19a4ca3bdf
Jesus Reyes A. for freepascal support. git-svn-id: http://code.remobjects.com/svn/pascalscript@19 5c9d2617-0215-0410-a2ee-e80e04d1c6d8
500 lines
16 KiB
ObjectPascal
500 lines
16 KiB
ObjectPascal
|
|
|
|
unit uPSDisassembly;
|
|
{$I PascalScript.inc}
|
|
|
|
interface
|
|
uses
|
|
uPSRuntime, uPSUtils, sysutils;
|
|
|
|
function IFPS3DataToText(const Input: string; var Output: string): Boolean;
|
|
implementation
|
|
|
|
type
|
|
TMyPSExec = class(TPSExec)
|
|
function ImportProc(const Name: ShortString; proc: TIFExternalProcRec): Boolean; override;
|
|
end;
|
|
|
|
function Debug2Str(const s: string): string;
|
|
var
|
|
i: Integer;
|
|
begin
|
|
result := '';
|
|
for i := 1 to length(s) do
|
|
begin
|
|
if (s[i] < #32) or (s[i] > #128) then
|
|
result := result + '\'+inttohex(ord(s[i]), 2)
|
|
else if s[i] = '\' then
|
|
result := result + '\\'
|
|
else
|
|
result := result + s[i];
|
|
end;
|
|
|
|
end;
|
|
|
|
function SpecImportProc(Sender: TObject; p: TIFExternalProcRec): Boolean; forward;
|
|
|
|
function FloatToStr(Value: Extended): string;
|
|
begin
|
|
try
|
|
Result := SysUtils.FloatToStr(Value);
|
|
except
|
|
Result := 'NaNa';
|
|
end;
|
|
end;
|
|
|
|
|
|
function IFPS3DataToText(const Input: string; var Output: string): Boolean;
|
|
var
|
|
I: TMyPSExec;
|
|
|
|
procedure Writeln(const s: string);
|
|
begin
|
|
Output := Output + s + #13#10;
|
|
end;
|
|
function BT2S(P: PIFTypeRec): string;
|
|
var
|
|
i: Longint;
|
|
begin
|
|
case p.BaseType of
|
|
btU8: Result := 'U8';
|
|
btS8: Result := 'S8';
|
|
btU16: Result := 'U16';
|
|
btS16: Result := 'S16';
|
|
btU32: Result := 'U32';
|
|
btS32: Result := 'S32';
|
|
{$IFNDEF PS_NOINT64}bts64: Result := 'S64'; {$ENDIF}
|
|
btChar: Result := 'Char';
|
|
{$IFNDEF PS_NOWIDESTRING}
|
|
btWideChar: Result := 'WideChar';
|
|
btWideString: Result := 'WideString';
|
|
{$ENDIF}
|
|
btSet: Result := 'Set';
|
|
btSingle: Result := 'Single';
|
|
btDouble: Result := 'Double';
|
|
btExtended: Result := 'Extended';
|
|
btString: Result := 'String';
|
|
btRecord:
|
|
begin
|
|
Result := 'Record(';
|
|
for i := 0 to TPSTypeRec_Record(p).FieldTypes.Count-1 do
|
|
begin
|
|
if i <> 0 then Result := Result+',';
|
|
Result := Result + BT2S(PIFTypeRec(TPSTypeRec_Record(p).FieldTypes[i]));
|
|
end;
|
|
Result := Result + ')';
|
|
end;
|
|
btArray: Result := 'Array of '+BT2S(TPSTypeRec_Array(p).ArrayType);
|
|
btResourcePointer: Result := 'ResourcePointer';
|
|
btPointer: Result := 'Pointer';
|
|
btVariant: Result := 'Variant';
|
|
btClass: Result := 'Class';
|
|
btProcPtr: Result := 'ProcPtr';
|
|
btStaticArray: Result := 'StaticArray['+inttostR(TPSTypeRec_StaticArray(p).Size)+'] of '+BT2S(TPSTypeRec_Array(p).ArrayType);
|
|
else
|
|
Result := 'Unknown '+inttostr(p.BaseType);
|
|
end;
|
|
end;
|
|
procedure WriteTypes;
|
|
var
|
|
T: Longint;
|
|
begin
|
|
Writeln('[TYPES]');
|
|
for T := 0 to i.FTypes.Count -1 do
|
|
begin
|
|
if PIFTypeRec(i.FTypes[t]).ExportName <> '' then
|
|
Writeln('Type ['+inttostr(t)+']: '+bt2s(PIFTypeRec(i.FTypes[t]))+' Export: '+PIFTypeRec(i.FTypes[t]).ExportName)
|
|
else
|
|
Writeln('Type ['+inttostr(t)+']: '+bt2s(PIFTypeRec(i.FTypes[t])));
|
|
end;
|
|
end;
|
|
procedure WriteVars;
|
|
var
|
|
T: Longint;
|
|
function FindType(p: Pointer): Cardinal;
|
|
var
|
|
T: Longint;
|
|
begin
|
|
Result := Cardinal(-1);
|
|
for T := 0 to i.FTypes.Count -1 do
|
|
begin
|
|
if p = i.FTypes[t] then begin
|
|
result := t;
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
begin
|
|
Writeln('[VARS]');
|
|
for t := 0 to i.FGlobalVars.count -1 do
|
|
begin
|
|
Writeln('Var ['+inttostr(t)+']: '+ IntToStr(FindType(PIFVariant(i.FGlobalVars[t])^.FType)) + ' '+ bt2s(PIFVariant(i.FGlobalVars[t])^.Ftype) + ' '+ PIFVariant(i.FGlobalVars[t])^.Ftype.ExportName);
|
|
end;
|
|
end;
|
|
|
|
procedure WriteProcs;
|
|
var
|
|
t: Longint;
|
|
procedure WriteProc(proc: TPSProcRec);
|
|
var
|
|
sc, CP: Cardinal;
|
|
function ReadData(var Data; Len: Cardinal): Boolean;
|
|
begin
|
|
if CP + Len <= TPSInternalProcRec(PROC).Length then begin
|
|
Move(TPSInternalProcRec(Proc).Data[CP], Data, Len);
|
|
CP := CP + Len;
|
|
Result := True;
|
|
end else Result := False;
|
|
end;
|
|
function ReadByte(var B: Byte): Boolean;
|
|
begin
|
|
if CP < TPSInternalProcRec(Proc).Length then begin
|
|
b := TPSInternalProcRec(Proc).Data^[cp];
|
|
Inc(CP);
|
|
Result := True;
|
|
end else Result := False;
|
|
end;
|
|
|
|
function ReadLong(var B: Cardinal): Boolean;
|
|
begin
|
|
if CP + 3 < TPSInternalProcRec(Proc).Length then begin
|
|
b := Cardinal((@TPSInternalProcRec(Proc).Data[CP])^);
|
|
Inc(CP, 4);
|
|
Result := True;
|
|
end else Result := False;
|
|
end;
|
|
function ReadWriteVariable: string;
|
|
var
|
|
VarType: byte;
|
|
L1, L2: Cardinal;
|
|
function ReadVar(FType: Cardinal): string;
|
|
var
|
|
F: PIFTypeRec;
|
|
b: byte;
|
|
w: word;
|
|
l: Cardinal;
|
|
{$IFNDEF PS_NOINT64}ff: Int64;{$ENDIF}
|
|
e: extended;
|
|
ss: single;
|
|
d: double;
|
|
s: string;
|
|
c: char;
|
|
{$IFNDEF PS_NOWIDESTRING}
|
|
wc: WideChar;
|
|
ws: WideString;
|
|
{$ENDIF}
|
|
|
|
begin
|
|
result := '';
|
|
F:= i.FTypes[Ftype];
|
|
if f = nil then exit;
|
|
case f.BaseType of
|
|
btProcPtr: begin if not ReadData(l, 4) then exit; Result := 'PROC: '+inttostr(l); end;
|
|
btU8: begin if not ReadData(b, 1) then exit; Result := IntToStr(tbtu8(B)); end;
|
|
btS8: begin if not ReadData(b, 1) then exit; Result := IntToStr(tbts8(B)); end;
|
|
btU16: begin if not ReadData(w, 2) then exit; Result := IntToStr(tbtu16(w)); end;
|
|
btS16: begin if not ReadData(w, 2) then exit; Result := IntToStr(tbts16(w)); end;
|
|
btU32: begin if not ReadData(l, 4) then exit; Result := IntToStr(tbtu32(l)); end;
|
|
btS32: begin if not ReadData(l, 4) then exit; Result := IntToStr(tbts32(l)); end;
|
|
{$IFNDEF PS_NOINT64}bts64: begin if not ReadData(ff, 8) then exit; Result := IntToStr(ff); end;{$ENDIF}
|
|
btSingle: begin if not ReadData(ss, Sizeof(tbtsingle)) then exit; Result := FloatToStr(ss); end;
|
|
btDouble: begin if not ReadData(d, Sizeof(tbtdouble)) then exit; Result := FloatToStr(d); end;
|
|
btExtended: begin if not ReadData(e, Sizeof(tbtextended)) then exit; Result := FloatToStr(e); end;
|
|
btPChar, btString: begin if not ReadData(l, 4) then exit; SetLength(s, l); if not readData(s[1], l) then exit; Result := MakeString(s); end;
|
|
btSet:
|
|
begin
|
|
SetLength(s, TPSTypeRec_Set(f).aByteSize);
|
|
if not ReadData(s[1], length(s)) then exit;
|
|
result := MakeString(s);
|
|
|
|
end;
|
|
btChar: begin if not ReadData(c, 1) then exit; Result := '#'+IntToStr(ord(c)); end;
|
|
{$IFNDEF PS_NOWIDESTRING}
|
|
btWideChar: begin if not ReadData(wc, 2) then exit; Result := '#'+IntToStr(ord(wc)); end;
|
|
btWideString: begin if not ReadData(l, 4) then exit; SetLength(ws, l); if not readData(ws[1], l*2) then exit; Result := MakeWString(ws); end;
|
|
{$ENDIF}
|
|
end;
|
|
end;
|
|
function AddressToStr(a: Cardinal): string;
|
|
begin
|
|
if a < PSAddrNegativeStackStart then
|
|
Result := 'GlobalVar['+inttostr(a)+']'
|
|
else
|
|
Result := 'Base['+inttostr(Longint(A-PSAddrStackStart))+']';
|
|
end;
|
|
|
|
begin
|
|
Result := '';
|
|
if not ReadByte(VarType) then Exit;
|
|
case VarType of
|
|
0:
|
|
begin
|
|
|
|
if not ReadLong(L1) then Exit;
|
|
Result := AddressToStr(L1);
|
|
end;
|
|
1:
|
|
begin
|
|
if not ReadLong(L1) then Exit;
|
|
Result := '['+ReadVar(l1)+']';
|
|
end;
|
|
2:
|
|
begin
|
|
if not ReadLong(L1) then Exit;
|
|
if not ReadLong(L2) then Exit;
|
|
Result := AddressToStr(L1)+'.['+inttostr(l2)+']';
|
|
end;
|
|
3:
|
|
begin
|
|
if not ReadLong(l1) then Exit;
|
|
if not ReadLong(l2) then Exit;
|
|
Result := AddressToStr(L1)+'.'+AddressToStr(l2);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
var
|
|
b: Byte;
|
|
s: string;
|
|
DP, D1, D2, d3, d4: Cardinal;
|
|
|
|
begin
|
|
CP := 0;
|
|
sc := 0;
|
|
while true do
|
|
begin
|
|
DP := cp;
|
|
if not ReadByte(b) then Exit;
|
|
case b of
|
|
CM_A:
|
|
begin
|
|
{$IFDEF FPC}
|
|
Output := Output + ' ['+inttostr(dp)+'] ASSIGN '+ ReadWriteVariable;
|
|
Output := Output + ', ' + ReadWriteVariable + #13#10;
|
|
{$ELSE}
|
|
Writeln(' ['+inttostr(dp)+'] ASSIGN '+ReadWriteVariable+ ', ' + ReadWriteVariable);
|
|
{$ENDIF}
|
|
end;
|
|
CM_CA:
|
|
begin
|
|
if not ReadByte(b) then exit;
|
|
case b of
|
|
0: s:= '+';
|
|
1: s := '-';
|
|
2: s := '*';
|
|
3: s:= '/';
|
|
4: s:= 'MOD';
|
|
5: s:= 'SHL';
|
|
6: s:= 'SHR';
|
|
7: s:= 'AND';
|
|
8: s:= 'OR';
|
|
9: s:= 'XOR';
|
|
else
|
|
exit;
|
|
end;
|
|
Writeln(' ['+inttostr(dp)+'] CALC '+ReadWriteVariable+ ' '+s+' ' + ReadWriteVariable);
|
|
end;
|
|
CM_P:
|
|
begin
|
|
Inc(sc);
|
|
Writeln(' ['+inttostr(dp)+'] PUSH '+ReadWriteVariable + ' // '+inttostr(sc));
|
|
end;
|
|
CM_PV:
|
|
begin
|
|
Inc(sc);
|
|
Writeln(' ['+inttostr(dp)+'] PUSHVAR '+ReadWriteVariable + ' // '+inttostr(sc));
|
|
end;
|
|
CM_PO:
|
|
begin
|
|
Dec(Sc);
|
|
Writeln(' ['+inttostr(dp)+'] POP // '+inttostr(sc));
|
|
end;
|
|
Cm_C:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] CALL '+inttostr(d1));
|
|
end;
|
|
Cm_PG:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] POP/GOTO currpos + '+IntToStr(d1)+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
Cm_P2G:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] POP2/GOTO currpos + '+IntToStr(d1)+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
Cm_G:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] GOTO currpos + '+IntToStr(d1)+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
Cm_CG:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] COND_GOTO currpos + '+IntToStr(d1)+' '+ReadWriteVariable+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
Cm_CNG:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] COND_NOT_GOTO currpos + '+IntToStr(d1)+' '+ReadWriteVariable+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
Cm_R: Writeln(' ['+inttostr(dp)+'] RET');
|
|
Cm_ST:
|
|
begin
|
|
if not ReadLong(d1) or not readLong(d2) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] SETSTACKTYPE Base['+inttostr(d1)+'] '+inttostr(d2));
|
|
end;
|
|
Cm_Pt:
|
|
begin
|
|
Inc(sc);
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] PUSHTYPE '+inttostr(d1) + '('+BT2S(TPSTypeRec(I.FTypes[d1]))+') // '+inttostr(sc));
|
|
end;
|
|
CM_CO:
|
|
begin
|
|
if not readByte(b) then exit;
|
|
case b of
|
|
0: s := '>=';
|
|
1: s := '<=';
|
|
2: s := '>';
|
|
3: s := '<';
|
|
4: s := '<>';
|
|
5: s := '=';
|
|
else exit;
|
|
end;
|
|
Writeln(' ['+inttostr(dp)+'] COMPARE into '+ReadWriteVariable+': '+ReadWriteVariable+' '+s+' '+ReadWriteVariable);
|
|
end;
|
|
Cm_cv:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] CALLVAR '+ReadWriteVariable);
|
|
end;
|
|
Cm_inc:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] INC '+ReadWriteVariable);
|
|
end;
|
|
Cm_dec:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] DEC '+ReadWriteVariable);
|
|
end;
|
|
cm_sp:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] SETPOINTER '+ReadWriteVariable+': '+ReadWriteVariable);
|
|
end;
|
|
cm_spc:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] SETCOPYPOINTER '+ReadWriteVariable+': '+ReadWriteVariable);
|
|
end;
|
|
cm_in:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] INOT '+ReadWriteVariable);
|
|
end;
|
|
cm_bn:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] BNOT '+ReadWriteVariable);
|
|
end;
|
|
cm_vm:
|
|
begin
|
|
Writeln(' ['+inttostr(dp)+'] MINUS '+ReadWriteVariable);
|
|
end;
|
|
cm_sf:
|
|
begin
|
|
s := ReadWriteVariable;
|
|
if not ReadByte(b) then exit;
|
|
if b = 0 then
|
|
Writeln(' ['+inttostr(dp)+'] SETFLAG '+s)
|
|
else
|
|
Writeln(' ['+inttostr(dp)+'] SETFLAG NOT '+s);
|
|
end;
|
|
cm_fg:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] FLAGGOTO currpos + '+IntToStr(d1)+' ['+IntToStr(CP+d1)+']');
|
|
end;
|
|
cm_puexh:
|
|
begin
|
|
if not ReadLong(D1) then exit;
|
|
if not ReadLong(D2) then exit;
|
|
if not ReadLong(D3) then exit;
|
|
if not ReadLong(D4) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] PUSHEXCEPTION '+inttostr(d1)+' '+inttostr(d2)+' '+inttostr(d3)+' '+inttostr(d4));
|
|
end;
|
|
cm_poexh:
|
|
begin
|
|
if not ReadByte(b) then exit;
|
|
Writeln(' ['+inttostr(dp)+'] POPEXCEPTION '+inttostr(b));
|
|
end;
|
|
else
|
|
begin
|
|
Writeln(' Disasm Error');
|
|
Break;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
Writeln('[PROCS]');
|
|
for t := 0 to i.FProcs.Count -1 do
|
|
begin
|
|
if TPSProcRec(i.FProcs[t]).ClassType = TIFExternalProcRec then
|
|
begin
|
|
if TPSExternalProcRec(i.FProcs[t]). Decl = '' then
|
|
Writeln('Proc ['+inttostr(t)+']: External: '+TPSExternalProcRec(i.FProcs[t]).Name)
|
|
else
|
|
Writeln('Proc ['+inttostr(t)+']: External Decl: '+Debug2Str(TIFExternalProcRec(i.FProcs[t]).Decl) + ' ' + TIFExternalProcRec(i.FProcs[t]).Name);
|
|
end else begin
|
|
if TPSInternalProcRec(i.FProcs[t]).ExportName <> '' then
|
|
begin
|
|
Writeln('Proc ['+inttostr(t)+'] Export: '+TPSInternalProcRec(i.FProcs[t]).ExportName+' '+TPSInternalProcRec(i.FProcs[t]).ExportDecl);
|
|
end else
|
|
Writeln('Proc ['+inttostr(t)+']');
|
|
Writeproc(i.FProcs[t]);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
Result := False;
|
|
try
|
|
I := TMyPSExec.Create;
|
|
I.AddSpecialProcImport('', @SpecImportProc, nil);
|
|
|
|
if not I.LoadData(Input) then begin
|
|
I.Free;
|
|
Exit;
|
|
end;
|
|
Output := '';
|
|
WriteTypes;
|
|
WriteVars;
|
|
WriteProcs;
|
|
I.Free;
|
|
except
|
|
exit;
|
|
end;
|
|
result := true;
|
|
end;
|
|
|
|
{ TMyIFPSExec }
|
|
|
|
function MyDummyProc(Caller: TPSExec; p: TIFExternalProcRec; Global, Stack: TPSStack): Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
|
|
function TMyPSExec.ImportProc(const Name: ShortString;
|
|
proc: TIFExternalProcRec): Boolean;
|
|
begin
|
|
Proc.ProcPtr := MyDummyProc;
|
|
result := true;
|
|
end;
|
|
|
|
function SpecImportProc(Sender: TObject; p: TIFExternalProcRec): Boolean;
|
|
begin
|
|
p.ProcPtr := MyDummyProc;
|
|
Result := True;
|
|
end;
|
|
|
|
end.
|