section .text
        global _main
        extern _puts

_main:
        push    rbp
        mov     rbp, rsp
        push    rbx
        mov     rbx, rsp
        and     spl, 0xF0
        mov     rdi, msg
        call    _puts
        mov     rsp, rbx
        pop     rbx
        mov     rsp, rbp
        pop     rbp
        ret

section .data
msg     db      "Hello, NASM World!", 0