汇编实验14

eol75999

1. assume cs:code
   
2. code segment
   
3. a1:db 'yy/MM/dd hh:mm:ss',0
   
4. b1:db 9,8,7,4,2,0
   
5. 
   
6. start:
   
7. mov ax,cs
   
8. mov ds,ax
   
9. mov bx,offset a1
   
10. mov si,offset b1
    
11. mov cx,6
    
12. mov ax,0b800h
    
13. mov es,ax
    
14. mov di,160*12+31*2
    
15. 
    
16. s:   ;
    
17. push cx
    
18. mov al,[si]
    
19. out 70h,al
    
20. in  al,71h
    
21. mov ah,al
    
22. mov cl,4
    
23. shr ah,cl
    
24. and al,00001111b
    
25. add ah,30h
    
26. add al,30h
    
27. mov byte ptr [bx],ah
    
28. mov byte ptr [bx+1],al
    
29. add bx,3
    
30. add si,1
    
31. pop cx
    
32. loop s
    
33. 
    
34. 
    
35. 
    
36. mov bx,offset a1
    
37. zz:
    
38. mov ch,0
    
39. mov cl,[bx]
    
40. jcxz exit;cx=0跳出
    
41. mov byte ptr es:[di],cl
    
42. mov byte ptr es:[di+1],2;颜色
    
43. add di,2
    
44. inc bx
    
45. jmp zz
    
46. 
    
47. 
    
48. exit:
    
49. mov ax,4c00h
    
50. int 21h
    
51. 
    
52. 
    
53. code ends
    
54. end start
    
55. 
    

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