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楼主 |
发表于 2013-8-29 23:00:21
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先写入中断程序
assume cs:code
code segment
start:
mov ax,cs
mov ds,ax
mov si,offset s
mov ax,0
mov es,ax
mov di,200h
mov cx, offset send-offset s
cld
rep movsb
mov ax,0
mov es,ax
mov word ptr es:[7ch*4],200h
mov word ptr es:[7ch*4+2],0
mov ax,4c00h
int 21h
s: push bp
mov bp,sp
dec cx
jcxz t
add ss:[bp+2],bx
t: pop bp
iret
send:nop
code ends
end start
然后调用:
assume cs:code
code segment
start:
mov ax,0b800h
mov es,ax
mov di,160*12
mov bx,offset s-offset send
mov cx,80
s: mov byte ptr es:[di],'!'
add di,2
int 7ch
send:
nop
mov ax,4c00h
int 21h
code ends
end start
只输入一个,结果报divide error |
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