1 files changed, 69 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c b/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c
new file mode 100644
index 0000000..6028b19
--- /dev/null
+++ b/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c
@@ -0,0 +1,69 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. 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.             
+
+Module Name:
+
+  EfiCopyMem.c
+
+Abstract:
+
+  Implementation of the EfiCopyMem routine. This function is broken
+  out into its own source file so that it can be excluded from a
+  build for a particular platform easily if an optimized version 
+  is desired.
+
+--*/
+
+#include "Tiano.h"
+
+VOID
+EfiCommonLibCopyMem (
+  IN VOID   *Destination,
+  IN VOID   *Source,
+  IN UINTN  Length
+  )
+/*++
+
+Routine Description:
+
+  Copy Length bytes from Source to Destination.
+
+Arguments:
+
+  Destination - Target of copy
+
+  Source      - Place to copy from
+
+  Length      - Number of bytes to copy
+
+Returns:
+
+  None
+
+--*/
+{
+  CHAR8 *Destination8;
+  CHAR8 *Source8;
+
+  if (Source < Destination) {
+    Destination8  = (CHAR8 *) Destination + Length - 1;
+    Source8       = (CHAR8 *) Source + Length - 1;
+    while (Length--) {
+      *(Destination8--) = *(Source8--);
+    }
+  } else {
+    Destination8  = (CHAR8 *) Destination;
+    Source8       = (CHAR8 *) Source;
+    while (Length--) {
+      *(Destination8++) = *(Source8++);
+    }
+  }
+}