Files
system76-edk2/ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsr.asm
AJFISH 2ef2b01e07 Adding support for BeagleBoard.
ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524
2009-12-06 01:57:05 +00:00

45 lines
1.1 KiB
NASM

//------------------------------------------------------------------------------
//
// Copyright (c) 2008-2009 Apple Inc. All rights reserved.
//
// All rights reserved. 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.
//
//------------------------------------------------------------------------------
EXPORT __aeabi_llsr
AREA Math, CODE, READONLY
;
;VOID
;EFIAPI
;__aeabi_llsr (
; IN VOID *Destination,
; IN VOID *Source,
; IN UINT32 Size
; );
;
__aeabi_llsr
SUBS r3,r2,#0x20
BPL {pc} + 0x18 ; 0x1c
RSB r3,r2,#0x20
LSR r0,r0,r2
ORR r0,r0,r1,LSL r3
LSR r1,r1,r2
BX lr
LSR r0,r1,r3
MOV r1,#0
BX lr
END