Changed SwitchStack() to _SwitchStack()

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ipf / InterlockedCompareExchange64.s

/// @file\r
///   Contains an implementation of InterlockedCompareExchange64 on Itanium-\r
///   based architecture.\r
///\r
/// Copyright (c) 2006, Intel Corporation\r
/// All rights reserved. This program and the accompanying materials\r
/// are licensed and made available under the terms and conditions of the BSD License\r
/// which accompanies this distribution.  The full text of the license may be found at\r
/// http://opensource.org/licenses/bsd-license.php\r
///\r
/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
///\r
/// Module Name:  InterlockedCompareExchange64.s\r
///\r
///\r
\r
.auto\r
.text\r
\r
.proc   InternalSyncCompareExchange64\r
.type   InternalSyncCompareExchange64, @function\r
InternalSyncCompareExchange64::\r
        mov                 ar.ccv = r33\r
        cmpxchg8.rel        r8  = [r64], r34\r
        mf\r
        br.ret.sptk.many    b0\r
.endp   InternalSyncCompareExchange64