Update copyright for files modified in this year

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / InterlockedCompareExchange32.c

diff --git a/MdePkg/Library/BaseLib/Ia32/InterlockedCompareExchange32.c b/MdePkg/Library/BaseLib/Ia32/InterlockedCompareExchange32.c
index 244089617ef311ef17949da427510415129dd8c0..abcb1ecc83b7ca12bd30e3fc4246324225c2202a 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/InterlockedCompareExchange32.c
+++ b/MdePkg/Library/BaseLib/Ia32/InterlockedCompareExchange32.c
@@ -1,7 +1,7 @@
 /** @file\r
   InterlockedCompareExchange32 function\r
 \r
-  Copyright (c) 2006, Intel Corporation<BR>\r
+  Copyright (c) 2006 - 2008, Intel Corporation<BR>\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
@@ -12,8 +12,26 @@
 \r
 **/\r
 \r
-#if _MSC_EXTENSIONS\r
 \r
+\r
+\r
+/**\r
+  Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r
+\r
+  Performs an atomic compare exchange operation on the 32-bit unsigned integer\r
+  specified by Value.  If Value is equal to CompareValue, then Value is set to\r
+  ExchangeValue and CompareValue is returned.  If Value is not equal to CompareValue,\r
+  then Value is returned.  The compare exchange operation must be performed using\r
+  MP safe mechanisms.\r
+\r
+  @param  Value         A pointer to the 32-bit value for the compare exchange\r
+                        operation.\r
+  @param  CompareValue  32-bit value used in compare operation.\r
+  @param  ExchangeValue 32-bit value used in exchange operation.\r
+\r
+  @return The original *Value before exchange.\r
+\r
+**/\r
 UINT32\r
 EFIAPI\r
 InternalSyncCompareExchange32 (\r
@@ -30,4 +48,3 @@ InternalSyncCompareExchange32 (
   }\r
 }\r
 \r
-#endif\r