..。
;counter1 init
mov al, 01110100b
out 063h, al
;counter2 init
mov al, 10010100b
out 063h, al ..。
; ISR executed when count2 ends
ISR_COUNT12 PROC
cli
;procedure to be protected from the other ISR interrupts
sti
IRET
ISR_COUNT12 ENDP每次counter12(PIC-8253)完成计数后,我都需要重新执行ISR_COUNT12。当counter2变为0时,ISR_COUNT12会被调用。
发布于 2013-01-13 04:11:22
无法对软件中断进行屏蔽..
https://stackoverflow.com/questions/13661183
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