王爽汇编语言第二版学习笔记之实验12

assume cs:code
code segment
start:
mov ax,cs
mov ds,ax
mov si,offset do0

mov ax,0
mov es,ax
mov di,200h

mov cx,offset do0end-offset do0
cld
rep movsb

mov ax,0
mov ds,ax
mov word ptr ds:[0],200H
mov word ptr ds:[2],0H

mov ax,4c00h
int 21h

do0:
jmp short do1
db "divide error"
do1:
mov ax,cs
mov ds,ax
mov si,202H

mov ax,0b800H
mov es,ax
mov di,12*160+16*2

mov cx,13
s:    mov al,[si]
mov es:[di],al
mov byte ptr es:[di+1],02H
inc si
add di,2
loop s

mov ax,4c00h
int 21h

do0end:
nop

code ends
end start