.text
    .p2align 2
    .global arm64_call_with_dregs

arm64_call_with_dregs:
    stp x29, x30, [sp, #-32]!
    stp x19, x20, [sp, #16]
    mov x29, sp
    mov x19, x1

    ldr d8, [x0, #0]
    ldr d9, [x0, #8]
    ldr d10, [x0, #16]
    ldr d11, [x0, #24]
    ldr d12, [x0, #32]
    ldr d13, [x0, #40]
    ldr d14, [x0, #48]
    ldr d15, [x0, #56]

    mov x0, x3
    blr x2

    str d8, [x19, #0]
    str d9, [x19, #8]
    str d10, [x19, #16]
    str d11, [x19, #24]
    str d12, [x19, #32]
    str d13, [x19, #40]
    str d14, [x19, #48]
    str d15, [x19, #56]

    ldp x19, x20, [sp, #16]
    ldp x29, x30, [sp], #32
    ret