MdePkg/BaseLib: Add bit field population calculating methods

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

diff --git a/MdePkg/Library/BaseLib/Ia32/CpuPause.c b/MdePkg/Library/BaseLib/Ia32/CpuPause.c
index e5206987d5d09307fe44becd8662a0814311d7c3..056dde4ebe6a1142b988ee7dfff25d44757d49e6 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/CpuPause.c
+++ b/MdePkg/Library/BaseLib/Ia32/CpuPause.c
@@ -1,19 +1,27 @@
 /** @file\r
   CpuPause function.\r
 \r
-  Copyright (c) 2006, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials\r
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+  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
-  http://opensource.org/licenses/bsd-license.php\r
+  http://opensource.org/licenses/bsd-license.php.\r
 \r
   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 \r
 **/\r
 \r
-#if _MSC_EXTENSIONS\r
 \r
+\r
+\r
+/**\r
+  Requests CPU to pause for a short period of time.\r
+\r
+  Requests CPU to pause for a short period of time. Typically used in MP\r
+  systems to prevent memory starvation while waiting for a spin lock.\r
+\r
+**/\r
 VOID\r
 EFIAPI\r
 CpuPause (\r
@@ -25,4 +33,3 @@ CpuPause (
   }\r
 }\r
 \r
-#endif\r