汇编实验13(2)

eol75999

1. assume cs:code
   
2. code segment
   
3. start:
   
4. mov ax,cs
   
5. mov ds,ax
   
6. mov si,offset s0
   
7. mov ax,0         
   
8. mov es,ax
   
9. mov di,200h
   
10. mov cx,offset s2 - offset s0
    
11. cld
    
12. rep movsb
    
13. mov word ptr es:[7ch*4],200h
    
14. mov word ptr es:[7ch*4+2],0
    
15. mov ax,4c00h
    
16. int 21h
    
17. s0:
    
18. push bp
    
19. dec cx
    
20. jcxz s1
    
21. mov bp,sp
    
22. add [bp+2],bx
    
23. s1:
    
24. pop bp
    
25. iret
    
26. s2:nop
    
27. 
    
28. code ends
    
29. end start

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