Update copyright for files modified in this year

[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / InterlockedCompareExchange32.c

diff --git a/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange32.c b/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange32.c
index 4a9fe6aca66fe599697a48b93253db3634ea6b64..8efd994a6e2e0f4b72121357cf9d6f3dc9706356 100644 (file)
--- a/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange32.c
+++ b/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange32.c
@@ -1,7 +1,7 @@
 /** @file\r
   InterlockedCompareExchange32 function\r
 \r
-  Copyright (c) 2006 - 2007, 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
@@ -12,9 +12,10 @@
 \r
 **/\r
 \r
-//\r
-// Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics\r
-//\r
+/**\r
+  Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.\r
+**/\r
+\r
 long _InterlockedCompareExchange(\r
    long volatile * Destination,\r
    long Exchange,\r
@@ -23,6 +24,23 @@ long _InterlockedCompareExchange(
 \r
 #pragma intrinsic(_InterlockedCompareExchange)\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