ax,data
mov ds,ax
mov bx,0
mov cx,4
s:mov al,ds:[bx]
and al,11011111b
mov ds:[bx],al
inc bx
loop s
mov...ax,data
mov ds,ax
mov bx,0
mov cx,4
s:mov al,ds:[bx]
and al,11011111b
mov ds:[bx],al
mov al,ds:[5+bx...4c00h
int 21h
code ends
end start
代码如下
方法1
mov ax,data
mov ds,ax
mov bx,0
mov cx,4
s:mov dx,cx
mov si...ax,data
mov ds,ax
mov bx,0
mov cx,4
s:mov ds:[30h],cx
mov si,0
mov cx,3
s0:
mov al,[bx+si]
and al,11011111b...segment
dw 0,0,0,0,0,0,0,0
stack ends
mov ax,stack
mov ss,stack
mov sp,30
mov ax,data
mov ds,ax
mov
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