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2009 - שאלה 7

By: a guest on May 7th, 2012  |  syntax: ASM (NASM)  |  size: 0.89 KB  |  hits: 11  |  expires: Never
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  1. ; multi-segment executable file template.
  2.  
  3. data segment
  4.     ; add your data here!
  5.     pkey db "press any key...$"
  6.     arr1 DB 36dup (?)
  7.     arr2 DB 36dup (?)
  8. ends
  9.  
  10. stack segment
  11.     dw   128  dup(0)
  12. ends
  13.  
  14. code segment
  15. start:
  16. ; set segment registers:
  17.     mov ax, data
  18.     mov ds, ax
  19.     mov es, ax
  20.  
  21. mov si,0
  22. mov bx,0
  23. mov cx,36
  24.  
  25. first:
  26. mov ax,arr1[bx]
  27. jmp before check:  
  28. a1:
  29.   mov arr2[si],ax
  30.   inc si
  31.   inc bx
  32.  
  33.   loop first
  34.   jmp finish
  35.  
  36. before check:  
  37. check:
  38. mov di,0
  39. mov dx,arr2[di]
  40. cmp ax,dx
  41. jz a2
  42. inc di
  43. cmp di,36
  44. jz a1
  45. jmp check
  46.  
  47. a2:
  48. inc bx
  49. jmp first
  50.  
  51. finish: nop
  52.            
  53.     lea dx, pkey
  54.     mov ah, 9
  55.     int 21h        ; output string at ds:dx
  56.    
  57.     ; wait for any key....    
  58.     mov ah, 1
  59.     int 21h
  60.    
  61.     mov ax, 4c00h ; exit to operating system.
  62.     int 21h    
  63. ends
  64.  
  65. end start ; set entry point and stop the assembler.
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