1 files changed, 63 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm b/Core/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm
new file mode 100644
index 0000000000..8d5bca0e70
--- /dev/null
+++ b/Core/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.asm
@@ -0,0 +1,63 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, 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.asm
+;
+; Abstract:
+;
+;   SetMem16 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .686
+    .model  flat,C
+    .mmx
+    .code
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  EFIAPI
+;  InternalMemSetMem16 (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count,
+;    IN UINT16 Value
+;    )
+;------------------------------------------------------------------------------
+InternalMemSetMem16 PROC    USES    edi
+    mov     eax, [esp + 16]
+    shrd    edx, eax, 16
+    shld    eax, edx, 16
+    mov     edx, [esp + 12]
+    mov     edi, [esp + 8]
+    mov     ecx, edx
+    and     edx, 3
+    shr     ecx, 2
+    jz      @SetWords
+    movd    mm0, eax
+    movd    mm1, eax
+    psllq   mm0, 32
+    por     mm0, mm1
+@@:
+    movq    [edi], mm0
+    add     edi, 8
+    loop    @B
+@SetWords:
+    mov     ecx, edx
+    rep     stosw
+    mov     eax, [esp + 8]
+    ret
+InternalMemSetMem16 ENDP
+
+    END