally
    FreePIFVariantList(ParamList);
  end;
end;

function TPSExec.RunProcPN(const Params: array of Variant; const ProcName: tbtString): Variant;
var
  ProcNo: Cardinal;
begin
  ProcNo := GetProc(ProcName);
  if ProcNo = InvalidVal then
    raise Exception.Create(RPS_UnknownProcedure);
  Result := RunProcP(Params, ProcNo);
end;


function TPSExec.RunProc(Params: TPSList; ProcNo: Cardinal): Boolean;
var
  I, I2: Integer;
  vnew, Vd: PIfVariant;
  Cp: TPSInternalProcRec;
  oldStatus: TPSStatus;
  tmp: TObject;
begin
  if FStatus <> isNotLoaded then begin
    if ProcNo >= FProcs.Count then begin
      CMD_Err(erOutOfProcRange);
      Result := False;
      exit;
    end;
    if Params <> nil then
    begin
      for I := 0 to Params.Count - 1 do
      begin
        vd := Params[I];
        if vd = nil then
        begin
          Result := False;
          exit;
        end;
        vnew := FStack.PushType(FindType2(btPointer));
        if vd.FType.BaseType = btPointer then
        begin
          PPSVariantPointer(vnew).DestType := PPSVariantPointer(vd).DestType;
          PPSVariantPointer(vnew).DataDest := PPSVariantPointer(vd).DataDest;
        end else begin
          PPSVariantPointer(vnew).DestType := vd.FType;
          PPSVariantPointer(vnew).DataDest := @PPSVariantData(vd).Data;
        end;
      end;
    end;
    I := FStack.Count;
    Cp := FCurrProc;
    oldStatus := FStatus;
    if TPSProcRec(FProcs.Data^[ProcNo]).ClassType <> TPSExternalProcRec then
    begin
      vd := FStack.PushType(FReturnAddressType);
      PPSVariantReturnAddress(vd).Addr.ProcNo := nil;
      PPSVariantReturnAddress(vd).Addr.Position := FCurrentPosition;
      PPSVariantReturnAddress(vd).Addr.StackBase := FCurrStackBase;
      FCurrStackBase := FStack.Count - 1;
      FCurrProc := FProcs.Data^[ProcNo];
      FData := FCurrProc.Data;
      FDataLength := FCurrProc.Length;
      FCurrentPosition := 0;
      FStatus := isPaused;
      Result := RunScript;
    end else
    begin
      try
        Result := TPSExternalProcRec(FProcs.Data^[ProcNo]).ProcPtr(Self, TPSExternalProcRec(FProcs.Data^[ProcNo]), FGlobalVars, FStack);
        if not Result then
        begin
          if ExEx = erNoError then
            CMD_Err(erCouldNotCallProc);
        end;
      except
        {$IFDEF DELPHI6UP}
        Tmp := AcquireExceptionObject;
        {$ELSE}
        if RaiseList <> nil then
        begin
          Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
          PRaiseFrame(RaiseList)^.ExceptObject := nil;
        end else
          Tmp := nil;
        {$ENDIF}
        if Tmp <> nil then
        begin
          if Tmp is EPSException then
          begin
            Result := False;
            ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
            exit;
          end else
          if Tmp is EDivByZero then
          begin
            Result := False;
            CMD_Err3(erDivideByZero, '', Tmp);
            Exit;
          end;
          if Tmp is EZeroDivide then
          begin
            Result := False;
            CMD_Err3(erDivideByZero, '', Tmp);
            Exit;
          end;
          if Tmp is EMathError then
          begin
            Result := False;
            CMD_Err3(erMathError, '', Tmp);
            Exit;
          end;
        end;
        if (Tmp <> nil) and (Tmp is Exception) then
          CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp) else
          CMD_Err3(erException, '', Tmp);
        Result := false;
        exit;
      end;
    end;
    if Cardinal(FStack.Count) > Cardinal(I) then
    begin
      vd := FStack[I];
      if (vd <> nil) and (vd.FType = FReturnAddressType) then
      begin
        for i2 := FStack.Count - 1 downto I + 1 do
          FStack.Pop;
        FCurrentPosition := PPSVariantReturnAddress(vd).Addr.Position;
        FCurrStackBase := PPSVariantReturnAddress(vd).Addr.StackBase;
        FStack.Pop;
      end;
    end;
    if Params <> nil then
    begin
      for I := Params.Count - 1 downto 0 do
      begin
        if FStack.Count = 0 then
          Break
        else
          FStack.Pop;
      end;
    end;
    FStatus := oldStatus;
    FCurrProc := Cp;
    if FCurrProc <> nil then
    begin
      FData := FCurrProc.Data;
      FDataLength := FCurrProc.Length;
    end;
  end else begin
    Result := False;
  end;
end;


function TPSExec.FindType2(BaseType: TPSBaseType): PIFTypeRec;
var
  l: Cardinal;
begin
  FindType2 := FindType(0, BaseType, l);

end;

function TPSExec.FindType(StartAt: Cardinal; BaseType: TPSBaseType; var l: Cardinal): PIFTypeRec;
var
  I: Integer;
  n: PIFTypeRec;
begin
  for I := StartAt to FTypes.Count - 1 do begin
    n := FTypes[I];
    if n.BaseType = BaseType then begin
      l := I;
      Result := n;
      exit;
    end;
  end;
  Result := nil;
end;

function TPSExec.GetTypeNo(l: Cardinal): PIFTypeRec;
begin
  Result := FTypes[l];
end;

function TPSExec.GetProc(const Name: tbtString): Cardinal;
var
  MM,
    I: Longint;
  n: PIFProcRec;
  s: tbtString;
begin
  s := FastUpperCase(name);
  MM := MakeHash(s);
  for I := FProcs.Count - 1 downto 0 do begin
    n := FProcs.Data^[I];
    if (n.ClassType = TPSInternalProcRec) and (TPSInternalProcRec(n).ExportNameHash = MM) and (TPSInternalProcRec(n).ExportName = s) then begin
      Result := I;
      exit;
    end else if (n.ClassType = TPSExternalProcRec) and (TPSExternalProcRec(n).Name = s) then
    begin
      Result := I;
      exit;
    end;
  end;
  Result := InvalidVal;
end;

function TPSExec.GetType(const Name: tbtString): Cardinal;
var
  MM,
    I: Longint;
  n: PIFTypeRec;
  s: tbtString;
begin
  s := FastUpperCase(name);
  MM := MakeHash(s);
  for I := 0 to FTypes.Count - 1 do begin
    n := FTypes.Data^[I];
    if (Length(n.ExportName) <> 0) and (n.ExportNameHash = MM) and (n.ExportName = s) then begin
      Result := I;
      exit;
    end;
  end;
  Result := InvalidVal;
end;


procedure TPSExec.AddResource(Proc, P: Pointer);
var
  Temp: PPSResource;
begin
  New(Temp);
  Temp^.Proc := Proc;
  Temp^.P := p;
  FResources.Add(temp);
end;

procedure TPSExec.DeleteResource(P: Pointer);
var
  i: Longint;
begin
  for i := Longint(FResources.Count) -1 downto 0 do
  begin
    if PPSResource(FResources[I])^.P = P then
    begin
      FResources.Delete(I);
      exit;
    end;
  end;
end;

function TPSExec.FindProcResource(Proc: Pointer): Pointer;
var
  I: Longint;
  temp: PPSResource;
begin
  for i := Longint(FResources.Count) -1 downto 0 do
  begin
    temp := FResources[I];
    if temp^.Proc = proc then
    begin
      Result := Temp^.P;
      exit;
    end;
  end;
  Result := nil;
end;

function TPSExec.IsValidResource(Proc, P: Pointer): Boolean;
var
  i: Longint;
  temp: PPSResource;
begin
  for i := 0 to Longint(FResources.Count) -1 do
  begin
    temp := FResources[i];
    if temp^.p = p then begin
      result := temp^.Proc = Proc;
      exit;
    end;
  end;
  result := false;
end;

function TPSExec.FindProcResource2(Proc: Pointer;
  var StartAt: Longint): Pointer;
var
  I: Longint;
  temp: PPSResource;
begin
  if StartAt > longint(FResources.Count) -1 then
    StartAt := longint(FResources.Count) -1;
  for i := StartAt downto 0 do
  begin
    temp := FResources[I];
    if temp^.Proc = proc then
    begin
      Result := Temp^.P;
      StartAt := i -1;
      exit;
    end;
  end;
  StartAt := -1;
  Result := nil;
end;

procedure TPSExec.RunLine;
begin
  if @FOnRunLine <> nil then
    FOnRunLine(Self);
end;

procedure TPSExec.CMD_Err3(EC: TPSError; const Param: tbtString; ExObject: TObject);
var
  l: Longint;
  C: Cardinal;
begin
  C := InvalidVal;
  for l := FProcs.Count - 1 downto 0 do begin
    if FProcs.Data^[l] = FCurrProc then begin
      C := l;
      break;
    end;
  end;
  if @FOnException <> nil then
    FOnException(Self, Ec, Param, ExObject, C, FCurrentPosition);
  ExceptionProc(C, FCurrentPosition, EC, Param, ExObject);
end;

procedure TPSExec.AddSpecialProcImport(const FName: tbtString;
  P: TPSOnSpecialProcImport; Tag: Pointer);
var
  N: PSpecialProc;
begin
  New(n);
  n^.P := P;
  N^.Name := FName;
  n^.namehash := MakeHash(N^.Name);
  n^.Tag := Tag;
  FSpecialProcList.Add(n);
end;

function TPSExec.GetVar(const Name: tbtString): Cardinal;
var
  l: Longint;
  h: longint;
  s: tbtString;
  p: PPSExportedVar;
begin
  s := FastUpperCase(name);
  h := MakeHash(s);
  for l := FExportedVars.Count - 1 downto 0 do
  begin
    p := FexportedVars.Data^[L];
    if (p^.FNameHash = h) and(p^.FName=s) then
    begin
      Result := L;
      exit;
    end;
  end;
  Result := InvalidVal;
end;

function TPSExec.GetVarNo(C: Cardinal): PIFVariant;
begin
  Result := FGlobalVars[c];
end;

function TPSExec.GetVar2(const Name: tbtString): PIFVariant;
begin
  Result := GetVarNo(GetVar(Name));
end;

function TPSExec.GetProcNo(C: Cardinal): PIFProcRec;
begin
  Result := FProcs[c];
end;

function TPSExec.DoIntegerNot(Dta: Pointer; aType: TPSTypeRec): Boolean;
begin
  case aType.BaseType of
    btU8: tbtu8(dta^) := not tbtu8(dta^);
    btU16: tbtu16(dta^) := not tbtu16(dta^);
    btU32: tbtu32(dta^) := not tbtu32(dta^);
    btS8: tbts8(dta^) := not tbts8(dta^);
    btS16: tbts16(dta^) := not tbts16(dta^);
    btS32: tbts32(dta^) := not tbts32(dta^);
    {$IFNDEF PS_NOINT64}
    bts64: tbts64(dta^) := not tbts64(dta^);
    {$ENDIF}
    btVariant:
      begin
        try
          Variant(dta^) := not Variant(dta^);
        except
          CMD_Err(erTypeMismatch);
          Result := False;
          exit;
        end;
      end;
  else
    begin
      CMD_Err(erTypeMismatch);
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;

type
  TMyRunLine = procedure(Self: TPSExec);
  TPSRunLine = procedure of object;

function GetRunLine(FOnRunLine: TPSOnLineEvent; meth: TPSRunLine): TMyRunLine;
begin
  if (TMethod(Meth).Code = @TPSExec.RunLine) and (@FOnRunLine = nil) then
    Result := nil
  else
    Result := TMethod(Meth).Code;
end;

function TPSExec.RunScript: Boolean;
var
  CalcType: Cardinal;
  vd, vs, v3: TPSResultData;
  vtemp: PIFVariant;
  p: Cardinal;
  P2: Longint;
  u: PIFProcRec;
  Cmd: Cardinal;
  I: Longint;
  pp: TPSExceptionHandler;
  FExitPoint: Cardinal;
  FOldStatus: TPSStatus;
  Tmp: TObject;
  btemp: Boolean;
  CallRunline: TMyRunLine;
begin
  FExitPoint := InvalidVal;
  if FStatus = isLoaded then
  begin
    for i := FExceptionStack.Count -1 downto 0 do
    begin
      pp := FExceptionStack.Data[i];
      pp.Free;
    end;
    FExceptionStack.Clear;
  end;
  ExceptionProc(InvalidVal, InvalidVal, erNoError, '', nil);
  RunScript := True;
  FOldStatus := FStatus;
  case FStatus of
    isLoaded: begin
        if FMainProc = InvalidVal then
        begin
          RunScript := False;
          exit;
        end;
        FStatus := isRunning;
        FCurrProc := FProcs.Data^[FMainProc];
        if FCurrProc.ClassType = TPSExternalProcRec then begin
          CMD_Err(erNoMainProc);
          FStatus := isLoaded;
          exit;
        end;
        FData := FCurrProc.Data;
        FDataLength := FCurrProc.Length;
        FCurrStackBase := InvalidVal;
        FCurrentPosition := 0;
      end;
    isPaused: begin
        FStatus := isRunning;
      end;
  else begin
      RunScript := False;
      exit;
    end;
  end;
  CallRunLine := GetRunLine(FOnRunLine, Self.RunLine);
  repeat
    FStatus := isRunning;
//    Cmd := InvalidVal;
    while FStatus = isRunning do
    begin
      if @CallRunLine <> nil then CallRunLine(Self);
      if FCurrentPosition >= FDataLength then
      begin
        CMD_Err(erOutOfRange); // Error
        break;
      end;
//      if cmd <> invalidval then ProfilerExitProc(Cmd+1);
      cmd := FData^[FCurrentPosition];
//      ProfilerEnterProc(Cmd+1);
      Inc(FCurrentPosition);
        case Cmd of
          CM_A:
            begin
              if not ReadVariable(vd, True) then
                break;
              if vd.FreeType <> vtNone then
              begin
                if vd.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vd.P, vd.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;

                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if not ReadVariable(vs, True) then
                Break;
              // nx change end
{              if (vd.aType.BaseType = btClass) and (vs.aType.BaseType in [btS32]) then
                DWord(vd.P^):=Dword(vs.P^)
              else
              if (vd.aType.BaseType in [btS32]) and (vs.aType.BaseType = btClass) then
                DWord(vd.P^):=Dword(vs.P^)
              else}
              // nx change start
              if not SetVariantValue(vd.P, vs.P, vd.aType, vs.aType) then
              begin
                if vs.FreeType <> vtNone then
                begin
                  if vs.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vs.P, vs.aType);
                  p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                  Dec(FTempVars.FCount);
                  {$IFNDEF PS_NOSMARTLIST}
                  Inc(FTempVars.FCheckCount);
                  if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                  {$ENDIF}
                  FTempVars.FLength := P;
                  if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                end;
                Break;
              end;
              if vs.FreeType <> vtNone then
              begin
                if vs.aType.BaseType in NeedFinalization then
                FinalizeVariant(vs.P, vs.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
              end;
            end;
          CM_CA:
            begin
              if FCurrentPosition >= FDataLength then
              begin
                CMD_Err(erOutOfRange); // Error
                break;
              end;
              calctype := FData^[FCurrentPosition];
              Inc(FCurrentPosition);
              if not ReadVariable(vd, True) then
                break;
              if vd.FreeType <> vtNone then
              begin
                if vd.aType.BaseType in NeedFinalization then
                FinalizeVariant(vd.P, vd.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if not ReadVariable(vs, True) then
                Break;
              if not DoCalc(vd.P, vs.p, vd.aType, vs.aType, CalcType) then
              begin
                if vs.FreeType <> vtNone then
                begin
                  if vs.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vs.P, vs.aType);
                  p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                  Dec(FTempVars.FCount);
                  {$IFNDEF PS_NOSMARTLIST}
                  Inc(FTempVars.FCheckCount);
                  if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                  {$ENDIF}
                  FTempVars.FLength := P;
                  if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                end;
                Break;
              end;
              if vs.FreeType <> vtNone then
              begin
                if vs.aType.BaseType in NeedFinalization then
                FinalizeVariant(vs.P, vs.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
              end;
            end;
          CM_P:
            begin
              if not ReadVariable(vs, True) then
                Break;
              vtemp := FStack.PushType(vs.aType);
              vd.P := Pointer(IPointer(vtemp)+PointerSize);
              vd.aType := Pointer(vtemp^);
              vd.FreeType := vtNone;
              if not SetVariantValue(Vd.P, vs.P, vd.aType, vs.aType) then
              begin
                if vs.FreeType <> vtnone then
                begin
                  if vs.aType.BaseType in NeedFinalization then
                    FinalizeVariant(vs.P, vs.aType);
                  p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                  Dec(FTempVars.FCount);
                  {$IFNDEF PS_NOSMARTLIST}
                  Inc(FTempVars.FCheckCount);
                  if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                  {$ENDIF}
                  FTempVars.FLength := P;
                  if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                end;
                break;
              end;
              if vs.FreeType <> vtnone then
              begin
                if vs.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vs.P, vs.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
              end;
            end;
          CM_PV:
            begin
              if not ReadVariable(vs, True) then
                Break;
              if vs.FreeType <> vtnone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              vtemp := FStack.PushType(FindType2(btPointer));
              if vs.aType.BaseType = btPointer then
              begin
                PPSVariantPointer(vtemp).DataDest := Pointer(vs.p^);
                PPSVariantPointer(vtemp).DestType := Pointer(Pointer(IPointer(vs.P)+PointerSize)^);
                PPSVariantPointer(vtemp).FreeIt := False;
              end
              else
              begin
                PPSVariantPointer(vtemp).DataDest := vs.p;
                PPSVariantPointer(vtemp).DestType := vs.aType;
                PPSVariantPointer(vtemp).FreeIt := False;
              end;
            end;
          CM_PO: begin
              if FStack.Count = 0 then
              begin
                CMD_Err(erOutOfStackRange);
                break;
              end;
              vtemp := FStack.Data^[FStack.Count -1];
              if (vtemp = nil) or (vtemp.FType.BaseType = btReturnAddress) then
              begin
                CMD_Err(erOutOfStackRange);
                break;
              end;
              FStack.Pop;
(*              Dec(FStack.FCount);
              {$IFNDEF PS_NOSMARTLIST}
              Inc(FStack.FCheckCount);
              if FStack.FCheckCount > FMaxCheckCount then FStack.Recreate;
              {$ENDIF}
              FStack.FLength := Longint(IPointer(vtemp) - IPointer(FStack.DataPtr));
              if TPSTypeRec(vtemp^).BaseType in NeedFinalization then
                FinalizeVariant(Pointer(IPointer(vtemp)+PointerSize), Pointer(vtemp^));
              if ((FStack.FCapacity - FStack.FLength) shr 12) > 2 then FStack.AdjustLength;*)
            end;
          Cm_C: begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              if p >= FProcs.Count then begin
                CMD_Err(erOutOfProcRange);
                break;
              end;
              u := FProcs.Data^[p];
              if u.ClassType = TPSExternalProcRec then begin
                try
                  if not TPSExternalProcRec(u).ProcPtr(Self, TPSExternalProcRec(u), FGlobalVars, FStack) then begin
                    if ExEx = erNoError then
                      CMD_Err(erCouldNotCallProc);
                    Break;
                  end;
                except
                  {$IFDEF DELPHI6UP}
                  Tmp := AcquireExceptionObject;
                  {$ELSE}
                  if RaiseList <> nil then
                  begin
                    Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
                    PRaiseFrame(RaiseList)^.ExceptObject := nil;
                  end else
                    Tmp := nil;
                  {$ENDIF}
                  if Tmp <> nil then
                  begin
                    if Tmp is EPSException then
                    begin
                      ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
                      Break;
                    end else
                    if Tmp is EDivByZero then
                    begin
                      CMD_Err3(erDivideByZero, '', Tmp);
                      Break;
                    end;
                    if Tmp is EZeroDivide then
                    begin
                      CMD_Err3(erDivideByZero, '', Tmp);
                      Break;
                    end;
                    if Tmp is EMathError then
                    begin
                      CMD_Err3(erMathError, '', Tmp);
                      Break;
                    end;
                  end;
                  if (Tmp <> nil) and (Tmp is Exception) then
                    CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp) else
                    CMD_Err3(erException, '', Tmp);
                  Break;
                end;
              end
              else begin
                Vtemp := Fstack.PushType(FReturnAddressType);
                vd.P := Pointer(IPointer(VTemp)+PointerSize);
                vd.aType := pointer(vtemp^);
                vd.FreeType := vtNone;
                PPSVariantReturnAddress(vtemp).Addr.ProcNo := FCurrProc;
                PPSVariantReturnAddress(vtemp).Addr.Position := FCurrentPosition;
                PPSVariantReturnAddress(vtemp).Addr.StackBase := FCurrStackBase;

                FCurrStackBase := FStack.Count - 1;
                FCurrProc := TPSInternalProcRec(u);
                FData := FCurrProc.Data;
                FDataLength := FCurrProc.Length;
                FCurrentPosition := 0;
              end;
            end;
          CM_PG:
            begin
              FStack.Pop;
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              FCurrentPosition := FCurrentPosition + p;
            end;
          CM_P2G:
            begin
              FStack.Pop;
              FStack.Pop;
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              FCurrentPosition := FCurrentPosition + p;
            end;
          Cm_G:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              FCurrentPosition := FCurrentPosition + p;
            end;
          Cm_CG:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              btemp := true;
              if not ReadVariable(vs, btemp) then
                Break;
              case Vs.aType.BaseType of
                btU8: btemp := tbtu8(vs.p^) <> 0;
                btS8: btemp := tbts8(vs.p^) <> 0;
                btU16: btemp := tbtu16(vs.p^) <> 0;
                btS16: btemp := tbts16(vs.p^) <> 0;
                btU32: btemp := tbtu32(vs.p^) <> 0;
                btS32: btemp := tbts32(vs.p^) <> 0;
              else begin
                  CMD_Err(erInvalidType);
                  if vs.FreeType <> vtNone then
                    FTempVars.Pop;
                  break;
                end;
              end;
              if vs.FreeType <> vtNone then
                FTempVars.Pop;
              if btemp then
                FCurrentPosition := FCurrentPosition + p;
            end;
          Cm_CNG:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              btemp := true;
              if not ReadVariable(vs, BTemp) then
                Break;
              case Vs.aType.BaseType of
                btU8: btemp := tbtu8(vs.p^) = 0;
                btS8: btemp := tbts8(vs.p^) = 0;
                btU16: btemp := tbtu16(vs.p^) = 0;
                btS16: btemp := tbts16(vs.p^) = 0;
                btU32: btemp := tbtu32(vs.p^) = 0;
                btS32: btemp := tbts32(vs.p^) = 0;
              else begin
                  CMD_Err(erInvalidType);
                  if vs.FreeType <> vtNone then
                    FTempVars.Pop;
                  break;
                end;
              end;
              if vs.FreeType <> vtNone then
                FTempVars.Pop;
              if btemp then
                FCurrentPosition := FCurrentPosition + p;
            end;
          Cm_R: begin
              FExitPoint := FCurrentPosition -1;
              P2 := 0;
              if FExceptionStack.Count > 0 then
              begin
                pp := FExceptionStack.Data[FExceptionStack.Count -1];
                while (pp.BasePtr = FCurrStackBase) or ((pp.BasePtr > FCurrStackBase) and (pp.BasePtr <> InvalidVal)) do
                begin
                  if pp.StackSize < Cardinal(FStack.Count) then
                  begin
                    for p := Longint(FStack.count) -1 downto Longint(pp.StackSize) do
                      FStack.Pop
                  end;
                  FCurrStackBase := pp.BasePtr;
                  if pp.FinallyOffset <> InvalidVal then
                  begin
                    FCurrentPosition := pp.FinallyOffset;
                    pp.FinallyOffset := InvalidVal;
                    p2 := 1;
                    break;
                  end else if pp.Finally2Offset <> InvalidVal then
                  begin
                    FCurrentPosition := pp.Finally2Offset;
                    pp.Finally2Offset := InvalidVal;
                    p2 := 1;
                    break;
                  end else
                  begin
                    pp.Free;
                    FExceptionStack.DeleteLast;
                    if FExceptionStack.Count = 0 then break;
                    pp := FExceptionStack.Data[FExceptionStack.Count -1];
                  end;
                end;
              end;
              if p2 = 0 then
              begin
                FExitPoint := InvalidVal;
                if FCurrStackBase = InvalidVal then
                begin
                  FStatus := FOldStatus;
                  break;
                end;
                for P2 := FStack.Count - 1 downto FCurrStackBase + 1 do
                  FStack.Pop;
                if FCurrStackBase >= FStack.Count  then
                begin
                  FStatus := FOldStatus;
                  break;
                end;
                vtemp := FStack.Data[FCurrStackBase];
                FCurrProc := PPSVariantReturnAddress(vtemp).Addr.ProcNo;
                FCurrentPosition := PPSVariantReturnAddress(vtemp).Addr.Position;
                FCurrStackBase := PPSVariantReturnAddress(vtemp).Addr.StackBase;
                FStack.Pop;
                if FCurrProc = nil then begin
                  FStatus := FOldStatus;
                  break;
                end;
                FData := FCurrProc.Data;
                FDataLength := FCurrProc.Length;
              end;
            end;
          Cm_Pt: begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              if p > FTypes.Count then
              begin
                CMD_Err(erInvalidType);
                break;
              end;
              FStack.PushType(FTypes.Data^[p]);
            end;
          cm_bn:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.FreeType <> vtNone then
                FTempVars.Pop;
              if not DoBooleanNot(Vd.P, vd.aType) then
                break;
            end;
          cm_in:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.FreeType <> vtNone then
                FTempVars.Pop;
              if not DoIntegerNot(Vd.P, vd.aType) then
                break;
            end;
          cm_vm:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.FreeType <> vtNone then
                FTempVars.Pop;
              if not DoMinus(Vd.P, vd.aType) then
                break;
            end;
          cm_sf:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if FCurrentPosition >= FDataLength then
              begin
                CMD_Err(erOutOfRange); // Error
                if vd.FreeType <> vtNone then
                  FTempVars.Pop;
                break;
              end;
              p := FData^[FCurrentPosition];
              Inc(FCurrentPosition);
              case Vd.aType.BaseType of
                btU8: FJumpFlag := tbtu8(Vd.p^) <> 0;
                btS8: FJumpFlag := tbts8(Vd.p^) <> 0;
                btU16: FJumpFlag := tbtu16(Vd.p^) <> 0;
                btS16: FJumpFlag := tbts16(Vd.p^) <> 0;
                btU32: FJumpFlag := tbtu32(Vd.p^) <> 0;
                btS32: FJumpFlag := tbts32(Vd.p^) <> 0;
              else begin
                  CMD_Err(erInvalidType);
                  if vd.FreeType <> vtNone then
                    FTempVars.Pop;
                  break;
                end;
              end;
              if p <> 0 then
                FJumpFlag := not FJumpFlag;
              if vd.FreeType <> vtNone then
                FTempVars.Pop;
            end;
          cm_fg:
            begin
              if FCurrentPosition + 3 >= FDataLength then
              begin
                Cmd_Err(erOutOfRange);
                Break;
              end;
	      {$ifdef FPC_REQUIRES_PROPER_ALIGNMENT}
              p := unaligned(Cardinal((@FData^[FCurrentPosition])^));
	      {$else}
              p := Cardinal((@FData^[FCurrentPosition])^);
	      {$endif}
              Inc(FCurrentPosition, 4);
              if FJumpFlag then
                FCurrentPosition := FCurrentPosition + p;
            end;
          cm_puexh:
            begin
              pp := TPSExceptionHandler.Create;
              pp.CurrProc := FCurrProc;
              pp.BasePtr :=FCurrStackBase;
              pp.StackSize := FStack.Count;
              if not ReadLong(pp.FinallyOffset) then begin
                CMD_Err(erOutOfRange);
                pp.Free;
                Break;
              end;
              if not ReadLong(pp.ExceptOffset) then begin
                CMD_Err(erOutOfRange);
                pp.Free;
                Break;
              end;
              if not ReadLong(pp.Finally2Offset) then begin
                CMD_Err(erOutOfRange);
                pp.Free;
                Break;
              end;
              if not ReadLong(pp.EndOfBlock) then begin
                CMD_Err(erOutOfRange);
                pp.Free;
                Break;
              end;
              if pp.FinallyOffset <> InvalidVal then
                pp.FinallyOffset := pp.FinallyOffset + FCurrentPosition;
              if pp.ExceptOffset <> InvalidVal then
                pp.ExceptOffset := pp.ExceptOffset + FCurrentPosition;
              if pp.Finally2Offset <> InvalidVal then
                pp.Finally2Offset := pp.Finally2Offset + FCurrentPosition;
              if pp.EndOfBlock <> InvalidVal then
                pp.EndOfBlock := pp.EndOfBlock + FCurrentPosition;
              if ((pp.FinallyOffset <> InvalidVal) and (pp.FinallyOffset >= FDataLength)) or
                ((pp.ExceptOffset <> InvalidVal) and (pp.ExceptOffset >= FDataLength)) or
                ((pp.Finally2Offset <> InvalidVal) and (pp.Finally2Offset >= FDataLength)) or
                ((pp.EndOfBlock <> InvalidVal) and (pp.EndOfBlock >= FDataLength)) then
                begin
                  CMD_Err(ErOutOfRange);
                  pp.Free;
                  Break;
                end;
                FExceptionStack.Add(pp);
            end;
          cm_poexh:
            begin
              if FCurrentPosition >= FDataLength then
              begin
                CMD_Err(erOutOfRange); // Error
                break;
              end;
              p := FData^[FCurrentPosition];
              Inc(FCurrentPosition);
              case p of
                2:
                  begin
                    if (FExceptionStack.Count = 0) then
                    begin
                      cmd_err(ErOutOfRange);
                      Break;
                    end;
                    pp := FExceptionStack.Data^[FExceptionStack.Count -1];
                    if pp = nil then begin
                      cmd_err(ErOutOfRange);
                      Break;
                    end;
                    pp.ExceptOffset := InvalidVal;
                    if pp.Finally2Offset <> InvalidVal then
                    begin
                      FCurrentPosition := pp.Finally2Offset;
                      pp.Finally2Offset := InvalidVal;
                    end else begin
                      p := pp.EndOfBlock;
                      pp.Free;
                      FExceptionStack.DeleteLast;
                      if FExitPoint <> InvalidVal then
                      begin
                        FCurrentPosition := FExitPoint;
                      end else begin
                        FCurrentPosition := p;
                      end;
                    end;
                  end;
                0:
                  begin
                    pp := FExceptionStack.Data^[FExceptionStack.Count -1];
                    if pp = nil then begin
                      cmd_err(ErOutOfRange);
                      Break;
                    end;
                    if pp.FinallyOffset <> InvalidVal then
                    begin
                      FCurrentPosition := pp.FinallyOffset;
                      pp.FinallyOffset := InvalidVal;
                    end else if pp.Finally2Offset <> InvalidVal then
                    begin
                       FCurrentPosition := pp.Finally2Offset;
                       pp.ExceptOffset := InvalidVal;
                    end else begin
                      p := pp.EndOfBlock;
                      pp.Free;
                      FExceptionStack.DeleteLast;
                      if ExEx <> eNoError then
                      begin
                        Tmp := ExObject;
                        ExObject := nil;
                        ExceptionProc(ExProc, ExPos, ExEx, ExParam, Tmp);
                      end else
                      if FExitPoint <> InvalidVal then
                      begin
                        FCurrentPosition := FExitPoint;
                      end else begin
                        FCurrentPosition := p;
                      end;
                    end;
                  end;
                1:
                  begin
                    pp := FExceptionStack.Data^[FExceptionStack.Count -1];
                    if pp = nil then begin
                      cmd_err(ErOutOfRange);
                      Break;
                    end;
                    if (ExEx <> ENoError) and (pp.ExceptOffset <> InvalidVal) and (pp.ExceptOffset <> InvalidVal -1) then
                    begin
                      FCurrentPosition := pp.ExceptOffset;
                      pp.ExceptOffset := Cardinal(InvalidVal -1);
                      pp.ExceptionData := ExEx;
                      pp.ExceptionObject := ExObject;
                      pp.ExceptionParam := ExParam;
                      ExEx := ErNoError;
                      ExObject := nil;
                    end else if (pp.Finally2Offset <> InvalidVal) then
                    begin
                      FCurrentPosition := pp.Finally2Offset;
                      pp.Finally2Offset := InvalidVal;
                    end else begin
                      p := pp.EndOfBlock;
                      pp.Free;
                      FExceptionStack.DeleteLast;
                      if (ExEx <> eNoError) and (p <> InvalidVal) then
                      begin
                        Tmp := ExObject;
                        ExObject := nil;
                        ExceptionProc(ExProc, ExPos, ExEx, ExParam, Tmp);
                      end else
                      if FExitPoint <> InvalidVal then
                      begin
                        FCurrentPosition := FExitPoint;
                      end else begin
                        FCurrentPosition := p;
                      end;
                    end;
                  end;
                3:
                  begin
                    pp := FExceptionStack.Data^[FExceptionStack.Count -1];
                    if pp = nil then begin
                      cmd_err(ErOutOfRange);
                      Break;
                    end;
                    p := pp.EndOfBlock;
                    pp.Free;
                    FExceptionStack.DeleteLast;
                    if ExEx <> eNoError then
                    begin
                      Tmp := ExObject;
                      ExObject := nil;
                      ExceptionProc(ExProc, ExPos, ExEx, ExParam, Tmp);
                    end else
                    if FExitPoint <> InvalidVal then
                    begin
                      FCurrentPosition := FExitPoint;
                    end else begin
                      FCurrentPosition := p;
                    end;
                 end;
              end;
            end;
          cm_spc:
            begin
              if not ReadVariable(vd, False) then
                Break;
              if vd.FreeType <> vtNone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if (Vd.aType.BaseType <> btPointer) then
              begin
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if not ReadVariable(vs, False) then
                Break;
              if Pointer(Pointer(IPointer(vD.P)+PointerSize2)^) <> nil then
                DestroyHeapVariant2(Pointer(vD.P^), Pointer(Pointer(IPointer(vd.P)+PointerSize)^));
              if vs.aType.BaseType = btPointer then
              begin
                if Pointer(vs.P^) <> nil then
                begin
                  Pointer(vd.P^) := CreateHeapVariant2(Pointer(Pointer(IPointer(vs.P) + PointerSize)^));
                  Pointer(Pointer(IPointer(vd.P) + PointerSize)^) := Pointer(Pointer(IPointer(vs.P) + PointerSize)^);
                  Pointer(Pointer(IPointer(vd.P) + PointerSize2)^) := Pointer(1);
                  if not CopyArrayContents(Pointer(vd.P^), Pointer(vs.P^), 1, Pointer(Pointer(IPointer(vd.P) + PointerSize)^)) then
                  begin
                    if vs.FreeType <> vtNone then
                      FTempVars.Pop;
                    CMD_Err(ErTypeMismatch);
                    break;
                  end;
                end else
                begin
                  Pointer(vd.P^) := nil;
                  Pointer(Pointer(IPointer(vd.P) + PointerSize)^) := nil;
                  Pointer(Pointer(IPointer(vd.P) + PointerSize2)^) := nil;
                end;
              end else begin
                Pointer(vd.P^) := CreateHeapVariant2(vs.aType);
                Pointer(Pointer(IPointer(vd.P) + PointerSize)^) := vs.aType;
                LongBool(Pointer(IPointer(vd.P) + PointerSize2)^) := true;
                if not CopyArrayContents(Pointer(vd.P^), vs.P, 1, vs.aType) then
                begin
                  if vs.FreeType <> vtNone then
                    FTempVars.Pop;
                  CMD_Err(ErTypeMismatch);
                  break;
                end;
              end;
              if vs.FreeType <> vtNone then
                FTempVars.Pop;

            end;
          cm_nop:;
          cm_dec:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.FreeType <> vtNone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              case vd.aType.BaseType of
                btu8: dec(tbtu8(vd.P^));
                bts8: dec(tbts8(vd.P^));
                btu16: dec(tbtu16(vd.P^));
                bts16: dec(tbts16(vd.P^));
                btu32: dec(tbtu32(vd.P^));
                bts32: dec(tbts32(vd.P^));
{$IFNDEF PS_NOINT64}
                bts64: dec(tbts64(vd.P^));
{$ENDIF}
              else
                begin
                  CMD_Err(ErTypeMismatch);
                  Break;
                end;
              end;
            end;
          cm_inc:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.FreeType <> vtNone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              case vd.aType.BaseType of
                btu8: Inc(tbtu8(vd.P^));
                bts8: Inc(tbts8(vd.P^));
                btu16: Inc(tbtu16(vd.P^));
                bts16: Inc(tbts16(vd.P^));
                btu32: Inc(tbtu32(vd.P^));
                bts32: Inc(tbts32(vd.P^));
{$IFNDEF PS_NOINT64}
                bts64: Inc(tbts64(vd.P^));
{$ENDIF}
              else
                begin
                  CMD_Err(ErTypeMismatch);
                  Break;
                end;
              end;
            end;
          cm_sp:
            begin
              if not ReadVariable(vd, False) then
                Break;
              if vd.FreeType <> vtNone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if (Vd.aType.BaseType <> btPointer) then
              begin
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if not ReadVariable(vs, False) then
                Break;
              if vs.FreeType <> vtNone then
              begin
                FTempVars.Pop;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if vs.aType.BaseType = btPointer then
              begin
                Pointer(vd.P^) := Pointer(vs.p^);
                Pointer(Pointer(IPointer(vd.P)+PointerSize)^) := Pointer(Pointer(IPointer(vs.P)+PointerSize)^);
              end
              else
              begin
                Pointer(vd.P^) := vs.P;
                Pointer(Pointer(IPointer(vd.P)+PointerSize)^) := vs.aType;
              end;
            end;
          Cm_cv:
            begin
              if not ReadVariable(vd, True) then
                Break;
              if vd.aType.BaseType <> btProcPtr then
              begin
                if vd.FreeType <> vtNone then
                  FTempVars.Pop;
                CMD_Err(ErTypeMismatch);
                break;
              end;
              p := tbtu32(vd.P^);
              if vd.FreeType <> vtNone then
                FTempVars.Pop;
              if (p = 0) and (Pointer(Pointer(IPointer(vd.p)+PointerSize2)^) <> nil) then
              begin
                if not InvokeExternalMethod(TPSTypeRec_ProcPtr(vd.aType), Pointer(Pointer(IPointer(vd.p)+PointerSize)^), Pointer(Pointer(IPointer(vd.p)+PointerSize2)^)) then
                  Break;
              end else begin
                if (p >= FProcs.Count) or (p = FMainProc) then begin
                  CMD_Err(erOutOfProcRange);
                  break;
                end;
                u := FProcs.Data^[p];
                if u.ClassType = TPSExternalProcRec then begin
                  try
                    if not TPSExternalProcRec(u).ProcPtr(Self, TPSExternalProcRec(u), FGlobalVars, FStack) then begin
                      if ExEx = erNoError then
                        CMD_Err(erCouldNotCallProc);
                      Break;
                    end;
                  except
                    {$IFDEF DELPHI6UP}
                    Tmp := AcquireExceptionObject;
                    {$ELSE}
                    if RaiseList <> nil then
                    begin
                      Tmp := Exception(PRaiseFrame(RaiseList)^.ExceptObject);
                      PRaiseFrame(RaiseList)^.ExceptObject := nil;
                    end else
                      Tmp := nil;
                    {$ENDIF}
                    if Tmp <> nil then
                    begin
                      if Tmp is EPSException then
                      begin
                        ExceptionProc(EPSException(tmp).ProcNo, EPSException(tmp).ProcPos, erCustomError, tbtString(EPSException(tmp).Message), nil);
                        break;
                      end else
                      if Tmp is EDivByZero then
                      begin
                        CMD_Err3(erDivideByZero, '', Tmp);
                        break;
                      end;
                      if Tmp is EZeroDivide then
                      begin
                        CMD_Err3(erDivideByZero, '', Tmp);
                        break;
                      end;
                      if Tmp is EMathError then
                      begin
                        CMD_Err3(erMathError, '', Tmp);
                        break;
                      end;
                    end;
                    if (Tmp <> nil) and (Tmp is Exception) then
                      CMD_Err3(erException, tbtString(Exception(Tmp).Message), Tmp) else
                      CMD_Err3(erException, '', Tmp);
                    Break;
                  end;
                end
                else begin
                  vtemp := FStack.PushType(FReturnAddressType);
                  PPSVariantReturnAddress(vtemp).Addr.ProcNo := FCurrProc;
                  PPSVariantReturnAddress(vtemp).Addr.Position := FCurrentPosition;
                  PPSVariantReturnAddress(vtemp).Addr.StackBase := FCurrStackBase;
                  FCurrStackBase := FStack.Count - 1;
                  FCurrProc := TPSInternalProcRec(u);
                  FData := FCurrProc.Data;
                  FDataLength := FCurrProc.Length;
                  FCurrentPosition := 0;
                end;
              end;
            end;
          CM_CO:
            begin
              if FCurrentPosition >= FDataLength then
              begin
                CMD_Err(erOutOfRange); // Error
                break;
              end;
              calctype := FData^[FCurrentPosition];
              Inc(FCurrentPosition);
              if not ReadVariable(v3, True) then
                Break;
              if v3.FreeType <> vtNone then
              begin
                if v3.aType.BaseType in NeedFinalization then
                  FinalizeVariant(v3.P, v3.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                CMD_Err(erInvalidOpcodeParameter);
                break;
              end;
              if not ReadVariable(vs, True) then
                Break;
              if not ReadVariable(vd, True) then
              begin
                if vs.FreeType <> vtNone then
                begin
                  if vs.aType.BaseType in NeedFinalization then
                    FinalizeVariant(vs.P, vs.aType);
                  p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                  Dec(FTempVars.FCount);
                  {$IFNDEF PS_NOSMARTLIST}
                  Inc(FTempVars.FCheckCount);
                  if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                  {$ENDIF}
                  FTempVars.FLength := P;
                  if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
                end;
                Break;
              end;
              DoBooleanCalc(Vs.P, Vd.P, v3.P, vs.aType, vd.aType, v3.aType, CalcType);
              if vd.FreeType <> vtNone then
              begin
                if vd.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vd.P, vd.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
              end;
              if vs.FreeType <> vtNone then
              begin
                if vs.aType.BaseType in NeedFinalization then
                  FinalizeVariant(vs.P, vs.aType);
                p := IPointer(FTempVars.Data^[FtempVars.Count-1]) - IPointer(FtempVars.DataPtr);
                Dec(FTempVars.FCount);
                {$IFNDEF PS_NOSMARTLIST}
                Inc(FTempVars.FCheckCount);
                if FTempVars.FCheckCount > FMaxCheckCount then FTempVars.Recreate;
                {$ENDIF}
                FTempVars.FLength := P;
                if ((FTempVars.FCapacity - FTempVars.FLength) shr 12) > 2 then FTempVars.AdjustLength;
              end;
            end;

        else
          CMD_Err(erInvalidOpcode); // Error
        end;
    end;
//    if cmd <> invalidval then ProfilerExitProc(Cmd+1);
//    if ExEx <> erNoError then FStatus := FOldStatus;
  until (FExceptionStack.Count = 0) or (Fstatus <> IsRunning);
  if FStatus = isLoaded then begin
    for I := Longint(FStack.Count) - 1 downto 0 do
      FStack.Pop;
    FStack.Clear;
    if FCallCleanup then Cleanup;
  end;
  Result := ExEx = erNoError;
end;

function NVarProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  tmp: TPSVariantIFC;
begin
   case Longint(p.Ext1) of
    0:
      begin
        if @Caller.FOnSetNVariant = nil then begin Result := False; exit; end;
        tmp := NewTPSVariantIFC(Stack.Items[Stack.Count - 2], True);
        if (Tmp.Dta = nil) or (tmp.aType.BaseType <> btVariant) then begin Result := False; exit; end;
        Caller.FOnSetNVariant(Caller, Stack.GetAnsiString(-1), Variant(tmp.Dta^));
        Result := true;
      end;
    1:
      begin
        if @Caller.FOnGetNVariant = nil then begin Result := False; exit; end;
        tmp := NewTPSVariantIFC(Stack.Items[Stack.Count - 1], False);
        if (Tmp.Dta = nil) or (tmp.aType.BaseType <> btVariant) then begin Result := False; exit; end;
        Variant(tmp.Dta^) := Caller.FOnGetNVariant(Caller, Stack.GetAnsiString(-2));
        Result := true;
      end;
  else
    Result := False;
  end;
end;

function DefProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  temp: TPSVariantIFC;
  I: Longint;
  b: Boolean;
  pex: TPSExceptionHandler;
  Tmp: TObject;
begin
  case Longint(p.Ext1) of
    0: Stack.SetAnsiString(-1, IntToStr(Stack.{$IFNDEF PS_NOINT64}GetInt64{$ELSE}GetInt{$ENDIF}(-2))); // inttostr
    1: Stack.SetInt(-1, StrToInt(Stack.GetAnsiString(-2))); // strtoint
    2: Stack.SetInt(-1, StrToIntDef(Stack.GetAnsiString(-2), Stack.GetInt(-3))); // strtointdef
    3:
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
        Stack.SetInt(-1, Pos(Stack.GetUnicodeString(-2), Stack.GetUnicodeString(-3)))// pos
      else
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
        Stack.SetInt(-1, Pos(Stack.GetWideString(-2), Stack.GetWideString(-3)))// pos
      else
        Stack.SetInt(-1, Pos(Stack.GetAnsiString(-2), Stack.GetAnsiString(-3)));// pos
    4:
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
        Stack.SetWideString(-1, Copy(Stack.GetWideString(-2), Stack.GetInt(-3), Stack.GetInt(-4))) // copy
      else
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
        Stack.SetUnicodeString(-1, Copy(Stack.GetUnicodeString(-2), Stack.GetInt(-3), Stack.GetInt(-4))) // copy
      else
        Stack.SetAnsiString(-1, Copy(Stack.GetAnsiString(-2), Stack.GetInt(-3), Stack.GetInt(-4))); // copy
    5: //delete
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -1], True);
        if (temp.Dta <> nil) and (temp.aType.BaseType = btUnicodeString) then
        begin
          Delete(tbtUnicodeString(temp.Dta^), Stack.GetInt(-2), Stack.GetInt(-3));
        end else
        if (temp.Dta <> nil) and (temp.aType.BaseType = btWideString) then
        begin
          Delete(tbtwidestring(temp.Dta^), Stack.GetInt(-2), Stack.GetInt(-3));
        end else begin
          if (temp.Dta = nil) or (temp.aType.BaseType <> btString) then
          begin
            Result := False;
            exit;
          end;
          Delete(tbtstring(temp.Dta^), Stack.GetInt(-2), Stack.GetInt(-3));
        end;
      end;
    6: // insert
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -2], True);
        if (temp.Dta <> nil) and (temp.aType.BaseType = btUnicodeString) then begin
          Insert(Stack.GetUnicodeString(-1), tbtUnicodeString(temp.Dta^), Stack.GetInt(-3));
        end else if (temp.Dta <> nil) and (temp.aType.BaseType = btWideString) then begin
          Insert(Stack.GetWideString(-1), tbtwidestring(temp.Dta^), Stack.GetInt(-3));
        end else begin
          if (temp.Dta = nil) or (temp.aType.BaseType <> btString) then
          begin
            Result := False;
            exit;
          end;
          Insert(Stack.GetAnsiString(-1), tbtstring(temp.Dta^), Stack.GetInt(-3));
        end;
      end;
    7: // StrGet
      begin
        temp :=  NewTPSVariantIFC(Stack[Stack.Count -2], True);
        if (temp.Dta = nil) or (temp.aType.BaseType <> btString) then
        begin
          Result := False;
          exit;
        end;
        I := Stack.GetInt(-3);
        if (i<1) or (i>length(tbtstring(temp.Dta^))) then
        begin
          Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
          Result := False;
          exit;
        end;
        Stack.SetInt(-1,Ord(tbtstring(temp.Dta^)[i]));
      end;
    8: // StrSet
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -3], True);
        if (temp.Dta = nil) or (temp.aType.BaseType <> btString) then
        begin
          Result := False;
          exit;
        end;
        I := Stack.GetInt(-2);
        if (i<1) or (i>length(tbtstring(temp.Dta^))) then
        begin
          Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
          Result := True;
          exit;
        end;
        tbtstring(temp.Dta^)[i] := tbtchar(Stack.GetInt(-1));
      end;
    10:
{$IFDEF DELPHI2009UP}
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
        Stack.SetUnicodeString(-1, UpperCase(Stack.GetUnicodeString(-2))) // Uppercase
      else
{$ENDIF}
      if (Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString) or
        (Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString) then
        Stack.SetWideString(-1, WideUpperCase(Stack.GetWideString(-2))) // Uppercase
      else
        Stack.SetAnsiString(-1, FastUppercase(Stack.GetAnsiString(-2))); // Uppercase
    11:
{$IFDEF DELPHI2009UP}
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
        Stack.SetUnicodeString(-1, LowerCase(Stack.GetUnicodeString(-2))) // Uppercase
      else
{$ENDIF}
      if (Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString) or
        (Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString) then
        Stack.SetWideString(-1, WideLowerCase(Stack.GetWideString(-2))) // Uppercase
      else
        Stack.SetAnsiString(-1, FastLowercase(Stack.GetAnsiString(-2)));// LowerCase
    12:
      if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
        Stack.SetUnicodeString(-1, SysUtils.Trim(Stack.GetUnicodestring(-2))) // Uppercase
      else if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
        Stack.SetWideString(-1, SysUtils.Trim(Stack.GetWideString(-2))) // Uppercase
      else
        Stack.SetAnsiString(-1, Trim(Stack.GetAnsiString(-2)));// Trim
    13: Stack.SetInt(-1, Length(Stack.GetAnsiString(-2))); // Length
    14: // SetLength
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -1], True);
        if (temp.Dta = nil) or (temp.aType.BaseType <> btString) then
        begin
          Result := False;
          exit;
        end;
        SetLength(tbtstring(temp.Dta^), STack.GetInt(-2));
      end;
    15: Stack.SetReal(-1, Sin(Stack.GetReal(-2))); // Sin
    16: Stack.SetReal(-1, Cos(Stack.GetReal(-2)));  // Cos
    17: Stack.SetReal(-1, SQRT(Stack.GetReal(-2))); // Sqrt
    18: Stack.SetInt(-1, Round(Stack.GetReal(-2))); // Round
    19: Stack.SetInt(-1, Trunc(Stack.GetReal(-2))); // Trunc
    20: Stack.SetReal(-1, Int(Stack.GetReal(-2))); // Int
    21: Stack.SetReal(-1, Pi); // Pi
    22: Stack.SetReal(-1, Abs(Stack.GetReal(-2))); // Abs
    23: Stack.SetReal(-1, StrToFloat(Stack.GetAnsiString(-2))); // StrToFloat
    24: Stack.SetAnsiString(-1, FloatToStr(Stack.GetReal(-2)));// FloatToStr
    25:
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
      Stack.SetUnicodeString(-1, upadL(Stack.GetUnicodeString(-2), Stack.GetInt(-3))) //  PadL
    else
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
      Stack.SetWideString(-1, wPadL(Stack.GetWideString(-2), Stack.GetInt(-3))) //  PadL
    else
      Stack.SetAnsiString(-1, PadL(Stack.GetAnsiString(-2), Stack.GetInt(-3))); //  PadL
    26:
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
      Stack.SetUnicodeString(-1, uPadR(Stack.GetUnicodeString(-2), Stack.GetInt(-3))) // PadR
    else
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
      Stack.SetWideString(-1, wPadR(Stack.GetWideString(-2), Stack.GetInt(-3))) // PadR
    else
      Stack.SetAnsiString(-1, PadR(Stack.GetAnsiString(-2), Stack.GetInt(-3))); // PadR
    27:
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btUnicodeString then
      Stack.SetUnicodeString(-1, uPadZ(Stack.GetUnicodeString(-2), Stack.GetInt(-3)))// PadZ
    else
    if Stack.GetItem(Stack.Count -2)^.FType.BaseType = btWideString then
      Stack.SetWideString(-1, wPadZ(Stack.GetWideString(-2), Stack.GetInt(-3)))// PadZ
    else
      Stack.SetAnsiString(-1, PadZ(Stack.GetAnsiString(-2), Stack.GetInt(-3)));// PadZ
    28: Stack.SetAnsiString(-1, StringOfChar(tbtChar(Stack.GetInt(-2)), Stack.GetInt(-3))); // Replicate/StrOfChar
    29: // Assigned
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -2], True);
        if Temp.dta = nil then
        begin
          Result := False;
          exit;
        end;
        case temp.aType.BaseType of
          btU8, btS8: b := tbtu8(temp.dta^) <> 0;
          btU16, btS16: b := tbtu16(temp.dta^) <> 0;
          btU32, btS32: b := tbtu32(temp.dta^) <> 0;
          btString, btPChar: b := tbtstring(temp.dta^) <> '';
{$IFNDEF PS_NOWIDESTRING}
          btWideString: b := tbtwidestring(temp.dta^)<> '';
          btUnicodeString: b := tbtUnicodeString(temp.dta^)<> '';
{$ENDIF}
          btArray, btClass{$IFNDEF PS_NOINTERFACES}, btInterface{$ENDIF}: b := Pointer(temp.dta^) <> nil;
        else
          Result := False;
          Exit;
        end;
        if b then
          Stack.SetInt(-1, 1)
        else
          Stack.SetInt(-1, 0);
      end;
    30:
      begin {RaiseLastException}
        if (Caller.FExceptionStack.Count > 0) then begin
          pex := Caller.FExceptionStack.Data[Caller.fExceptionStack.Count -1];
          if pex.ExceptOffset = Cardinal(InvalidVal -1) then begin
            Tmp := pex.ExceptionObject;
            pex.ExceptionObject := nil;
            Caller.ExceptionProc(Caller.ExProc, pex.ExceptOffset, pex.ExceptionData, pex.ExceptionParam, tmp);
          end;
        end;
      end;
    31: Caller.CMD_Err2(TPSError(Stack.GetInt(-1)), Stack.GetAnsiString(-2)); {RaiseExeption}
    32: Stack.SetInt(-1, Ord(Caller.LastEx)); {ExceptionType}
    33: Stack.SetAnsiString(-1, Caller.LastExParam); {ExceptionParam}
    34: Stack.SetInt(-1, Caller.LastExProc); {ExceptionProc}
    35: Stack.SetInt(-1, Caller.LastExPos); {ExceptionPos}
    36: Stack.SetAnsiString(-1, PSErrorToString(TPSError(Stack.GetInt(-2)), Stack.GetAnsiString(-3))); {ExceptionToString}
    37: Stack.SetAnsiString(-1, tbtString(AnsiUpperCase(string(Stack.GetAnsiString(-2))))); // AnsiUppercase
    38: Stack.SetAnsiString(-1, tbtString(AnsiLowercase(string(Stack.GetAnsiString(-2))))); // AnsiLowerCase
{$IFNDEF PS_NOINT64}
    39: Stack.SetInt64(-1, StrToInt64(string(Stack.GetAnsiString(-2))));  // StrToInt64
    40: Stack.SetAnsiString(-1, SysUtils.IntToStr(Stack.GetInt64(-2)));// Int64ToStr
{$ENDIF}
    41:  // sizeof
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -2], False);
        if Temp.aType = nil then
          Stack.SetInt(-1, 0)
        else
          Stack.SetInt(-1, Temp.aType.RealSize)
      end;
{$IFNDEF PS_NOWIDESTRING}
    42: // WStrGet
      begin
        temp :=  NewTPSVariantIFC(Stack[Stack.Count -2], True);
        if temp.dta = nil then begin
          result := false;
          exit;
        end;
        case temp.aType.BaseType of
          btWideString:
            begin
              I := Stack.GetInt(-3);
              if (i<1) or (i>length(tbtwidestring(temp.Dta^))) then
              begin
                Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
                Result := False;
                exit;
              end;
              Stack.SetInt(-1,Ord(tbtwidestring(temp.Dta^)[i]));
            end;
          btUnicodeString:
            begin
              I := Stack.GetInt(-3);
              if (i<1) or (i>length(tbtUnicodeString(temp.Dta^))) then
              begin
                Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
                Result := False;
                exit;
              end;
              Stack.SetInt(-1,Ord(tbtUnicodeString(temp.Dta^)[i]));
            end;

        else
          begin
            Result := False;
            exit;
          end;
        end;
      end;
    43: // WStrSet
      begin
        temp := NewTPSVariantIFC(Stack[Stack.Count -3], True);
        if (temp.Dta = nil)  then
        begin
          Result := False;
          exit;
        end;
        case temp.aType.BaseType of
          btWideString:
            begin
              I := Stack.GetInt(-2);
              if (i<1) or (i>length(tbtWidestring(temp.Dta^))) then
              begin
                Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
                Result := True;
                exit;
              end;
              tbtWidestring(temp.Dta^)[i] := WideChar(Stack.GetInt(-1));
            end;

          btUnicodeString:
            begin
              I := Stack.GetInt(-2);
              if (i<1) or (i>length(tbtunicodestring(temp.Dta^))) then
              begin
                Caller.CMD_Err2(erCustomError, tbtString(RPS_OutOfStringRange));
                Result := True;
                exit;
              end;
              tbtunicodestring(temp.Dta^)[i] := WideChar(Stack.GetInt(-1));
            end;
        else
          begin
            Result := False;
            exit;
          end;
        end;
      end;
{$ENDIF}
    else
    begin
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;
function GetArrayLength(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Arr := NewTPSVariantIFC(Stack[Stack.Count-2], True);
  if (arr.Dta = nil) or (arr.aType.BaseType <> btArray) then
  begin
    Result := false;
    exit;
  end;
  Stack.SetInt(-1, PSDynArrayGetLength(Pointer(arr.Dta^), arr.aType));
  Result := True;
end;

function SetArrayLength(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Arr := NewTPSVariantIFC(Stack[Stack.Count-1], True);
  if (arr.Dta = nil) or (arr.aType.BaseType <> btArray) then
  begin
    Result := false;
    exit;
  end;
  PSDynArraySetLength(Pointer(arr.Dta^), arr.aType, Stack.GetInt(-2));
  Result := True;
end;


function InterfaceProc(Sender: TPSExec; p: TPSExternalProcRec; Tag: Pointer): Boolean; forward;

procedure RegisterInterfaceLibraryRuntime(Se: TPSExec);
begin
  SE.AddSpecialProcImport('intf', InterfaceProc, nil);
end;

{$IFNDEF DELPHI6UP}
function Null: Variant;
begin
  Result := System.Null;
end;

function Unassigned: Variant;
begin
  Result := System.Unassigned;
end;
{$ENDIF}
function Length_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  arr:=NewTPSVariantIFC(Stack[Stack.Count-2],false);
  case arr.aType.BaseType of
    btArray:
      begin
        Stack.SetInt(-1,PSDynArrayGetLength(Pointer(arr.Dta^),arr.aType));
        Result:=true;
      end;
    btStaticArray:
      begin
        Stack.SetInt(-1,TPSTypeRec_StaticArray(arr.aType).Size);
        Result:=true;
      end;
    btString:
      begin
        Stack.SetInt(-1,length(tbtstring(arr.Dta^)));
        Result:=true;
      end;
    {$IFNDEF PS_NOWIDESTRING}
    btWideString:
      begin
        Stack.SetInt(-1,length(tbtWidestring(arr.Dta^)));
        Result:=true;
      end;
    btUnicodeString:
      begin
        Stack.SetInt(-1,length(tbtUnicodeString(arr.Dta^)));
        Result:=true;
      end;
    {$ENDIF}
    btvariant:
      begin
        Stack.SetInt(-1,length(Variant(arr.Dta^)));
        Result:=true;
      end;
  else
    begin
      Caller.CMD_Err(ErTypeMismatch);
      result := true;
    end;
  end;
end;


function SetLength_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Result:=false;
  arr:=NewTPSVariantIFC(Stack[Stack.Count-1],true);
  if arr.aType.BaseType=btArray then
  begin
    PSDynArraySetLength(Pointer(arr.Dta^),arr.aType,Stack.GetInt(-2));
    Result:=true;
  end else
  if arr.aType.BaseType=btString then
  begin
    SetLength(tbtstring(arr.Dta^),STack.GetInt(-2));
    Result:=true;
{$IFNDEF PS_NOWIDESTRING}
  end else
  if arr.aType.BaseType=btWideString then
  begin
    SetLength(tbtwidestring(arr.Dta^),STack.GetInt(-2));
    Result:=true;
  end else
  if arr.aType.BaseType=btUnicodeString then
  begin
    SetLength(tbtUnicodeString(arr.Dta^),STack.GetInt(-2));
    Result:=true;
{$ENDIF}
  end;
end;

function Low_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Result:=true;
  arr:=NewTPSVariantIFC(Stack[Stack.Count-2],false);
  case arr.aType.BaseType of
    btArray      : Stack.SetInt(-1,0);
    btStaticArray: Stack.SetInt(-1,TPSTypeRec_StaticArray(arr.aType).StartOffset);
    btString     : Stack.SetInt(-1,1);
    btU8         : Stack.SetInt(-1,Low(Byte));        //Byte: 0
    btS8         : Stack.SetInt(-1,Low(ShortInt));    //ShortInt: -128
    btU16        : Stack.SetInt(-1,Low(Word));        //Word: 0
    btS16        : Stack.SetInt(-1,Low(SmallInt));    //SmallInt: -32768
    btU32        : Stack.SetInt(-1,Low(Cardinal));    //Cardinal/LongWord: 0
    btS32        : Stack.SetInt(-1,Low(Integer));     //Integer/LongInt: -2147483648
    else Result:=false;
  end;
end;

function High_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Result:=true;
  arr:=NewTPSVariantIFC(Stack[Stack.Count-2],false);
  case arr.aType.BaseType of
    btArray      : Stack.SetInt(-1,PSDynArrayGetLength(Pointer(arr.Dta^),arr.aType)-1);
    btStaticArray: Stack.SetInt(-1,TPSTypeRec_StaticArray(arr.aType).StartOffset+TPSTypeRec_StaticArray(arr.aType).Size-1);
    btString     : Stack.SetInt(-1,Length(tbtstring(arr.Dta^)));
    btU8         : Stack.SetInt(-1,High(Byte));       //Byte: 255
    btS8         : Stack.SetInt(-1,High(ShortInt));   //ShortInt: 127
    btU16        : Stack.SetInt(-1,High(Word));       //Word: 65535
    btS16        : Stack.SetInt(-1,High(SmallInt));   //SmallInt: 32767
    btU32        : Stack.SetUInt(-1,High(Cardinal));   //Cardinal/LongWord: 4294967295
    btS32        : Stack.SetInt(-1,High(Integer));    //Integer/LongInt: 2147483647
    else Result:=false;
  end;
end;

function Dec_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Result:=true;
  arr:=NewTPSVariantIFC(Stack[Stack.Count-1],true);
  case arr.aType.BaseType of
    btU8         : Stack.SetInt(-1,Tbtu8(arr.dta^)-1);     //Byte
    btS8         : Stack.SetInt(-1,Tbts8(arr.dta^)-1);     //ShortInt
    btU16        : Stack.SetInt(-1,Tbtu16(arr.dta^)-1);    //Word
    btS16        : Stack.SetInt(-1,Tbts16(arr.dta^)-1);    //SmallInt
    btU32        : Stack.SetInt(-1,Tbtu32(arr.dta^)-1);    //Cardinal/LongWord
    btS32        : Stack.SetInt(-1,Tbts32(arr.dta^)-1);    //Integer/LongInt
    else Result:=false;
  end;
end;

function Inc_(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  arr: TPSVariantIFC;
begin
  Result:=true;
  arr:=NewTPSVariantIFC(Stack[Stack.Count-1],true);
  case arr.aType.BaseType of
    btU8         : Stack.SetInt(-1,Tbtu8(arr.dta^)+1);     //Byte
    btS8         : Stack.SetInt(-1,Tbts8(arr.dta^)+1);     //ShortInt
    btU16        : Stack.SetInt(-1,Tbtu16(arr.dta^)+1);    //Word
    btS16        : Stack.SetInt(-1,Tbts16(arr.dta^)+1);    //SmallInt
    btU32        : Stack.SetInt(-1,Tbtu32(arr.dta^)+1);    //Cardinal/LongWord
    btS32        : Stack.SetInt(-1,Tbts32(arr.dta^)+1);    //Integer/LongInt
    else Result:=false;
  end;
end;


procedure TPSExec.RegisterStandardProcs;
begin
  RegisterFunctionName('!NOTIFICATIONVARIANTSET', NVarProc, Pointer(0), nil);
  RegisterFunctionName('!NOTIFICATIONVARIANTGET', NVarProc, Pointer(1), nil);

  RegisterFunctionName('INTTOSTR', DefProc, Pointer(0), nil);
  RegisterFunctionName('STRTOINT', DefProc, Pointer(1), nil);
  RegisterFunctionName('STRTOINTDEF', DefProc, Pointer(2), nil);
  RegisterFunctionName('POS', DefProc, Pointer(3), nil);
  RegisterFunctionName('COPY', DefProc, Pointer(4), nil);
  RegisterFunctionName('DELETE', DefProc, Pointer(5), nil);
  RegisterFunctionName('INSERT', DefProc, Pointer(6), nil);

  RegisterFunctionName('STRGET', DefProc, Pointer(7), nil);
  RegisterFunctionName('STRSET', DefProc, Pointer(8), nil);
  RegisterFunctionName('UPPERCASE', DefProc, Pointer(10), nil);
  RegisterFunctionName('LOWERCASE', DefProc, Pointer(11), nil);
  RegisterFunctionName('TRIM', DefProc, Pointer(12), nil);

  RegisterFunctionName('LENGTH',Length_,nil,nil);
  RegisterFunctionName('SETLENGTH',SetLength_,nil,nil);
  RegisterFunctionName('LOW',Low_,nil,nil);
  RegisterFunctionName('HIGH',High_,nil,nil);
  RegisterFunctionName('DEC',Dec_,nil,nil);
  RegisterFunctionName('INC',Inc_,nil,nil);

  RegisterFunctionName('SIN', DefProc, Pointer(15), nil);
  RegisterFunctionName('COS', DefProc, Pointer(16), nil);
  RegisterFunctionName('SQRT', DefProc, Pointer(17), nil);
  RegisterFunctionName('ROUND', DefProc, Pointer(18), nil);
  RegisterFunctionName('TRUNC', DefProc, Pointer(19), nil);
  RegisterFunctionName('INT', DefProc, Pointer(20), nil);
  RegisterFunctionName('PI', DefProc, Pointer(21), nil);
  RegisterFunctionName('ABS', DefProc, Pointer(22), nil);
  RegisterFunctionName('STRTOFLOAT', DefProc, Pointer(23), nil);
  RegisterFunctionName('FLOATTOSTR', DefProc, Pointer(24), nil);
  RegisterFunctionName('PADL', DefProc, Pointer(25), nil);
  RegisterFunctionName('PADR', DefProc, Pointer(26), nil);
  RegisterFunctionName('PADZ', DefProc, Pointer(27), nil);
  RegisterFunctionName('REPLICATE', DefProc, Pointer(28), nil);
  RegisterFunctionName('STRINGOFCHAR', DefProc, Pointer(28), nil);
  RegisterFunctionName('!ASSIGNED', DefProc, Pointer(29), nil);

  RegisterDelphiFunction(@Unassigned, 'UNASSIGNED', cdRegister);
  RegisterDelphiFunction(@VarIsEmpty, 'VARISEMPTY', cdRegister);
  RegisterDelphiFunction(@Null, 'NULL', cdRegister);
  RegisterDelphiFunction(@VarIsNull, 'VARISNULL', cdRegister);
  RegisterDelphiFunction(@VarType, 'VARTYPE', cdRegister);
  {$IFNDEF PS_NOIDISPATCH}
  RegisterDelphiFunction(@IDispatchInvoke, 'IDISPATCHINVOKE', cdregister);
  {$ENDIF}


  RegisterFunctionName('GETARRAYLENGTH', GetArrayLength, nil, nil);
  RegisterFunctionName('SETARRAYLENGTH', SetArrayLength, nil, nil);

  RegisterFunctionName('RAISELASTEXCEPTION', DefPRoc, Pointer(30), nil);
  RegisterFunctionName('RAISEEXCEPTION', DefPRoc, Pointer(31), nil);
  RegisterFunctionName('EXCEPTIONTYPE', DefPRoc, Pointer(32), nil);
  RegisterFunctionName('EXCEPTIONPARAM', DefPRoc, Pointer(33), nil);
  RegisterFunctionName('EXCEPTIONPROC', DefPRoc, Pointer(34), nil);
  RegisterFunctionName('EXCEPTIONPOS', DefPRoc, Pointer(35), nil);
  RegisterFunctionName('EXCEPTIONTOSTRING', DefProc, Pointer(36), nil);
  RegisterFunctionName('ANSIUPPERCASE', DefProc, Pointer(37), nil);
  RegisterFunctionName('ANSILOWERCASE', DefProc, Pointer(38), nil);

  {$IFNDEF PS_NOINT64}
  RegisterFunctionName('STRTOINT64', DefProc, Pointer(39), nil);
  RegisterFunctionName('INT64TOSTR', DefProc, Pointer(40), nil);
  {$ENDIF}
  RegisterFunctionName('SIZEOF', DefProc, Pointer(41), nil);

  {$IFNDEF PS_NOWIDESTRING}
  RegisterFunctionName('WSTRGET', DefProc, Pointer(42), nil);
  RegisterFunctionName('WSTRSET', DefProc, Pointer(43), nil);
  {$ENDIF}

  RegisterInterfaceLibraryRuntime(Self);
end;


function ToString(p: PansiChar): tbtString;
begin
  SetString(Result, p, StrLen(p));
end;

function IntPIFVariantToVariant(Src: pointer; aType: TPSTypeRec; var Dest: Variant): Boolean;
  function BuildArray(P: Pointer; aType: TPSTypeRec; Len: Longint): Boolean;
  var
    i, elsize: Longint;
    v: variant;
  begin
    elsize := aType.RealSize;
    Dest := VarArrayCreate([0, Len-1], varVariant);
    for i := 0 to Len -1 do
    begin
      if not IntPIFVariantToVariant(p, aType, v) then
      begin
        result := false;
        exit;
      end;
      Dest[i] := v;
      p := Pointer(IPointer(p) + Cardinal(elSize));
    end;
    result := true;
  end;
begin
  if aType = nil then
  begin
    Dest := null;
    Result := True;
    exit;
  end;
  if aType.BaseType = btPointer then
  begin
    aType := TPSTypeRec(Pointer(IPointer(src)+PointerSize)^);
    Src := Pointer(Pointer(Src)^);
  end;

  case aType.BaseType of
    btVariant: Dest := variant(src^);
    btArray: if not BuildArray(Pointer(Src^), TPSTypeRec_Array(aType).ArrayType, PSDynArrayGetLength(Pointer(src^), aType)) then begin result := false; exit; end;
    btStaticArray: if not BuildArray(Pointer(Src), TPSTypeRec_StaticArray(aType).ArrayType, PSDynArrayGetLength(Pointer(src^), aType)) then begin result := false; exit; end;
    btU8:
      if aType.ExportName = 'BOOLEAN' then
        Dest := boolean(tbtu8(Src^) <> 0)
      else
        Dest := tbtu8(Src^);
    btS8: Dest := tbts8(Src^);
    btU16: Dest := tbtu16(Src^);
    btS16: Dest := tbts16(Src^);
    btU32: Dest := {$IFDEF DELPHI6UP}tbtu32{$ELSE}tbts32{$ENDIF}(Src^);
    btS32: Dest := tbts32(Src^);
    btSingle: Dest := tbtsingle(Src^);
    btCurrency: Dest:=tbtCurrency(Src^);
    btDouble:
      begin
        if aType.ExportName = 'TDATETIME' then
          Dest := TDateTime(tbtDouble(Src^))
        else
          Dest := tbtDouble(Src^);
      end;
    btExtended: Dest := tbtExtended(Src^);
    btString: Dest := tbtString(Src^);
    btPChar: Dest := ToString(PansiChar(Src^));
  {$IFNDEF PS_NOINT64}
  {$IFDEF DELPHI6UP} btS64: Dest := tbts64(Src^); {$ELSE} bts64: begin Result := False; exit; end; {$ENDIF}
  {$ENDIF}
    btChar: Dest := tbtString(tbtchar(src^));
  {$IFNDEF PS_NOWIDESTRING}
    btWideString: Dest := tbtWideString(src^);
    btWideChar: Dest := tbtwidestring(tbtwidechar(src^));
    btUnicodeString: Dest := tbtUnicodeString(src^);
  {$ENDIF}
  else
    begin
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;

function PIFVariantToVariant(Src: PIFVariant; var Dest: Variant): Boolean;
begin
  Result := IntPIFVariantToVariant(@PPSVariantData(src).Data, Src.FType, Dest);
end;

function VariantToPIFVariant(Exec: TPSExec; const Src: Variant; Dest: PIFVariant): Boolean;
var
  TT: PIFTypeRec;
begin
  if Dest = nil then begin Result := false; exit; end;
  tt := Exec.FindType2(btVariant);
  if tt = nil then begin Result := false; exit; end;
  if Dest.FType.BaseType = btPointer then
    Result := Exec.SetVariantValue(PPSVariantPointer(Dest).DataDest, @Src, PPSVariantPointer(Dest).DestType, tt)
  else
    Result := Exec.SetVariantValue(@PPSVariantData(Dest).Data, @Src, Dest.FType, tt);
end;

type
  POpenArray = ^TOpenArray;
  TOpenArray = record
    AType: Byte; {0}
    OrgVar: PPSVariantIFC;
    FreeIt: Boolean;
    ElementSize,
    ItemCount: Longint;
    Data: Pointer;
    VarParam: Boolean;
  end;
function CreateOpenArray(VarParam: Boolean; Sender: TPSExec; val: PPSVariantIFC): POpenArray;
var
  datap, p: Pointer;
  ctype: TPSTypeRec;
  cp: Pointer;
  i: Longint;
begin
  if (Val.aType.BaseType <> btArray) and (val.aType.BaseType <> btStaticArray) then
  begin
    Result := nil;
    exit;
  end;
  New(Result);
  Result.AType := 0;
  Result.OrgVar := Val;
  Result.VarParam := VarParam;

  if val.aType.BaseType = btStaticArray then
  begin
    Result^.ItemCount := TPSTypeRec_StaticArray(val.aType).Size;
    datap := Val.Dta;
  end else
  begin
    Result^.ItemCount := PSDynArrayGetLength(Pointer(Val.Dta^), val.aType);
    datap := Pointer(Val.Dta^);
  end;
  if TPSTypeRec_Array(Val.aType).ArrayType.BaseType <> btPointer then
  begin
    Result.FreeIt := False;
    result.ElementSize := 0;
    Result.Data := datap;
    exit;
  end;
  Result.FreeIt := True;
  Result.ElementSize := sizeof(TVarRec);
  GetMem(Result.Data, Result.ItemCount * Result.ElementSize);
  P := Result.Data;
  FillChar(p^, Result^.ItemCount * Result^.ElementSize, 0);
  for i := 0 to Result^.ItemCount -1 do
  begin
    ctype := Pointer(Pointer(IPointer(datap)+PointerSize)^);
    cp := Pointer(Datap^);
    if cp = nil then
    begin
      tvarrec(p^).VType := vtPointer;
      tvarrec(p^).VPointer := nil;
    end else begin
       case ctype.BaseType of
        btVariant: begin
          tvarrec(p^).VType := vtVariant;
          tvarrec(p^).VVariant := cp;
        end;
        btchar: begin
            tvarrec(p^).VType := vtChar;
            tvarrec(p^).VChar := tbtChar(tbtchar(cp^));
          end;
        btSingle:
          begin
            tvarrec(p^).VType := vtExtended;
            New(tvarrec(p^).VExtended);
            tvarrec(p^).VExtended^ := tbtsingle(cp^);
          end;
        btExtended:
          begin
            tvarrec(p^).VType := vtExtended;
            New(tvarrec(p^).VExtended);
            tvarrec(p^).VExtended^ := tbtextended(cp^);;
          end;
        btDouble:
          begin
            tvarrec(p^).VType := vtExtended;
            New(tvarrec(p^).VExtended);
            tvarrec(p^).VExtended^ := tbtdouble(cp^);
          end;
        {$IFNDEF PS_NOWIDESTRING}
        btwidechar: begin
            tvarrec(p^).VType := vtWideChar;
            tvarrec(p^).VWideChar := tbtwidechar(cp^);
          end;
        {$IFDEF DELPHI2009UP}
        btUnicodeString: begin
          tvarrec(p^).VType := vtUnicodeString;
          tbtunicodestring(TVarRec(p^).VWideString) := tbtunicodestring(cp^);
        end;
        {$ELSE}
        btUnicodeString,
        {$ENDIF}
        btwideString: begin
          tvarrec(p^).VType := vtWideString;
          tbtwidestring(TVarRec(p^).VWideString) := tbtwidestring(cp^);
        end;
        {$ENDIF}
        btU8: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbtu8(cp^);
          end;
        btS8: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbts8(cp^);
          end;
        btU16: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbtu16(cp^);
          end;
        btS16: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbts16(cp^);
          end;
        btU32: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbtu32(cp^);
          end;
        btS32: begin
            tvarrec(p^).VType := vtInteger;
            tvarrec(p^).VInteger := tbts32(cp^);
          end;
        {$IFNDEF PS_NOINT64}
        btS64: begin
            tvarrec(p^).VType := vtInt64;
            New(tvarrec(p^).VInt64);
            tvarrec(p^).VInt64^ := tbts64(cp^);
          end;
        {$ENDIF}
        btString: begin
          tvarrec(p^).VType := vtAnsiString;
          tbtString(TVarRec(p^).VAnsiString) := tbtstring(cp^);
        end;
        btPChar:
        begin
          tvarrec(p^).VType := vtPchar;
          TVarRec(p^).VPChar := pointer(cp^);
        end;
        btClass:
        begin
          tvarrec(p^).VType := vtObject;
          tvarrec(p^).VObject := Pointer(cp^);
        end;
{$IFNDEF PS_NOINTERFACES}
{$IFDEF Delphi3UP}
        btInterface:
        begin
          tvarrec(p^).VType := vtInterface;
          IUnknown(tvarrec(p^).VInterface) := IUnknown(cp^);
        end;

{$ENDIF}
{$ENDIF}
      end;
    end;
    datap := Pointer(IPointer(datap)+ (2*sizeof(Pointer)+sizeof(Longbool)));
    p := PansiChar(p) + Result^.ElementSize;
  end;
end;

procedure DestroyOpenArray(Sender: TPSExec; V: POpenArray);
var
  cp, datap: pointer;
  ctype: TPSTypeRec;
  p: PVarRec;
  i: Longint;
begin
  if v.FreeIt then // basetype = btPointer
  begin
    p := v^.Data;
    if v.OrgVar.aType.BaseType = btStaticArray then
      datap := v.OrgVar.Dta
    else
      datap := Pointer(v.OrgVar.Dta^);
    for i := 0 to v^.ItemCount -1 do
    begin
      ctype := Pointer(Pointer(IPointer(datap)+PointerSize)^);
      cp := Pointer(Datap^);
      case ctype.BaseType of
        btU8:
          begin
            if v^.varParam then
              tbtu8(cp^) := tvarrec(p^).VInteger
          end;
        btS8: begin
            if v^.varParam then
              tbts8(cp^) := tvarrec(p^).VInteger
          end;
        btU16: begin
            if v^.varParam then
              tbtu16(cp^) := tvarrec(p^).VInteger
          end;
        btS16: begin
            if v^.varParam then
              tbts16(cp^) := tvarrec(p^).VInteger
          end;
        btU32: begin
            if v^.varParam then
              tbtu32(cp^) := tvarrec(p^).VInteger
          end;
        btS32: begin
            if v^.varParam then
              tbts32(cp^) := tvarrec(p^).VInteger
          end;
        btChar: begin
            if v^.VarParam then
              tbtchar(cp^) := tbtChar(tvarrec(p^).VChar)
          end;
        btSingle: begin
          if v^.VarParam then
            tbtsingle(cp^) := tvarrec(p^).vextended^;
          dispose(tvarrec(p^).vextended);
        end;
        btDouble: begin
          if v^.VarParam then
            tbtdouble(cp^) := tvarrec(p^).vextended^;
          dispose(tvarrec(p^).vextended);
        end;
        btExtended: begin
          if v^.VarParam then
            tbtextended(cp^) := tvarrec(p^).vextended^;
          dispose(tvarrec(p^).vextended);
        end;
        {$IFNDEF PS_NOINT64}
        btS64: begin
            if v^.VarParam then
              tbts64(cp^) := tvarrec(p^).vInt64^;
            dispose(tvarrec(p^).VInt64);
          end;
        {$ENDIF}
        {$IFNDEF PS_NOWIDESTRING}
        btWideChar: begin
            if v^.varParam then
              tbtwidechar(cp^) := tvarrec(p^).VWideChar;
          end;
        {$IFDEF DELPHI2009UP}
        btUnicodeString:
          begin
          if v^.VarParam then
            tbtunicodestring(cp^) := tbtunicodestring(TVarRec(p^).VUnicodeString);
          finalize(tbtunicodestring(TVarRec(p^).VUnicodeString));
          end;
        {$ELSE}
        btUnicodeString,
        {$ENDIF}
        btWideString:
          begin
          if v^.VarParam then
            tbtwidestring(cp^) := tbtwidestring(TVarRec(p^).VWideString);
          finalize(widestring(TVarRec(p^).VWideString));
          end;
        {$ENDIF}
        btString: begin
          if v^.VarParam then
            tbtstring(cp^) := tbtstring(TVarRec(p^).VString);
          finalize(tbtString(TVarRec(p^).VAnsiString));
        end;
        btClass: begin
          if v^.VarParam then
            Pointer(cp^) := TVarRec(p^).VObject;
        end;
{$IFNDEF PS_NOINTERFACES}
{$IFDEF Delphi3UP}
        btInterface: begin
          if v^.VarParam then
            IUnknown(cp^) := IUnknown(TVarRec(p^).VInterface);
          finalize(tbtString(TVarRec(p^).VAnsiString));
        end;
{$ENDIF}
{$ENDIF}
      end;
      datap := Pointer(IPointer(datap)+ (2*sizeof(Pointer)+sizeof(LongBool)));
      p := Pointer(IPointer(p) + Cardinal(v^.ElementSize));
    end;
    FreeMem(v.Data, v.ElementSize * v.ItemCount);
  end;
  Dispose(V);
end;


{$ifndef FPC}
  {$include x86.inc}
{$else}
{$IFDEF Delphi6UP}
  {$if defined(cpu86)}
    {$include x86.inc}
  {$elseif defined(cpupowerpc)}
    {$include powerpc.inc}
  {$elseif defined(cpuarm)}
    {$include arm.inc}
  {$elseif defined(CPUX86_64)}
    {$include x64.inc}
  {$else}
    {$fatal Pascal Script is not supported for your architecture at the moment!}
  {$ifend}
{$ELSE}
{$include x86.inc}
{$ENDIF}
{$endif}

type
  PScriptMethodInfo = ^TScriptMethodInfo;
  TScriptMethodInfo = record
    Se: TPSExec;
    ProcNo: Cardinal;
  end;


function MkMethod(FSE: TPSExec; No: Cardinal): TMethod;
begin
  if (no = 0) or (no = InvalidVal) then
  begin
    Result.Code := nil;
    Result.Data := nil;
  end else begin
    Result.Code := @MyAllMethodsHandler;
    Result.Data := GetMethodInfoRec(FSE, No);
  end;
end;


procedure PFree(Sender: TPSExec; P: PScriptMethodInfo);
begin
  Dispose(p);
end;

function GetMethodInfoRec(SE: TPSExec; ProcNo: Cardinal): Pointer;
var
  I: Longint;
  pp: PScriptMethodInfo;
begin
  if (ProcNo = 0) or (ProcNo = InvalidVal) then
  begin
    Result := nil;
    exit;
  end;
  I := 2147483647;
  repeat
    pp := Se.FindProcResource2(@PFree, I);
    if (i <> -1) and (pp^.ProcNo = ProcNo) then
    begin
      Result := Pp;
      exit;
    end;
  until i = -1;
  New(pp);
  pp^.Se := TPSExec(Se);
  pp^.ProcNo := Procno;
  Se.AddResource(@PFree, pp);
  Result := pp;
end;





type
  TPtrArr = array[0..1000] of Pointer;
  PPtrArr = ^TPtrArr;
  TByteArr = array[0..1000] of byte;
  PByteArr = ^TByteArr;
  PPointer = ^Pointer;


function VirtualMethodPtrToPtr(Ptr, FSelf: Pointer): Pointer;
{$IFDEF FPC}
var
 x : PPtrArr;
{$ENDIF}
begin
 {$IFDEF FPC}
 x := Pointer(TObject(FSelf).ClassType) + vmtMethodStart;
 Result := x^[Longint(Ptr)];
 {$ELSE}
 Result := PPtrArr(PPointer(FSelf)^)^[Longint(Ptr)];
 {$ENDIF}
end;

function VirtualClassMethodPtrToPtr(Ptr, FSelf: Pointer): Pointer;
{$IFDEF FPC}
var
 x : PPtrArr;
{$ENDIF}
begin
  {$IFDEF FPC}
  x := Pointer(FSelf) + vmtMethodStart;
  Result := x^[Longint(Ptr)];
  {$ELSE}
  Result := PPtrArr(FSelf)^[Longint(Ptr)];
  {$ENDIF}
end;


procedure CheckPackagePtr(var P: PByteArr);
begin
  if (word((@p[0])^) = $25FF) and (word((@p[6])^)=$C08B)then
  begin
    p := PPointer((@p[2])^)^;
  end;
end;

{$IFDEF VER90}{$DEFINE NO_vmtSelfPtr}{$ENDIF}
{$IFDEF FPC}{$DEFINE NO_vmtSelfPtr}{$ENDIF}

{$IFNDEF FPC}

function FindVirtualMethodPtr(Ret: TPSRuntimeClass; FClass: TClass; Ptr: Pointer): Pointer;
// Idea of getting the number of VMT items from GExperts
var
  p: PPtrArr;
  I: Longint;
begin
  p := Pointer(FClass);
  CheckPackagePtr(PByteArr(Ptr));
  if Ret.FEndOfVMT = MaxInt then
  begin
    I := {$IFDEF NO_vmtSelfPtr}-48{$ELSE}vmtSelfPtr{$ENDIF} div SizeOf(Pointer) + 1;
    while I < 0 do
    begin
      if I < 0 then
      begin
        if I <> ({$IFDEF VER90}-44{$ELSE}vmtTypeInfo{$ENDIF} div SizeOf(Pointer)) then
        begin // from GExperts code
          if (IPointer(p^[I]) > IPointer(p)) and ((IPointer(p^[I]) - IPointer(p))
            div
            PointerSize < Ret.FEndOfVMT) then
          begin
            Ret.FEndOfVMT := (IPointer(p^[I]) - IPointer(p)) div SizeOf(Pointer);
          end;
        end;
      end;
      Inc(I);
    end;
    if Ret.FEndOfVMT = MaxInt then
    begin
      Ret.FEndOfVMT := 0; // cound not find EndOfVMT
      Result := nil;
      exit;
    end;
  end;
  I := 0;
  while I < Ret.FEndOfVMT do
  begin
    if p^[I] = Ptr then
    begin
      Result := Pointer(I);
      exit;
    end;
    I := I + 1;
  end;
  Result := nil;
end;

{$ELSE}

function FindVirtualMethodPtr(Ret: TPSRuntimeClass; FClass: TClass; Ptr: Pointer): Pointer;
var
  x,p: PPtrArr;
  I: Longint;
  t : Pointer;
begin
  p := Pointer(FClass) + vmtMethodStart;
  I := 0;
  while (p^[I]<>nil) and (I < 10000) do
  begin
    if p^[I] = Ptr then
    begin
      Result := Pointer(I);
      x := Pointer(FClass) + vmtMethodStart;
      t := x^[I];
      Assert(t=Ptr,'Computation of virtual method pointer fail : t<>Ptr');
      exit;
    end;
    I := I + 1;
  end;
  Result := nil;
end;

{$ENDIF}


function NewTPSVariantIFC(avar: PPSVariant; varparam: boolean): TPSVariantIFC;
begin
  Result.VarParam := varparam;
  if avar = nil then
  begin
    Result.aType := nil;
    result.Dta := nil;
  end else
  begin
    Result.aType := avar.FType;
    result.Dta := @PPSVariantData(avar).Data;
    if Result.aType.BaseType = btPointer then
    begin
      Result.aType := Pointer(Pointer(IPointer(result.dta)+ PointerSize)^);
      Result.Dta := Pointer(Result.dta^);
    end;
  end;
end;

function NewTPSVariantRecordIFC(avar: PPSVariant; Fieldno: Longint): TPSVariantIFC;
var
  offs: Cardinal;
begin
  Result := NewTPSVariantIFC(avar, false);
  if Result.aType.BaseType = btRecord then
  begin
    Offs := Cardinal(TPSTypeRec_Record(Result.aType).RealFieldOffsets[FieldNo]);
    Result.Dta := Pointer(IPointer(Result.dta) + Offs);
    Result.aType := TPSTypeRec_Record(Result.aType).FieldTypes[FieldNo];
  end else
  begin
    Result.Dta := nil;
    Result.aType := nil;
  end;
end;

function PSGetArrayField(const avar: TPSVariantIFC; Fieldno: Longint): TPSVariantIFC;
var
  offs: Cardinal;
  n: Longint;
begin
  Result := aVar;
  case Result.aType.BaseType of
    btStaticArray, btArray:
  begin
        if Result.aType.BaseType = btStaticArray then
          n := TPSTypeRec_StaticArray(Result.aType).Size
        else
          n := PSDynArrayGetLength(Pointer(Result.Dta^), Result.aType);
        if (FieldNo <0) or (FieldNo >= n) then
    begin
      Result.Dta := nil;
      Result.aType := nil;
      exit;
    end;
    Offs := TPSTypeRec_Array(Result.aType).ArrayType.RealSize * Cardinal(FieldNo);
        if Result.aType.BaseType = btStaticArray then
          Result.Dta := Pointer(IPointer(Result.dta) + Offs)
        else
          Result.Dta := Pointer(IPointer(Result.dta^) + Offs);
    Result.aType := TPSTypeRec_Array(Result.aType).ArrayType;
      end
  else
    Result.Dta := nil;
    Result.aType := nil;
  end;
end;

function PSGetRecField(const avar: TPSVariantIFC; Fieldno: Longint): TPSVariantIFC;
var
  offs: Cardinal;
begin
  Result := aVar;
  if Result.aType.BaseType = btRecord then
  begin
    Offs := Cardinal(TPSTypeRec_Record(Result.aType).RealFieldOffsets[FieldNo]);
    Result.aType := TPSTypeRec_Record(Result.aType).FieldTypes[FieldNo];
    Result.Dta := Pointer(IPointer(Result.dta) + Offs);
  end else
  begin
    Result.Dta := nil;
    Result.aType := nil;
  end;
end;

function NewPPSVariantIFC(avar: PPSVariant; varparam: boolean): PPSVariantIFC;
begin
  New(Result);
  Result^ := NewTPSVariantIFC(avar, varparam);
end;


procedure DisposePPSVariantIFC(aVar: PPSVariantIFC);
begin
  if avar <> nil then
    Dispose(avar);
end;

procedure DisposePPSVariantIFCList(list: TPSList);
var
  i: Longint;
begin
  for i := list.Count -1 downto 0 do
    DisposePPSVariantIFC(list[i]);
  list.free;
end;

function ClassCallProcMethod(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  i: Integer;
  MyList: TPSList;
  n: PIFVariant;
  v: PPSVariantIFC;
  FSelf: Pointer;
  CurrStack: Cardinal;
  cc: TPSCallingConvention;
  s: tbtString;
begin
  s := p.Decl;
  if length(S) < 2 then
  begin
    Result := False;
    exit;
  end;
  cc := TPSCallingConvention(s[1]);
  Delete(s, 1, 1);
  if s[1] = #0 then
    n := Stack[Stack.Count -1]
  else
    n := Stack[Stack.Count -2];
  if (n = nil) or (n^.FType.BaseType <> btClass)or (PPSVariantClass(n).Data = nil) then
  begin
    Caller.CMD_Err(erNullPointerException);
    result := false;
    exit;
  end;
  FSelf := PPSVariantClass(n).Data;
  CurrStack := Cardinal(Stack.Count) - Cardinal(length(s)) -1;
  if s[1] = #0 then inc(CurrStack);
  MyList := TPSList.Create;
  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    n := Stack[CurrStack];
    MyList[i - 2] := NewPPSVariantIFC(n, s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    v := NewPPSVariantIFC(Stack[CurrStack + 1], True);
  end else v := nil;
  try
    if p.Ext2 = nil then
      Result := Caller.InnerfuseCall(FSelf, p.Ext1, cc, MyList, v)
    else
      Result := Caller.InnerfuseCall(FSelf, VirtualMethodPtrToPtr(p.Ext1, FSelf), cc, MyList, v);
  finally
    DisposePPSVariantIFC(v);
    DisposePPSVariantIFCList(mylist);
  end;
end;

function ClassCallProcConstructor(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  i, h: Longint;
  v: PPSVariantIFC;
  MyList: TPSList;
  n: PIFVariant;
  FSelf: Pointer;
  CurrStack: Cardinal;
  cc: TPSCallingConvention;
  s: tbtString;
  FType: PIFTypeRec;
  x: TPSRuntimeClass;
  IntVal: PIFVariant;
begin
  n := Stack[Stack.Count -2];
  if (n = nil) or (n^.FType.BaseType <> btU32)  then
  begin
    result := false;
    exit;
  end;
  FType := Caller.GetTypeNo(PPSVariantU32(N).Data);
  if (FType = nil)  then
  begin
    Result := False;
    exit;
  end;
  h := MakeHash(FType.ExportName);
  FSelf := nil;
  for i := 0 to TPSRuntimeClassImporter(p.Ext2).FClasses.Count -1 do
  begin
    x:= TPSRuntimeClassImporter(p.Ext2).FClasses[i];
    if (x.FClassNameHash = h) and (x.FClassName = FType.ExportName) then
    begin
      FSelf := x.FClass;
    end;
  end;
  if FSelf = nil then begin
    Result := False;
    exit;
  end;
  s := p.Decl;
  if length(S) < 2 then
  begin
    Result := False;
    exit;
  end;
  cc := TPSCallingConvention(s[1]);
  Delete(s, 1, 1);
  CurrStack := Cardinal(Stack.Count) - Cardinal(length(s)) -1;
  if s[1] = #0 then inc(CurrStack);
  IntVal := CreateHeapVariant(Caller.FindType2(btU32));
  if IntVal = nil then
  begin
    Result := False;
    exit;
  end;
  {$IFDEF FPC}
  // under FPC a constructor it's called with self=0 (EAX) and
  // the VMT class pointer in EDX so they are effectively swaped
  // using register calling convention
  PPSVariantU32(IntVal).Data := Cardinal(FSelf);
  FSelf := pointer(1);
  {$ELSE}
  PPSVariantU32(IntVal).Data := 1;
  {$ENDIF}
  MyList := TPSList.Create;
  MyList.Add(NewPPSVariantIFC(intval, false));
  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    n :=Stack[CurrStack];
//    if s[i] <> #0 then
//    begin
//      MyList[i - 2] := NewPPSVariantIFC(n, s[i] <> #0);
//    end;
    MyList[i - 1] := NewPPSVariantIFC(n, s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    v := NewPPSVariantIFC(Stack[CurrStack + 1], True);
  end else v := nil;
  try
    Result := Caller.InnerfuseCall(FSelf, p.Ext1, TPSCallingConvention(Integer(cc) or 64), MyList, v);
  finally
    DisposePPSVariantIFC(v);
    DisposePPSVariantIFCList(mylist);
    DestroyHeapVariant(intval);
  end;
end;


function ClassCallProcVirtualConstructor(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  i, h: Longint;
  v: PPSVariantIFC;
  MyList: TPSList;
  n: PIFVariant;
  FSelf: Pointer;
  CurrStack: Cardinal;
  cc: TPSCallingConvention;
  s: tbtString;
  FType: PIFTypeRec;
  x: TPSRuntimeClass;
  IntVal: PIFVariant;
begin
  n := Stack[Stack.Count -2];
  if (n = nil) or (n^.FType.BaseType <> btU32)  then
  begin
    Caller.CMD_Err(erNullPointerException);
    result := false;
    exit;
  end;
  FType := Caller.GetTypeNo(PPSVariantU32(N).Data);
  if (FType = nil)  then
  begin
    Caller.CMD_Err(erNullPointerException);
    Result := False;
    exit;
  end;
  h := MakeHash(FType.ExportName);
  FSelf := nil;
  for i := 0 to TPSRuntimeClassImporter(p.Ext2).FClasses.Count -1 do
  begin
    x:= TPSRuntimeClassImporter(p.Ext2).FClasses[i];
    if (x.FClassNameHash = h) and (x.FClassName = FType.ExportName) then
    begin
      FSelf := x.FClass;
    end;
  end;
  if FSelf = nil then begin
    Result := False;
    exit;
  end;
  s := p.Decl;
  if length(S) < 2 then
  begin
    Result := False;
    exit;
  end;
  cc := TPSCallingConvention(s[1]);
  delete(s, 1, 1);
  CurrStack := Cardinal(Stack.Count) - Cardinal(length(s)) -1;
  if s[1] = #0 then inc(CurrStack);
  IntVal := CreateHeapVariant(Caller.FindType2(btU32));
  if IntVal = nil then
  begin
    Result := False;
    exit;
  end;
  PPSVariantU32(IntVal).Data := 1;
  MyList := TPSList.Create;
  MyList.Add(NewPPSVariantIFC(intval, false));
  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    n :=Stack[CurrStack];
    MyList[i - 1] := NewPPSVariantIFC(n, s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    v := NewPPSVariantIFC(Stack[CurrStack + 1], True);
  end else v := nil;
  try
    Result := Caller.InnerfuseCall(FSelf, VirtualClassMethodPtrToPtr(p.Ext1, FSelf), cc, MyList, v);
  finally
    DisposePPSVariantIFC(v);
    DisposePPSVariantIFCList(mylist);
    DestroyHeapVariant(intval);
  end;
end;

function CastProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  TypeNo, InVar, ResVar: TPSVariantIFC;
  FSelf: TClass;
  FType: PIFTypeRec;
  H, I: Longint;
  x: TPSRuntimeClass;
begin
  TypeNo := NewTPSVariantIFC(Stack[Stack.Count-3], false);
  InVar := NewTPSVariantIFC(Stack[Stack.Count-2], false);
  ResVar := NewTPSVariantIFC(Stack[Stack.Count-1], true);
  if (TypeNo.Dta = nil) or (InVar.Dta = nil) or (ResVar.Dta = nil) or
  (TypeNo.aType.BaseType <> btu32) or (resvar.aType <> Caller.FTypes[tbtu32(Typeno.dta^)])
  then
  begin
    Result := False;
    Exit;
  end;
{$IFNDEF PS_NOINTERFACES}
  if (invar.atype.BaseType = btInterface) and (resvar.aType.BaseType = btInterface) then
  begin
{$IFNDEF Delphi3UP}
    if IUnknown(resvar.Dta^) <> nil then
      IUnknown(resvar.Dta^).Release;
{$ENDIF}
    IUnknown(resvar.Dta^) := nil;
    if (IUnknown(invar.Dta^) = nil) or (IUnknown(invar.Dta^).QueryInterface(TPSTypeRec_Interface(ResVar.aType).Guid, IUnknown(resvar.Dta^)) <> 0) then
    begin
      Caller.CMD_Err2(erCustomError, tbtString(RPS_CannotCastInterface));
      Result := False;
      exit;
    end;
{$IFDEF Delphi3UP}
  end else if (Invar.aType.BaseType = btclass) and (resvar.aType.BaseType = btInterface) then
  begin
{$IFNDEF Delphi3UP}
    if IUnknown(resvar.Dta^) <> nil then
      IUnknown(resvar.Dta^).Release;
{$ENDIF}
    IUnknown(resvar.Dta^) := nil;
    if (TObject(invar.Dta^)= nil) or (not TObject(invar.dta^).GetInterface(TPSTypeRec_Interface(ResVar.aType).Guid, IUnknown(resvar.Dta^))) then
    begin
      Caller.CMD_Err2(erCustomError, tbtString(RPS_CannotCastInterface));
      Result := False;
      exit;
    end;
{$ENDIF}
  end else {$ENDIF}if (invar.aType.BaseType = btclass) and (resvar.aType.BaseType = btclass ) then
  begin
    FType := Caller.GetTypeNo(tbtu32(TypeNo.Dta^));
    if (FType = nil)  then
    begin
      Result := False;
      exit;
    end;
    h := MakeHash(FType.ExportName);
    FSelf := nil;
    for i := 0 to TPSRuntimeClassImporter(p.Ext2).FClasses.Count -1 do
    begin
      x:= TPSRuntimeClassImporter(p.Ext2).FClasses[i];
      if (x.FClassNameHash = h) and (x.FClassName = FType.ExportName) then
      begin
        FSelf := x.FClass;
      end;
    end;
    if FSelf = nil then begin
      Result := False;
      exit;
    end;

    try
      TObject(ResVar.Dta^) := TObject(InVar.Dta^) as FSelf;
    except
      Result := False;
      Caller.CMD_Err2(erCustomError, tbtString(RPS_CannotCastObject));
      exit;
    end;
  end else
  begin
    Result := False;
    exit;
  end;
  result := True;
end;


function NilProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  n: TPSVariantIFC;
begin
  n := NewTPSVariantIFC(Stack[Stack.Count-1], True);
  if (n.Dta = nil) or ((n.aType.BaseType <> btClass) and (n.aType.BaseType <> btInterface)) then
  begin
    Result := False;
    Caller.CMD_Err(erNullPointerException);
    Exit;
  end;
{$IFNDEF PS_NOINTERFACES}
  if n.aType.BaseType = btInterface then
  begin
    {$IFNDEF Delphi3UP}
    if IUnknown(n.Dta^) <> nil then
      IUnknown(n.Dta^).Release;
    {$ENDIF}
    IUnknown(n.Dta^) := nil;
  end else
  {$ENDIF}
    Pointer(n.Dta^) := nil;
  result := True;
end;
function IntfCallProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  i: Integer;
  MyList: TPSList;
  n: TPSVariantIFC;
  n2: PPSVariantIFC;
  FSelf: Pointer;
  CurrStack: Cardinal;
  cc: TPSCallingConvention;
  s: tbtString;
begin
  s := p.Decl;
  if length(S) < 2 then
  begin
    Result := False;
    exit;
  end;
  cc := TPSCallingConvention(s[1]);
  Delete(s, 1, 1);
  if s[1] = #0 then
    n := NewTPSVariantIFC(Stack[Stack.Count -1], false)
  else
    n := NewTPSVariantIFC(Stack[Stack.Count -2], false);
  if (n.dta = nil) or (n.atype.BaseType <> btInterface) or (Pointer(n.Dta^) = nil) then
  begin
    Caller.CMD_Err(erNullPointerException);
    result := false;
    exit;
  end;
  FSelf := Pointer(n.dta^);
  CurrStack := Cardinal(Stack.Count) - Cardinal(length(s)) -1;
  if s[1] = #0 then inc(CurrStack);
  MyList := TPSList.Create;
  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    MyList[i - 2] := NewPPSVariantIFC(Stack[CurrStack], s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    n2 := NewPPSVariantIFC(Stack[CurrStack + 1], True);
  end else n2 := nil;
  try
    Caller.InnerfuseCall(FSelf, Pointer(Pointer(IPointer(FSelf^) + (Cardinal(p.Ext1) * Sizeof(Pointer)))^), cc, MyList, n2);
    result := true;
  finally
    DisposePPSVariantIFC(n2);
    DisposePPSVariantIFCList(MyList);
  end;
end;


function InterfaceProc(Sender: TPSExec; p: TPSExternalProcRec; Tag: Pointer): Boolean;
var
  s: tbtString;
begin
  s := p.Decl;
  delete(s,1,5); // delete 'intf:'
  if s = '' then
  begin
    Result := False;
    exit;
  end;
  if s[1] = '.'then
  begin
    Delete(s,1,1);
    if length(S) < 6 then
    begin
      Result := False;
      exit;
    end;
    p.ProcPtr := IntfCallProc;
    p.Ext1 := Pointer((@s[1])^); // Proc Offset
    Delete(s,1,4);
    P.Decl := s;
    Result := True;
  end else Result := False;
end;


function getMethodNo(P: TMethod; SE: TPSExec): Cardinal;
begin
  if (p.Code <> @MyAllMethodsHandler) or (p.Data = nil)or (PScriptMethodInfo(p.Data)^.Se <> se)  then
    Result := 0
  else
  begin
    Result := PScriptMethodInfo(p.Data)^.ProcNo;
  end;
end;

function ClassCallProcProperty(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  n: TPSVariantIFC;
  ltemp: Longint;
  FSelf: Pointer;
  m: TMethod;
begin
  try
    if p.Ext2 = Pointer(0) then
    begin
      n := NewTPSVariantIFC(Stack[Stack.Count -1], False);
      if (n.Dta = nil) or (n.aType.BaseType <> btclass)  then
      begin
        result := false;
        Caller.CMD_Err(erNullPointerException);
        exit;
      end;
      FSelf := Pointer(n.dta^);
      if FSelf = nil then
      begin
        Caller.CMD_Err(erCouldNotCallProc);
        Result := False;
        exit;
      end;
      n := NewTPSVariantIFC(Stack[Stack.Count -2], false);
      if (PPropInfo(p.Ext1)^.PropType^.Kind = tkMethod) and ((n.aType.BaseType = btu32) or (n.aType.BaseType = btProcPtr))then
      begin
        SetMethodProp(TObject(FSelf), PPropInfo(p.Ext1), MkMethod(Caller, tbtu32(n.dta^)));
      end else
      case n.aType.BaseType of
        btSet:
          begin
            ltemp := 0;
            move(Byte(n.Dta^), ltemp, TPSTypeRec_Set(n.aType).aByteSize);
            SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), ltemp);
          end;
        btChar, btU8: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbtu8(n.Dta^));
        btS8: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbts8(n.Dta^));
        {$IFNDEF PS_NOWIDESTRING}btwidechar, {$ENDIF}btU16: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbtu16(n.Dta^));
        btS16: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbts16(n.Dta^));
        btU32: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbtu32(n.Dta^));
        btS32: SetOrdProp(TObject(FSelf), PPropInfo(p.Ext1), tbts32(n.Dta^));
        btSingle: SetFloatProp(TObject(FSelf), p.Ext1, tbtsingle(n.Dta^));
        btDouble: SetFloatProp(TObject(FSelf), p.Ext1, tbtdouble(n.Dta^));
        btExtended: SetFloatProp(TObject(FSelf), p.Ext1, tbtextended(n.Dta^));
        btString: SetStrProp(TObject(FSelf), p.Ext1, string(tbtString(n.Dta^)));
        btPChar: SetStrProp(TObject(FSelf), p.Ext1, string(pansichar(n.Dta^)));
        btClass: SetOrdProp(TObject(FSelf), P.Ext1, Longint(n.Dta^));
	  {$IFDEF DELPHI6UP}
{$IFNDEF PS_NOWIDESTRING}
{$IFNDEF DELPHI2009UP}btUnicodeString,{$ENDIF}
  btWideString: SetWideStrProp(TObject(FSelf), P.Ext1, tbtWidestring(n.dta^));
{$IFDEF DELPHI2009UP}
  btUnicodeString: SetUnicodeStrProp(TObject(FSelf), P.Ext1, tbtUnicodestring(n.dta^));
{$ENDIF}
  {$ENDIF}
{$ENDIF}
        else
        begin
          Result := False;
          exit;
        end;
      end;
      Result := true;
    end else begin
      n := NewTPSVariantIFC(Stack[Stack.Count -2], False);
      if (n.dta = nil) or (n.aType.BaseType <> btClass)then
      begin
        result := false;
        Caller.CMD_Err(erNullPointerException);
        exit;
      end;
      FSelf := Pointer(n.dta^);
      if FSelf = nil then
      begin
        Caller.CMD_Err(erCouldNotCallProc);
        Result := False;
        exit;
      end;
      n := NewTPSVariantIFC(Stack[Stack.Count -1], false);
      if (PPropInfo(p.Ext1)^.PropType^.Kind = tkMethod) and ((n.aType.BaseType = btu32) or (n.aType.BaseType = btprocptr)) then
      begin
        m := GetMethodProp(TObject(FSelf), PPropInfo(p.Ext1));
        Cardinal(n.Dta^) := GetMethodNo(m, Caller);
        if Cardinal(n.dta^) = 0 then
        begin
          Pointer(Pointer((IPointer(n.dta)+PointerSize))^) := m.Data;
          Pointer(Pointer((IPointer(n.dta)+PointerSize2))^) := m.Code;
        end;
      end else
      case n.aType.BaseType of
        btSet:
          begin
            ltemp := GetOrdProp(TObject(FSelf), PPropInfo(p.Ext1));
            move(ltemp, Byte(n.Dta^), TPSTypeRec_Set(n.aType).aByteSize);
          end;
        btU8: tbtu8(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btS8: tbts8(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btU16: tbtu16(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btS16: tbts16(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btU32: tbtu32(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btS32: tbts32(n.Dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
        btSingle: tbtsingle(n.Dta^) := GetFloatProp(TObject(FSelf), p.Ext1);
        btDouble: tbtdouble(n.Dta^) := GetFloatProp(TObject(FSelf), p.Ext1);
        btExtended: tbtextended(n.Dta^) := GetFloatProp(TObject(FSelf), p.Ext1);
        btString: tbtString(n.Dta^) := tbtString(GetStrProp(TObject(FSelf), p.Ext1));
        btClass: Longint(n.dta^) := GetOrdProp(TObject(FSelf), p.Ext1);
	  {$IFDEF DELPHI6UP}
{$IFNDEF PS_NOWIDESTRING}
        {$IFDEF DELPHI2009UP}
        btUnicodeString: tbtUnicodeString(n.dta^) := GetUnicodeStrProp(TObject(FSelf), P.Ext1);
        {$ELSE}
        btUnicodeString,
        {$ENDIF}
        btWideString: tbtWidestring(n.dta^) := GetWideStrProp(TObject(FSelf), P.Ext1);
{$ENDIF}
{$ENDIF}
      else
        begin
          Result := False;
          exit;
        end;
      end;
      Result := True;
    end;
  finally
  end;
end;

function ClassCallProcPropertyHelper(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  I, ParamCount: Longint;
  Params: TPSList;
  n: TPSVariantIFC;
  FSelf: Pointer;
begin
  if Length(P.Decl) < 4 then begin
    Result := False;
    exit;
  end;
  ParamCount := Longint((@P.Decl[1])^);
  if Longint(Stack.Count) < ParamCount +1 then begin
    Result := False;
    exit;
  end;
  Dec(ParamCount);
  if p.Ext1 <> nil then // read
  begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 2], False);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := pointer(n.Dta^);
    if FSelf = nil then
    begin
      Caller.CMD_Err(erCouldNotCallProc);
      Result := False;
      exit;
    end;
    Params := TPSList.Create;
    Params.Add(NewPPSVariantIFC(Stack[Longint(Stack.Count) - 1], True));
    for i := Stack.Count -3 downto Longint(Stack.Count) - ParamCount -2 do
    begin
      Params.Add(NewPPSVariantIFC(Stack[I], False));
    end;
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext1, cdRegister, Params, nil);
    finally
      DisposePPSVariantIFCList(Params);
    end;
  end else begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 1], False);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := pointer(n.Dta^);
    if FSelf = nil then
    begin
      Caller.CMD_Err(erCouldNotCallProc);
      Result := False;
      exit;
    end;
    Params := TPSList.Create;
    Params.Add(NewPPSVariantIFC(Stack[Longint(Stack.Count) - ParamCount - 2], False));

    for i := Stack.Count -2 downto Longint(Stack.Count) - ParamCount -1 do
    begin
      Params.Add(NewPPSVariantIFC(Stack[I], False));
    end;
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext2, cdregister, Params, nil);
    finally
      DisposePPSVariantIFCList(Params);
    end;
  end;
end;

function ClassCallProcPropertyHelperName(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
var
  I, ParamCount: Longint;
  Params: TPSList;
  tt: PIFVariant;
  n: TPSVariantIFC;
  FSelf: Pointer;
begin
  if Length(P.Decl) < 4 then begin
    Result := False;
    exit;
  end;
  ParamCount := Longint((@P.Decl[1])^);
  if Longint(Stack.Count) < ParamCount +1 then begin
    Result := False;
    exit;
  end;
  Dec(ParamCount);
  if p.Ext1 <> nil then // read
  begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 2], false);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := Tobject(n.dta^);
    Params := TPSList.Create;
    Params.Add(NewPPSVariantIFC(Stack[Longint(Stack.Count) - 1], True));
    for i := Stack.Count -3 downto Longint(Stack.Count) - ParamCount -2 do
      Params.Add(NewPPSVariantIFC(Stack[I], False));
    tt := CreateHeapVariant(Caller.FindType2(btString));
    if tt <> nil then
    begin
      PPSVariantAString(tt).Data := p.Name;
      Params.Add(NewPPSVariantIFC(tt, false));
    end;
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext1, cdRegister, Params, nil);
    finally
      DestroyHeapVariant(tt);
      DisposePPSVariantIFCList(Params);
    end;
  end else begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 1], false);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := Tobject(n.dta^);
    Params := TPSList.Create;
    Params.Add(NewPPSVariantIFC(Stack[Longint(Stack.Count) - 2], True));

    for i := Stack.Count -2 downto Longint(Stack.Count) - ParamCount -1 do
    begin
      Params.Add(NewPPSVariantIFC(Stack[I], false));
    end;
    tt := CreateHeapVariant(Caller.FindType2(btString));
    if tt <> nil then
    begin
      PPSVariantAString(tt).Data := p.Name;
      Params.Add(NewPPSVariantIFC(tt, false));
    end;
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext2, cdregister, Params, nil);
    finally
      DestroyHeapVariant(tt);
      DisposePPSVariantIFCList(Params);
    end;
  end;
end;



function ClassCallProcEventPropertyHelper(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
{Event property helper}
var
  I, ParamCount: Longint;
  Params: TPSList;
  n: TPSVariantIFC;
  data: TMethod;
  n2: PIFVariant;
  FSelf: Pointer;
begin
  if Length(P.Decl) < 4 then begin
    Result := False;
    exit;
  end;
  ParamCount := Longint((@P.Decl[1])^);
  if Longint(Stack.Count) < ParamCount +1 then begin
    Result := False;
    exit;
  end;
  Dec(ParamCount);
  if p.Ext1 <> nil then // read
  begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 2], false);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := Tobject(n.dta^);
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 1], True); // Result
    if (n.aType.BaseType <> btU32) and (n.aType.BaseType <> btProcPtr) then
    begin
      Result := False;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    n2 := CreateHeapVariant(Caller.FindType2(btPChar));
    if n2 = nil then
    begin
      Result := False;
      exit;
    end;
    Params := TPSList.Create;
//{$IFDEF CPU64}
//{$ELSE}
    data.Code := nil;
    data.Data := nil;
//{$ENDIF}
    PPSVariantDynamicArray(n2)^.Data:= @data;
    Params.Add(NewPPSVariantIFC(n2, false));
    for i := Stack.Count -3 downto Longint(Stack.Count) - ParamCount -2 do
      Params.Add(NewPPSVariantIFC(Stack[i], False));
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext1, cdRegister, Params, nil);
    finally
      Cardinal(n.Dta^) := getMethodNo(data, Caller);
      if Cardinal(n.Dta^) = 0 then
      begin
        Pointer(Pointer((IPointer(n.dta)+PointerSize))^) := data.Data;
        Pointer(Pointer((IPointer(n.dta)+PointerSize2))^) := data.Code;
      end;
      DestroyHeapVariant(n2);
      DisposePPSVariantIFCList(Params);
    end;
  end else begin
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 1], false);
    if (n.Dta = nil) or (n.aType.BaseType <> btClass) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    FSelf := Tobject(n.dta^);
    n := NewTPSVariantIFC(Stack[Longint(Stack.Count) - 2], false);
    if (n.Dta = nil) or ((n.aType.BaseType <> btu32) and (n.aType.BaseType <> btProcPtr)) then
    begin
      result := false;
      Caller.CMD_Err(erNullPointerException);
      exit;
    end;
    n2 := CreateHeapVariant(Caller.FindType2(btPchar));
    if n2 = nil then
    begin
      Result := False;
      exit;
    end;

    if (n.aType.BaseType = btProcPtr) and (cardinal(n.dta^) = 0) then
      data := TMethod(Pointer(IPointer(n.dta^)+4)^)
    else
      data := MkMethod(Caller, cardinal(n.dta^));
    Params := TPSList.Create;
    Params.Add(NewPPSVariantIFC(n2, False));

    for i := Stack.Count -2 downto Longint(Stack.Count) - ParamCount -1 do
    begin
      Params.Add(NewPPSVariantIFC(Stack[I], False));
    end;
    try
      Result := Caller.InnerfuseCall(FSelf, p.Ext2, cdregister, Params, nil);
    finally
      DestroyHeapVariant(n2);
      DisposePPSVariantIFCList(Params);
    end;
  end;
end;


{'class:'+CLASSNAME+'|'+FUNCNAME+'|'+chr(CallingConv)+chr(hasresult)+params

For property write functions there is an '@' after the funcname.
}
function SpecImport(Sender: TPSExec; p: TPSExternalProcRec; Tag: Pointer): Boolean;
var
  H, I: Longint;
  S, s2: tbtString;
  CL: TPSRuntimeClass;
  Px: PClassItem;
  pp: PPropInfo;
  IsRead: Boolean;
begin
  s := p.Decl;
  delete(s, 1, 6);
  if s = '-' then {nil function}
  begin
    p.ProcPtr := NilProc;
    Result := True;
    exit;
  end;
  if s = '+' then {cast function}
  begin
    p.ProcPtr := CastProc;
    p.Ext2 := Tag;
    Result := True;
    exit;
  end;
  s2 := copy(S, 1, pos(tbtchar('|'), s)-1);
  delete(s, 1, length(s2) + 1);
  H := MakeHash(s2);
  ISRead := False;
  cl := nil;
  for I := TPSRuntimeClassImporter(Tag).FClasses.Count -1 downto 0 do
  begin
    Cl := TPSRuntimeClassImporter(Tag).FClasses[I];
    if (Cl.FClassNameHash = h) and (cl.FClassName = s2) then
    begin
      IsRead := True;
      break;
    end;
  end;
  if not isRead then begin
    Result := False;
    exit;
  end;
  s2 := copy(S, 1, pos(tbtchar('|'), s)-1);
  delete(s, 1, length(s2) + 1);
  if (s2 <> '') and (s2[length(s2)] = '@') then
  begin
    IsRead := False;
    Delete(S2, length(s2), 1);
  end else
    isRead := True;
  p.Name := s2;
  H := MakeHash(s2);
  for i := cl.FClassItems.Count -1 downto 0 do
  begin
    px := cl.FClassItems[I];
    if (px^.FNameHash = h) and (px^.FName = s2) then
    begin
      p.Decl := s;
      case px^.b of
  {0: ext1=ptr}
  {1: ext1=pointerinlist}
  {2: ext1=propertyinfo}
  {3: ext1=readfunc; ext2=writefunc}
        4:
          begin
            p.ProcPtr := ClassCallProcConstructor;
            p.Ext1 := px^.Ptr;
            if p.Ext1 = nil then begin result := false; exit; end;
            p.Ext2 := Tag;
          end;
        5:
          begin
            p.ProcPtr := ClassCallProcVirtualConstructor;
            p.Ext1 := px^.Ptr;
           if p.Ext1 = nil then begin result := false; exit; end;
            p.Ext2 := Tag;
          end;
        6:
          begin
            p.ProcPtr := ClassCallProcEventPropertyHelper;
            if IsRead then
            begin
              p.Ext1 := px^.FReadFunc;
              if p.Ext1 = nil then begin result := false; exit; end;
              p.Ext2 := nil;
            end else
            begin
              p.Ext1 := nil;
              p.Ext2 := px^.FWriteFunc;
              if p.Ext2 = nil then begin result := false; exit; end;
            end;
          end;
        0:
          begin
            p.ProcPtr := ClassCallProcMethod;
            p.Ext1 := px^.Ptr;
            if p.Ext1 = nil then begin result := false; exit; end;
            p.Ext2 := nil;
          end;
        1:
          begin
            p.ProcPtr := ClassCallProcMethod;
            p.Ext1 := px^.PointerInList;
            //if p.Ext1 = nil then begin result := false; exit; end;
            p.ext2 := pointer(1);
          end;
        3:
          begin
            p.ProcPtr := ClassCallProcPropertyHelper;
            if IsRead then
            begin
              p.Ext1 := px^.FReadFunc;
              if p.Ext1 = nil then begin result := false; exit; end;
              p.Ext2 := nil;
            end else
            begin
              p.Ext1 := nil;
              p.Ext2 := px^.FWriteFunc;
              if p.Ext2 = nil then begin result := false; exit; end;
            end;
          end;
        7:
          begin
            p.ProcPtr := ClassCallProcPropertyHelperName;
            if IsRead then
            begin
              p.Ext1 := px^.FReadFunc;
              if p.Ext1 = nil then begin result := false; exit; end;
              p.Ext2 := nil;
            end else
            begin
              p.Ext1 := nil;
              p.Ext2 := px^.FWriteFunc;
              if p.Ext2 = nil then begin result := false; exit; end;
            end;
          end;
        else
         begin
           result := false;
           exit;
         end;
      end;
      Result := true;
      exit;
    end;
  end;
  if cl.FClass.ClassInfo <> nil then
  begin
    pp := GetPropInfo(cl.FClass.ClassInfo, string(s2));
    if pp <> nil then
    begin
       p.ProcPtr := ClassCallProcProperty;
       p.Ext1 := pp;
       if IsRead then
         p.Ext2 := Pointer(1)
       else
         p.Ext2 := Pointer(0);
       Result := True;
    end else
      result := false;
  end else
    Result := False;
end;

procedure RegisterClassLibraryRuntime(SE: TPSExec; Importer: TPSRuntimeClassImporter);
begin
  SE.AddSpecialProcImport('class', SpecImport, Importer);
end;


procedure TPSExec.ClearspecialProcImports;
var
  I: Longint;
  P: PSpecialProc;
begin
  for I := FSpecialProcList.Count -1 downto 0 do
  begin
    P := FSpecialProcList[I];
    Dispose(p);
  end;
  FSpecialProcList.Clear;
end;

procedure TPSExec.RaiseCurrentException;
var
  ExObj: TObject;
begin
  if ExEx = erNoError then exit; // do nothing
  ExObj := Self.ExObject;
  if ExObj <> nil then
  begin
    Self.ExObject := nil;
    raise ExObj;
  end;
  raise EPSException.Create(PSErrorToString(ExceptionCode, ExceptionString), Self, ExProc, ExPos);
end;

procedure TPSExec.CMD_Err2(EC: TPSError; const Param: tbtString);
begin
  CMD_Err3(EC, Param, Nil);
end;

function TPSExec.GetProcAsMethod(const ProcNo: Cardinal): TMethod;
begin
  Result := MkMethod(Self, ProcNo);
end;

function TPSExec.GetProcAsMethodN(const ProcName: tbtString): TMethod;
var
  procno: Cardinal;
begin
  Procno := GetProc(ProcName);
  if Procno = InvalidVal then
  begin
    Result.Code := nil;
    Result.Data := nil;
  end
  else
    Result := MkMethod(Self, procno)
end;


procedure TPSExec.RegisterAttributeType(useproc: TPSAttributeUseProc;
  const TypeName: tbtString);
var
  att: TPSAttributeType;
begin
  att := TPSAttributeType.Create;
  att.TypeName := TypeName;
  att.TypeNameHash := MakeHash(TypeName);
  att.UseProc := UseProc;
  FAttributeTypes.Add(att);
end;

function TPSExec.GetProcCount: Cardinal;
begin
  Result := FProcs.Count;
end;

function TPSExec.GetTypeCount: Longint;
begin
  Result := FTypes.Count;
end;

function TPSExec.GetVarCount: Longint;
begin
  Result := FGlobalVars.Count;
end;

function TPSExec.FindSpecialProcImport(
  P: TPSOnSpecialProcImport): pointer;
var
  i: Longint;
  pr: PSpecialProc;
begin
  for i := FSpecialProcList.Count -1 downto 0 do
  begin
    pr := FSpecialProcList[i];
    if @pr.P = @p then
    begin
      Result := pr.tag;
      exit;
    end;
  end;
  result := nil;
end;

function TPSExec.InvokeExternalMethod(At: TPSTypeRec_ProcPtr; Slf,
  Ptr: Pointer): Boolean;
var
  res: PPSVariantIFC;
  s: tbtString;
  CurrStack, i: Longint;
  n: PPSVariant;
  MyList: TPSList;
begin
  s := TPSTypeRec_ProcPtr(at).ParamInfo;
  CurrStack := Cardinal(FStack.Count) - Cardinal(length(s));
  if s[1] = #0 then inc(CurrStack);
  MyList := TPSList.Create;
  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    n := FStack[CurrStack];
    MyList[i - 2] := NewPPSVariantIFC(n, s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    res := NewPPSVariantIFC(FStack[CurrStack + 1], True);
  end else res := nil;
  Result := InnerfuseCall(Slf, Ptr, cdRegister, MyList, Res);

  DisposePPSVariantIFC(res);
  DisposePPSVariantIFCList(mylist);
end;

function TPSExec.LastEx: TPSError;
var
  pp: TPSExceptionHandler;
begin
  if FExceptionStack.Count = 0 then begin
    result := ExEx;
    exit;
  end;
  pp := fExceptionStack[fExceptionStack.Count-1];
  result := pp.ExceptionData;
end;

function TPSExec.LastExParam: tbtString;
begin
  result := ExParam;
end;

function TPSExec.LastExPos: Integer;
begin
  result := ExPos;
end;

function TPSExec.LastExProc: Integer;
begin
  result := exProc;
end;

{ TPSRuntimeClass }

constructor TPSRuntimeClass.Create(aClass: TClass; const AName: tbtString);
begin
  inherited Create;
  FClass := AClass;
  if AName = '' then
  begin
    FClassName := FastUpperCase(tbtString(aClass.ClassName));
    FClassNameHash := MakeHash(FClassName);
  end else begin
    FClassName := FastUppercase(AName);
    FClassNameHash := MakeHash(FClassName);
  end;
  FClassItems:= TPSList.Create;
  FEndOfVmt := MaxInt;
end;

destructor TPSRuntimeClass.Destroy;
var
  I: Longint;
  P: PClassItem;
begin
  for i:= FClassItems.Count -1 downto 0 do
  begin
    P := FClassItems[I];
    Dispose(p);
  end;
  FClassItems.Free;
  inherited Destroy;
end;

procedure TPSRuntimeClass.RegisterVirtualAbstractMethod(ClassDef: TClass;
  ProcPtr: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 1;
  p^.PointerInList := FindVirtualMethodPtr(Self, ClassDef, ProcPtr);
  FClassItems.Add(p);
end;

procedure TPSRuntimeClass.RegisterConstructor(ProcPtr: Pointer;
  const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 4;
  p^.Ptr := ProcPtr;
  FClassItems.Add(p);
end;

procedure TPSRuntimeClass.RegisterMethod(ProcPtr: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 0;
  p^.Ptr := ProcPtr;
  FClassItems.Add(p);
end;


procedure TPSRuntimeClass.RegisterPropertyHelper(ReadFunc,
  WriteFunc: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 3;
  p^.FReadFunc := ReadFunc;
  p^.FWriteFunc := WriteFunc;
  FClassItems.Add(p);
end;

procedure TPSRuntimeClass.RegisterVirtualConstructor(ProcPtr: Pointer;
  const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 5;
  p^.PointerInList := FindVirtualMethodPtr(Self, FClass, ProcPtr);
  FClassItems.Add(p);
end;

procedure TPSRuntimeClass.RegisterVirtualMethod(ProcPtr: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 1;
  p^.PointerInList := FindVirtualMethodPtr(Self, FClass, ProcPtr);
  FClassItems.Add(p);
end;

procedure TPSRuntimeClass.RegisterEventPropertyHelper(ReadFunc,
  WriteFunc: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 6;
  p^.FReadFunc := ReadFunc;
  p^.FWriteFunc := WriteFunc;
  FClassItems.Add(p);
end;


procedure TPSRuntimeClass.RegisterPropertyHelperName(ReadFunc,
  WriteFunc: Pointer; const Name: tbtString);
var
  P: PClassItem;
begin
  New(P);
  p^.FName := FastUppercase(Name);
  p^.FNameHash := MakeHash(p^.FName);
  p^.b := 7;
  p^.FReadFunc := ReadFunc;
  p^.FWriteFunc := WriteFunc;
  FClassItems.Add(p);
end;

{ TPSRuntimeClassImporter }

function TPSRuntimeClassImporter.Add(aClass: TClass): TPSRuntimeClass;
begin
  Result := FindClass(tbtstring(aClass.ClassName));
  if Result <> nil then exit;
  Result := TPSRuntimeClass.Create(aClass, '');
  FClasses.Add(Result);
end;

function TPSRuntimeClassImporter.Add2(aClass: TClass;
  const Name: tbtString): TPSRuntimeClass;
begin
  Result := FindClass(Name);
  if Result <> nil then exit;
  Result := TPSRuntimeClass.Create(aClass, Name);
  FClasses.Add(Result);
end;

procedure TPSRuntimeClassImporter.Clear;
var
  I: Longint;
begin
  for i := 0 to FClasses.Count -1 do
  begin
    TPSRuntimeClass(FClasses[I]).Free;
  end;
  FClasses.Clear;
end;

constructor TPSRuntimeClassImporter.Create;
begin
  inherited Create;
  FClasses := TPSList.Create;

end;

constructor TPSRuntimeClassImporter.CreateAndRegister(Exec: TPSexec;
  AutoFree: Boolean);
begin
  inherited Create;
  FClasses := TPSList.Create;
  RegisterClassLibraryRuntime(Exec, Self);
  if AutoFree then
    Exec.AddResource(@RCIFreeProc, Self);
end;

destructor TPSRuntimeClassImporter.Destroy;
begin
  Clear;
  FClasses.Free;
  inherited Destroy;
end;

{$IFNDEF PS_NOINTERFACES}
procedure SetVariantToInterface(V: PIFVariant; Cl: IUnknown);
begin
  if (v <> nil) and (v.FType.BaseType = btInterface) then
  begin
    PPSVariantinterface(v).Data := cl;
    {$IFNDEF Delphi3UP}
    if PPSVariantinterface(v).Data <> nil then
      PPSVariantinterface(v).Data.AddRef;
    {$ENDIF}
  end;
end;
{$ENDIF}

procedure SetVariantToClass(V: PIFVariant; Cl: TObject);
begin
  if (v <> nil) and (v.FType.BaseType = btClass) then
  begin
    PPSVariantclass(v).Data := cl;
  end;
end;

function BGRFW(var s: tbtString): tbtString;
var
  l: Longint;
begin
  l := Length(s);
  while l >0 do
  begin
    if s[l] = ' ' then
    begin
      Result := copy(s, l + 1, Length(s) - l);
      Delete(s, l, Length(s) - l + 1);
      exit;
    end;
    Dec(l);
  end;
  Result := s;
  s := '';
end;

{$ifdef fpc}
  {$if defined(cpupowerpc) or defined(cpuarm) or defined(cpu64)}
    {$define empty_methods_handler}
  {$ifend}
{$endif}

{$ifdef empty_methods_handler}
procedure MyAllMethodsHandler;
begin
end;
{$else}


function MyAllMethodsHandler2(Self: PScriptMethodInfo; const Stack: PPointer; _EDX, _ECX: Pointer): Integer; forward;

procedure MyAllMethodsHandler;
//  On entry:
//     EAX = Self pointer
//     EDX, ECX = param1 and param2
//     STACK = param3... paramcount
asm
  push 0
  push ecx
  push edx
  mov edx, esp
  add edx, 16 // was 12
  pop ecx
  call MyAllMethodsHandler2
  pop ecx
  mov edx, [esp]
  add esp, eax
  mov [esp], edx
  mov eax, ecx
end;

function ResultAsRegister(b: TPSTypeRec): Boolean;
begin
  case b.BaseType of
    btSingle,
    btDouble,
    btExtended,
    btU8,
    bts8,
    bts16,
    btu16,
    bts32,
    btu32,
{$IFDEF PS_FPCSTRINGWORKAROUND}
    btString,
{$ENDIF}
{$IFNDEF PS_NOINT64}
    bts64,
{$ENDIF}
    btPChar,
{$IFNDEF PS_NOWIDESTRING}
    btWideChar,
{$ENDIF}
    btChar,
    btclass,
    btEnum: Result := true;
    btSet: Result := b.RealSize <= PointerSize;
    btStaticArray: Result := b.RealSize <= PointerSize;
  else
    Result := false;
  end;
end;

function SupportsRegister(b: TPSTypeRec): Boolean;
begin
  case b.BaseType of
    btU8,
    bts8,
    bts16,
    btu16,
    bts32,
    btu32,
    btstring,
    btclass,
{$IFNDEF PS_NOINTERFACES}
    btinterface,
{$ENDIF}
    btPChar,
{$IFNDEF PS_NOWIDESTRING}
    btwidestring,
    btUnicodeString,
    btWideChar,
{$ENDIF}
    btChar,
    btArray,
    btEnum: Result := true;
    btSet: Result := b.RealSize <= PointerSize;
    btStaticArray: Result := b.RealSize <= PointerSize;
  else
    Result := false;
  end;
end;

function AlwaysAsVariable(aType: TPSTypeRec): Boolean;
begin
  case atype.BaseType of
    btVariant: Result := true;
    btSet: Result := atype.RealSize > PointerSize;
    btRecord: Result := atype.RealSize > PointerSize;
    btStaticArray: Result := atype.RealSize > PointerSize;
  else
    Result := false;
  end;
end;


procedure PutOnFPUStackExtended(ft: extended);
asm
//  fstp tbyte ptr [ft]
  fld tbyte ptr [ft]

end;


function MyAllMethodsHandler2(Self: PScriptMethodInfo; const Stack: PPointer; _EDX, _ECX: Pointer): Integer;
var
  Decl: tbtString;
  I, C, regno: Integer;
  Params: TPSList;
  Res, Tmp: PIFVariant;
  cpt: PIFTypeRec;
  fmod: tbtchar;
  s,e: tbtString;
  FStack: pointer;
  ex: TPSExceptionHandler;


begin
  Decl := TPSInternalProcRec(Self^.Se.FProcs[Self^.ProcNo]).ExportDecl;

  FStack := Stack;
  Params := TPSList.Create;
  s := decl;
  grfw(s);
  while s <> '' do
  begin
    Params.Add(nil);
    grfw(s);
  end;
  c := Params.Count;
  regno := 0;
  Result := 0;
  s := decl;
  grfw(s);
  for i := c-1 downto 0 do
  begin
    e := grfw(s);
    fmod := e[1];
    delete(e, 1, 1);
    cpt := Self.Se.GetTypeNo(StrToInt(e));
    if ((fmod = '%') or (fmod = '!') or (AlwaysAsVariable(cpt))) and (RegNo < 2) then
    begin
      tmp := CreateHeapVariant(self.Se.FindType2(btPointer));
      PPSVariantPointer(tmp).DestType := cpt;
      Params[i] := tmp;
      case regno of
        0: begin
            PPSVariantPointer(tmp).DataDest := Pointer(_EDX);
            inc(regno);
          end;
        1: begin
            PPSVariantPointer(tmp).DataDest := Pointer(_ECX);
            inc(regno);
          end;
(*        else begin
            PPSVariantPointer(tmp).DataDest := Pointer(FStack^);
            FStack := Pointer(IPointer(FStack) + 4);
          end;*)
      end;
    end
    else if SupportsRegister(cpt) and (RegNo < 2) then
    begin
      tmp := CreateHeapVariant(cpt);
      Params[i] := tmp;
      case regno of
        0: begin
            CopyArrayContents(@PPSVariantData(tmp)^.Data, @_EDX, 1, cpt);
            inc(regno);
          end;
        1: begin
            CopyArrayContents(@PPSVariantData(tmp)^.Data, @_ECX, 1, cpt);
            inc(regno);
          end;
(*        else begin
            CopyArrayContents(@PPSVariantData(tmp)^.Data, Pointer(FStack), 1, cpt);
            FStack := Pointer(IPointer(FStack) + 4);
          end;*)
      end;
(*    end else
    begin
      tmp := CreateHeapVariant(cpt);
      Params[i] := tmp;
      CopyArrayContents(@PPSVariantData(tmp)^.Data, Pointer(FStack), 1, cpt);
      FStack := Pointer(IPointer(FStack) + cpt.RealSize + 3 and not 3);*)
    end;
  end;
  s := decl;
  e := grfw(s);

  if e <> '-1' then
  begin
    cpt := Self.Se.GetTypeNo(StrToInt(e));
    if not ResultAsRegister(cpt) then
    begin
      Res := CreateHeapVariant(Self.Se.FindType2(btPointer));
      PPSVariantPointer(Res).DestType := cpt;
      Params.Add(Res);
      case regno of
        0: begin
            PPSVariantPointer(Res).DataDest := Pointer(_EDX);
          end;
        1: begin
            PPSVariantPointer(Res).DataDest := Pointer(_ECX);
          end;
        else begin
            PPSVariantPointer(Res).DataDest := Pointer(FStack^);
            Inc(Result, PointerSize);
          end;
      end;
    end else
    begin
      Res := CreateHeapVariant(cpt);
      Params.Add(Res);
    end;
  end else Res := nil;
  s := decl;
  grfw(s);
  for i := 0 to c -1 do
  begin
    e := grlw(s);
    fmod := e[1];
    delete(e, 1, 1);
    if Params[i] <> nil then Continue;
    cpt := Self.Se.GetTypeNo(StrToInt(e));
    if (fmod = '%') or (fmod = '!') or (AlwaysAsVariable(cpt)) then
    begin
      tmp := CreateHeapVariant(self.Se.FindType2(btPointer));
      PPSVariantPointer(tmp).DestType := cpt;
      Params[i] := tmp;
      PPSVariantPointer(tmp).DataDest := Pointer(FStack^);
      FStack := Pointer(IPointer(FStack) + PointerSize);
      Inc(Result, PointerSize);
    end
(*    else if SupportsRegister(cpt) then
    begin
      tmp := CreateHeapVariant(cpt);
      Params[i] := tmp;
      CopyArrayContents(@PPSVariantData(tmp)^.Data, Pointer(FStack), 1, cpt);
      FStack := Pointer(IPointer(FStack) + 4);
      end;
    end *)else
    begin
      tmp := CreateHeapVariant(cpt);
      Params[i] := tmp;
      CopyArrayContents(@PPSVariantData(tmp)^.Data, Pointer(FStack), 1, cpt);
      FStack := Pointer((IPointer(FStack) + cpt.RealSize + 3) and not 3);
      Inc(Result, (cpt.RealSize + 3) and not 3);
    end;
  end;
  ex := TPSExceptionHandler.Create;
  ex.FinallyOffset := InvalidVal;
  ex.ExceptOffset := InvalidVal;
  ex.Finally2Offset := InvalidVal;
  ex.EndOfBlock := InvalidVal;
  ex.CurrProc := nil;
  ex.BasePtr := Self.Se.FCurrStackBase;
  Ex.StackSize := Self.Se.FStack.Count;
  i :=  Self.Se.FExceptionStack.Add(ex);
  Self.Se.RunProc(Params, Self.ProcNo);
  if Self.Se.FExceptionStack[i] = ex then
  begin
    Self.Se.FExceptionStack.Remove(ex);
    ex.Free;
  end;

  if (Res <> nil) then
  begin
    Params.DeleteLast;
    if (ResultAsRegister(Res.FType)) then
    begin
      if (res^.FType.BaseType = btSingle) or (res^.FType.BaseType = btDouble) or
      (res^.FType.BaseType = btCurrency) or (res^.Ftype.BaseType = btExtended) then
      begin
        case Res^.FType.BaseType of
          btSingle: PutOnFPUStackExtended(PPSVariantSingle(res).Data);
          btDouble: PutOnFPUStackExtended(PPSVariantDouble(res).Data);
          btExtended: PutOnFPUStackExtended(PPSVariantExtended(res).Data);
          btCurrency: PutOnFPUStackExtended(PPSVariantCurrency(res).Data);
        end;
        DestroyHeapVariant(Res);
        Res := nil;
      end else
      begin
{$IFNDEF PS_NOINT64}
        if res^.FType.BaseType <> btS64 then
{$ENDIF}
          CopyArrayContents(Pointer(Longint(Stack)-PointerSize2), @PPSVariantData(res)^.Data, 1, Res^.FType);
      end;
    end;
    DestroyHeapVariant(res);
  end;
  for i := 0 to Params.Count -1 do
    DestroyHeapVariant(Params[i]);
  Params.Free;
  if Self.Se.ExEx <> erNoError then
  begin
    if Self.Se.ExObject <> nil then
    begin
      FStack := Self.Se.ExObject;
      Self.Se.ExObject := nil;
      raise TObject(FStack);
    end else
      raise EPSException.Create(PSErrorToString(Self.SE.ExceptionCode, Self.Se.ExceptionString), Self.Se, Self.Se.ExProc, Self.Se.ExPos);
  end;
end;
{$endif}
function TPSRuntimeClassImporter.FindClass(const Name: tbtString): TPSRuntimeClass;
var
  h, i: Longint;
  lName: tbtstring;
  p: TPSRuntimeClass;
begin
  lName := FastUpperCase(Name);
  h := MakeHash(lName);
  for i := FClasses.Count -1 downto 0 do
  begin
    p := FClasses[i];
    if (p.FClassNameHash = h) and (p.FClassName = lName) then
    begin
      Result := P;
      exit;
    end;
  end;
  Result := nil;
end;

function DelphiFunctionProc(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack; CC: TPSCallingConvention): Boolean;
var
  i: Integer;
  MyList: TPSList;
  n: PPSVariantIFC;
  CurrStack: Cardinal;
  s: tbtString;
begin
  s := P.Decl;
  if length(s) = 0 then begin Result := False; exit; end;
  CurrStack := Cardinal(Stack.Count) - Cardinal(length(s));
  if s[1] = #0 then inc(CurrStack);
  MyList := TPSList.Create;

  for i := 2 to length(s) do
  begin
    MyList.Add(nil);
  end;
  for i := length(s) downto 2 do
  begin
    MyList[i - 2] := NewPPSVariantIFC(Stack[CurrStack], s[i] <> #0);
    inc(CurrStack);
  end;
  if s[1] <> #0 then
  begin
    n := NewPPSVariantIFC(Stack[CurrStack], True);
  end else n := nil;
  try
    result := Caller.InnerfuseCall(p.Ext2, p.Ext1, cc, MyList, n);
  finally
    DisposePPSVariantIFC(n);
    DisposePPSVariantIFCList(mylist);
  end;
end;

function DelphiFunctionProc_CDECL(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
begin
  Result := DelphiFunctionProc(Caller, p, Global, Stack, cdCdecl);
end;
function DelphiFunctionProc_Register(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
begin
  Result := DelphiFunctionProc(Caller, p, Global, Stack, cdRegister);
end;
function DelphiFunctionProc_Pascal(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
begin
  Result := DelphiFunctionProc(Caller, p, Global, Stack, cdPascal);
end;
function DelphiFunctionProc_Stdcall(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
begin
  Result := DelphiFunctionProc(Caller, p, Global, Stack, cdStdCall);
end;
function DelphiFunctionProc_Safecall(Caller: TPSExec; p: TPSExternalProcRec; Global, Stack: TPSStack): Boolean;
begin
  Result := DelphiFunctionProc(Caller, p, Global, Stack, cdSafeCall);
end;

procedure TPSExec.RegisterDelphiFunction(ProcPtr: Pointer;
  const Name: tbtString; CC: TPSCallingConvention);
begin
  RegisterDelphiMethod(nil, ProcPtr, FastUppercase(Name), CC);
end;

procedure TPSExec.RegisterDelphiMethod(Slf, ProcPtr: Pointer;
  const Name: tbtString; CC: TPSCallingConvention);
begin
  case cc of
    cdRegister: RegisterFunctionName(FastUppercase(Name), DelphiFunctionProc_Register, ProcPtr, Slf);
    cdPascal: RegisterFunctionName(FastUppercase(Name), DelphiFunctionProc_Pascal, ProcPtr, Slf);
    cdStdCall: RegisterFunctionName(FastUppercase(Name), DelphiFunctionProc_Stdcall, ProcPtr, Slf);
    cdSafeCall: RegisterFunctionName(FastUppercase(Name), DelphiFunctionProc_Safecall, ProcPtr, Slf);
    cdCdecl: RegisterFunctionName(FastUppercase(Name), DelphiFunctionProc_CDECL, ProcPtr, Slf);
  end;
end;

{ EPSException }

constructor EPSException.Create(const Error: tbtString; Exec: TPSExec;
  Procno, ProcPos: Cardinal);
begin
 inherited Create(string(Error));
 FExec := Exec;
 FProcNo := Procno;
 FProcPos := ProcPos;
end;

{ TPSRuntimeAttribute }

function TPSRuntimeAttribute.AddValue(aType: TPSTypeRec): PPSVariant;
begin
  Result := FValues.PushType(aType);
end;

procedure TPSRuntimeAttribute.AdjustSize;
begin
  FValues.Capacity := FValues.Length;
end;

constructor TPSRuntimeAttribute.Create(Owner: TPSRuntimeAttributes);
begin
  inherited Create;
  FOwner := Owner;
  FValues := TPSStack.Create;
end;

procedure TPSRuntimeAttribute.DeleteValue(i: Longint);
begin
  if Cardinal(i) <> Cardinal(FValues.Count -1) then
    raise Exception.Create(RPS_CanOnlySendLastItem);
  FValues.Pop;
end;

destructor TPSRuntimeAttribute.Destroy;
begin
  FValues.Free;
  inherited Destroy;
end;

function TPSRuntimeAttribute.GetValue(I: Longint): PIFVariant;
begin
  Result := FValues[i];
end;

function TPSRuntimeAttribute.GetValueCount: Longint;
begin
  Result := FValues.Count;
end;

{ TPSRuntimeAttributes }

function TPSRuntimeAttributes.Add: TPSRuntimeAttribute;
begin
  Result := TPSRuntimeAttribute.Create(Self);
  FAttributes.Add(Result);
end;

constructor TPSRuntimeAttributes.Create(AOwner: TPSExec);
begin
  inherited Create;
  FAttributes := TPSList.Create;
  FOwner := AOwner;
end;

procedure TPSRuntimeAttributes.Delete(I: Longint);
begin
  TPSRuntimeAttribute(FAttributes[i]).Free;
  FAttributes.Delete(i);
end;

destructor TPSRuntimeAttributes.Destroy;
var
  i: Longint;
begin
  for i := FAttributes.Count -1 downto 0 do
    TPSRuntimeAttribute(FAttributes[i]).Free;
  FAttributes.Free;
  inherited Destroy;
end;

function TPSRuntimeAttributes.FindAttribute(
  const Name: tbtString): TPSRuntimeAttribute;
var
  n: tbtString;
  i, h: Longint;
begin
  n := FastUpperCase(Name);
  h := MakeHash(n);
  for i := 0 to FAttributes.Count -1 do
  begin
    Result := FAttributes[i];
    if (Result.AttribTypeHash = h) and (Result.AttribType = n) then
      exit;
  end;
  Result := nil;
end;

function TPSRuntimeAttributes.GetCount: Longint;
begin
   Result := FAttributes.Count;
end;

function TPSRuntimeAttributes.GetItem(I: Longint): TPSRuntimeAttribute;
begin
  Result := FAttributes[i];
end;

{ TPSInternalProcRec }

destructor TPSInternalProcRec.Destroy;
begin
  if FData <> nil then
    Freemem(Fdata, FLength);
  inherited Destroy;
end;

{ TPsProcRec }

constructor TPSProcRec.Create(Owner: TPSExec);
begin
  inherited Create;
  FAttributes := TPSRuntimeAttributes.Create(Owner);
end;

destructor TPSProcRec.Destroy;
begin
  FAttributes.Free;
  inherited Destroy;
end;

{ TPSTypeRec_Array }

procedure TPSTypeRec_Array.CalcSize;
begin
  FrealSize := PointerSize;
end;

{ TPSTypeRec_StaticArray }

procedure TPSTypeRec_StaticArray.CalcSize;
begin
  FrealSize := Cardinal(FArrayType.RealSize) * Cardinal(Size);
end;

{ TPSTypeRec_Set }

procedure TPSTypeRec_Set.CalcSize;
begin
  FrealSize := FByteSize;
end;

const
  MemDelta = 4096;

{ TPSStack }

procedure TPSStack.AdjustLength;
var
  MyLen: Longint;
begin
  MyLen := ((FLength shr 12) + 1) shl 12;

  SetCapacity(MyLen);
end;

procedure TPSStack.Clear;
var
  v: Pointer;
  i: Longint;
begin
  for i := Count -1 downto 0 do
  begin
    v := Data[i];
    if TPSTypeRec(v^).BaseType in NeedFinalization then
      FinalizeVariant(Pointer(IPointer(v)+PointerSize), TPSTypeRec(v^));
  end;
  inherited Clear;
  FLength := 0;
  SetCapacity(0);
end;

constructor TPSStack.Create;
begin
  inherited Create;
  GetMem(FDataPtr, MemDelta);
  FCapacity := MemDelta;
  FLength := 0;
end;

destructor TPSStack.Destroy;
var
  v: Pointer;
  i: Longint;
begin
  for i := Count -1 downto 0 do
  begin
    v := Data[i];
    if TPSTypeRec(v^).BaseType in NeedFinalization then
    FinalizeVariant(Pointer(IPointer(v)+PointerSize), Pointer(v^));
  end;
  FreeMem(FDataPtr, FCapacity);
  inherited Destroy;
end;

function TPSStack.GetBool(ItemNo: Longint): Boolean;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := Items[Longint(ItemNo) + Longint(Count)]
  else
    val := Items[ItemNo];
  Result := PSGetUInt(@PPSVariantData(val).Data, val.FType) <> 0;
end;

function TPSStack.GetClass(ItemNo: Longint): TObject;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := Items[Longint(ItemNo) + Longint(Count)]
  else
    val := Items[ItemNo];
  Result := PSGetObject(@PPSVariantData(val).Data, val.FType);
end;

function TPSStack.GetCurrency(ItemNo: Longint): Currency;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := Items[Longint(ItemNo) + Longint(Count)]
  else
    val := Items[ItemNo];
  Result := PSGetCurrency(@PPSVariantData(val).Data, val.FType);
end;

function TPSStack.GetInt(ItemNo: Longint): Longint;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetInt(@PPSVariantData(val).Data, val.FType);
end;

{$IFNDEF PS_NOINT64}
function TPSStack.GetInt64(ItemNo: Longint): Int64;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetInt64(@PPSVariantData(val).Data, val.FType);
end;
{$ENDIF}

function TPSStack.GetItem(I: Longint): PPSVariant;
begin
  if Cardinal(I) >= Cardinal(Count) then
    Result := nil
  else
    Result := Data[i];
end;

function TPSStack.GetReal(ItemNo: Longint): Extended;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetreal(@PPSVariantData(val).Data, val.FType);
end;

function TPSStack.GetAnsiString(ItemNo: Longint): tbtString;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetAnsiString(@PPSVariantData(val).Data, val.FType);
end;

function TPSStack.GetString(ItemNo: Longint): string; // calls the native method
begin
  result := {$IFDEF DELPHI2009UP}GetUnicodeString(ItemNo){$ELSE}GetAnsiString(ItemNo){$ENDIF};
end;

function TPSStack.GetUInt(ItemNo: Longint): Cardinal;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetUInt(@PPSVariantData(val).Data, val.FType);
end;

function TPSStack.GetUnicodeString(ItemNo: Integer): tbtunicodestring;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetUnicodeString(@PPSVariantData(val).Data, val.FType);
end;

{$IFNDEF PS_NOWIDESTRING}
function TPSStack.GetWideString(ItemNo: Longint): tbtWideString;
var
  val: PPSVariant;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  Result := PSGetWideString(@PPSVariantData(val).Data, val.FType);
end;
{$ENDIF}

procedure TPSStack.Pop;
var
  p1: Pointer;
  c: Longint;
begin
  c := count -1;
  p1 := Data[c];
  DeleteLast;
  FLength := IPointer(p1) - IPointer(FDataPtr);
  if TPSTypeRec(p1^).BaseType in NeedFinalization then
    FinalizeVariant(Pointer(IPointer(p1)+PointerSize), Pointer(p1^));
  if ((FCapacity - FLength) shr 12) > 2 then AdjustLength;
end;

function TPSStack.Push(TotalSize: Longint): PPSVariant;
var
  o: Cardinal;
  p: Pointer;
begin
  o := FLength;
  FLength := (FLength + TotalSize);
  if FLength mod PointerSize <> 0 then
    FLength := FLength + (PointerSize - (FLength mod PointerSize));
  if FLength > FCapacity then AdjustLength;
  p := Pointer(IPointer(FDataPtr) + IPointer(o));
  Add(p);
  Result := P;
end;

function TPSStack.PushType(aType: TPSTypeRec): PPSVariant;
var
  o: Cardinal;
  p: Pointer;
begin
  Result := Push(aType.RealSize + Sizeof(Pointer));
  Result.FType := aType;
  InitializeVariant(Pointer(IPointer(Result)+PointerSize), aType);
end;

procedure TPSStack.SetBool(ItemNo: Longint; const Data: Boolean);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  if Data then
    PSSetUInt(@PPSVariantData(val).Data, val.FType, ok, 1)
  else
    PSSetUInt(@PPSVariantData(val).Data, val.FType, ok, 0);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

procedure TPSStack.SetCapacity(const Value: Longint);
var
  p: Pointer;
  OOFS: IPointer;
  I: Longint;
begin
  if Value < FLength then raise Exception.Create(RPS_CapacityLength);
  if Value = 0 then
  begin
    if FDataPtr <> nil then
    begin
      FreeMem(FDataPtr, FCapacity);
      FDataPtr := nil;
    end;
    FCapacity := 0;
  end;
  GetMem(p, Value);
  if FDataPtr <> nil then
  begin
    if FLength > FCapacity then
      OOFS := FCapacity
    else
      OOFS := FLength;
    Move(FDataPtr^, p^, OOFS);
    OOFS := IPointer(P) - IPointer(FDataPtr);

    for i := Count -1 downto 0 do begin
      Data[i] := Pointer(IPointer(Data[i]) + OOFS);
      if Items[i].FType.FBaseType = btPointer then begin // check if pointer points to moved stack data
        if (IPointer(PPSVariantPointer(Data[i]).DataDest) >= IPointer(FDataPtr)) and
           (IPointer(PPSVariantPointer(Data[i]).DataDest) <  IPointer(FDataPtr)+IPointer(FLength)) then
          PPSVariantPointer(Data[i]).DataDest := Pointer(IPointer(PPSVariantPointer(Data[i]).DataDest) + OOFS);
      end;
    end;

    FreeMem(FDataPtr, FCapacity);
  end;
  FDataPtr := p;
  FCapacity := Value;
end;

procedure TPSStack.SetClass(ItemNo: Longint; const Data: TObject);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetObject(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

procedure TPSStack.SetCurrency(ItemNo: Longint; const Data: Currency);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetCurrency(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

procedure TPSStack.SetInt(ItemNo: Longint; const Data: Longint);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetInt(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

{$IFNDEF PS_NOINT64}
procedure TPSStack.SetInt64(ItemNo: Longint; const Data: Int64);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetInt64(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;
{$ENDIF}

procedure TPSStack.SetReal(ItemNo: Longint; const Data: Extended);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetReal(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

procedure TPSStack.SetAnsiString(ItemNo: Longint; const Data: tbtString);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetAnsiString(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;

procedure TPSStack.SetString(ItemNo: Longint; const Data: string);
begin
  {$IFDEF DELPHI2009UP}
  SetUnicodeString(ItemNo, Data);
  {$ELSE}
  SetAnsiString(ItemNo, Data);
  {$ENDIF}
end;


procedure TPSStack.SetUInt(ItemNo: Longint; const Data: Cardinal);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetUInt(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;


{$IFNDEF PS_NOWIDESTRING}
procedure TPSStack.SetUnicodeString(ItemNo: Integer;
  const Data: tbtunicodestring);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetUnicodeString(@PPSVariantData(val).Data, val.FType, ok, Data);
end;

procedure TPSStack.SetWideString(ItemNo: Longint;
  const Data: tbtWideString);
var
  val: PPSVariant;
  ok: Boolean;
begin
  if ItemNo < 0 then
    val := items[Longint(ItemNo) + Longint(Count)]
  else
    val := items[ItemNo];
  ok := true;
  PSSetWideString(@PPSVariantData(val).Data, val.FType, ok, Data);
  if not ok then raise Exception.Create(RPS_TypeMismatch);
end;
{$ENDIF}


{$IFNDEF PS_NOIDISPATCH}
var
  DispPropertyPut: Integer = DISPID_PROPERTYPUT;
const
  LOCALE_SYSTEM_DEFAULT = 2 shl 10; // Delphi 2 doesn't define this

function IDispatchInvoke(Self: IDispatch; PropertySet: Boolean; const Name: tbtString; const Par: array of Variant): Variant;
var
  Param: Word;
  i, ArgErr: Longint;
  DispatchId: Longint;
  DispParam: TDispParams;
  ExceptInfo: TExcepInfo;
  aName: PWideChar;
  WSFreeList: TPSList;
begin
  FillChar(ExceptInfo, SizeOf(ExceptInfo), 0);
  if Name='' then begin
   DispatchId:=0;
  end else begin
   aName := StringToOleStr(Name);
   try
     if Self = nil then
      raise Exception.Create(RPS_NILInterfaceException);
     if Self.GetIDsOfNames(GUID_NULL, @aName, 1, LOCALE_SYSTEM_DEFAULT, @DispatchId) <> S_OK then
      raise Exception.Create(RPS_UnknownMethod);
   finally
     SysFreeString(aName);
   end;
  end;
  DispParam.cNamedArgs := 0;
  DispParam.rgdispidNamedArgs := nil;
  DispParam.cArgs := (High(Par) + 1);

  if PropertySet then
  begin
    Param := DISPATCH_PROPERTYPUT;
    DispParam.cNamedArgs := 1;
    DispParam.rgdispidNamedArgs := @DispPropertyPut;
  end else
    Param := DISPATCH_METHOD or DISPATCH_PROPERTYGET;

  WSFreeList := TPSList.Create;
  try
    GetMem(DispParam.rgvarg, sizeof(TVariantArg) * (High(Par) + 1));
    FillCHar(DispParam.rgvarg^, sizeof(TVariantArg) * (High(Par) + 1), 0);
    try
      for i := 0 to High(Par)  do
      begin
        if PVarData(@Par[High(Par)-i]).VType = varString then
        begin
          DispParam.rgvarg[i].vt := VT_BSTR;
          DispParam.rgvarg[i].bstrVal := StringToOleStr(AnsiString(Par[High(Par)-i]));
          WSFreeList.Add(DispParam.rgvarg[i].bstrVal);
        {$IFDEF UNICODE}
        end else if (PVarData(@Par[High(Par)-i]).VType = varOleStr) or (PVarData(@Par[High(Par)-i]).VType = varUString) then
        begin
          DispParam.rgvarg[i].vt := VT_BSTR;
          DispParam.rgvarg[i].bstrVal := StringToOleStr(UnicodeString(Par[High(Par)-i]));
          WSFreeList.Add(DispParam.rgvarg[i].bstrVal);
        {$ENDIF}
        end else
        begin
          DispParam.rgvarg[i].vt := VT_VARIANT or VT_BYREF;
          New(
          {$IFDEF DELPHI4UP}
          POleVariant
          {$ELSE}
          PVariant{$ENDIF}
           (DispParam.rgvarg[i].pvarVal));

          (*
          {$IFDEF DELPHI4UP}
            POleVariant
          {$ELSE}
            PVariant
          {$ENDIF}
           (DispParam.rgvarg[i].pvarVal)^ := Par[High(Par)-i];
          *)
          Move(Par[High(Par)-i],Pointer(DispParam.rgvarg[i].pvarVal)^,
           Sizeof({$IFDEF DELPHI4UP}OleVariant{$ELSE}Variant{$ENDIF}));

        end;
      end;
      i :=Self.Invoke(DispatchId, GUID_NULL, LOCALE_SYSTEM_DEFAULT, Param, DispParam, @Result, @ExceptInfo, @ArgErr);
      {$IFNDEF Delphi3UP}
      try
       if not Succeeded(i) then
       begin
         if i = DISP_E_EXCEPTION then
           raise Exception.Create(OleStrToString(ExceptInfo.bstrSource)+': '+OleStrToString(ExceptInfo.bstrDescription))
         else
           raise Exception.Create(SysErrorMessage(i));
       end;
      finally
        SysFreeString(ExceptInfo.bstrSource);
        SysFreeString(ExceptInfo.bstrDescription);
        SysFreeString(ExceptInfo.bstrHelpFile);
      end;
      {$ELSE}
       if not Succeeded(i) then
       begin
         if i = DISP_E_EXCEPTION then
           raise Exception.Create(ExceptInfo.bstrSource+': '+ExceptInfo.bstrDescription)
         else
           raise Exception.Create(SysErrorMessage(i));
       end;
      {$ENDIF}
    finally
      for i := 0 to High(Par)  do
      begin
        if DispParam.rgvarg[i].vt = (VT_VARIANT or VT_BYREF) then
        begin
          if{$IFDEF DELPHI4UP}POleVariant{$ELSE}PVariant{$ENDIF}
            (DispParam.rgvarg[i].pvarVal) <> nil then
            Dispose(
            {$IFDEF DELPHI4UP}
             POleVariant
            {$ELSE}
             PVariant
            {$ENDIF}
             (DispParam.rgvarg[i].pvarVal));
        end;
      end;
      FreeMem(DispParam.rgvarg, sizeof(TVariantArg) * (High(Par) + 1));
    end;
  finally
    for i := WSFreeList.Count -1 downto 0 do
      SysFreeString(WSFreeList[i]);
    WSFreeList.Free;
  end;
end;
{$ENDIF}


{ TPSTypeRec_ProcPtr }

procedure TPSTypeRec_ProcPtr.CalcSize;
begin
  FRealSize := 2 * sizeof(Pointer) + Sizeof(Cardinal);
end;

end.