global _start

    section .text

_start:
    mov     rdi, 1              ;  stdout fd
    mov     rdx, 9              ;  8 chars + newline
    mov     rsi, msg
    mov     rax, 1              ;  write syscall
    syscall

    xor     rdi, rdi            ; return code 0
    mov     rax, 60             ; exit syscall
    syscall

    section .data

msg:
    db      "hi there", 10