diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S index 6cd1474420..49cef3878b 100644 --- a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.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
@@ -32,21 +32,20 @@ # IN UINTN Count
# );
#------------------------------------------------------------------------------
-.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemZeroMem)
ASM_PFX(InternalMemZeroMem):
- push rdi
- push rcx
- xor rax, rax
- mov rdi, rcx
- mov rcx, rdx
- shr rcx, 3
- and rdx, 7
+ pushq %rdi
+ pushq %rcx
+ xorq %rax, %rax
+ movq %rcx, %rdi
+ movq %rdx, %rcx
+ shrq $3, %rcx
+ andq $7, %rdx
cld
rep stosq
- mov rcx, rdx
+ movq %rdx, %rcx
rep stosb
- pop rax
- pop rdi
+ popq %rax
+ popq %rdi
ret
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