This is the water and this is the well! The horse is the white of the eyes, drink full and descend!
section .text
global _start
_start:
mov edx,len
mov ecx,msg
mov ebx,1
mov eax,4
int 0x80
mov eax,1
int 0x80
section .data
msg db 'Hello, world!',0xa
len equ $ -msg