xref: /netbsd-src/sys/external/bsd/gnu-efi/dist/lib/arm/mullu.S (revision d1b935f8e85510a16a1b49122bd2ccf5ad7e104c)
1/*	$NetBSD: mullu.S,v 1.1.1.1 2018/08/16 18:17:47 jmcneill Exp $	*/
2
3#------------------------------------------------------------------------------
4#
5# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
6#
7# This program and the accompanying materials
8# are licensed and made available under the terms and conditions of the BSD License
9# which accompanies this distribution.  The full text of the license may be found at
10# http://opensource.org/licenses/bsd-license.php
11#
12# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14#
15#------------------------------------------------------------------------------
16
17#include "edk2asm.h"
18
19.text
20GCC_ASM_EXPORT(__aeabi_lmul)
21#
22#INT64
23#EFIAPI
24#__aeabi_lmul (
25#  IN INT64   Multiplicand
26#  IN INT64   Multiplier
27#  );
28#
29ASM_PFX(__aeabi_lmul):
30  stmdb   sp!, {lr}
31  mov     lr, r0
32  umull   r0, ip, r2, lr
33  mla     r1, r2, r1, ip
34  mla     r1, r3, lr, r1
35  ldmia   sp!, {pc}
36