检测点14.1这样做对吗?
(1)assume cs:codecode segment
start:
mov al,2
out 70h,al ;单步调试时,一执行这一步为何直接跳到 int 21h,看不到从2号单元所读取的数据?
in al,71h
mov ax,4c00h
int 21h
code ends
end start
(2)assume cs:code
code segment
start:
mov al,2
out 70h,al
mov al,0
out 71h,al
mov ax,4c00h
int 21h
code ends
end start
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