小甲鱼老师,关于实验12,求教一个问题
本帖最后由 zengsnail 于 2011-9-23 23:37 编辑assume cs:codesg
codesg segment
start:mov ax,cs
mov ds,ax
mov si,offset d0
mov ax,0
mov es,ax
mov di,200h
mov cx,offset d0end-offset d0
cld
rep movsb
mov ax,0
mov es,ax
mov word ptr es:,200h
mov word ptr es:,0
mov ax,4c00h
int 21h
d0: jmp short d0start
db "divide error!"
d0start:mov ax,0 ;问题就是在这里,我如果改成mov ax, CS,运行后,在屏幕中间显示的是几个看不懂的乱码,
而写成movax,0(因为字符串地址就是0000:0202,对吧?)才能正常显示 divide error!
mov ds,ax
mov si,202
mov ax,0b800h
mov es,ax
mov di,12*160+34*2
mov cx,13
s: mov al,
mov es:,al
inc si
add di,2
loop s
mov ax,4c00h
int 21h
d0end:nop
codesg ends
end start
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