Interrupt

section .data
       mro: db"HELLO World"
        mro_e: equ  $-mro

section .text
         global _start:
_start:
       mov eax,4
       mov ebx,1
       mov ecx,mro
       mov edx,mro_e
       int 80h
       mov eax, 1
       movebx,0
       int 80h