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diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/Print.c b/MdeModulePkg/Universal/DisplayEngineDxe/Print.c
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+/** @file
+Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very
+simple implemenation of SPrint() and Print() to support debug.
+
+You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a
+time. This makes the implementation very simple.
+
+VSPrint, Print, SPrint format specification has the follwoing form
+
+%type
+
+type:
+ 'S','s' - argument is an Unicode string
+ 'c' - argument is an ascii character
+ '%' - Print a %
+
+
+Copyright (c) 2004 - 2012, 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 "FormDisplay.h"
+
+
+/**
+ Set Buffer to Value for Size bytes.
+
+ @param Buffer Memory to set.
+ @param Size Number of bytes to set
+ @param Value Value of the set operation.
+
+**/
+VOID
+SetUnicodeMem (
+ IN VOID *Buffer,
+ IN UINTN Size,
+ IN CHAR16 Value
+ )
+{
+ CHAR16 *Ptr;
+
+ Ptr = Buffer;
+ while ((Size--) != 0) {
+ *(Ptr++) = Value;
+ }
+}
+