gistfile1.txt

global _start
_start:
	add edx, 1
	cmp byte [msg + edx], 0
	jne _start

	mov eax, 4 ; sys_write
	mov ebx, 1 ; to stdout
	mov ecx, msg
	; edx already contains number of bytes
	int 0x80

	mov eax, 1 ; sys_exit
	xor ebx, ebx ; with 0
	int 0x80
section .data
	msg:	db	"Hello, world!", 0xA, 0