SECTION .data
msg     db     "Hello World!", 0Ah  ;

SECTION .text
global _start

_start:

        mov     edx, 13     ; number of bytes to write
        mov     ecx, msg    ; move memory address of 'msg' to ecx
        mov     ebx, 1      ; write to the file STDOUT
        mov     eax, 4      ; invoke SYS_WRITE (kernel opcode 4)
        int     80h

        mov     ebx, 0      ;
        mov     eax, 1      ;
        int     80h