97 lines
2.1 KiB
ObjectPascal
97 lines
2.1 KiB
ObjectPascal
unit FormC64;
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interface
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uses
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Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
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Vcl.Controls, Vcl.Forms, Vcl.Dialogs, C64;
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const
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ScreenZoom = 2;
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ScreenWidth = 320 * ScreenZoom;
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ScreenHeight = 200 * ScreenZoom;
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ColorTable: array [0 .. 2] of Cardinal = ($801010, $D0A0A0, $D0A0A0);
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type
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TFrmC64 = class(TForm)
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procedure FormCreate(Sender: TObject);
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procedure FormKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure FormKeyPress(Sender: TObject; var Key: Char);
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procedure FormDestroy(Sender: TObject);
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private
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{ Private declarations }
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procedure OnScreenWrite(var Msg: TMessage); message WM_SCREEN_WRITE;
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public
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{ Public declarations }
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LastKey: Char;
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C64: TC64;
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end;
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var
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FrmC64: TFrmC64;
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implementation
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{$R *.dfm}
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procedure TFrmC64.FormCreate(Sender: TObject);
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begin
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ClientWidth := ScreenWidth;
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ClientHeight := ScreenHeight;
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Canvas.Font.Name := 'cbm';
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Canvas.Font.Height := 8 * ScreenZoom;
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Canvas.Brush.Style := bsSolid;
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C64 := TC64.Create;
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C64.WndHandle := Handle;
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C64.LoadROM('..\ROMs\basic.901226-01.bin', $A000);
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C64.LoadROM('..\ROMs\kernal.901227-03.bin', $E000);
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C64.Exec;
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end;
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procedure TFrmC64.FormDestroy(Sender: TObject);
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begin
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C64.Free;
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end;
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procedure TFrmC64.FormKeyPress(Sender: TObject; var Key: Char);
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begin
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C64.SetKey(Key, 1);
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LastKey := Key;
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end;
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procedure TFrmC64.FormKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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begin
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if LastKey <> #0 then
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C64.SetKey(LastKey, 0);
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LastKey := #0;
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end;
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procedure TFrmC64.OnScreenWrite(var Msg: TMessage);
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var
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Addr: Word;
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Value: Integer;
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X, Y: Integer;
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Flag: Cardinal;
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Q1: Byte;
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Sc: Char;
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begin
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Addr := Msg.WParam;
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Value := Msg.LParam;
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Y := (Addr div 40);
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X := (Addr - Y*40);
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Flag := (Value shr 7) and $FF;
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Q1 := Value and $7F;
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Sc := Char((Q1 + 32 * (ord(Q1 < 32) * 2 + ord(Q1 > 63) + ord(Q1 > 95))));
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Canvas.Font.Color := ColorTable[1 - Flag];
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Canvas.Brush.Color := ColorTable[Flag];
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Canvas.TextOut(X * (8*ScreenZoom), Y * (8*ScreenZoom), Sc);
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end;
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end.
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