Hello world!

.data

msg:
    .string "Hello World\\n"

len:
    .long . - msg

.text
.globl _start

_start:
    push $len        
    push $msg       
    push $1          
    movl $0x4, %eax 
    call _syscall
    addl $12, %esp   

    push $0
    movl $0x1, %eax  
    call _syscall

_syscall:
    int  $0x80
    ret

Un saluto in tutte le lingue del mondo