section .data       ; section declaration

msg     db      "Hello, world!"   ; the string

section .text       ; section declaration

global _start       ; Default entry point for ELF linking

_start:

; write() call

  mov eax, 4        ; put 4 into eax, since write is syscall #4
  mov ebx, 1        ; put stdout into ebx, since the proper fd is 1
  mov ecx, msg      ; put the address of the string into ecx
  mov edx, 13       ; put 13 into edx, since our string is 13 bytes
  int 0x80          ; Call the kernel to make the system call happen


; exit() call

  mov eax,1         ; put 1 into eax, since exit is syscall #1
  mov ebx,0         ; put 0 into ebx
  int 0x80          ; Call the kernel to make the system call happen