1 files changed, 29 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange32.s b/MdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange32.s
new file mode 100644
index 0000000000..3a278d7268
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ipf/InterlockedCompareExchange32.s
@@ -0,0 +1,29 @@
+/// @file
+///   Contains an implementation of InterlockedCompareExchange32 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:  InterlockedCompareExchange32.s
+///
+///
+
+.auto
+.text
+
+.proc   InternalSyncCompareExchange32
+.type   InternalSyncCompareExchange32, @function
+InternalSyncCompareExchange32::
+        zxt4                r33 = r33
+        mov                 ar.ccv = r33
+        cmpxchg4.rel        r8  = [r32], r34
+        mf
+        br.ret.sptk.many    b0
+.endp   InternalSyncCompareExchange32
+\ No newline at end of file