audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/lasr.S

31 lines
650 B
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
#
#UINT64
#EFIAPI
#__aeabi_lasr (
# IN UINT64 Value
# IN UINT32 Shift
# );
#
ASM_FUNC(__aeabi_lasr)
subs r3,r2,#0x20
bpl L_Test
rsb r3,r2,#0x20
lsr r0,r0,r2
orr r0,r0,r1,LSL r3
asr r1,r1,r2
bx lr
L_Test:
asr r0,r1,r3
asr r1,r1,#31
bx lr