设置除法中断

assume cs:code
code segment
begin:
mov ax,cs
mov ds,ax
mov si,offset error

mov ax,20H
mov es,ax
mov di,0

mov cx,offset enderror-offset error
rep movsb

mov ax,0
mov es,ax
mov word ptr es:[0*4],200H
mov word ptr es:[0*4+2],0
mov ax,4c00H
int 21H
   error:
jmp short st1
db 'divide error!'
   st1:
mov ax,0
mov ds,ax
mov si,202H
mov ax,0b800H
mov es,ax
mov di,10*0A0H+2*40
mov ah,0
mov cx,13
s: mov al,ds:[si]
mov es:[di],al
inc si
add di,2
loop s  
mov ax,4c00H
int 21H
   enderror: nop
code ends
end begin