.text
    .globl main
    .p2align 2
main:
    stp x29, x30, [sp, #-16]!
    mov x29, sp
    mov w8, #0
    mov w9, #0
    lsl w9, w9, #2
    add w8, w8, w9
    stur w8, [x29, #0]
    mov w0, #0
    ret
    ldp x29, x30, [sp], #16