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  1. section .bss
  2.  msg resb 1 ; reserva 1 byte para um caractere
  3.  
  4. section .data
  5.  traco db '-'
  6.  contador dd 1
  7.  
  8. section .text
  9.  global _start
  10.  
  11. _start:
  12. ; Lê 1 caractere do teclado
  13.  mov eax, 3 ; sys_read
  14.  mov ebx, 0 ; stdin
  15.  mov ecx, msg ; onde armazenar
  16.  mov edx, 1 ; quantos bytes
  17.  int 0x80 ; chamada de sistema
  18.  mov eax, 4 ; sys_write
  19.  mov ebx, 1 ; stdout
  20.  mov ecx, msg ; endereço da string
  21.  mov edx, 1 ; tamanho da string (8 chars + newline)
  22.  
  23.  int 0x80 ; chamada de sistema
  24.  mov eax, 4 ; sys_write
  25.  mov ebx, 1 ; stdout
  26.  mov ecx, msg+1 ; endereço da string
  27.  mov edx, 1
  28.  int 0x80 ; chamada de s…
  29.  
  30.  exit:
  31.  mov eax, 1 ; sys_exit
  32.  mov ebx, 0
  33.  int 0x80
Success #stdin #stdout 0s 5312KB
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https://ideone.com/nwhOFj
language:
Assembler 32bit (nasm 2.14)
created:
7 days ago
visibility:
public

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