1. Port X64, IPF and EBC arch for BaseLib

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

diff --git a/MdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange64.s b/MdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange64.s
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+/// @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  = [r32], r34\r
+        mf\r
+        br.ret.sptk.many    b0\r
+.endp   InternalSyncCompareExchange64
\ No newline at end of file