diff options
author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-08-11 15:32:16 +0000 |
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committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-08-11 15:32:16 +0000 |
commit | 1fef058f4b8fefc455bb171e4908c3e835b1b492 (patch) | |
tree | a61203bc9df33742251d8496b9b481399677caf1 /MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S | |
parent | ba19956ac3c600eaeff1c90556457105032218d8 (diff) | |
download | edk2-platforms-1fef058f4b8fefc455bb171e4908c3e835b1b492.tar.xz |
clean up all of eight BaseMemoryLib instances in MdePkg with the following updates:
1. Remove .intel_syntax directives in GCC assembly files. All these assembly files have been updated to use the preferred syntax for GAS
2. Correct the incorrect comments for internal worker functions for SetMemXX() and ScanMemXX(). The Length parameter is actually the counter of 16-bit, 32-bit or 64-bit value.
3. Simplify the logic in ZeroMemoryWrapper.c for BaseMemoryLibOptPei instance to remove the conditional statement for zero length. This logic is already covered by worker function InternalMemZeroMem().
4. Cleanup all the Wrapper C files in BaseMemoryLib instances. They are supposed to be shared by all these 8 BaseMemoryLib instances, but are out-of-sync after some maintenance. This patch re-syncs them and makes them exactly the same.
5. Cleanup MemLibInternal.h so that it is shared by 6 BaseMemoryLib instance except for PeiMemoryLib and UefiMemoryLib.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9041 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S b/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S index b5dec03031..4ea751f97a 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.S +++ b/MdePkg/Library/BaseMemoryLibMmx/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
@@ -32,27 +32,26 @@ # IN UINTN Count
# );
#------------------------------------------------------------------------------
-.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemZeroMem)
ASM_PFX(InternalMemZeroMem):
- push rdi
- mov rdi, rcx
- mov rcx, rdx
- mov r8, rdi
- and edx, 7
- shr rcx, 3
+ pushq %rdi
+ movq %rcx, %rdi
+ movq %rdx, %rcx
+ movq %rdi, %r8
+ andq $7, %rdx
+ shrq $3, %rcx
jz L_ZeroBytes
- pxor mm0, mm0
+ pxor %mm0, %mm0
L0:
- movntq [rdi], mm0
- add rdi, 8
+ movntq %mm0, (%rdi)
+ addq $8, %rdi
loop L0
mfence
L_ZeroBytes:
- xor eax, eax
- mov ecx, edx
+ xorl %eax, %eax
+ movl %edx, %ecx
rep stosb
- mov rax, r8
- pop rdi
+ movq %r8, %rax
+ popq %rdi
ret
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