1 files changed, 54 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiSetMemRep4.S b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiSetMemRep4.S
new file mode 100644
index 0000000000..a9eb76ae67
--- /dev/null
+++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiSetMemRep4.S
@@ -0,0 +1,54 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008, 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:
+#
+#   EfiSetMemRep4.S
+#
+# Abstract:
+#
+#   SetMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+#include <EfiBind.h>
+
+    .code: 
+
+.global ASM_PFX(EfiCommonLibCopyMem)
+
+#------------------------------------------------------------------------------
+# VOID
+# EfiCommonLibSetMem (
+#   OUT     VOID                      *Buffer,
+#   IN      UINTN                     Size,
+#   IN      UINT8                     Value
+#   );
+#------------------------------------------------------------------------------
+ASM_PFX(EfiCommonLibSetMem):
+      push   %rdi
+      cmp    $0x0,%rdx
+      je     SetDone
+      mov    %rcx,%rdi
+      mov    %r8b,%al
+      mov    %al,%ah
+      shrd   $0x10,%eax,%ecx
+      shld   $0x10,%ecx,%eax
+      mov    %rdx,%rcx
+      shr    $0x2,%rcx
+      rep stos %eax,%es:(%rdi)
+      mov    %rdx,%rcx
+      and    $0x3,%rcx
+      rep stos %al,%es:(%rdi)
+SetDone:
+      pop    %rdi
+      retq