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Simba/Units/RUTIS/Rutis_Stack.pas
2010-08-20 17:21:43 +02:00

1132 lines
29 KiB
ObjectPascal

{/==============================================================================
//==============================================================================
RUTIS-Engine (RunTimeScript-Engine)
Rutis_Defs.pas (part of) RUTIS-Engine
--> This unit contains the types, defines, functions, etc.
which are used by the RUTIS-Engine
//==============================================================================
Author : Björn Zeutzheim
E-Mail : bjoern@zeutzheim-boppard.de
//==============================================================================
License: Dieses Projekt (RUTIS-Engine) steht unter einer /
This project is licensed under the
Creative Commons 3.0 BY-NC-SA (German) License
Diese Lizens beinhaltet / This license includes:
-> Namensnennung / Attribution
-> Keine kommerzielle Nutzung / Noncommercial
-> Weitergabe unter gleichen Bedingungen / Share Alike
Ein ausformulierter Lizensvertrag ist über folgende Adresse erreichbar:
The Legal Code (the full license) can be read at the following adress:
> http: //creativecommons.org/licenses/by-nc-sa/3.0/de/
//==============================================================================
//==============================================================================}
Unit Rutis_Stack;
Interface
{$i Delphi_Versions.inc}
{$IFDEF FPC}
{$mode objfpc}{$H+}
{$ENDIF}
Uses
SysUtils;
//====================================================================
//====================================================================
Type
{$ifndef DELPHI_7_UP}
PInteger = ^Integer;
TVarType = Word;
{$endif}
PPAnsiString = ^PAnsiString;
RutisString = Pointer;
PRutisString = ^RutisString;
{$IFDEF FPC}
PBoolean = ^Boolean;
{$ENDIF}
//====================================================================
Type
TRutisStackBlock = Record
Top : Integer;
Data : PByte;
End;
TRutisStackFreeInfo = Record
Adr : Integer;
IsStr : Boolean;
End;
TRutisBasicStack = Class
Private
fStackBlockSize : Integer;
Function GetData(Index : Integer) : Pointer;
Public
Blocks : Array Of TRutisStackBlock;
TopBlock : Integer;
Top : Integer;
DecTop : Integer;
FreeInfo : Array Of TRutisStackFreeInfo;
Property Data[Index : Integer] : Pointer Read GetData;
Procedure Copy(Src, Dst, Size : Integer);
Function Push(Size : Integer; SetZero : Boolean = False) : Integer;
Procedure Pop(Size : Integer);
Procedure PopTo(Size : Integer);
{$REGION 'Get-Var-Pointer functions'}
Function GetByte(Const adr : Integer) : PByte; Inline;
Function GetWord(Const adr : Integer) : PWord; Inline;
Function GetCardinal(Const adr : Integer) : PCardinal; Inline;
Function GetShortInt(Const adr : Integer) : PShortInt; Inline;
Function GetSmallInt(Const adr : Integer) : PSmallInt; Inline;
Function GetInteger(Const adr : Integer) : PInteger; Inline;
Function GetInt64(Const adr : Integer) : PInt64; Inline;
Function GetSingle(Const adr : Integer) : PSingle; Inline;
Function GetDouble(Const adr : Integer) : PDouble; Inline;
Function GetExtended(Const adr : Integer) : PExtended; Inline;
Function GetAChar(Const adr : Integer) : PAnsiChar; Inline;
Function GetWChar(Const adr : Integer) : PWideChar; Inline;
Function GetString(Const adr : Integer) : PRutisString; Inline;
Function GetShortString(Const adr : Integer) : PShortString; Inline;
{$ENDREGION}
{$REGION 'Read functions'}
Function ReadByte(Const adr : Integer) : Byte; Inline;
Function ReadWord(Const adr : Integer) : Word; Inline;
Function ReadCardinal(Const adr : Integer) : Cardinal; Inline;
Function ReadShortInt(Const adr : Integer) : Shortint; Inline;
Function ReadSmallInt(Const adr : Integer) : Smallint; Inline;
Function ReadInteger(Const adr : Integer) : Integer; Inline;
Function ReadInt64(Const adr : Integer) : Int64; Inline;
Function ReadSingle(Const adr : Integer) : Single; Inline;
Function ReadDouble(Const adr : Integer) : Double; Inline;
Function ReadExtended(Const adr : Integer) : Extended; Inline;
Function ReadAChar(Const adr : Integer) : AnsiChar; Inline;
Function ReadWChar(Const adr : Integer) : Widechar; Inline;
Function ReadString(Const adr : Integer) : RutisString; Inline;
Function ReadShortString(Const adr : Integer) : ShortString; Inline;
{$ENDREGION}
{$REGION 'Write functions'}
Procedure WriteByte(Const adr : Integer; Const Val : Byte); Inline;
Procedure WriteWord(Const adr : Integer; Const Val : Word); Inline;
Procedure WriteCardinal(Const adr : Integer; Const Val : Cardinal); Inline;
Procedure WriteShortInt(Const adr : Integer; Const Val : Shortint); Inline;
Procedure WriteSmallInt(Const adr : Integer; Const Val : Smallint); Inline;
Procedure WriteInteger(Const adr : Integer; Const Val : Integer); Inline;
Procedure WriteInt64(Const adr : Integer; Const Val : Int64); Inline;
Procedure WriteSingle(Const adr : Integer; Const Val : Single); Inline;
Procedure WriteDouble(Const adr : Integer; Const Val : Double); Inline;
Procedure WriteExtended(Const adr : Integer; Const Val : Extended); Inline;
Procedure WriteAChar(Const adr : Integer; Const Val : AnsiChar); Inline;
Procedure WriteWChar(Const adr : Integer; Const Val : Widechar); Inline;
Procedure WriteString(Const adr : Integer; Const Val : RutisString); Inline;
Procedure WriteShortString(Const adr : Integer; Const Val : ShortString); Inline;
{$ENDREGION}
{$REGION 'Push functions'}
Procedure PushByte(Const Val : Byte);
Procedure PushWord(Const Val : Word);
Procedure PushCardinal(Const Val : Cardinal);
Procedure PushShortInt(Const Val : Shortint);
Procedure PushSmallInt(Const Val : Smallint);
Procedure PushInteger(Const Val : Integer);
Procedure PushInt64(Const Val : Int64);
Procedure PushSingle(Const Val : Single);
Procedure PushDouble(Const Val : Double);
Procedure PushExtended(Const Val : Extended);
Procedure PushAChar(Const Val : AnsiChar);
Procedure PushWChar(Const Val : Widechar);
Procedure PushString(Const Val : RutisString; Const AutoFree : Boolean);
Procedure PushAStringData(Const Val : Ansistring);
Procedure PushShortString(Const Val : ShortString);
{$ENDREGION}
{$REGION 'Pop functions'}
Function PopByte : Byte;
Function PopWord : Word;
Function PopCardinal : Cardinal;
Function PopShortInt : Shortint;
Function PopSmallInt : Smallint;
Function PopInteger : Integer;
Function PopInt64 : Int64;
Function PopSingle : Single;
Function PopDouble : Double;
Function PopExtended : Extended;
Function PopAChar : AnsiChar;
Function PopWChar : Widechar;
Function PopString : RutisString;
Function PopShortString : ShortString;
{$ENDREGION}
Procedure AddFreeData(Adr : Integer; IsStr : Boolean);
Procedure Update_FreeData;
Function PointerInBlockData(p : Pointer) : Boolean;
Procedure Clear;
Constructor Create(AStackBlockSize : Cardinal);
Destructor Destroy; Override;
Property StackBlockSize : Integer Read fStackBlockSize;
End;
//====================================================================
Procedure CopyStackData(Src, Dst : PByte; Size : Integer);
//====================================================================
{$REGION 'Pointer-variable access functions'}
//Pointer-variable access functions for compability with Windows-CE
//====================================================================
Function GetPByte(Const Adr : PByte) : Byte; Inline;
Function GetPWord(Const Adr : PWord) : Word; Inline;
Function GetPCardinal(Const Adr : PCardinal) : Cardinal; Inline;
Function GetPShortInt(Const Adr : PShortInt) : ShortInt; Inline;
Function GetPSmallInt(Const Adr : PSmallInt) : Smallint; Inline;
Function GetPInteger(Const Adr : PInteger) : Integer; Inline;
Function GetPInt64(Const Adr : PInt64) : Int64; Inline;
Function GetPSingle(Const Adr : PSingle) : Single; Inline;
Function GetPDouble(Const Adr : PDouble) : Double; Inline;
Function GetPExtended(Const Adr : PExtended) : Extended; Inline;
Function GetPAnsiChar(Const Adr : PAnsiChar) : AnsiChar; Inline;
Function GetPWideChar(Const Adr : PWideChar) : Widechar; Inline;
Function GetPAnsiString(Const Adr : PAnsiString) : AnsiString; Inline;
Function GetPWideString(Const Adr : PWideString) : WideString; Inline;
Function GetPShortString(Const Adr : PShortString) : ShortString; Inline;
Function GetPPointer(Const Adr : PPointer) : Pointer; Inline;
//====================================================================
Procedure SetPByte(Const Adr : PByte; Const Val : Byte); Inline;
Procedure SetPWord(Const Adr : PWord; Const Val : Word); Inline;
Procedure SetPCardinal(Const Adr : PCardinal; Const Val : Cardinal); Inline;
Procedure SetPShortInt(Const Adr : PShortInt; Const Val : ShortInt); Inline;
Procedure SetPSmallInt(Const Adr : PSmallInt; Const Val : Smallint); Inline;
Procedure SetPInteger(Const Adr : PInteger; Const Val : Integer); Inline;
Procedure SetPInt64(Const Adr : PInt64; Const Val : Int64); Inline;
Procedure SetPSingle(Const Adr : PSingle; Const Val : Single); Inline;
Procedure SetPDouble(Const Adr : PDouble; Const Val : Double); Inline;
Procedure SetPExtended(Const Adr : PExtended; Const Val : Extended); Inline;
Procedure SetPAnsiChar(Const Adr : PAnsiChar; Const Val : AnsiChar); Inline;
Procedure SetPWideChar(Const Adr : PWideChar; Const Val : Widechar); Inline;
Procedure SetPAnsiString(Const Adr : PPointer; Const Val : AnsiString); Inline;
Procedure SetPWideString(Const Adr : PPointer; Const Val : WideString); Inline;
Procedure SetPShortString(Const Adr : PShortString; Const Val : ShortString); Inline;
Procedure SetPPointer(Const Adr : PPointer; Const Val : Pointer); Inline;
//====================================================================
{$ENDREGION}
Implementation
//==============================================================================
{$REGION 'Pointer-variable access functions'}
//Pointer-variable access functions for compability with Windows-CE
//Each one is defined as inline so it does not waste any performance when not
//compiling for Windows-CE
//==============================================================================
Function GetPByte(Const Adr : PByte) : Byte;
Begin
Result := Adr^;
End;
Function GetPWord(Const Adr : PWord) : Word;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPCardinal(Const Adr : PCardinal) : Cardinal;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPShortInt(Const Adr : PShortInt) : ShortInt;
Begin
Result := Adr^;
End;
Function GetPSmallInt(Const Adr : PSmallInt) : Smallint;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPInteger(Const Adr : PInteger) : Integer;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPInt64(Const Adr : PInt64) : Int64;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPSingle(Const Adr : PSingle) : Single;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPDouble(Const Adr : PDouble) : Double;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPExtended(Const Adr : PExtended) : Extended;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPAnsiChar(Const Adr : PAnsiChar) : AnsiChar;
Begin
Result := Adr^;
End;
Function GetPWideChar(Const Adr : PWideChar) : Widechar;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPAnsiString(Const Adr : PAnsiString) : AnsiString;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPWideString(Const Adr : PWideString) : WideString;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPShortString(Const Adr : PShortString) : ShortString;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
Function GetPPointer(Const Adr : PPointer) : Pointer;
Begin
{$ifdef WinCE}
Result := unaligned(Adr^);
{$else WinCE}
Result := Adr^;
{$endif}
End;
//==============================================================================
Procedure SetPByte(Const Adr : PByte; Const Val : Byte);
Begin
Adr^ := Val;
End;
Procedure SetPWord(Const Adr : PWord; Const Val : Word);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPCardinal(Const Adr : PCardinal; Const Val : Cardinal);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPShortInt(Const Adr : PShortInt; Const Val : ShortInt);
Begin
Adr^ := Val;
End;
Procedure SetPSmallInt(Const Adr : PSmallInt; Const Val : Smallint);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPInteger(Const Adr : PInteger; Const Val : Integer);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPInt64(Const Adr : PInt64; Const Val : Int64);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPSingle(Const Adr : PSingle; Const Val : Single);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPDouble(Const Adr : PDouble; Const Val : Double);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPExtended(Const Adr : PExtended; Const Val : Extended);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPAnsiChar(Const Adr : PAnsiChar; Const Val : AnsiChar);
Begin
Adr^ := Val;
End;
Procedure SetPWideChar(Const Adr : PWideChar; Const Val : Widechar);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPAnsiString(Const Adr : PPointer; Const Val : AnsiString);
var StrCopy : Pointer;
Begin
StrCopy := nil;
AnsiString(StrCopy) := Val;
{$ifdef WinCE}
unaligned(Adr^) := StrCopy;
{$else WinCE}
Adr^ := StrCopy;
{$endif}
End;
Procedure SetPWideString(Const Adr : PPointer; Const Val : WideString);
var StrCopy : Pointer;
Begin
StrCopy := nil;
WideString(StrCopy) := Val;
{$ifdef WinCE}
unaligned(Adr^) := StrCopy;
{$else WinCE}
Adr^ := StrCopy;
{$endif}
End;
Procedure SetPShortString(Const Adr : PShortString; Const Val : ShortString);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
Procedure SetPPointer(Const Adr : PPointer; Const Val : Pointer);
Begin
{$ifdef WinCE}
unaligned(Adr^) := Val;
{$else WinCE}
Adr^ := Val;
{$endif}
End;
{$ENDREGION}
//====================================================================
Procedure CopyStackData(Src, Dst : PByte; Size : Integer);
Begin
move(Src^, Dst^, Size);
End;
{Procedure CopyStackData(Src, Dst : PByte; Size : Integer);
Begin
Case Size Of
1 : dst^ := src^;
2 : PWord(dst)^ := PWord(src)^;
4 : PCardinal(dst)^ := PCardinal(src)^;
8 : PInt64(dst)^ := PInt64(src)^;
Else
While Size > 0 Do
Begin
If Size >= 8 Then
Begin
PInt64(dst)^ := PInt64(src)^;
Inc(dst, 8);
Inc(src, 8);
Size := Size - 8;
Continue;
End;
If Size >= 4 Then
Begin
PCardinal(dst)^ := PCardinal(src)^;
Inc(dst, 4);
Inc(src, 4);
Size := Size - 4;
Continue;
End;
If Size >= 2 Then
Begin
PWord(dst)^ := PWord(src)^;
Inc(dst, 2);
Inc(src, 2);
Size := Size - 2;
Continue;
End;
dst^ := src^;
Size := Size - 1;
End;
End;
End; //}
//==============================================================================
{ TRutisStack }
Constructor TRutisBasicStack.Create(AStackBlockSize : Cardinal);
Begin
fStackBlockSize := AStackBlockSize;
SetLength(Blocks, 1);
TopBlock := 0;
Blocks[0].Data := AllocMem(fStackBlockSize);
End;
Destructor TRutisBasicStack.Destroy;
Begin
Clear;
FreeMem(Blocks[0].Data);
Inherited;
End;
Procedure TRutisBasicStack.Clear;
Var i : Integer;
Begin
Try
Top := 0;
Update_FreeData;
For i := 1 To high(Blocks) Do
FreeMem(Blocks[i].Data);
Finally
DecTop := 0;
SetLength(Blocks, 1);
TopBlock := 0;
//FillChar(Blocks[0].Data^, fStackBlockSize, 0);
End;
End;
//==============================================================================
Function TRutisBasicStack.GetData(Index : Integer) : Pointer;
Var i : Integer;
Begin
i := TopBlock;
Index := Index - DecTop;
While (Index < 0) and (i > 0) Do
Begin
Index := Index + Blocks[i - 1].Top;
Dec(i);
End;
Result := Blocks[i].Data;
inc(Cardinal(Result), Index);
End;
//==============================================================================
Procedure TRutisBasicStack.Copy(Src, Dst, Size : Integer);
Begin
CopyStackData(Data[Src], Data[Dst], Size);
End;
Function TRutisBasicStack.Push(Size : Integer; SetZero : Boolean) : Integer;
Var
Ptr : PByte;
Begin
Update_FreeData;
Result := Top;
If Top - DecTop + Size > fStackBlockSize - 1 Then
Begin
Blocks[TopBlock].Top := Top - DecTop;
DecTop := DecTop + Blocks[TopBlock].Top;
Inc(TopBlock);
If TopBlock > high(Blocks) Then
Begin
SetLength(Blocks, length(Blocks) + 1);
Blocks[TopBlock].Data := AllocMem(fStackBlockSize);
//FillChar(Blocks[TopBlock].Data^, fStackBlockSize, 0);
End;
End;
Top := Top + Size;
If SetZero Then
Begin
Ptr := Data[Result];
FillChar(Ptr^, Size, 0);
End;
End;
Procedure TRutisBasicStack.Pop(Size : Integer);
Var int : Integer;
Begin
Update_FreeData;
Top := Top - Size;
If Top < 0 Then Top := 0;
While Top - DecTop < -fStackBlockSize Do
Begin
If DecTop = 0 Then
Begin
Top := 0;
exit;
End;
int := TopBlock;
DecTop := DecTop - Blocks[int - 1].Top;
Dec(TopBlock);
//SetLength(Blocks, int);
End;
End;
Procedure TRutisBasicStack.PopTo(Size : Integer);
Begin
If Size < Top Then
Pop(Top - Size);
End;
//==============================================================================
{$REGION 'Get-Var-Pointer functions'}
Function TRutisBasicStack.GetByte(Const adr : Integer) : PByte;
Begin
Result := PByte(Data[Adr]);
End;
Function TRutisBasicStack.GetWord(Const adr : Integer) : PWord;
Begin
Result := PWord(Data[Adr]);
End;
Function TRutisBasicStack.GetCardinal(Const adr : Integer) : PCardinal;
Begin
Result := PCardinal(Data[Adr]);
End;
Function TRutisBasicStack.GetShortInt(Const adr : Integer) : PShortInt;
Begin
Result := PShortInt(Data[Adr]);
End;
Function TRutisBasicStack.GetSmallInt(Const adr : Integer) : PSmallInt;
Begin
Result := PSmallInt(Data[Adr]);
End;
Function TRutisBasicStack.GetInteger(Const adr : Integer) : PInteger;
Begin
Result := PInteger(Data[Adr]);
End;
Function TRutisBasicStack.GetInt64(Const adr : Integer) : PInt64;
Begin
Result := PInt64(Data[Adr]);
End;
Function TRutisBasicStack.GetSingle(Const adr : Integer) : PSingle;
Begin
Result := PSingle(Data[Adr]);
End;
Function TRutisBasicStack.GetDouble(Const adr : Integer) : PDouble;
Begin
Result := PDouble(Data[Adr]);
End;
Function TRutisBasicStack.GetExtended(Const adr : Integer) : PExtended;
Begin
Result := PExtended(Data[Adr]);
End;
Function TRutisBasicStack.GetAChar(Const adr : Integer) : PAnsiChar;
Begin
Result := PAnsiChar(Data[Adr]);
End;
Function TRutisBasicStack.GetWChar(Const adr : Integer) : PWideChar;
Begin
Result := PWideChar(Data[Adr]);
End;
Function TRutisBasicStack.GetString(Const adr : Integer) : PRutisString;
Begin
Result := PRutisString(Data[Adr]);
End;
Function TRutisBasicStack.GetShortString(Const adr : Integer) : PShortString;
Begin
Result := PShortString(Data[Adr]);
End;
{$ENDREGION}
//==============================================================================
{$REGION 'Read functions'}
Function TRutisBasicStack.ReadByte(Const adr : Integer) : Byte;
Begin
Result := PByte(Data[Adr])^;
End;
Function TRutisBasicStack.ReadWord(Const adr : Integer) : Word;
Begin
Result := GetPWord(Data[Adr]);
End;
Function TRutisBasicStack.ReadCardinal(Const adr : Integer) : Cardinal;
Begin
Result := GetPCardinal(Data[Adr]);
End;
Function TRutisBasicStack.ReadShortInt(Const adr : Integer) : Shortint;
Begin
Result := PShortInt(Data[Adr])^;
End;
Function TRutisBasicStack.ReadSmallInt(Const adr : Integer) : Smallint;
Begin
Result := GetPSmallInt(Data[Adr]);
End;
Function TRutisBasicStack.ReadInteger(Const adr : Integer) : Integer;
Begin
Result := GetPInteger(Data[Adr]);
End;
Function TRutisBasicStack.ReadInt64(Const adr : Integer) : Int64;
Begin
Result := GetPInt64(Data[Adr]);
End;
Function TRutisBasicStack.ReadSingle(Const adr : Integer) : Single;
Begin
Result := GetPSingle(Data[Adr]);
End;
Function TRutisBasicStack.ReadDouble(Const adr : Integer) : Double;
Begin
Result := GetPDouble(Data[Adr]);
End;
Function TRutisBasicStack.ReadExtended(Const adr : Integer) : Extended;
Begin
Result := GetPExtended(Data[Adr]);
End;
Function TRutisBasicStack.ReadAChar(Const adr : Integer) : AnsiChar;
Begin
Result := PAnsiChar(Data[Adr])^;
End;
Function TRutisBasicStack.ReadWChar(Const adr : Integer) : Widechar;
Begin
Result := GetPWideChar(Data[Adr]);
End;
Function TRutisBasicStack.ReadString(Const adr : Integer) : RutisString;
Begin
Result := GetPPointer(Data[Adr]);
End;
Function TRutisBasicStack.ReadShortString(Const adr : Integer) : ShortString;
Begin
Result := GetPShortString(Data[Adr]);
End;
{$ENDREGION}
//==============================================================================
{$REGION 'Write functions'}
Procedure TRutisBasicStack.WriteByte(Const adr : Integer; Const Val : Byte);
Begin
PByte(Data[adr])^ := Val;
End;
Procedure TRutisBasicStack.WriteWord(Const adr : Integer; Const Val : Word);
Begin
SetPWord(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteCardinal(Const adr : Integer; Const Val : Cardinal);
Begin
SetPCardinal(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteShortInt(Const adr : Integer; Const Val : Shortint);
Begin
PShortInt(Data[adr])^ := Val;
End;
Procedure TRutisBasicStack.WriteSmallInt(Const adr : Integer; Const Val : Smallint);
Begin
SetPSmallInt(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteInteger(Const adr : Integer; Const Val : Integer);
Begin
SetPInteger(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteInt64(Const adr : Integer; Const Val : Int64);
Begin
SetPInt64(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteSingle(Const adr : Integer; Const Val : Single);
Begin
SetPSingle(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteDouble(Const adr : Integer; Const Val : Double);
Begin
SetPDouble(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteExtended(Const adr : Integer; Const Val : Extended);
Begin
SetPExtended(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteAChar(Const adr : Integer; Const Val : AnsiChar);
Begin
PAnsiChar(Data[adr])^ := Val;
End;
Procedure TRutisBasicStack.WriteWChar(Const adr : Integer; Const Val : Widechar);
Begin
SetPWideChar(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteString(Const adr : Integer; Const Val : RutisString);
Begin
SetPPointer(Data[adr], Val);
End;
Procedure TRutisBasicStack.WriteShortString(Const adr : Integer; Const Val : ShortString);
Begin
SetPShortString(Data[adr], Val);
End;
{$ENDREGION}
//==============================================================================
{$REGION 'Pop functions'}
Function TRutisBasicStack.PopByte : Byte;
Begin
Result := PByte(Data[Top - 1])^;
Pop(1);
End;
Function TRutisBasicStack.PopWord : Word;
Begin
Result := GetPWord(Data[Top - 2]);
Pop(2);
End;
Function TRutisBasicStack.PopCardinal : Cardinal;
Begin
Result := GetPCardinal(Data[Top - 4]);
Pop(4);
End;
Function TRutisBasicStack.PopShortInt : Shortint;
Begin
Result := PShortInt(Data[Top - 1])^;
Pop(1);
End;
Function TRutisBasicStack.PopSmallInt : Smallint;
Begin
Result := GetPSmallInt(Data[Top - 2]);
Pop(2);
End;
Function TRutisBasicStack.PopInteger : Integer;
Begin
Result := GetPInteger(Data[Top - 4]);
Pop(4);
End;
Function TRutisBasicStack.PopInt64 : Int64;
Begin
Result := GetPInt64(Data[Top - 8]);
Pop(8);
End;
Function TRutisBasicStack.PopSingle : Single;
Begin
Result := GetPSingle(Data[Top - 4]);
Pop(4);
End;
Function TRutisBasicStack.PopDouble : Double;
Begin
Result := GetPDouble(Data[Top - 8]);
Pop(8);
End;
Function TRutisBasicStack.PopExtended : Extended;
Begin
Result := GetPExtended(Data[Top - 10]);
Pop(10);
End;
Function TRutisBasicStack.PopAChar : AnsiChar;
Begin
Result := PAnsiChar(Data[Top - 1])^;
Pop(1);
End;
Function TRutisBasicStack.PopWChar : Widechar;
Begin
Result := GetPWideChar(Data[Top - 2]);
Pop(2);
End;
Function TRutisBasicStack.PopString : RutisString;
Begin
Result := GetPPointer(Data[Top - 4]);
Pop(4);
End;
Function TRutisBasicStack.PopShortString : ShortString;
Begin
Result := GetPShortString(Data[Top - 256]);
Pop(256);
End;
{$ENDREGION}
//==============================================================================
{$REGION 'Push functions'}
Procedure TRutisBasicStack.PushByte(Const Val : Byte);
Begin
PByte(Data[Push(1, False)])^ := Val;
End;
Procedure TRutisBasicStack.PushWord(Const Val : Word);
Begin
SetPWord(Data[Push(2, False)], Val);
End;
Procedure TRutisBasicStack.PushCardinal(Const Val : Cardinal);
Begin
SetPCardinal(Data[Push(4, False)], Val);
End;
Procedure TRutisBasicStack.PushShortInt(Const Val : Shortint);
Begin
PShortInt(Data[Push(1, False)])^ := Val;
End;
Procedure TRutisBasicStack.PushSmallInt(Const Val : Smallint);
Begin
SetPSmallInt(Data[Push(2, False)], Val);
End;
Procedure TRutisBasicStack.PushInteger(Const Val : Integer);
Begin
SetPInteger(Data[Push(4, False)], Val);
End;
Procedure TRutisBasicStack.PushInt64(Const Val : Int64);
Begin
SetPInt64(Data[Push(8, False)], Val);
End;
Procedure TRutisBasicStack.PushSingle(Const Val : Single);
Begin
SetPSingle(Data[Push(4, False)], Val);
End;
Procedure TRutisBasicStack.PushDouble(Const Val : Double);
Begin
SetPDouble(Data[Push(8, False)], Val);
End;
Procedure TRutisBasicStack.PushExtended(Const Val : Extended);
Begin
SetPExtended(Data[Push(10, False)], Val);
End;
Procedure TRutisBasicStack.PushAChar(Const Val : AnsiChar);
Begin
PAnsiChar(Data[Push(1, False)])^ := Val;
End;
Procedure TRutisBasicStack.PushWChar(Const Val : Widechar);
Begin
SetPWideChar(Data[Push(2, False)], Val);
End;
Procedure TRutisBasicStack.PushString(Const Val : RutisString; Const AutoFree : Boolean);
Begin
SetPPointer(Data[Push(4, False)], Val);
If AutoFree Then
AddFreeData(Top - 4, True);
End;
Procedure TRutisBasicStack.PushShortString(Const Val : ShortString);
Begin
SetPShortString(Data[Push(SizeOf(ShortString), False)], Val);
End;
Procedure TRutisBasicStack.PushAStringData(Const Val : Ansistring);
Begin
If Val = '' Then
PushCardinal(0)
Else
CopyStackData(PByte(Cardinal(Val) - 4), Data[Push(length(Val) + 4, False)], length(Val) + 4);
PushByte(0);
{$ifdef WinCE}
while Top mod 4 <> 0 do
PushByte(0);
{$endif WinCE}
End;
{$ENDREGION}
//==============================================================================
Function TRutisBasicStack.PointerInBlockData(p : Pointer) : Boolean;
Var i : Integer;
Begin
Result := True;
For i := 0 To TopBlock Do
Begin
If (Cardinal(p) >= Cardinal(Blocks[i].Data)) and
(Cardinal(p) < Cardinal(Blocks[i].Data) + fStackBlockSize) Then exit;
End;
Result := False;
End;
//==============================================================================
Procedure TRutisBasicStack.AddFreeData(adr : Integer; IsStr : Boolean);
Begin
SetLength(FreeInfo, length(FreeInfo) + 1);
FreeInfo[high(FreeInfo)].Adr := Adr;
FreeInfo[high(FreeInfo)].IsStr := IsStr;
End;
Procedure TRutisBasicStack.Update_FreeData;
Var
i : Integer;
dst : PPointer;
Begin
dst := nil;
For i := high(FreeInfo) Downto 0 Do
If Top <= FreeInfo[i].Adr Then
Begin
Try
dst := PPointer(GetCardinal(FreeInfo[i].Adr));
If dst^ <> nil Then
Begin
If FreeInfo[i].IsStr Then
Ansistring(dst^) := ''
Else
FreeMem(dst^);
End;
Finally
If dst <> nil Then
dst^ := nil;
FreeInfo[i] := FreeInfo[high(FreeInfo)];
SetLength(FreeInfo, length(FreeInfo) - 1);
End;
End;
End;
{$ENDREGION}
End.