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const
KBC_KEY_CMD = $64;
KBC_KEY_DATA = $60;
procedure KBCWait4IBE; //等待键盘缓冲区为空
var
dwVal:DWord;
begin
repeat
GetPortVal($64,@dwVal,1);
until (dwVal and $2)=0;
end;
//键盘==========================================
procedure MyKeyDown(vKeyCoad:Integer);
var
btScancode:DWord;
begin
btScancode:=MapVirtualKey(vKeyCoad, 0);
KBCWait4IBE;
SetPortVal($64, $D2, 1);
KBCWait4IBE;
SetPortVal($60, btScancode, 1);
end;
procedure MyKeyUp(vKeyCoad:Integer);
var
btScancode:DWord;
begin
btScancode:=MapVirtualKey(vKeyCoad, 0);
KBCWait4IBE;
SetPortVal($64, $D2, 1);
KBCWait4IBE;
SetPortVal($64, (btScancode or $80), 1);
end;