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| author | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-01-30 00:45:13 +0000 |
|---|---|---|
| committer | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-01-30 00:45:13 +0000 |
| commit | 720d3c5fb31b6b2df535f7a281d5d9d297c5eede (patch) | |
| tree | 7f9e1cd0d0a83ae3d5583b186b152ab469f48376 /MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm | |
| parent | 914826ba1dc3f03b2a3a88842ba7e41923231258 (diff) | |
| download | edk2-platforms-720d3c5fb31b6b2df535f7a281d5d9d297c5eede.tar.xz | |
Split out Synchronization Library from Base Library
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7377 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm')
| -rw-r--r-- | MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm b/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm new file mode 100644 index 0000000000..47d959fa6a --- /dev/null +++ b/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedCompareExchange32.asm @@ -0,0 +1,45 @@ +;------------------------------------------------------------------------------
+;
+; 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.Asm
+;
+; Abstract:
+;
+; InterlockedCompareExchange32 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ .486
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncCompareExchange32 (
+; IN UINT32 *Value,
+; IN UINT32 CompareValue,
+; IN UINT32 ExchangeValue
+; );
+;------------------------------------------------------------------------------
+InternalSyncCompareExchange32 PROC
+ mov ecx, [esp + 4]
+ mov eax, [esp + 8]
+ mov edx, [esp + 12]
+ lock cmpxchg [ecx], edx
+ ret
+InternalSyncCompareExchange32 ENDP
+
+ END
|