mirror of
https://github.com/moparisthebest/Simba
synced 2024-08-13 16:53:59 -04:00
57 lines
912 B
PHP
57 lines
912 B
PHP
{$ASMMODE intel}
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{$define HAVE_DETRANSFORM}
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{
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procedure Tbzip2_decode_stream.detransform;
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var a:cardinal;
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p,q,r:Pcardinal;
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begin
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a:=0;
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p:=@tt^[0];
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q:=p+tt_count;
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while p<>q do
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begin
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r:=@tt^[cftab[p^ and $ff]];
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inc(cftab[p^ and $ff]);
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r^:=r^ or a;
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inc(a,256);
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inc(p);
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end;
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end;
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}
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{const c:cardinal=0;
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procedure mcount;external name 'mcount';}
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procedure Tbzip2_decode_stream.detransform;assembler;
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asm
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{ mov edx,offset c
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call mcount}
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xor edx,edx
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lea ebx,[esi+Tbzip2_decode_stream.cftab]
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mov ecx,[esi+Tbzip2_decode_stream.tt_count]
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push esi
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push ebp
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mov esi,[esi+Tbzip2_decode_stream.tt]
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mov edi,esi
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lea ebp,[4*ecx+esi]
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jmp @a2
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@a1:
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movzx eax,byte [esi]
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mov ecx,[ebx+4*eax]
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inc dword [ebx+4*eax]
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or [edi+4*ecx],edx
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add edx,$100
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add esi,4
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@a2:
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cmp esi,ebp
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jne @a1
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pop ebp
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pop esi
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end ['eax','ebx','ecx','edx','edi'];
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