1 files changed, 61 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem.S b/Core/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem.S
new file mode 100644
index 0000000000..ad7131f300
--- /dev/null
+++ b/Core/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem.S
@@ -0,0 +1,61 @@
+#
+# ConvertAsm.py: Automatically generated from SetMem.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:
+#
+#   SetMem.S
+#
+# Abstract:
+#
+#   SetMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+#  VOID *
+#  EFIAPI
+#  InternalMemSetMem (
+#    IN VOID   *Buffer,
+#    IN UINTN  Count,
+#    IN UINT8  Value
+#    )
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(InternalMemSetMem)
+ASM_PFX(InternalMemSetMem):
+    push    %rdi
+    movq    %r8, %rax
+    movb    %al, %ah
+    movd    %rax, %mm0
+    movq    %rcx, %r8
+    movq    %r8, %rdi                     # rdi <- Buffer
+    movq    %rdx, %rcx
+    andq    $7, %rdx 
+    shrq    $3, %rcx
+    jz      L_SetBytes
+    .byte   0x0f, 0x70, 0x0C0, 0x00
+L0:
+    movntq  %mm0, (%rdi) 
+    addq    $8, %rdi
+    loop    L0
+    mfence
+L_SetBytes:
+    movl    %edx, %ecx
+    rep       stosb
+    movq    %r8, %rax
+    pop     %rdi
+    ret
+