1 files changed, 99 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseMemoryLibRepStr/ScanMem8Wrapper.c b/Core/MdePkg/Library/BaseMemoryLibRepStr/ScanMem8Wrapper.c
new file mode 100644
index 0000000000..efbbe20a70
--- /dev/null
+++ b/Core/MdePkg/Library/BaseMemoryLibRepStr/ScanMem8Wrapper.c
@@ -0,0 +1,99 @@
+/** @file
+  ScanMem8() and ScanMemN() 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"
+
+/**
+  Scans a target buffer for an 8-bit value, and returns a pointer to the matching 8-bit value
+  in the target buffer.
+
+  This function searches the target buffer specified by Buffer and Length from the lowest
+  address to the highest address for an 8-bit value that matches Value.  If a match is found,
+  then a pointer to the matching byte in the target buffer is returned.  If no match is found,
+  then NULL is returned.  If Length is 0, then NULL is returned.
+  
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+  @param  Buffer      The pointer to the target buffer to scan.
+  @param  Length      The number of bytes in Buffer to scan.
+  @param  Value       The value to search for in the target buffer.
+
+  @return A pointer to the matching byte in the target buffer or NULL otherwise.
+
+**/
+VOID *
+EFIAPI
+ScanMem8 (
+  IN CONST VOID  *Buffer,
+  IN UINTN       Length,
+  IN UINT8       Value
+  )
+{
+  if (Length == 0) {
+    return NULL;
+  }
+  ASSERT (Buffer != NULL);
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
+ 
+  return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
+}
+
+/**
+  Scans a target buffer for a UINTN sized value, and returns a pointer to the matching 
+  UINTN sized value in the target buffer.
+
+  This function searches the target buffer specified by Buffer and Length from the lowest
+  address to the highest address for a UINTN sized value that matches Value.  If a match is found,
+  then a pointer to the matching byte in the target buffer is returned.  If no match is found,
+  then NULL is returned.  If Length is 0, then NULL is returned.
+  
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+  @param  Buffer      The pointer to the target buffer to scan.
+  @param  Length      The number of bytes in Buffer to scan.
+  @param  Value       The value to search for in the target buffer.
+
+  @return A pointer to the matching byte in the target buffer or NULL otherwise.
+
+**/
+VOID *
+EFIAPI
+ScanMemN (
+  IN CONST VOID  *Buffer,
+  IN UINTN       Length,
+  IN UINTN       Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return ScanMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return ScanMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
+