MdePkg/BaseLib: Support IA32 processors without CLFLUSH

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

diff --git a/MdePkg/Library/BaseLib/Ia32/ReadDs.c b/MdePkg/Library/BaseLib/Ia32/ReadDs.c
index c757928372061838fac1198e9277addf64f2db64..3b098c3c6647c1e8b734aabe84eb556f1921d57f 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/ReadDs.c
+++ b/MdePkg/Library/BaseLib/Ia32/ReadDs.c
@@ -1,19 +1,29 @@
 /** @file\r
   AsmReadDs 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 Data Segment Register (DS).\r
+\r
+  Reads and returns the current value of DS. This function is only available on\r
+  IA-32 and x64.\r
+\r
+  @return The current value of DS.\r
+\r
+**/\r
 UINT16\r
 EFIAPI\r
 AsmReadDs (\r
@@ -26,4 +36,3 @@ AsmReadDs (
   }\r
 }\r
 \r
-#endif\r