.text

.global _start

_start:
  xorl %eax,%eax
  movl %eax,%ebx
  addb $4,%al
  incb %bl
  movl $msg,%ecx
  movl $len,%edx
  int $0x80

  xorl %eax,%eax
  movl %eax,%ebx
  incb %al
  int $0x80
msg:
  .ascii "hello, world!\n"
  len = . - msg