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

41 lines
1.1 KiB
NASM

//------------------------------------------------------------------------------
//
// Copyright (c) 2008 - 2009, Apple Inc. 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 AsmMacroExport.inc
;
;UINT32
;EFIAPI
;__aeabi_lasr (
; IN UINT32 Dividen
; IN UINT32 Divisor
; );
;
RVCT_ASM_EXPORT __aeabi_lasr
SUBS r3,r2,#0x20
BPL {pc} + 0x18 ; 0x1c
RSB r3,r2,#0x20
LSR r0,r0,r2
ORR r0,r0,r1,LSL r3
ASR r1,r1,r2
BX lr
ASR r0,r1,r3
ASR r1,r1,#31
BX lr
END