diff --git a/MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf b/MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
index e84a2c7ee5..eac88cf713 100644
--- a/MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
+++ b/MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
@@ -32,6 +32,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLib/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLib/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLib/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLib/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
index 18fc5875e2..2f37c69d6e 100644
--- a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
+++ b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
@@ -36,6 +36,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLibMmx/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLibMmx/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibMmx/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLibMmx/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLibMmx/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLibMmx/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibMmx/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf
index 6a7fa9a565..ed10b2e8fa 100644
--- a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf
@@ -92,6 +92,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLibOptDxe/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLibOptDxe/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLibOptDxe/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf b/MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
index 43c2cc2a0a..7e3136961c 100644
--- a/MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
+++ b/MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
@@ -33,6 +33,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLibOptPei/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLibOptPei/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibOptPei/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLibOptPei/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLibOptPei/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLibOptPei/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibOptPei/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf b/MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf
index 59983d0a0c..4dad964a97 100644
--- a/MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf
+++ b/MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf
@@ -33,6 +33,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLibRepStr/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLibRepStr/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibRepStr/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLibRepStr/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLibRepStr/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLibRepStr/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibRepStr/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
index 69a29a1b7d..fbc1a7b6cf 100644
--- a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
+++ b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
@@ -32,6 +32,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
diff --git a/MdePkg/Library/BaseMemoryLibSse2/SetMemNWrapper.c b/MdePkg/Library/BaseMemoryLibSse2/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibSse2/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/BaseMemoryLibSse2/SetMemWrapper.c b/MdePkg/Library/BaseMemoryLibSse2/SetMemWrapper.c
index 39ec8cb0db..31f8bd4957 100644
--- a/MdePkg/Library/BaseMemoryLibSse2/SetMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLibSse2/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/UefiMemoryLib/SetMemNWrapper.c b/MdePkg/Library/UefiMemoryLib/SetMemNWrapper.c
new file mode 100644
index 0000000000..8a7cfca63b
--- /dev/null
+++ b/MdePkg/Library/UefiMemoryLib/SetMemNWrapper.c
@@ -0,0 +1,54 @@
+/** @file
+  SetMemN() implementation.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
+
+  This function fills Length bytes of Buffer with the UINTN sized value specified by
+  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
+  bytes of Buffer.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+  If Buffer is not aligned on a UINTN boundary, then ASSERT().
+  If Length is not aligned on a UINTN boundary, then ASSERT().
+
+  @param  Buffer  The pointer to the target buffer to fill.
+  @param  Length  The number of bytes in Buffer to fill.
+  @param  Value   The value with which to fill Length bytes of Buffer.
+
+  @return Buffer.
+
+**/
+VOID *
+EFIAPI
+SetMemN (
+  OUT VOID  *Buffer,
+  IN UINTN  Length,
+  IN UINTN  Value
+  )
+{
+  if (sizeof (UINTN) == sizeof (UINT64)) {
+    return SetMem64 (Buffer, Length, (UINT64)Value);
+  } else {
+    return SetMem32 (Buffer, Length, (UINT32)Value);
+  }
+}
diff --git a/MdePkg/Library/UefiMemoryLib/SetMemWrapper.c b/MdePkg/Library/UefiMemoryLib/SetMemWrapper.c
index 1d54a8afe1..df1247d452 100644
--- a/MdePkg/Library/UefiMemoryLib/SetMemWrapper.c
+++ b/MdePkg/Library/UefiMemoryLib/SetMemWrapper.c
@@ -1,5 +1,5 @@
 /** @file
-  SetMem() and SetMemN() implementation.
+  SetMem() implementation.
 
   The following BaseMemoryLib instances contain the same copy of this file:
 
@@ -49,37 +49,3 @@ SetMem (
 
   return InternalMemSetMem (Buffer, Length, Value);
 }
-
-/**
-  Fills a target buffer with a value that is size UINTN, and returns the target buffer.
-
-  This function fills Length bytes of Buffer with the UINTN sized value specified by
-  Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
-  bytes of Buffer.
-
-  If Length > 0 and Buffer is NULL, then ASSERT().
-  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
-  If Buffer is not aligned on a UINTN boundary, then ASSERT().
-  If Length is not aligned on a UINTN boundary, then ASSERT().
-
-  @param  Buffer  The pointer to the target buffer to fill.
-  @param  Length  The number of bytes in Buffer to fill.
-  @param  Value   The value with which to fill Length bytes of Buffer.
-
-  @return Buffer.
-
-**/
-VOID *
-EFIAPI
-SetMemN (
-  OUT VOID  *Buffer,
-  IN UINTN  Length,
-  IN UINTN  Value
-  )
-{
-  if (sizeof (UINTN) == sizeof (UINT64)) {
-    return SetMem64 (Buffer, Length, (UINT64)Value);
-  } else {
-    return SetMem32 (Buffer, Length, (UINT32)Value);
-  }
-}
diff --git a/MdePkg/Library/UefiMemoryLib/UefiMemoryLib.inf b/MdePkg/Library/UefiMemoryLib/UefiMemoryLib.inf
index 2556225e1d..35dff7a4c3 100644
--- a/MdePkg/Library/UefiMemoryLib/UefiMemoryLib.inf
+++ b/MdePkg/Library/UefiMemoryLib/UefiMemoryLib.inf
@@ -32,6 +32,7 @@
   ScanMem8Wrapper.c
   ZeroMemWrapper.c
   CompareMemWrapper.c
+  SetMemNWrapper.c
   SetMem64Wrapper.c
   SetMem32Wrapper.c
   SetMem16Wrapper.c
@@ -47,7 +48,6 @@
 [Packages]
   MdePkg/MdePkg.dec
 
-
 [LibraryClasses]
   BaseLib
   UefiBootServicesTableLib