1 files changed, 7 insertions, 8 deletions
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.S b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.S
index c4f0b4685d..306077a1fa 100644
--- a/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.S
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/SetMem64.S
@@ -3,7 +3,7 @@
 #
 #------------------------------------------------------------------------------
 #
-# Copyright (c) 2006 - 2008, Intel Corporation
+# Copyright (c) 2006 - 2009, 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
@@ -33,15 +33,14 @@
 #    IN UINT64 Value
 #    )
 #------------------------------------------------------------------------------
-.intel_syntax noprefix
 ASM_GLOBAL ASM_PFX(InternalMemSetMem64)
 ASM_PFX(InternalMemSetMem64):
-    push    rdi
-    mov     rdi, rcx
-    mov     rax, r8
-    xchg    rcx, rdx
+    pushq   %rdi
+    movq    %rcx, %rdi
+    movq    %r8, %rax
+    xchg    %rdx, %rcx
     rep     stosq
-    mov     rax, rdx
-    pop     rdi
+    movq    %rdx, %rax
+    popq    %rdi
     ret