--- /dev/null
+/** @file\r
+ CopyMem() implementation.\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
+ which accompanies this distribution. The full text of the license may be found at\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
+ Module Name: CopyMemWrapper.c\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
+#include "CommonHeader.h"\r
+\r
+#include "MemLibInternals.h"\r
+\r
+/**\r
+ Copies a source buffer to a destination buffer, and returns the destination buffer.\r
+\r
+ This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns\r
+ DestinationBuffer. The implementation must be reentrant, and it must handle the case\r
+ where SourceBuffer overlaps DestinationBuffer.\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
+ @param DestinationBuffer Pointer to the destination buffer of the memory copy.\r
+ @param SourceBuffer Pointer to the source buffer of the memory copy.\r
+ @param Length Number of bytes to copy from SourceBuffer to DestinationBuffer.\r
+\r
+ @return DestinationBuffer.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+CopyMem (\r
+ OUT VOID *DestinationBuffer,\r
+ IN CONST VOID *SourceBuffer,\r
+ IN UINTN Length\r
+ )\r
+{\r
+ if (Length == 0) {\r
+ return DestinationBuffer;\r
+ }\r
+ ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));\r
+ ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));\r
+\r
+ if (DestinationBuffer == SourceBuffer) {\r
+ return DestinationBuffer;\r
+ }\r
+ return InternalMemCopyMem (DestinationBuffer, SourceBuffer, Length);\r
+}\r