Use ".486" for the instruction of "wbinvd"

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibSse2 / CompareMemWrapper.c

diff --git a/MdePkg/Library/BaseMemoryLibSse2/CompareMemWrapper.c b/MdePkg/Library/BaseMemoryLibSse2/CompareMemWrapper.c
index 031b7fcec6456ad767d735d05b4ab9f71a632611..287b84c0dc23de49697cb9dccf648c3a53df9a6e 100644 (file)
--- a/MdePkg/Library/BaseMemoryLibSse2/CompareMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibSse2/CompareMemWrapper.c
@@ -1,6 +1,16 @@
 /** @file\r
   CompareMem() implementation.\r
 \r
+  The following BaseMemoryLib instances contain the same copy of this file:\r
+    BaseMemoryLib\r
+    BaseMemoryLibMmx\r
+    BaseMemoryLibSse2\r
+    BaseMemoryLibRepStr\r
+    BaseMemoryLibOptDxe\r
+    BaseMemoryLibOptPei\r
+    PeiMemoryLib\r
+    DxeMemoryLib\r
+\r
   Copyright (c) 2006, 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
@@ -10,20 +20,9 @@
   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
-  The following BaseMemoryLib instances share the same version of this file:\r
-\r
-    BaseMemoryLib\r
-    BaseMemoryLibMmx\r
-    BaseMemoryLibSse2\r
-    BaseMemoryLibRepStr\r
-    PeiMemoryLib\r
-    DxeMemoryLib\r
-\r
 **/\r
 \r
-//\r
-// Include common header file for this module.\r
-//\r
+\r
 \r
 \r
 #include "MemLibInternals.h"\r
@@ -35,8 +34,8 @@
   If all Length bytes of the two buffers are identical, then 0 is returned.  Otherwise, the\r
   value returned is the first mismatched byte in SourceBuffer subtracted from the first\r
   mismatched byte in DestinationBuffer.\r
-  If Length > 0 and DestinationBuffer is NULL and Length > 0, then ASSERT().\r
-  If Length > 0 and SourceBuffer is NULL and Length > 0, then ASSERT().\r
+  If Length > 0 and DestinationBuffer is NULL, then ASSERT().\r
+  If Length > 0 and SourceBuffer is NULL, then ASSERT().\r
   If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT(). \r
   If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT(). \r
 \r
@@ -58,7 +57,7 @@ CompareMem (
   IN UINTN       Length\r
   )\r
 {\r
-  if (0 == Length) {\r
+  if (Length == 0 || DestinationBuffer == SourceBuffer) {\r
     return 0;\r
   }\r
   ASSERT (DestinationBuffer != NULL);\r