audk/OldMdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange64.s

28 lines
998 B
ArmAsm

/// @file
/// Contains an implementation of InterlockedCompareExchange64 on Itanium-
/// based architecture.
///
/// Copyright (c) 2006, Intel Corporation
/// 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.
///
/// Module Name: InterlockedCompareExchange64.s
///
///
.auto
.text
.proc InternalSyncCompareExchange64
.type InternalSyncCompareExchange64, @function
InternalSyncCompareExchange64::
mov ar.ccv = r33
cmpxchg8.rel r8 = [r32], r34
mf
br.ret.sptk.many b0
.endp InternalSyncCompareExchange64