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5.1 [BX]
![](https://img.haomeiwen.com/i5351166/2bdea7485a2026ae.png)
5.2 Loop 指令
![](https://img.haomeiwen.com/i5351166/f567718b044a0948.png)
5.3 段前缀
![](https://img.haomeiwen.com/i5351166/c41bab96c8118d9f.png)
5.4 实验 4
![](https://img.haomeiwen.com/i5351166/5118ed42afffbc7f.png)
- 答案:
(1)请参考第 2 题。
(2)如下所示:
assume cs:code
code segment
mov ax,20h
mov ds,ax
mov bx,0
mov cx,40h ;或mov cx,64
s: mov [bx],bl
inc bx
loop s
mov ax,4c00h
int 21h
code ends
end
(3)如下所示:
![](https://img.haomeiwen.com/i5351166/a473bd2d2347cdf3.png)
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