Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

procedure Out32(portadresse: Word; wert: Byte);
 var
   val: Byte;
 begin
   val := Byte(wert);
   asm
     push dx
     mov dx,portadresse
     mov al,val
     out dx,al
     pop dx
   end;
 end;

 function Inp32(portadresse: Word): Byte;
 var
   val: Byte;
 begin
   asm
     push dx
     mov dx,portadresse
     in al,dx
     mov val,al
     pop dx
   end;
   Inp32 := Byte(val) and $00ff;
 end;


 // Example/Beispiel: 

  Out32($378, 0)  {= Dataport all 8 Bit Low}
   Out32($378, (Inp32($378) or 1); {Dataport Bit 1 High}
   Out32($378, (Inp32($378) and 254);  {Datap. Bit 1, Low}