Hello World assembly language

[Colin Barnabas]

I found a hello world program written in assembly language which
runs on my amd64 8.2 stable box. However, I can not seem to get
it to print a new line. Any suggestions on how to print a line
feed in assembly?

Here is the code-

section .data

message:
db      'hello, world!', 0x0a

section .text

global _start
_start:
mov     rax, 4
mov     rdi, 1
mov     rsi, message
mov     rdx, 13
syscall

mov     rax, 1
xor     rdi, rdi
syscall