From 1760cf81e4b1847c6823ea3514a78dd120e19b6e Mon Sep 17 00:00:00 2001
From: Guo Mang <mang.guo@intel.com>
Date: Thu, 22 Dec 2016 15:57:14 +0800
Subject: MdePkg: Move to new location

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
---
 .../Library/PeiMemoryLib/CompareMemWrapper.c       | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Core/MdePkg/Library/PeiMemoryLib/CompareMemWrapper.c

(limited to 'Core/MdePkg/Library/PeiMemoryLib/CompareMemWrapper.c')

diff --git a/Core/MdePkg/Library/PeiMemoryLib/CompareMemWrapper.c b/Core/MdePkg/Library/PeiMemoryLib/CompareMemWrapper.c
new file mode 100644
index 0000000000..f525c17bae
--- /dev/null
+++ b/Core/MdePkg/Library/PeiMemoryLib/CompareMemWrapper.c
@@ -0,0 +1,66 @@
+/** @file
+  CompareMem() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Compares the contents of two buffers.
+
+  This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.
+  If all Length bytes of the two buffers are identical, then 0 is returned.  Otherwise, the
+  value returned is the first mismatched byte in SourceBuffer subtracted from the first
+  mismatched byte in DestinationBuffer.
+  
+  If Length > 0 and DestinationBuffer is NULL, then ASSERT().
+  If Length > 0 and SourceBuffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().
+  If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().
+
+  @param  DestinationBuffer The pointer to the destination buffer to compare.
+  @param  SourceBuffer      The pointer to the source buffer to compare.
+  @param  Length            The number of bytes to compare.
+
+  @return 0                 All Length bytes of the two buffers are identical.
+  @retval Non-zero          The first mismatched byte in SourceBuffer subtracted from the first
+                            mismatched byte in DestinationBuffer.
+                            
+**/
+INTN
+EFIAPI
+CompareMem (
+  IN CONST VOID  *DestinationBuffer,
+  IN CONST VOID  *SourceBuffer,
+  IN UINTN       Length
+  )
+{
+  if (Length == 0 || DestinationBuffer == SourceBuffer) {
+    return 0;
+  }
+  ASSERT (DestinationBuffer != NULL);
+  ASSERT (SourceBuffer != NULL);
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
+
+  return InternalMemCompareMem (DestinationBuffer, SourceBuffer, Length);
+}
-- 
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