Hello world! (by x86-64)

hello.S

	.global main

main:
	mov	$1, %rax
	mov	$1, %rdi
	mov	$str, %rsi
	mov	$13, %rdx
	syscall

	mov	$60, %rax
	mov	$0, %rdi 
	syscall

	.section .rodata
str:
	.string "Hello World!\n"

Makefile

NAME    = hello.bin
CC      = gcc
SRCS    = hello.S
OBJS    = $(SRCS:.S=.o)

$(NAME) : $(OBJS)
	$(LD) -e main -o $(NAME) $(OBJS)

clean   :
	$(RM) $(OBJS)

How to use

1. make
2. ./hello.bin