1 files changed, 60 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem16.S b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem16.S
new file mode 100644
index 000000000000..06c7d6bb939f
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem16.S
@@ -0,0 +1,60 @@
+#
+# ConvertAsm.py: Automatically generated from SetMem16.asm
+#
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2009, 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.
+#
+# Module Name:
+#
+#   SetMem16.S
+#
+# Abstract:
+#
+#   SetMem16 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+#  VOID *
+#  EFIAPI
+#  InternalMemSetMem16 (
+#    IN VOID   *Buffer,
+#    IN UINTN  Count,
+#    IN UINT16 Value
+#    )
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(InternalMemSetMem16)
+ASM_PFX(InternalMemSetMem16):
+    pushq    %rdi
+    movq     %r8, %rax 
+    movd     %rax, %mm0 
+    movq     %rcx, %r8 
+    movq     %r8, %rdi 
+    movq     %rdx, %rcx 
+    andl     $3, %edx 
+    shrq     $2, %rcx
+    jz       L_SetWords
+    .byte    0x0f, 0x70, 0x0C0, 0x00
+L0:
+    movntq   %mm0, (%rdi) 
+    addq     $8, %rdi 
+    loop     L0
+    mfence
+L_SetWords:
+    movl    %edx, %ecx 
+    rep     stosw
+    movq    %r8, %rax
+    popq    %rdi
+    ret
+