global _start
.align 4


.data
    msg .ascii "hello, world!\n"
    len . - msg

; stdin  0
; stdout 1
; stderr 2

.text
_start:
    mov x0, #1      ; stdout
    ldr x1, =msg
    ldr x2, =len
    mov w8, #64     ; syscall 64 (write)
    svc #0

    mov x0, #0      : status 0 (OK)
    mov w8, #93     syscall 93 (exit)
    svc #0