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
This commit is contained in:
qhuang8
2009-08-11 15:32:16 +00:00
parent ba19956ac3
commit 1fef058f4b
162 changed files with 1087 additions and 1252 deletions

View File

@@ -2,7 +2,6 @@
CompareMem() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
@@ -10,9 +9,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -8,10 +8,8 @@
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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
@@ -30,13 +28,12 @@
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
/**
Copy Length bytes from Source to Destination.
@param DestinationBuffer Target of copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@return Destination
@@ -52,9 +49,9 @@ InternalMemCopyMem (
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
@@ -71,7 +68,7 @@ InternalMemSetMem (
Fills a target buffer with a 16-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Length Count of 16-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
@@ -89,7 +86,7 @@ InternalMemSetMem16 (
Fills a target buffer with a 32-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Length Count of 32-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
@@ -107,7 +104,7 @@ InternalMemSetMem32 (
Fills a target buffer with a 64-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Length Count of 64-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
@@ -163,7 +160,7 @@ InternalMemCompareMem (
matching 8-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan. Must be non-zero.
@param Length Count of 8-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
@@ -182,7 +179,7 @@ InternalMemScanMem8 (
matching 16-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan. Must be non-zero.
@param Length Count of 16-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
@@ -201,7 +198,7 @@ InternalMemScanMem16 (
matching 32-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan. Must be non-zero.
@param Length Count of 32-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
@@ -220,7 +217,7 @@ InternalMemScanMem32 (
matching 64-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan. Must be non-zero.
@param Length Count of 64-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -9,9 +9,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -1,7 +1,17 @@
/** @file
SetMem16() implementation.
Copyright (c) 2006 - 2008, Intel Corporation<BR>
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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
@@ -10,22 +20,8 @@
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
**/
#include "MemLibInternals.h"
/**

View File

@@ -1,7 +1,17 @@
/** @file
SetMem32() implementation.
Copyright (c) 2006 - 2008, Intel Corporation<BR>
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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
@@ -10,22 +20,8 @@
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
**/
#include "MemLibInternals.h"
/**

View File

@@ -1,7 +1,17 @@
/** @file
SetMem64() implementation.
Copyright (c) 2006 - 2008, Intel Corporation<BR>
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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
@@ -10,22 +20,8 @@
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
**/
#include "MemLibInternals.h"
/**

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008, Intel Corporation<BR>
Copyright (c) 2006 - 2009, Intel Corporation<BR>
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

View File

@@ -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
@@ -42,19 +42,18 @@
# IN UINTN Length
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemCompareMem)
ASM_PFX(InternalMemCompareMem):
push rsi
push rdi
mov rsi, rcx
mov rdi, rdx
mov rcx, r8
pushq %rsi
pushq %rdi
movq %rcx, %rsi
movq %rdx, %rdi
movq %r8, %rcx
repe cmpsb
movzx rax, byte ptr [rsi - 1]
movzx rdx, byte ptr [rdi - 1]
sub rax, rdx
pop rdi
pop rsi
movzbq -1(%rsi) , %rax
movzbq -1(%rdi) , %rdx
subq %rdx, %rax
popq %rdi
popq %rsi
ret

View File

@@ -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
@@ -34,34 +34,33 @@
# IN UINTN Count
# )
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemCopyMem)
ASM_PFX(InternalMemCopyMem):
push rsi
push rdi
mov rsi, rdx # rsi <- Source
mov rdi, rcx # rdi <- Destination
lea r9, [rsi + r8 - 1] # r9 <- End of Source
cmp rsi, rdi
mov rax, rdi # rax <- Destination as return value
pushq %rsi
pushq %rdi
movq %rdx, %rsi # rsi <- Source
movq %rcx, %rdi # rdi <- Destination
leaq -1(%rsi, %r8,), %r9 # r9 <- End of Source
cmpq %rdi, %rsi
movq %rdi, %rax # rax <- Destination as return value
jae _InternalMemCopyMem_al_0000
cmp r9, rdi
cmpq %rdi, %r9
jae _atSym_CopyBackward # Copy backward if overlapped
_InternalMemCopyMem_al_0000:
mov rcx, r8
and r8, 7
shr rcx, 3
movq %r8, %rcx
andq $7, %r8
shrq $3, %rcx
rep movsq # Copy as many Qwords as possible
jmp _atSym_CopyBytes
_atSym_CopyBackward:
mov rsi, r9 # rsi <- End of Source
lea rdi, [rdi + r8 - 1] # esi <- End of Destination
movq %r9, %rsi # rsi <- End of Source
leaq -1(%rdi, %r8), %rdi # rdi <- End of Destination
std # set direction flag
_atSym_CopyBytes:
mov rcx, r8
movq %r8, %rcx
rep movsb # Copy bytes backward
cld
pop rdi
pop rsi
popq %rdi
popq %rsi
ret

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@@ -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
@@ -42,16 +42,15 @@
# IN UINT16 Value
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemScanMem16)
ASM_PFX(InternalMemScanMem16):
push rdi
mov rdi, rcx
mov rax, r8
mov rcx, rdx
pushq %rdi
movq %rcx, %rdi
movq %rdx, %rcx
movq %r8, %rax
repne scasw
lea rax, [rdi - 2]
cmovnz rax, rcx
pop rdi
leaq -2(%rdi), %rax
cmovnz %rcx, %rax # set rax to 0 if not found
popq %rdi
ret

View File

@@ -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
@@ -42,16 +42,15 @@
# IN UINT32 Value
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemScanMem32)
ASM_PFX(InternalMemScanMem32):
push rdi
mov rdi, rcx
mov rax, r8
mov rcx, rdx
repne scasd
lea rax, [rdi - 4]
cmovnz rax, rcx
pop rdi
pushq %rdi
movq %rcx, %rdi
movq %rdx, %rcx
movq %r8, %rax
repne scasl
leaq -4(%rdi), %rax
cmovnz %rcx, %rax # set rax to 0 if not found
popq %rdi
ret

View File

@@ -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
@@ -42,16 +42,15 @@
# IN UINT64 Value
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemScanMem64)
ASM_PFX(InternalMemScanMem64):
push rdi
mov rdi, rcx
mov rax, r8
mov rcx, rdx
pushq %rdi
movq %rcx, %rdi
movq %rdx, %rcx
movq %r8, %rax
repne scasq
lea rax, [rdi - 8]
cmovnz rax, rcx
pop rdi
leaq -8(%rdi), %rax
cmovnz %rcx, %rax # set rax to 0 if not found
popq %rdi
ret

View File

@@ -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
@@ -42,16 +42,15 @@
# IN UINT8 Value
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemScanMem8)
ASM_PFX(InternalMemScanMem8):
push rdi
mov rdi, rcx
mov rcx, rdx
mov rax, r8
pushq %rdi
movq %rcx, %rdi
movq %rdx, %rcx
movq %r8, %rax
repne scasb
lea rax, [rdi - 1]
cmovnz rax, rcx # set rax to 0 if not found
pop rdi
leaq -1(%rdi), %rax
cmovnz %rcx, %rax # set rax to 0 if not found
popq %rdi
ret

View File

@@ -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
@@ -34,15 +34,14 @@
# IN UINT8 Value
# )
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemSetMem)
ASM_PFX(InternalMemSetMem):
push rdi
mov rax, r8 # rax = Value
mov rdi, rcx # rdi = Buffer
xchg rcx, rdx # rcx = Count, rdx = Buffer
pushq %rdi
movq %r8, %rax # rax = Value
movq %rcx, %rdi # rdi = Buffer
xchgq %rdx, %rcx # rcx = Count, rdx = Buffer
rep stosb
mov rax, rdx # rax = Buffer
pop rdi
movq %rdx, %rax # rax = Buffer
popq %rdi
ret

View File

@@ -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
@@ -34,15 +34,14 @@
# IN UINT16 Value
# )
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemSetMem16)
ASM_PFX(InternalMemSetMem16):
push rdi
mov rdi, rcx
mov rax, r8
xchg rcx, rdx
pushq %rdi
movq %rcx, %rdi
movq %r8, %rax
xchgq %rdx, %rcx
rep stosw
mov rax, rdx
pop rdi
movq %rdx, %rax
popq %rdi
ret

View File

@@ -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
@@ -34,15 +34,14 @@
# IN UINT32 Value
# );
#------------------------------------------------------------------------------
.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemSetMem32)
ASM_PFX(InternalMemSetMem32):
push rdi
mov rdi, rcx
mov rax, r8
xchg rcx, rdx
rep stosd
mov rax, rdx
pop rdi
pushq %rdi
movq %rcx, %rdi
movq %r8, %rax
xchgq %rdx, %rcx
rep stosl
movq %rdx, %rax
popq %rdi
ret

View File

@@ -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
xchgq %rdx, %rcx
rep stosq
mov rax, rdx
pop rdi
movw %rdx, %rax
popq %rdi
ret

View File

@@ -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
@@ -32,20 +32,19 @@
# 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
rep stosq
mov ecx, edx
movl %edx, %ecx
rep stosb
pop rax
pop rdi
popq %rax
popq %rdi
ret

View File

@@ -10,9 +10,9 @@
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
DxeMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2008 , Intel Corporation<BR>
Copyright (c) 2006 - 2009 , Intel Corporation<BR>
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
@@ -48,6 +48,5 @@ ZeroMem (
{
ASSERT (!(Buffer == NULL && Length > 0));
ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
return InternalMemZeroMem (Buffer, Length);
}