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DCU_Out.pas
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DCU_Out.pas
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unit DCU_Out;
interface
(*
The output module of the DCU32INT utility by Alexei Hmelnov.
(Pay attention on the SoftNL technique for pretty-printing.)
----------------------------------------------------------------------------
E-Mail: alex@icc.ru
http://hmelnov.icc.ru/DCU/
----------------------------------------------------------------------------
See the file "readme.txt" for more details.
------------------------------------------------------------------------
IMPORTANT NOTE:
This software is provided 'as-is', without any expressed or implied warranty.
In no event will the author be held liable for any damages arising from the
use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented, you must not
claim that you wrote the original software.
2. Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*)
uses
{$IFDEF UNICODE}AnsiStrings,{$ENDIF}SysUtils, FixUp;
type
TIncPtr = PAnsiChar;
TDasmMode = (dasmSeq,dasmCtlFlow,dasmDataFlow);
TOutFmt = (ofmtText,ofmtHTM);
const
DefaultExt: array[TOutFmt] of String = ('.int','.htm');
{ Options: }
var
InterfaceOnly: boolean=false;
ShowImpNames: boolean=true;
ShowTypeTbl: boolean=false;
ShowAddrTbl: boolean=false;
ShowDataBlock: boolean=false;
ShowFixupTbl: boolean=false;
ShowLocVarTbl: boolean=false;
ShowFileOffsets: boolean=false;
ShowAuxValues: boolean=false;
ResolveMethods: boolean=true;
ResolveConsts: boolean=true;
FixCommentChars: boolean=true;
ShowDotTypes: boolean=false;
ShowSelf: boolean=false;
ShowVMT: boolean=false;
ShowHeuristicRefs: boolean=true;
ShowImpNamesUnits: boolean=false;
DasmMode: TDasmMode = dasmSeq;
OutFmt: TOutFmt = ofmtText;
var
GenVarCAsVars: boolean = false;
var
NoNamePrefix: AnsiString = '_N%_';
DotNamePrefix: AnsiString = '_D%_';
procedure SetShowAll;
procedure PutCh(ch: AnsiChar); overload;
procedure PutCh(Ch: Char); overload;
procedure PutS(const S: AnsiString);
procedure PutSFmt(const Fmt: AnsiString; const Args: array of const);
function ShiftNLOfs(d: Integer): Integer{Old NLOfs};
procedure NL;
procedure NLAux;
procedure SoftNL;
procedure PutSpace;
procedure SetShowAuxValues(V: Boolean);
procedure OpenAux;
procedure CloseAux;
function HideAux: Integer; //Aux0
procedure RestoreAux(Aux0: Integer);
procedure RemOpen0;
procedure RemOpen;
procedure RemClose0;
procedure RemClose;
procedure AuxRemOpen;
procedure AuxRemClose;
procedure PutSFmtRem(const Fmt: AnsiString; const Args: array of const);
procedure PutSFmtRemAux(const Fmt: AnsiString; const Args: array of const);
procedure PutKW(const S: AnsiString);
procedure PutKWSp(const S: AnsiString);
procedure PutStrConst(const S: AnsiString);
procedure PutStrConstQ(const S: AnsiString);
procedure PutAddrDefStr(const S: AnsiString; hDef: integer);
procedure PutMemRefStr(const S: AnsiString; Ofs: integer);
procedure PutHexOffset(Ofs: LongInt);
procedure PutInt(i: LongInt);
procedure PutHex(i: LongInt);
procedure MarkDefStart(hDef: integer);
procedure MarkMemOfs(Ofs: integer);
function CharDumpStr(var V;N : integer): ShortString;
function DumpStr(var V;N : integer): AnsiString;
function IntLStr(DP: Pointer; Sz: Cardinal; Neg: boolean): AnsiString;
function CharStr(Ch: AnsiChar): AnsiString;
function WCharStr(WCh: WideChar): AnsiString;
function BoolStr(DP: Pointer; DS: Cardinal): AnsiString;
function StrConstStr(CP: PAnsiChar; L: integer): AnsiString;
function ShowStrConst(DP: Pointer; DS: Cardinal): integer {Size used};
function ShowUnicodeStrConst(DP: Pointer; DS: Cardinal): integer {Size used}; //Ver >=verD12
function ShowUnicodeResStrConst(DP: Pointer; DS: Cardinal): integer {Size used}; //Ver >=verD12
function TryShowPCharConst(DP: PAnsiChar; DS: Cardinal): integer {Size used};
function FixFloatToStr(const E: Extended): AnsiString;
const
cSoftNL=#0;
//cSepCh=#1;
MaxOutWidth: Cardinal = 75;
MaxNLOfs: Cardinal = 31 {Should be < Ord(' ')};
type
TStrInfoRec = packed record
Ofs: Word;
Inf: SmallInt;
DP: Pointer;
end ;
type
TBaseWriter = class
protected
FAuxLevel: integer;
FRemLevel: integer;
FOutLineNum: integer;
FNLOfs: cardinal;
BufNLOfs: Cardinal;
BufLen: cardinal;
WasSoftNL: Boolean;
StrInfoCnt: integer;
StrInfoOfsLast: integer;
Buf: array[0..$800-1] of AnsiChar;
StrInfoTbl: array[0..$7F] of TStrInfoRec;
procedure PutStrInfo(Info: integer; Data: Pointer);
function GetSoftNLOfs(var ResNLOfs: Cardinal): integer;
procedure FlushBufRange(Start,W: integer);
procedure FlushStrInfo(Info: integer; Data: Pointer);
procedure FillNL(ANLOfs: Cardinal);
procedure FlushBufPart(W,ANLOfs: integer);
function FlushSoftNL(W: Cardinal): boolean;
procedure BufChars(CP: PAnsiChar; Len: integer);
protected
FInfo: integer; FData: Pointer;
FStarted: Boolean;
procedure WriteEnd; virtual;
procedure WriteCP(CP: PAnsiChar; Len: integer); virtual; abstract;
procedure NL; virtual; abstract;
function OpenStrInfo(Info: integer; Data: Pointer): boolean; virtual;
procedure CloseStrInfo; virtual;
procedure MarkDefStart(hDef: integer); virtual;
procedure MarkMemOfs(Ofs: integer); virtual;
procedure Flush; virtual;
public
constructor Create;
destructor Destroy; override;
procedure WriteStart; virtual;
procedure Reset; virtual;
property OutLineNum: integer read FOutLineNum;
property AuxLevel: integer read FAuxLevel;
property RemLevel: integer read FRemLevel;
property NLOfs: cardinal read FNLOfs write FNLOfs;
end ;
TTextFileWriter = class(TBaseWriter)
protected
FRes: TextFile;
procedure WriteCP(CP: PAnsiChar; Len: integer); override;
procedure NL; override;
procedure Flush; override;
public
constructor Create(const FNRes: String);
destructor Destroy; override;
end ;
THTMWriter = class(TTextFileWriter)
protected
FWasStr: boolean;
procedure WriteStart; override;
procedure WriteEnd; override;
procedure WriteCP(CP: PAnsiChar; Len: integer); override;
procedure NL; override;
function OpenStrInfo(Info: integer; Data: Pointer): boolean; override;
procedure CloseStrInfo; override;
procedure MarkDefStart(hDef: integer); override;
procedure MarkMemOfs(Ofs: integer); override;
end ;
TStringWriter = class(TBaseWriter)
protected
FPrev: TBaseWriter;
FBuf: AnsiString;
FPos: Integer;
procedure WriteCP(CP: PAnsiChar; Len: integer); override;
procedure NL; override;
public
function GetResult: AnsiString;
procedure Reset; override;
end ;
var
Writer: TBaseWriter = Nil;
function InitOut(const FNRes: String): TBaseWriter;
//procedure DoneOut;
procedure FlushOut;
procedure ReportExc(const Msg: AnsiString);
function ReplaceWriter(W: TBaseWriter): TBaseWriter;
function SetStringWriter: TStringWriter;
procedure RestorePrevWriter;
const
siEnd = 0;
siRem = 1;
siKeyWord = 2;
siStrConst = 3;
siAddrDef = 4;
siMemRef = 5;
siMaxRange = 5;
siDefStart = 6;
siMemOfs = 7;
siMax = 8;
procedure ShowDump(DP,DPFile0: TIncPtr; FileSize,SizeDispl,Size: Cardinal;
Ofs0Displ,Ofs0,WMin: Cardinal; FixCnt: integer; FixTbl: PFixupTbl;
FixUpNames,ShowFileOfs: boolean);
implementation
uses
DCU32{CurUnit}, DCU_In;
procedure SetShowAll;
begin
ShowImpNames := true;
ShowTypeTbl := true;
ShowAddrTbl := true;
ShowDataBlock := true;
ShowFixupTbl := true;
ShowLocVarTbl := true;
ShowFileOffsets := true;
ShowAuxValues := true;
ResolveMethods := true;
ResolveConsts := true;
FixCommentChars := false;
ShowDotTypes := true;
ShowSelf := true;
ShowVMT := true;
ShowImpNamesUnits := true;
end ;
{ TBaseWriter. }
constructor TBaseWriter.Create;
begin
inherited Create;
Reset;
end ;
destructor TBaseWriter.Destroy;
begin
if FStarted then
WriteEnd;
inherited Destroy;
end ;
procedure TBaseWriter.Reset;
//Restore the initial state of the writer (as if it was just created)
begin
FNLOfs := 0;
BufLen := 0;
BufNLOfs := FNLOfs;
FOutLineNum := 0;
WasSoftNL := false;
FAuxLevel := 0;
FRemLevel := 0;
StrInfoCnt := 0;
StrInfoOfsLast := 0;
FInfo := 0;
FData := Nil;
FStarted := false;
end ;
procedure TBaseWriter.WriteStart;
begin
FStarted := true;
end ;
procedure TBaseWriter.WriteEnd;
begin
FStarted := false;
end ;
function TBaseWriter.OpenStrInfo(Info: integer; Data: Pointer): boolean;
begin
if Info<=siMaxRange then begin
FInfo := Info;
FData := Data;
Result := true;
Exit;
end ;
Result := false;
case Info of
siDefStart: MarkDefStart(Integer(Data));
siMemOfs: MarkMemOfs(Integer(Data));
end ;
end ;
procedure TBaseWriter.CloseStrInfo;
begin
FInfo := 0;
FData := Nil;
end ;
procedure TBaseWriter.MarkDefStart(hDef: integer);
begin
end ;
procedure TBaseWriter.MarkMemOfs(Ofs: integer);
begin
end ;
procedure TBaseWriter.Flush;
begin
end ;
{-----}
procedure TBaseWriter.PutStrInfo(Info: integer; Data: Pointer);
begin
if (RemLevel>0)and(Info<=siMaxRange{Embedded ranges are not allowed}) then
Exit;
if StrInfoCnt>High(StrInfoTbl) then
Exit;
with StrInfoTbl[StrInfoCnt] do begin
Ofs := BufLen-StrInfoOfsLast;
Inf := Info;
DP := Data;
end ;
StrInfoOfsLast := BufLen;
Inc(StrInfoCnt);
end ;
function TBaseWriter.GetSoftNLOfs(var ResNLOfs: Cardinal): integer;
var
i: integer;
MinOfs,Ofs: integer;
begin
MinOfs := Ord(' ');
Result := BufLen;
for i:=BufLen-1 downto 0 do begin
Ofs := Ord(Buf[i]);
if Ofs<MinOfs then begin
MinOfs := Ofs;
Result := i;
end ;
end ;
if MinOfs<Ord(' ') then
ResNLOfs := MinOfs
else
ResNLOfs := FNLOfs;
end ;
procedure TBaseWriter.FlushBufRange(Start,W: integer);
var
DP: PAnsiChar;
SaveCh: AnsiChar;
begin
if W<=0 then
Exit;
DP := Buf+Start;
SaveCh := DP[W];
DP[W] := #0;
WriteCP(DP,W); // Write(FRes,DP);
DP[W] := SaveCh;
end ;
procedure TBaseWriter.FlushStrInfo(Info: integer; Data: Pointer);
begin
if Info=0 then
CloseStrInfo
else
OpenStrInfo(Info,Data);
end ;
procedure TBaseWriter.FillNL(ANLOfs: Cardinal);
var
S: array[Byte]of AnsiChar{ShortString};
W: integer;
begin
W := ANLOfs;
if W<0 then
W := 0
else if W>MaxNLOfs then
W := MaxNLOfs;
{S[0] := Chr(W);
FillChar(S[1],W,' ');}
FillChar(S[0],W,' ');
S[W] := #0;
WriteCP(S,W);
end ;
procedure TBaseWriter.FlushBufPart(W,ANLOfs: integer);
var
i,hSI: integer;
// S: String;
SIOfs{,SIW}: integer;
procedure FlushSI(Skip: boolean);
var
SIW: integer;
begin
while hSI<StrInfoCnt do begin
SIW := StrInfoTbl[hSI].Ofs;
if SIOfs+SIW>W then
break;
if not Skip then
FlushBufRange(SIOfs,SIW);
Inc(SIOfs,SIW);
with StrInfoTbl[hSI] do
FlushStrInfo(Inf,DP);
Inc(hSI);
end ;
end ;
begin
SIOfs := 0;
hSI := 0;
if W>0 then begin
for i:=0 to W-1 do
if Buf[i]<' ' then
Buf[i] := ' ';
FillNL(BufNLOfs);
// SetString(S,Buf,W);
// Write(FRes,S);
FlushSI(false{Skip});
if SIOfs<W then
FlushBufRange(SIOfs,W-SIOfs);
end ;
NL; //Writeln(FRes);
Inc(FOutLineNum);
while (W<BufLen)and(Buf[W]<=' ') do
Inc(W);
FlushSI(true{Skip});
if W<BufLen then
move(Buf[W],Buf,BufLen-W);
BufLen := BufLen-W;
BufNLOfs := ANLOfs;
if hSI>=StrInfoCnt then
StrInfoCnt := 0
else begin
if hSI>0 then begin
Dec(StrInfoCnt,hSI);
move(StrInfoTbl[hSI],StrInfoTbl[0],StrInfoCnt*SizeOf(TStrInfoRec));
end ;
if StrInfoCnt>0 then
Dec(StrInfoTbl[0].Ofs,W-SIOfs);
end ;
if StrInfoCnt>0 then
Dec(StrInfoOfsLast,W)
else
StrInfoOfsLast := 0;
end ;
function TBaseWriter.FlushSoftNL(W: Cardinal): boolean;
var
Split: integer;
ResNLOfs: Cardinal;
begin
while ((BufNLOfs+BufLen+W)>MaxOutWidth)and(BufLen>0) do begin
Split := GetSoftNLOfs(ResNLOfs);
{Break only at the soft NL splits: }
if Split>=BufLen then
Break;
FlushBufPart(Split,ResNLOfs);
WasSoftNL := true;
end ;
Result := (BufNLOfs+BufLen+W)<= MaxOutWidth;
end ;
procedure TBaseWriter.BufChars(CP: PAnsiChar; Len: integer);
var
ch: AnsiChar;
begin
// FlushSoftNL(Len);
While Len>0 do begin
if BufLen>=High(Buf) then
Exit {Just in case};
ch := CP^;
Inc(CP);
Dec(Len);
if ch<' ' then begin
if FNLOfs>MaxNLOfs then
ch := AnsiChar(MaxNLOfs)
else
ch := AnsiChar(FNLOfs);
end
else if (RemLevel>0)and FixCommentChars then begin
if ch='{' then
ch := '('
else if ch='}' then
ch := ')';
end ;
Buf[BufLen] := ch;
Inc(BufLen);
if ch<' ' then
FlushSoftNL(0);
end ;
FlushSoftNL(0);
// move(S[1],Buf[BufLen],Length(S));
// Inc(BufLen,Length(S));
{ if FlushSoftNL(Length(S)) then begin
move(S[1],Buf[BufLen],Length(S));
Inc(BufLen,Length(S));
end
else begin
FillNL(BufNLOfs);
Write(FRes,S);
Writeln(FRes);
end ;}
end ;
{ TTextFileWriter. }
constructor TTextFileWriter.Create(const FNRes: String);
begin
inherited Create;
AssignFile(FRes,FNRes);
TTextRec(FRes).Mode := fmClosed;
Rewrite(FRes); //Test whether the FNRes is a correct file name
end ;
destructor TTextFileWriter.Destroy;
begin
if TTextRec(FRes).Mode<>fmClosed then begin
WriteEnd;
Close(FRes);
end ;
inherited Destroy;
end ;
procedure TTextFileWriter.WriteCP(CP: PAnsiChar; Len: integer);
begin
Write(FRes,CP);
end ;
procedure TTextFileWriter.NL;
begin
Writeln(FRes);
end ;
procedure TTextFileWriter.Flush;
begin
System.Flush(FRes);
end ;
{ THTMWriter. }
procedure THTMWriter.WriteStart;
begin
inherited WriteStart;
Writeln(FRes,'<HTML><HEAD><STYLE TYPE="text/css"> I {color: #008080} '+
'EM {color: #008000} A:link, A:visited, A:active {text-decoration: none; color: #800000} '+
'A:hover { text-decoration: underline; color: #C08000 }</STYLE></HEAD><BODY><PRE>');
end ;
procedure THTMWriter.WriteEnd;
begin
Writeln(FRes,'</PRE></BODY></HTML>');
inherited WriteEnd;
end ;
procedure THTMWriter.WriteCP(CP: PAnsiChar; Len: integer);
const
sTags: array[1..siMaxRange]of String = ('<I>','<B>','<EM>','','');
var
S: String;
var
Buf: ShortString;
i,j: integer;
Ch: AnsiChar;
procedure FlushBuf;
begin
Buf[0] := AnsiChar(j);
Write(FRes,Buf);
j := 0;
end ;
procedure PutS(C: PAnsiChar);
begin
while C^<>#0 do begin
Inc(j);
Buf[j] := C^;
Inc(C);
end ;
end ;
begin
if not FWasStr and(CP^<>#0)and(FInfo>0) then begin
case FInfo of
siAddrDef: S := Format('<A HREF="#A%d">',[integer(FData)]);
siMemRef: S := Format('<A HREF="#M%x">',[integer(FData)]);
else
S := sTags[FInfo];
end ;
Write(FRes,S);
FWasStr := true;
end ;
j := 0;
for i:=0 to Len-1 do begin
Ch := CP[i];
case Ch of
'<': PutS('<');
'>': PutS('>');
'&': PutS('&');
'"': PutS('"');
else
Inc(j);
Buf[j] := Ch;
end;
if j>240 then
FlushBuf;
end ;
FlushBuf;
// inherited WriteCP(CP,Len);
end ;
procedure THTMWriter.NL;
begin
Writeln(FRes);
end ;
function THTMWriter.OpenStrInfo(Info: integer; Data: Pointer): boolean;
begin
Result := inherited OpenStrInfo(Info,Data);
if Result then
FWasStr := false;
end ;
procedure THTMWriter.CloseStrInfo;
const
sTags: array[1..siMaxRange]of String = ('</I>','</B>','</EM>','</A>','</A>');
begin
if FWasStr and(FInfo>0) then
Write(FRes,sTags[FInfo]);
inherited CloseStrInfo;
FWasStr := false;
end ;
procedure THTMWriter.MarkDefStart(hDef: integer);
begin
Write(FRes,Format('<A NAME=A%d>',[hDef]));
end ;
procedure THTMWriter.MarkMemOfs(Ofs: integer);
begin
Write(FRes,Format('<A NAME=M%x>',[Ofs]));
end ;
{ TStringWriter. }
procedure TStringWriter.Reset;
begin
inherited Reset;
FPos := 0;
end ;
procedure TStringWriter.WriteCP(CP: PAnsiChar; Len: integer);
var
P: Integer;
begin
if Len<=0 then
Exit;
P := FPos+Len;
if P>Length(FBuf) then begin
P := P*2;
if P<256 then
P := 256;
SetLength(FBuf,P);
end ;
move(CP^,FBuf[FPos+1],Len*SizeOf(AnsiChar));
Inc(FPos,Len);
end ;
procedure TStringWriter.NL;
begin
WriteCP(' ',1); {replace by space}
end ;
function TStringWriter.GetResult: AnsiString;
begin
FlushOut; //!!!
if FPos<=0 then
Result := ''
else
SetString(Result,PAnsiChar(FBuf),FPos-1{Remove last NL});
end ;
procedure PutStrInfoEnd;
begin
Writer.PutStrInfo(0,Nil);
end ;
procedure PutCh(ch: AnsiChar);
begin
if Writer.AuxLevel>0 then
Exit;
Writer.BufChars(@Ch,1);
end ;
procedure PutCh(Ch: Char);
begin
PutCh(AnsiChar(Ch));
end;
procedure PutS(const S: AnsiString);
begin
if Writer.AuxLevel>0 then
Exit;
if S='' then
Exit;
Writer.BufChars(PAnsiChar(S),Length(S));
end ;
procedure PutSFmt(const Fmt: AnsiString; const Args: array of const);
begin
if Writer.AuxLevel>0 then
Exit;
PutS({$IFDEF UNICODE}AnsiStrings.{$ENDIF}Format(Fmt,Args));
end ;
procedure FlushOut;
begin
Writer.FlushBufPart(Writer.BufLen,Writer.NLOfs);
end ;
procedure ReportExc(const Msg: AnsiString);
begin
if Writer=Nil then
Exit;
Writer.NL;
Writer.WriteCP(PAnsiChar(Msg),Length(Msg));
Writer.NL;
Writer.Flush;
end ;
function ReplaceWriter(W: TBaseWriter): TBaseWriter;
begin
Result := Writer;
Writer := W;
end ;
var
StringWriterList: TStringWriter = Nil;
function SetStringWriter: TStringWriter;
begin
if StringWriterList=Nil then
Result := TStringWriter.Create
else begin
Result := StringWriterList;
StringWriterList := TStringWriter(StringWriterList.FPrev);
Result.Reset;
end ;
Result.FPrev := ReplaceWriter(Result);
end ;
procedure RestorePrevWriter;
var
SW: TStringWriter;
begin
if (Writer=Nil)or not(Writer is TStringWriter) then
raise Exception.Create('Error restoring previous writer');
SW := TStringWriter(ReplaceWriter(TStringWriter(Writer).FPrev));
SW.FPrev := StringWriterList;
StringWriterList := SW;
end ;
procedure FreeStringWriterList;
var
SW: TStringWriter;
begin
while StringWriterList<>Nil do begin
SW := StringWriterList;
StringWriterList := TStringWriter(StringWriterList.FPrev);
SW.Free;
end ;
end ;
function ShiftNLOfs(d: Integer): Integer{Old NLOfs};
begin
Result := Writer.FNLOfs;
Writer.FNLOfs := Result+d;
end ;
procedure NL;
begin
if Writer.AuxLevel>0 then
Exit;
if not Writer.WasSoftNL or(Writer.BufLen>0) then
FlushOut
else
Writer.BufNLOfs := Writer.NLOfs;
Writer.WasSoftNL := false;
end ;
procedure NLAux;
begin
Inc(Writer.FAuxLevel);
NL;
Dec(Writer.FAuxLevel);
end ;
procedure SoftNL;
begin
PutCh(cSoftNL);
end ;
function InitOut(const FNRes: String): TBaseWriter;
begin
if Writer=Nil then begin
case OutFmt of
ofmtHTM: Writer := THTMWriter.Create(FNRes);
else
Writer := TTextFileWriter.Create(FNRes);
end ;
Writer.WriteStart;
end ;
Result := Writer;
end ;
{
procedure DoneOut;
begin
if Writer<>Nil then begin
Writer.WriteEnd;
Writer.Free;
Writer := Nil;
end ;
end ;
}
function CharDumpStr(var V;N : integer): ShortString;
var
C : array[1..255]of AnsiChar absolute V;
i : integer;
begin
if N>255 then
N := 255;
CharDumpStr[0] := AnsiChar(N);
for i := 1 to N do
if C[i] < ' ' then
CharDumpStr[i] := '.'
else
CharDumpStr[i] := C[i] ;
end ;
function CharNStr(Ch: AnsiChar; N : integer): ShortString;
begin
SetLength(Result,N);
FillChar(Result[1],N,Ch);
end ;
type
TByteChars = packed record Ch0,Ch1: AnsiChar end;
const
Digit : array[0..15] of AnsiChar = '0123456789ABCDEF';
function ByteChars(B: Byte): Word;
var
Ch: TByteChars;
begin
Ch.Ch0 := Digit[B shr 4];
Ch.Ch1 := Digit[B and $f];
ByteChars := Word(Ch);
end ;
function DumpStr(var V;N : integer): AnsiString;
var
i : integer ;
BP: ^Byte;
P: Pointer;
begin
if N<=0 then begin
Result := '';
Exit;
end ;
SetLength(Result,N*3-1);
P := @Result[1];
BP := @V;
for i := 1 to N do begin
Word(P^) := ByteChars(BP^);
Inc(TIncPtr(P),2);
AnsiChar(P^) := ' ';
Inc(TIncPtr(P));
Inc(TIncPtr(BP));
end ;
Dec(TIncPtr(P));
AnsiChar(P^) := #0;
end ;
const
OfsFmtS='%0.0x: %2:s';
FileOfsFmtS='%0.0x_%0.0x: %s';
function GetNumHexDigits(Sz: Cardinal): Cardinal;
begin
Result := 0;
while Sz>0 do begin
Inc(Result);
Sz := Sz shr 4;
end ;
end ;
procedure SetHexFmtNumDigits(var FmtS: AnsiString; p: integer; Sz: Cardinal);
var
N: Cardinal;
LCh: AnsiChar;
begin
N := GetNumHexDigits(Sz);
LCh := AnsiChar(Ord('0')+N);
FmtS[p] := LCh;
FmtS[p+2] := LCh;
end ;
procedure ShowDump(DP, {File 0 address, show file offsets if present}
DPFile0: TIncPtr; {Dump address}
FileSize,SizeDispl {used to calculate display offset digits},
Size {Dump size}: Cardinal;
Ofs0Displ {initial display offset},
Ofs0 {offset in DCU data block - for fixups},
WMin{Minimal dump width (in bytes)}: Cardinal;
FixCnt: integer; FixTbl: PFixupTbl;
FixUpNames,ShowFileOfs: boolean);
var
LP: TIncPtr;
{LS,}W: Cardinal;
FmtS,DS,FixS,FS,DumpFmt: AnsiString;
DSP,CP: PAnsiChar;
{Sz,}LSz,dOfs: Cardinal;
// Ch: Char;
// IsBig: boolean;
FP: PFixupRec;
K: Byte;
//N: PName;
begin
if integer(Size)<=0 then begin
PutS('[]');
Exit;
end ;
if not ShowFileOfs{DPFile0=Nil} then
FmtS := OfsFmtS
else begin
FmtS := FileOfsFmtS;
SetHexFmtNumDigits(FmtS,8,FileSize);
end ;
if SizeDispl=0 then
SizeDispl := Size;
SetHexFmtNumDigits(FmtS,2,Ofs0Displ+SizeDispl);
W := 16;
LP := DP;
// IsBig := Size>W;
if Size<W then begin
W := Size;
if W<WMin then
W := WMin;
end ;
if WMin>0 then
DumpFmt := '|%-'+IntToStr(3*W-1)+'s|'
else
DumpFmt := '|%s|';
FP := Pointer(FixTbl);
if FP=Nil then
FixCnt := 0 {Just in case};