IEI Technology TANK-801, Руководство пользователя

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TANK-801 Em b e d d e d S ys te m
P a g e 84
B.2 As s e m b ly La n g u a g e S a m p le 1
MOV AX, 6F08H ;setting the digital port as input
INT 15H ;
AL low byte = value
AH – 6FH
AL – 9 :Set the digital port as OUTPUT
Sub-function:
BL :Digital I/O input value
B.3 As s e m b ly La n g u a g e S a m p le 2
MOV AX, 6F09H ;setting the digital port as output
MOV BL, 09H ;digital value is 09H
INT 15H ;
Digital Output is 1001b