1 files changed, 59 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.S b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.S
new file mode 100644
index 0000000000..e0a787afb4
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.S
@@ -0,0 +1,59 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, 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:
+#
+#   SetMem16.asm
+#
+# Abstract:
+#
+#   SetMem16 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemSetMem16
+
+#------------------------------------------------------------------------------
+#  VOID *
+#  InternalMemSetMem16 (
+#    IN VOID   *Buffer,
+#    IN UINTN  Count,
+#    IN UINT16 Value
+#    )
+#------------------------------------------------------------------------------
+_InternalMemSetMem16:
+    push    %edi
+    movl    16(%esp), %eax
+    shrdl   $16, %eax, %edx
+    shldl   $16, %edx, %eax
+    movl    12(%esp), %edx
+    movl    8(%esp), %edi
+    movl    %edx, %ecx
+    andl    $3, %edx
+    shrl    $2, %ecx
+    jz      L1
+    movd    %eax, %mm0
+    movd    %eax, %mm1
+    psllq   $32, %mm0
+    por     %mm1, %mm0
+L0:
+    movq    %mm0, (%edi)
+    addl    $8, %edi
+    loopl   L0
+L1:
+    movl    %edx, %ecx
+    rep
+    stosw
+    movl    8(%esp), %eax
+    pop     %edi
+    ret