Split out Synchronization Library from Base Library

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

diff --git a/MdePkg/Library/BaseLib/Ia32/InterlockedDecrement.c b/MdePkg/Library/BaseLib/Ia32/InterlockedDecrement.c
index afa9a15f60a9da7234371f206c3f205182d28d6c..d1f0868a838c0122c25517e7bc6064e3aa544e5b 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/InterlockedDecrement.c
+++ b/MdePkg/Library/BaseLib/Ia32/InterlockedDecrement.c
@@ -1,7 +1,7 @@
 /** @file\r
   InterlockedDecrement 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
@@ -12,11 +12,22 @@
 \r
 **/\r
 \r
-//\r
-// Include common header file for this module.\r
-//\r
-#include "CommonHeader.h"\r
 \r
+\r
+\r
+/**\r
+  Performs an atomic decrement of an 32-bit unsigned integer.\r
+\r
+  Performs an atomic decrement of the 32-bit unsigned integer specified by\r
+  Value and returns the decrement value. The decrement operation must be\r
+  performed using MP safe mechanisms. The state of the return value is not\r
+  guaranteed to be MP safe.\r
+\r
+  @param  Value A pointer to the 32-bit value to decrement.\r
+\r
+  @return The decrement value.\r
+\r
+**/\r
 UINT32\r
 EFIAPI\r
 InternalSyncDecrement (\r