.text
    .globl main
    .p2align 2
main:
    stp x29, x30, [sp, #-16]!
    mov x29, sp
    mov w8, #10
    stur w8, [x29, #0]
    ldur w8, [x29, #0]
    stur w8, [x29, #1]
    ldur w8, [x29, #1]
    mov w9, #2
    lsl w8, w8, #1
    stur w8, [x29, #2]
    ldur w8, [x29, #2]
    mov w9, #1
    add w8, w8, w9
    stur w8, [x29, #3]
    ldur w0, [x29, #3]
    ret
    ldp x29, x30, [sp], #16