Sync/efi/lib/arm/llsl.S
Curle 4300dc655c Add EFI documentation, libraries and includes.
The lib/inc folders are from the GNU-EFI project.
The documentation is from the uefi.org site.

Yes, I know there are duplicate includes. I have a plan for them.
2019-07-17 15:11:52 +01:00

42 lines
1.0 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2013, ARM. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------
#include "edk2asm.h"
.text
.align 2
GCC_ASM_EXPORT(__aeabi_llsl)
#
#VOID
#EFIAPI
#__aeabi_llsl (
# IN VOID *Destination,
# IN VOID *Source,
# IN UINT32 Size
# );
#
ASM_PFX(__aeabi_llsl):
subs r3,r2,#0x20
bpl 1f
rsb r3,r2,#0x20
lsl r1,r1,r2
orr r1,r1,r0,lsr r3
lsl r0,r0,r2
bx lr
1:
lsl r1,r0,r3
mov r0,#0
bx lr