the IN instruction

Andrew Yung (ayung@physics.ubc.ca) Sun, 20 Feb 2000 16:21:28 -0800 

From: "Andrew Yung" <ayung@physics.ubc.ca>
Subject: the IN instruction
Date: Sun, 20 Feb 2000 16:21:28 -0800



I have the following piece of code:

MOV	DX,224H
IN	AL,DX

Will the IN instruction try to load al with the _word_ in DX or the _byte_?

Could I just replace this code with:

MOV	BX,224H
MOV	AL,[BX]

to achieve the same result, or is there something special about the IN
instruction?

Thanks!