"Hello, World" in x86 Assembly Language:

        .global _start
        .text
_start:
        mov     $1, %rax                
        mov     $1, %rdi                
        mov     $message, %rsi          
        mov     $13, %rdx               
        syscall                         

        mov     $60, %rax               
        xor     %rdi, %rdi              
        syscall                         
message:
        .ascii  "Hello, world\n"