add corresponding .S files for BaseMemoryLibXXX X64 arch. Note that we use ".intel_syntax noprefix" directive to simplify the .S implementation.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6184 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S

@@ -0,0 +1,61 @@
+#
+# ConvertAsm.py: Automatically generated from SetMem64.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+#   SetMem64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+#  VOID *
+#  InternalMemSetMem64 (
+#    IN VOID   *Buffer,
+#    IN UINTN  Count,
+#    IN UINT64 Value
+#    )
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemSetMem64)
+ASM_PFX(InternalMemSetMem64):
+    mov     rax, rcx                    # rax <- Buffer
+    xchg    rcx, rdx                    # rcx <- Count & rdx <- Buffer
+    test    dl, 8
+    movq    xmm0, r8
+    jz      L0
+    mov     [rdx], r8
+    add     rdx, 8
+    dec     rcx
+L0:
+    shr     rcx, 1
+    jz      _SetQwords_L2
+    movlhps xmm0, xmm0
+L1:
+    movntdq [rdx], xmm0
+    lea     rdx, [rdx + 16]
+    loop    L1
+    mfence
+_SetQwords_L2:
+    jnc     L2
+    mov     [rdx], r8
+L2:
+    ret
+