Hello, world! (GNU Assembler & NASM)

main.asm

        section .text
        global _start
_start:
        mov rax, 1
        mov rdi, 1
        mov rsi, hello_world
        mov rdx, 14
        syscall

        mov rax, 60
        xor rdi, rdi
        syscall

        section .data
hello_world:
        db "Hello, world!", 10

main.S

        .text
        .globl _start
_start:
        mov $1, %rax
        mov $1, %rdi
        mov $hello_world, %rsi
        mov $13, %rdx
        syscall

        mov $60, %rax
        xor %rdi, %rdi
        syscall

        .data
hello_world:
        .ascii "Hello, world!\n"

run

#!/bin/sh

trap clean 0 1 2 3 6

clean() {
  rm -f main.o main
}

set -e

as -o main.o main.S
ld -o main main.o
./main

nasm -felf64 main.asm
ld -o main main.o
./main