MdePkg/BaseLib: Support IA32 processors without CMOVx

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

diff --git a/MdePkg/Library/BaseLib/Ia32/ReadGs.c b/MdePkg/Library/BaseLib/Ia32/ReadGs.c
index 47da6e716a658e4cd4a079e1fa714d7ba39be010..1113baf80b6713fc747fee832d05dc8b7d6e0031 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/ReadGs.c
+++ b/MdePkg/Library/BaseLib/Ia32/ReadGs.c
@@ -1,19 +1,29 @@
 /** @file\r
   AsmReadGs 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
+  Reads the current value of GS Data Segment Register (GS).\r
+\r
+  Reads and returns the current value of GS. This function is only available on\r
+  IA-32 and x64.\r
+\r
+  @return The current value of GS.\r
+\r
+**/\r
 UINT16\r
 EFIAPI\r
 AsmReadGs (\r
@@ -26,4 +36,3 @@ AsmReadGs (
   }\r
 }\r
 \r
-#endif\r