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Microsoft (R) Macro Assembler Version 5.00 1/1/80 04:05:14
. 8.4 頠 Page 1-1
 
PAGE ,132
TITLE . 8.4
 
0000 CODE SEGMENT
ASSUME CS:CODE
 
0000 KEYBOARD_INTERRUPT PROC FAR
 
0000 50 PUSH AX ; AX
0001 E4 60 IN AL, 60H ;
0003 50 PUSH AX ;
0004 E4 61 IN AL, 61H
0006 8A E0 MOV AH, AL ; AL
0008 0C 80 OR AL, 80H
000A E6 61 OUT 61H, AL ;
000C 8A C4 MOV AL, AH
000E E6 61 OUT 61H, AL ;
0010 58 POP AX