mirror of
https://github.com/cheat-engine/cheat-engine
synced 2026-08-15 02:26:08 -04:00
553 lines
14 KiB
ObjectPascal
Executable file
553 lines
14 KiB
ObjectPascal
Executable file
unit frmFloatingPointPanelUnit;
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{$MODE Delphi}
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{
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This window will be used to display the floating point values of a context structure
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}
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interface
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uses
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{$ifdef darwin}
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macport,
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{$endif}
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{$ifdef windows}
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windows,
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{$endif}
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LCLIntf, Messages, SysUtils, Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls, ExtCtrls, cefuncproc, ComCtrls, LResources, NewKernelHandler, commonTypeDefs;
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resourcestring
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rsFPPExtended = 'Extended (default)';
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type
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{ TfrmFloatingPointPanel }
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TfrmFloatingPointPanel = class(TForm)
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cbClassicView: TCheckBox;
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PageControl1: TPageControl;
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sbData: TScrollBox;
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TabSheet2: TTabSheet;
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Panel1: TPanel;
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cbContextSection: TComboBox;
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cbDisplayType: TComboBox;
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mData: TMemo;
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procedure cbClassicViewChange(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure ComboBox1Select(Sender: TObject);
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procedure Label4Click(Sender: TObject);
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procedure Label6DblClick(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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private
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{ Private declarations }
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context: PContext;
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contextCopy: TContext;
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procedure ValueDoubleClick(sender: TObject);
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public
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{ Public declarations }
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procedure UpdatedContext;
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procedure SetContextPointer(context: PContext);
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end;
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{$ifdef cpu64}
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procedure doubletoextended(float64:pointer; outextended:pointer); assembler;
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procedure extendedtodouble(float80:pointer;var outdouble:double); assembler;
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{$endif}
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var frmFloatingPointPanel:TfrmFloatingPointPanel;
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implementation
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uses MemoryBrowserFormUnit, processhandlerunit, debughelper;
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{$ifdef cpu64}
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//coded by mgr.inz.player
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procedure extendedtodouble(float80:pointer;var outdouble:double); assembler;
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var
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oldcw,newcw: word;
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_rcx: PtrUInt;
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asm
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mov _rcx,rcx
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fnstcw oldcw
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fwait
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mov cx,oldcw
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or cx,$0c3f
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mov newcw,cx
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mov rcx,_rcx
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fldcw newcw
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fld tbyte [float80]
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fstp qword [outdouble]
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fwait
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fldcw oldcw
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end;
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procedure doubletoextended(float64:pointer; outextended:pointer); assembler;
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var
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oldcw,newcw: word;
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_rcx: PtrUInt;
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asm
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mov _rcx,rcx
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fnstcw oldcw
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fwait
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mov cx,oldcw
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or cx,$0c3f
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mov newcw,cx
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mov rcx,_rcx
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fldcw newcw
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fld qword [float64]
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fstp tbyte [outextended]
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fwait
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fldcw oldcw
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end;
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{$endif}
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procedure TfrmFloatingPointPanel.SetContextPointer(context: PContext);
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var oldscrollpos: integer;
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begin
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self.context:=context;
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self.contextCopy:=context^;
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oldscrollpos:=mData.VertScrollBar.Position;
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UpdatedContext;
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if mData.VertScrollBar.Range>mData.VertScrollBar.Position then
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mData.VertScrollBar.Position:=oldscrollpos;
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end;
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procedure TfrmFloatingPointPanel.ValueDoubleClick(sender: TObject);
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var
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offset: integer;
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p: pointer;
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pba: pbytearray absolute p;
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pb: pbyte absolute p;
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pw: pword absolute p;
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pd: pdword absolute p;
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pq: Puint64 absolute p;
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ps: PSingle absolute p;
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pss: Pdouble absolute p;
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pe: PExtended absolute p;
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v: string;
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vd: double;
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begin
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p:=nil;
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if self<>frmFloatingPointPanel then exit; //readonly for all other panels
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if (debuggerthread=nil) or (debuggerthread.CurrentThread=nil) then exit;
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offset:=tlabel(Sender).tag;
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v:=tlabel(sender).caption;
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if inputquery('FPU Edit', 'Enter the new value', v) then
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begin
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case cbContextSection.itemindex of
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0:
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begin
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//fpu
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{$ifdef cpu64}
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p:=@debuggerthread.CurrentThread.context.FltSave.FloatRegisters[0];
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{$else}
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p:=@debuggerthread.CurrentThread.context.FloatSave.RegisterArea[0];
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{$endif}
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end;
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1:
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begin
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//xmm
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{$ifdef cpu64}
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p:=@debuggerthread.CurrentThread.context.FltSave.XmmRegisters[0];
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{$else}
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p:=@debuggerthread.CurrentThread.context.ext.XMMRegisters.LegacyXMM[0];
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{$endif}
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end;
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end;
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p:=@pba[offset];
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case cbDisplayType.itemindex of
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0: pb^:=strtoint('$'+v);
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1: pw^:=strtoint('$'+v);
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2: pd^:=strtoint('$'+v);
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3: pq^:=StrToInt64('$'+v);
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4: ps^:=StrToFloat(v);
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5: pss^:=StrToFloat(v);
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6:
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begin
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{$ifdef cpu64}
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vd:=StrToFloat(v);
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doubleToExtended(@vd, p);
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{$else}
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pe^:=StrToFloat(v);
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{$endif}
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end;
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end;
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context^:=debuggerthread.CurrentThread.context^;
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UpdatedContext;
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end;
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end;
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procedure TfrmFloatingPointPanel.UpdatedContext;
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{
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Called by the debugger and initial display
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Will fetch the debuggerthread's context and show the floating point values
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}
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var i,j: integer;
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line, row: integer;
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lbl: tlabel;
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s: single;
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d: double;
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center: integer;
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temp: integer;
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e: extended;
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str: string;
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tempstr: string;
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p: pointer;
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pba: pbytearray absolute p;
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pwa: pwordarray absolute p;
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pda: pdwordarray absolute p;
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pqa: Puint64Array absolute p;
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psa: PSingleArray absolute p;
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pssa: PdoubleArray absolute p;
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pea: PextendedArray absolute p;
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lw: longword;
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max: integer;
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oldscrollpos: integer;
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classic: boolean;
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procedure newLabel(text: string; id: integer);
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begin
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lbl:=tlabel.create(sbData);
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lbl.caption:=text;
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lbl.tag:=id;
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lbl.parent:=sbData;
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if id<>-1 then
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lbl.OnDblClick:=ValueDoubleClick;
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end;
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begin
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if context=nil then exit;
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mData.lines.BeginUpdate;
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sbdata.BeginUpdateBounds;
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try
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mData.Clear;
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while sbdata.ComponentCount>0 do
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sbdata.Components[0].Free;
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case cbContextSection.ItemIndex of
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0: //fpu
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begin
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if cbDisplayType.Items.Count=6 then
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begin
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cbDisplayType.Items.Add(rsFPPExtended); //make it the default selection
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cbDisplayType.OnSelect:=nil;
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cbDisplayType.itemindex:=6;
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cbDisplayType.OnSelect:=ComboBox1Select;
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end;
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case cbDisplayType.ItemIndex of
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0: sbData.ChildSizing.ControlsPerLine:=1+16; //byte
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1: sbData.ChildSizing.ControlsPerLine:=1+8; //word
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2: sbData.ChildSizing.ControlsPerLine:=1+4; //dword
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3: sbData.ChildSizing.ControlsPerLine:=1+2; //8 byte
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4: sbData.ChildSizing.ControlsPerLine:=1+4; //single
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5: sbData.ChildSizing.ControlsPerLine:=1+2; //double
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6: sbData.ChildSizing.ControlsPerLine:=1+1; //extended
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end;
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for i:=0 to 7 do
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begin
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newlabel('ST('+inttostr(i)+'):',-1);
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{$ifdef cpu64}
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p:=@context.FltSave.FloatRegisters[i];
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{$else}
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p:=@context.FloatSave.RegisterArea[i*10];
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{$endif}
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case cbDisplayType.ItemIndex of
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0: //byte
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begin
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str:='';
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for j:=0 to {$ifdef cpu64}15{$else}9{$endif} do
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begin
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str:=str+inttohex(pba[j],2);
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if j<15 then
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str:=str+' _ ';
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newLabel(inttohex(pba[j],2), (i*{$ifdef cpu64}16{$else}10{$endif})+j);
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end;
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mData.Lines.Add(str);
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end;
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1:
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begin
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mData.Lines.Add(inttohex(pwa[0],4)+' _ '+inttohex(pwa[1],4)+' _ '+inttohex(pwa[2],4)+' _ '+inttohex(pwa[3],4)+' _ '+inttohex(pwa[4],4){$ifdef cpu64}+' _ '+inttohex(pwa[5],4)+' _ '+inttohex(pwa[6],4)+' _ '+inttohex(pwa[7],4){$endif}); //2byte
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for j:=0 to {$ifdef cpu64}7{$else}3{$endif} do
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newLabel(inttohex(pwa[j],4), (i*{$ifdef cpu64}16{$else}10{$endif})+(j*2));
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end;
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2:
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begin
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mData.Lines.Add(inttohex(pda[0],8)+' _ '+inttohex(pda[1],8){$ifdef cpu64}+' _ '+inttohex(pda[2],8)+' _ '+inttohex(pda[3],8){$endif}); //4byte
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for j:=0 to {$ifdef cpu64}3{$else}1{$endif} do
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newLabel(inttohex(pda[j],8), (i*{$ifdef cpu64}16{$else}10{$endif})+(j*4));
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end;
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3:
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begin
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mData.Lines.Add(inttohex(pqa[0],16){$ifdef cpu64}+' _ '+inttohex(pqa[1],16){$endif}); //8 byte
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for j:=0 to {$ifdef cpu64}1{$else}0{$endif} do
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newLabel(inttohex(pqa[j],17), (i*{$ifdef cpu64}16{$else}10{$endif})+(j*8));
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end;
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4:
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begin
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mData.Lines.Add(format('%f - %f'{$ifdef cpu64}+' - %f - %f'{$endif}, [psa[0], psa[1]{$ifdef cpu64}, psa[2], psa[3]{$endif}])); //single
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for j:=0 to {$ifdef cpu64}3{$else}1{$endif} do
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newLabel(format('%f',[psa[j]]),(i*{$ifdef cpu64}16{$else}10{$endif})+(j*4));
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end;
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5:
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begin
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mData.Lines.Add(format('%f'{$ifdef cpu64}+' - %f'{$endif}, [pssa[0]{$ifdef cpu64}, pssa[1]{$endif}])); //double
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for j:=0 to {$ifdef cpu64}1{$else}0{$endif} do
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newLabel(format('%f',[pssa[j]]), (i*{$ifdef cpu64}16{$else}10{$endif})+(j*8));
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end;
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6:
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begin
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{$ifdef cpu64}
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extendedtodouble(p, d);
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{$else}
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d:=pea[0];
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{$endif}
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mData.Lines.Add(format('%f', [d])); //extended
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newLabel(format('%f',[d]), (i*{$ifdef cpu64}16{$else}10{$endif})); //(i*{$ifdef cpu64}16{$else}10{$endif}));
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end;
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end;
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end;
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end;
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1: //xmm
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begin
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if cbDisplayType.Items.Count>6 then
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begin
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if cbDisplayType.ItemIndex=6 then
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begin
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cbDisplayType.OnSelect:=nil;
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cbDisplayType.ItemIndex:=5;
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cbDisplayType.OnSelect:=combobox1select;
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end;
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cbDisplayType.Items.Delete(6);
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end;
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{$ifdef cpu64}
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if processhandler.is64bit then
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max:=15
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else
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{$endif}
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max:=7;
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case cbDisplayType.ItemIndex of
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0: sbData.ChildSizing.ControlsPerLine:=1+16; //byte
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1: sbData.ChildSizing.ControlsPerLine:=1+8; //word
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2: sbData.ChildSizing.ControlsPerLine:=1+4; //dword
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3: sbData.ChildSizing.ControlsPerLine:=1+2; //8 byte
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4: sbData.ChildSizing.ControlsPerLine:=1+4; //single
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5: sbData.ChildSizing.ControlsPerLine:=1+2; //double
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6: sbData.ChildSizing.ControlsPerLine:=1;
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end;
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for i:=0 to max do
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begin
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{$ifdef cpu64}
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p:=@context.FltSave.XmmRegisters[i];
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{$else}
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p:=@context.ext.XMMRegisters.LegacyXMM[i];
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{$endif}
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newLabel('XMM'+inttostr(i)+':', -1);
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case cbDisplayType.ItemIndex of
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0: //byte
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begin
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str:='';
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for j:=0 to 15 do
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begin
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str:=str+inttohex(pba[j],2);
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if j<15 then
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str:=str+' _ ';
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newLabel(inttohex(pba[j],2), i*16+j);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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1: //word
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begin
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str:='';
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for j:=0 to 7 do
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begin
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str:=str+inttohex(pwa[j],4);
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if j<7 then
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str:=str+' _ ';
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newLabel(inttohex(pwa[j],4), i*16+j*2);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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2: //dword
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begin
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str:='';
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for j:=0 to 3 do
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begin
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str:=str+inttohex(pda[j],8);
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if j<3 then
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str:=str+' _ ';
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newLabel(inttohex(pda[j],8), i*16+j*4);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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3: //8 byte
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begin
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str:='';
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for j:=0 to 1 do
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begin
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str:=str+inttohex(pqa[j],16);
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if j<1 then
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str:=str+' _ ';
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newLabel(inttohex(pqa[j],16), i*16+j*8);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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4:
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begin
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str:='';
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for j:=0 to 3 do
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begin
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str:=str+format('%f',[psa[j]]);
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if j<3 then
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str:=str+' _ ';
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newLabel(format('%f',[psa[j]]), i*16+j*4);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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5:
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begin
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str:='';
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for j:=0 to 1 do
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begin
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str:=str+format('%f',[pssa[j]]);
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if j<1 then
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str:=str+' _ ';
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newLabel(format('%f',[pssa[j]]), i*16+j*8);
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end;
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mData.Lines.Add('xmm'+inttostr(i)+':'+str);
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end;
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end;
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end;
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end;
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end;
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finally
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mData.lines.endupdate;
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sbdata.EndUpdateBounds;
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end;
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end;
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procedure TfrmFloatingPointPanel.FormShow(Sender: TObject);
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begin
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if self<>frmFloatingPointPanel then //only show the new one on the memview version
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begin
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cbClassicView.checked:=true;
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cbClassicView.visible:=false;
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end;
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mData.Font.Height:=GetFontData(font.Handle).Height;
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UpdatedContext;
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end;
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procedure TfrmFloatingPointPanel.FormDestroy(Sender: TObject);
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begin
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SaveFormPosition(self);
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end;
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procedure TfrmFloatingPointPanel.cbClassicViewChange(Sender: TObject);
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begin
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sbData.Visible:=not cbClassicView.checked;
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end;
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procedure TfrmFloatingPointPanel.ComboBox1Select(Sender: TObject);
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begin
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UpdatedContext;
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end;
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procedure TfrmFloatingPointPanel.Label4Click(Sender: TObject);
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begin
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end;
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procedure TfrmFloatingPointPanel.Label6DblClick(Sender: TObject);
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begin
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end;
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procedure TfrmFloatingPointPanel.FormCreate(Sender: TObject);
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begin
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cbDisplayType.ItemIndex:=4;
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LoadFormPosition(self);
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end;
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initialization
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{$i frmFloatingPointPanelUnit.lrs}
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end.
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