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31 lines
613 B
ObjectPascal
31 lines
613 B
ObjectPascal
{ %OPT=-O3 }
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// Compiled with option -O3 for Win32-I386
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type
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PWordArray = ^TWordArray;
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TWordArray = array [0..1023]of Word;
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WordRec = packed record
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LoByte,HiByte:Byte
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end;
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var
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Buffer:TWordArray;
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OldMousePos:LongInt = 0;
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ScreenBuffer:Pointer = @Buffer;
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procedure Show(ScreenBuffer:Pointer);
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begin
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WordRec(PWordArray(ScreenBuffer)^[OldMousePos]).HiByte:=(not
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WordRec(PWordArray(ScreenBuffer)^[OldMousePos]).HiByte)and $7F
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// he forgets to write the result into the array
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end;
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begin
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Buffer[0]:=$0000;
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Show(ScreenBuffer);
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if Buffer[0]<>$7F00 then
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halt(1);
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writeln('ok');
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end.
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