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  1. global _start
  2.  
  3. section .data
  4. 	buffer	dw	0h
  5.  
  6. section .text
  7.  
  8. _start:
  9. 	mov		ecx, buffer
  10. 	mov		edx, 02h
  11. 	call		read
  12. 	mov		cx, word [buffer]
  13. 	cmp		cx, 3234h
  14. 	je		exit
  15. 	cmp		ch, 0ah
  16. 	je		one_dig
  17. 	jmp		two_dig
  18.  
  19. one_dig:
  20. 	mov		ecx, buffer
  21. 	mov		edx, 02h
  22. 	call		write
  23. 	jmp		_start
  24.  
  25. two_dig:
  26. 	mov		ecx, buffer
  27. 	mov		edx, 02h
  28. 	call		write
  29. 	mov		edx, 01h
  30. 	mov		ecx, buffer
  31. 	call		read			; read the 0ah
  32. 	mov		ecx, buffer
  33. 	call		write			; write the 0ah
  34. 	jmp		_start
  35.  
  36. exit:
  37. 	mov		eax, 01h		; exit()
  38. 	xor		ebx, ebx		; errno
  39. 	int		80h
  40.  
  41.  
  42. read:
  43. 	mov		eax, 03h		; read()
  44. 	mov		ebx, 00h		; stdin
  45. 	int		80h
  46. 	ret
  47. write:
  48. 	mov		eax, 04h		; write()
  49. 	mov		ebx, 01h		; stdout
  50. 	int		80h
  51. 	ret
Success #stdin #stdout 0s 5276KB
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https://ideone.com/UbdlZX
language:
Assembler 32bit (nasm 2.14)
created:
4 days ago
visibility:
public

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