Initial import.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseMemoryLibSse2/ia32/SetMem64.asm

@@ -0,0 +1,63 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;   SetMem64.asm
+;
+; Abstract:
+;
+;   SetMem64 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .686
+    .model  flat,C
+    .xmm
+    .code
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  _mem_SetMem64 (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count,
+;    IN UINT64 Value
+;    )
+;------------------------------------------------------------------------------
+InternalMemSetMem64 PROC    USES    edi
+    mov     ecx, [esp + 12]
+    mov     edi, [esp + 8]
+    test    edi, 8
+    DB      0f2h, 0fh, 12h, 44h, 24h, 16    ; movddup xmm0, [esp + 16]
+    jz      @F
+    movq    [edi], xmm0
+    add     edi, 8
+    dec     ecx
+@@:
+    mov     edx, ecx
+    shr     ecx, 1
+    jz      @SetQwords
+@@:
+    movntdq [edi], xmm0
+    add     edi, 16
+    loop    @B
+    mfence
+@SetQwords:
+    test    dl, 1
+    jz      @F
+    movq    [edi], xmm0
+@@:
+    ret
+InternalMemSetMem64 ENDP
+
+    END