CloverBootloader/ArmPkg/Library/CompilerIntrinsicsLib/Arm/mullu.S
Slice 84f41b2b58 prepare to arm
Signed-off-by: Slice <sergey.slice@gmail.com>
2023-07-04 19:53:11 +03:00

39 lines
828 B
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
.text
GCC_ASM_EXPORT(__ARM_ll_mullu)
GCC_ASM_EXPORT(__aeabi_lmul)
#
#INT64
#EFIAPI
#__aeabi_lmul (
# IN INT64 Multiplicand
# IN INT32 Multiplier
# );
#
ASM_PFX(__ARM_ll_mullu):
mov r3, #0
# Make upper part of INT64 Multiplier 0 and use __aeabi_lmul
#
#INT64
#EFIAPI
#__aeabi_lmul (
# IN INT64 Multiplicand
# IN INT64 Multiplier
# );
#
ASM_PFX(__aeabi_lmul):
stmdb sp!, {lr}
mov lr, r0
umull r0, ip, r2, lr
mla r1, r2, r1, ip
mla r1, r3, lr, r1
ldmia sp!, {pc}