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- Uses Crt,Gif,ModeXLib;
- Var y, {Current value of Linear Starting Address}
- y_dir:word; {Gives scroll direction}
- Begin
- Init_ModeX; {Enable Mode X}
- LoadGif('upfold'); {Load first image into Pages 0 and 2}
- p13_2_ModeX(0,16000);
- p13_2_ModeX(32000,16000);
- LoadGif('corner'); {Load second image into Pages 1 and 3}
- p13_2_ModeX(16000,16000);
- p13_2_ModeX(48000,16000);
- y:=80; {Begin with Line 1}
- y_dir:=80; {Direction of motion +80 bytes per pass}
- Repeat
- Inc(y,y_dir); {Motion}
- WaitRetrace; {Wait for retrace}
- SetStart(y); {and write new start to register}
- if (y >= 600*80) {Border reached -> reverse direction}
- or (y <= 80) Then y_dir:=-y_dir;
- Until KeyPressed; {Run until key is pressed}
- End.