hello world

nasm -f elf f.asm

ld -m elf_i386 -s -o f.out f.o

section.data
hello: db 'Hello world!', 10
helloLen: equ 13

section .text
global _start
_start:
mov eax, 4
mov ebx, 1
mov ecx, hello
mov edx, helloLen

int 80h

mov eax, 1
mov ebx, 0
int 80h