《汇编语言》问题7.6:
org 0100h
start@:
mov ax,cs
mov ds,ax
mov bx,data@
mov cx,6
s: mov al,[bx+3]
and al,11011111b
mov [bx+3],al
add bx,16
loop s
mov ax,4c00h
int 21h
end@:
data@:
db '1. file '
db '2. edit '
db '3. search '
db '4. view '
db '5. options '
db '6. help '
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