In a laptop with 8086 inside, the port addresses of : keyboard is 1AH, mouse 2AH, touchpad 8301H, HDD (hard disc drive) OOFFH, screen F544H, USB 00E0H. The processor is executing : MOV DX,42 IN AL,DX...

In a laptop with 8086 inside, the port addresses of :<br>keyboard is<br>1AH, mouse 2AH, touchpad 8301H, HDD (hard disc drive)<br>OOFFH, screen F544H, USB 00E0H.<br>The processor is executing :<br>MOV DX,42<br>IN AL,DX<br>(a) Is there a problem in the IN instruction ?<br>(b) from which port it is reading data ?<br>

Extracted text: In a laptop with 8086 inside, the port addresses of : keyboard is 1AH, mouse 2AH, touchpad 8301H, HDD (hard disc drive) OOFFH, screen F544H, USB 00E0H. The processor is executing : MOV DX,42 IN AL,DX (a) Is there a problem in the IN instruction ? (b) from which port it is reading data ?

Jun 10, 2022

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In a laptop with 8086 inside, the port addresses of : keyboard is 1AH, mouse 2AH, touchpad 8301H, HDD (hard disc drive) OOFFH, screen F544H, USB 00E0H. The processor is executing : MOV DX,42 IN AL,DX...

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