From f1baef624fb7119c54c3389a2cd99b108ee08f0e Mon Sep 17 00:00:00 2001 From: vanjeff Date: Mon, 2 Jul 2007 09:34:25 +0000 Subject: 1. Port X64, IPF and EBC arch for BaseLib 2. Port X64 arch codes for BaseMemoryLibRepStr and BaseMemoryLibSee2 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2955 6f19259b-4bc3-4df7-8a09-765794883524 --- MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.S | 111 +++++++------ .../Library/BaseMemoryLibSse2/Ia32/CompareMem.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S | 175 ++++++++++----------- MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.S | 105 ++++++------- .../Library/BaseMemoryLibSse2/Ia32/ScanMem16.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.S | 105 ++++++------- .../Library/BaseMemoryLibSse2/Ia32/ScanMem32.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S | 123 +++++++-------- .../Library/BaseMemoryLibSse2/Ia32/ScanMem64.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.S | 105 ++++++------- MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.S | 157 +++++++++--------- MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.S | 143 ++++++++--------- MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S | 141 ++++++++--------- MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm | 5 - MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S | 135 ++++++++-------- MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.asm | 5 - .../Library/BaseMemoryLibSse2/x64/CompareMem.asm | 52 ++++++ MdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm | 79 ++++++++++ MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm | 51 ++++++ MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm | 51 ++++++ MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm | 51 ++++++ MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm | 51 ++++++ MdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm | 69 ++++++++ MdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm | 67 ++++++++ MdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm | 66 ++++++++ MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm | 59 +++++++ MdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm | 63 ++++++++ 33 files changed, 1284 insertions(+), 735 deletions(-) create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm create mode 100644 MdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm (limited to 'MdePkg/Library/BaseMemoryLibSse2') diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.S index 3968604ca6..725367b2f9 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.S @@ -1,58 +1,53 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# CompareMem.Asm -# -# Abstract: -# -# CompareMem function -# -# Notes: -# -# The following BaseMemoryLib instances share the same version of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# -#------------------------------------------------------------------------------ - -.globl _InternalMemCompareMem - -#------------------------------------------------------------------------------ -# INTN -# EFIAPI -# InternalMemCompareMem ( -# IN CONST VOID *DestinationBuffer, -# IN CONST VOID *SourceBuffer, -# IN UINTN Length -# ); -#------------------------------------------------------------------------------ -_InternalMemCompareMem: - push %esi - push %edi - movl 12(%esp), %esi - movl 16(%esp), %edi - movl 20(%esp), %ecx - repe cmpsb - movzbl -1(%esi), %eax - movzbl -1(%edi), %edx - subl %edx, %eax - pop %edi - pop %esi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# CompareMem.Asm +# +# Abstract: +# +# CompareMem function +# +# Notes: +# +# The following BaseMemoryLib instances share the same version of this file: +# +# BaseMemoryLibRepStr +# BaseMemoryLibMmx +# BaseMemoryLibSse2 +# +#------------------------------------------------------------------------------ + +.globl _InternalMemCompareMem + +#------------------------------------------------------------------------------ +# INTN +# EFIAPI +# InternalMemCompareMem ( +# IN CONST VOID *DestinationBuffer, +# IN CONST VOID *SourceBuffer, +# IN UINTN Length +# ); +#------------------------------------------------------------------------------ +_InternalMemCompareMem: + push %esi + push %edi + movl 12(%esp), %esi + movl 16(%esp), %edi + movl 20(%esp), %ecx + repe cmpsb + movzbl -1(%esi), %eax + movzbl -1(%edi), %edx + subl %edx, %eax + pop %edi + pop %esi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.asm index 2509e40bd8..1d0e7fad39 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CompareMem.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S index 82a2b94d0b..ddbcbaf1b1 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S @@ -1,90 +1,85 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# CopyMem.asm -# -# Abstract: -# -# CopyMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemCopyMem - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemCopyMem ( -# IN VOID *Destination, -# IN VOID *Source, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -_InternalMemCopyMem: - push %esi - push %edi - movl 16(%esp), %esi # esi <- Source - movl 12(%esp), %edi # edi <- Destination - movl 20(%esp), %edx # edx <- Count - leal -1(%esi,%edx,), %eax # eax <- End of Source - cmpl %edi, %esi - jae L0 - cmpl %edi, %eax # Overlapped? - jae L_CopyBackward # Copy backward if overlapped -L0: - xorl %ecx, %ecx - subl %edi, %ecx - andl $15, %ecx # ecx + edi aligns on 16-byte boundary - jz L1 - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx # edx <- remaining bytes to copy - rep - movsb -L1: - movl %edx, %ecx - andl $15, %edx - shrl $4, %ecx # ecx <- # of DQwords to copy - jz L_CopyBytes - addl $-16, %esp - movdqu %xmm0, (%esp) -L2: - movdqu (%esi), %xmm0 - movntdq %xmm0, (%edi) - addl $16, %esi - addl $16, %edi - loop L2 - mfence - movdqu (%esp),%xmm0 - addl $16, %esp # stack cleanup - jmp L_CopyBytes -L_CopyBackward: - movl %eax, %esi # esi <- Last byte in Source - leal -1(%edi,%edx,), %edi # edi <- Last byte in Destination - std -L_CopyBytes: - movl %edx, %ecx - rep - movsb - cld - movl 12(%esp), %eax # eax <- Destination as return value - pop %edi - pop %esi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# CopyMem.asm +# +# Abstract: +# +# CopyMem function +# +# Notes: +# +#------------------------------------------------------------------------------ + +.globl _InternalMemCopyMem + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemCopyMem ( +# IN VOID *Destination, +# IN VOID *Source, +# IN UINTN Count +# ); +#------------------------------------------------------------------------------ +_InternalMemCopyMem: + push %esi + push %edi + movl 16(%esp), %esi # esi <- Source + movl 12(%esp), %edi # edi <- Destination + movl 20(%esp), %edx # edx <- Count + leal -1(%esi,%edx,), %eax # eax <- End of Source + cmpl %edi, %esi + jae L0 + cmpl %edi, %eax # Overlapped? + jae L_CopyBackward # Copy backward if overlapped +L0: + xorl %ecx, %ecx + subl %edi, %ecx + andl $15, %ecx # ecx + edi aligns on 16-byte boundary + jz L1 + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx # edx <- remaining bytes to copy + rep + movsb +L1: + movl %edx, %ecx + andl $15, %edx + shrl $4, %ecx # ecx <- # of DQwords to copy + jz L_CopyBytes + addl $-16, %esp + movdqu %xmm0, (%esp) +L2: + movdqu (%esi), %xmm0 + movntdq %xmm0, (%edi) + addl $16, %esi + addl $16, %edi + loop L2 + mfence + movdqu (%esp),%xmm0 + addl $16, %esp # stack cleanup + jmp L_CopyBytes +L_CopyBackward: + movl %eax, %esi # esi <- Last byte in Source + leal -1(%edi,%edx,), %edi # edi <- Last byte in Destination + std +L_CopyBytes: + movl %edx, %ecx + rep + movsb + cld + movl 12(%esp), %eax # eax <- Destination as return value + pop %edi + pop %esi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.asm index 034918af2f..77fb786d98 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.S index 276b4ff29f..5e65b9667a 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.S @@ -1,55 +1,50 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# ScanMem16.Asm -# -# Abstract: -# -# ScanMem16 function -# -# Notes: -# -# The following BaseMemoryLib instances share the same version of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# -#------------------------------------------------------------------------------ - -.globl _InternalMemScanMem16 - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem16 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT16 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemScanMem16: - push %edi - movl 12(%esp), %ecx - movl 8(%esp), %edi - movl 16(%esp), %eax - repne scasw - leal -2(%edi), %eax - cmovnz %ecx, %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# ScanMem16.Asm +# +# Abstract: +# +# ScanMem16 function +# +# Notes: +# +# The following BaseMemoryLib instances share the same version of this file: +# +# BaseMemoryLibRepStr +# BaseMemoryLibMmx +# BaseMemoryLibSse2 +# +#------------------------------------------------------------------------------ + +.globl _InternalMemScanMem16 + +#------------------------------------------------------------------------------ +# CONST VOID * +# EFIAPI +# InternalMemScanMem16 ( +# IN CONST VOID *Buffer, +# IN UINTN Length, +# IN UINT16 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemScanMem16: + push %edi + movl 12(%esp), %ecx + movl 8(%esp), %edi + movl 16(%esp), %eax + repne scasw + leal -2(%edi), %eax + cmovnz %ecx, %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.asm index 6b5c81f556..57fab61b77 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem16.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.S index fced1b2362..5d46ed2bc1 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.S @@ -1,55 +1,50 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# ScanMem32.Asm -# -# Abstract: -# -# ScanMem32 function -# -# Notes: -# -# The following BaseMemoryLib instances share the same version of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# -#------------------------------------------------------------------------------ - -.globl _InternalMemScanMem32 - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem32 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT32 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemScanMem32: - push %edi - movl 12(%esp), %ecx - movl 8(%esp), %edi - movl 16(%esp), %eax - repne scasl - leal -4(%edi), %eax - cmovnz %ecx, %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# ScanMem32.Asm +# +# Abstract: +# +# ScanMem32 function +# +# Notes: +# +# The following BaseMemoryLib instances share the same version of this file: +# +# BaseMemoryLibRepStr +# BaseMemoryLibMmx +# BaseMemoryLibSse2 +# +#------------------------------------------------------------------------------ + +.globl _InternalMemScanMem32 + +#------------------------------------------------------------------------------ +# CONST VOID * +# EFIAPI +# InternalMemScanMem32 ( +# IN CONST VOID *Buffer, +# IN UINTN Length, +# IN UINT32 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemScanMem32: + push %edi + movl 12(%esp), %ecx + movl 8(%esp), %edi + movl 16(%esp), %eax + repne scasl + leal -4(%edi), %eax + cmovnz %ecx, %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.asm index cb0feed6be..6ac857ce16 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S index 37dc3bbf67..3ba69650ab 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S @@ -1,64 +1,59 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# ScanMem64.Asm -# -# Abstract: -# -# ScanMem64 function -# -# Notes: -# -# The following BaseMemoryLib instances share the same version of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# -#------------------------------------------------------------------------------ - -.globl _InternalMemScanMem64 - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem64 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT64 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemScanMem64: - push %edi - movl 12(%esp), %ecx - movl 16(%esp), %eax - movl 20(%esp), %edx - movl 8(%esp), %edi -L0: - cmpl (%edi), %eax - leal 8(%edi), %edi - loopne L0 - jne L1 - cmpl -4(%edi), %edx - jecxz L1 - jne L0 -L1: - leal -8(%edi), %eax - cmovne %ecx, %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# ScanMem64.Asm +# +# Abstract: +# +# ScanMem64 function +# +# Notes: +# +# The following BaseMemoryLib instances share the same version of this file: +# +# BaseMemoryLibRepStr +# BaseMemoryLibMmx +# BaseMemoryLibSse2 +# +#------------------------------------------------------------------------------ + +.globl _InternalMemScanMem64 + +#------------------------------------------------------------------------------ +# CONST VOID * +# EFIAPI +# InternalMemScanMem64 ( +# IN CONST VOID *Buffer, +# IN UINTN Length, +# IN UINT64 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemScanMem64: + push %edi + movl 12(%esp), %ecx + movl 16(%esp), %eax + movl 20(%esp), %edx + movl 8(%esp), %edi +L0: + cmpl (%edi), %eax + leal 8(%edi), %edi + loopne L0 + jne L1 + cmpl -4(%edi), %edx + jecxz L1 + jne L0 +L1: + leal -8(%edi), %eax + cmovne %ecx, %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.asm index ee0deddc61..ca54f13738 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.S index e7d2a26cad..7a834a5635 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.S @@ -1,55 +1,50 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# ScanMem8.Asm -# -# Abstract: -# -# ScanMem8 function -# -# Notes: -# -# The following BaseMemoryLib instances share the same version of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# -#------------------------------------------------------------------------------ - -.globl _InternalMemScanMem8 - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem8 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT8 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemScanMem8: - push %edi - movl 12(%esp), %ecx - movl 8(%esp), %edi - movb 16(%esp), %al - repne scasb - leal -1(%edi), %eax - cmovnz %ecx, %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# ScanMem8.Asm +# +# Abstract: +# +# ScanMem8 function +# +# Notes: +# +# The following BaseMemoryLib instances share the same version of this file: +# +# BaseMemoryLibRepStr +# BaseMemoryLibMmx +# BaseMemoryLibSse2 +# +#------------------------------------------------------------------------------ + +.globl _InternalMemScanMem8 + +#------------------------------------------------------------------------------ +# CONST VOID * +# EFIAPI +# InternalMemScanMem8 ( +# IN CONST VOID *Buffer, +# IN UINTN Length, +# IN UINT8 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemScanMem8: + push %edi + movl 12(%esp), %ecx + movl 8(%esp), %edi + movb 16(%esp), %al + repne scasb + leal -1(%edi), %eax + cmovnz %ecx, %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.asm index 97d201abb5..a3f65b64fa 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem8.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.S index aa6f59fb4f..86bba889f2 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.S @@ -1,81 +1,76 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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.asm -# -# Abstract: -# -# SetMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - - .686: - #.MODEL flat,C - .xmm: - .code: - -#------------------------------------------------------------------------------ -# VOID * -# _mem_SetMem ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT8 Value -# ); -#------------------------------------------------------------------------------ -.globl _InternalMemSetMem -_InternalMemSetMem: - push %edi - movl 12(%esp), %edx # edx <- Count - movl 8(%esp), %edi # edi <- Buffer - movb 16(%esp), %al # al <- Value - xorl %ecx, %ecx - subl %edi, %ecx - andl $15, %ecx # ecx + edi aligns on 16-byte boundary - jz L0 - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosb -L0: - movl %edx, %ecx - andl $15, %edx - shrl $4, %ecx # ecx <- # of DQwords to set - jz L_SetBytes - movb %al, %ah # ax <- Value | (Value << 8) - addl $-16, %esp - movdqu %xmm0, (%esp) - movd %eax, %xmm0 - pshuflw $0, %xmm0, %xmm0 - movlhps %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence - movdqu (%esp), %xmm0 - addl $16, %esp # stack cleanup -L_SetBytes: - movl %edx, %ecx - rep - stosb - movl 8(%esp), %eax # eax <- Buffer as return value - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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.asm +# +# Abstract: +# +# SetMem function +# +# Notes: +# +#------------------------------------------------------------------------------ + + .686: + #.MODEL flat,C + .xmm: + .code: + +#------------------------------------------------------------------------------ +# VOID * +# _mem_SetMem ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT8 Value +# ); +#------------------------------------------------------------------------------ +.globl _InternalMemSetMem +_InternalMemSetMem: + push %edi + movl 12(%esp), %edx # edx <- Count + movl 8(%esp), %edi # edi <- Buffer + movb 16(%esp), %al # al <- Value + xorl %ecx, %ecx + subl %edi, %ecx + andl $15, %ecx # ecx + edi aligns on 16-byte boundary + jz L0 + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosb +L0: + movl %edx, %ecx + andl $15, %edx + shrl $4, %ecx # ecx <- # of DQwords to set + jz L_SetBytes + movb %al, %ah # ax <- Value | (Value << 8) + addl $-16, %esp + movdqu %xmm0, (%esp) + movd %eax, %xmm0 + pshuflw $0, %xmm0, %xmm0 + movlhps %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence + movdqu (%esp), %xmm0 + addl $16, %esp # stack cleanup +L_SetBytes: + movl %edx, %ecx + rep + stosb + movl 8(%esp), %eax # eax <- Buffer as return value + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.asm index ab89482d6f..a4de29c521 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.S index fac9a722b0..8ec96a9b6c 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.S @@ -1,74 +1,69 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# SetMem16.asm -# -# Abstract: -# -# SetMem16 function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemSetMem16 - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem16 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT16 Value -# ) -#------------------------------------------------------------------------------ -_InternalMemSetMem16: - push %edi - movl 12(%esp), %edx - movl 8(%esp), %edi - xorl %ecx, %ecx - subl %edi, %ecx - andl $15, %ecx # ecx + edi aligns on 16-byte boundary - movl 16(%esp), %eax - jz L0 - shrl %ecx - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosw -L0: - movl %edx, %ecx - andl $7, %edx - shrl $3, %ecx - jz L_SetWords - movd %eax, %xmm0 - pshuflw $0, %xmm0, %xmm0 - movlhps %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence -L_SetWords: - movl %edx, %ecx - rep - stosw - movl 8(%esp), %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# SetMem16.asm +# +# Abstract: +# +# SetMem16 function +# +# Notes: +# +#------------------------------------------------------------------------------ + +.globl _InternalMemSetMem16 + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemSetMem16 ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT16 Value +# ) +#------------------------------------------------------------------------------ +_InternalMemSetMem16: + push %edi + movl 12(%esp), %edx + movl 8(%esp), %edi + xorl %ecx, %ecx + subl %edi, %ecx + andl $15, %ecx # ecx + edi aligns on 16-byte boundary + movl 16(%esp), %eax + jz L0 + shrl %ecx + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosw +L0: + movl %edx, %ecx + andl $7, %edx + shrl $3, %ecx + jz L_SetWords + movd %eax, %xmm0 + pshuflw $0, %xmm0, %xmm0 + movlhps %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence +L_SetWords: + movl %edx, %ecx + rep + stosw + movl 8(%esp), %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.asm index 75abe18b1d..a709899fe2 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S index 8b0095a1e2..f91169a6e0 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S @@ -1,73 +1,68 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# SetMem32.asm -# -# Abstract: -# -# SetMem32 function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemSetMem32 - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem32 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT32 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemSetMem32: - push %edi - movl 12(%esp), %edx - movl 8(%esp), %edi - xorl %ecx, %ecx - subl %edi, %ecx - andl $15, %ecx # ecx + edi aligns on 16-byte boundary - movl 16(%esp), %eax - jz L0 - shrl $2, %ecx - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosl -L0: - movl %edx, %ecx - andl $3, %edx - shrl $2, %ecx - jz L_SetDwords - movd %eax, %xmm0 - pshufd $0, %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence -L_SetDwords: - movl %edx, %ecx - rep - stosl - movl 8(%esp), %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# SetMem32.asm +# +# Abstract: +# +# SetMem32 function +# +# Notes: +# +#------------------------------------------------------------------------------ + +.globl _InternalMemSetMem32 + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemSetMem32 ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT32 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemSetMem32: + push %edi + movl 12(%esp), %edx + movl 8(%esp), %edi + xorl %ecx, %ecx + subl %edi, %ecx + andl $15, %ecx # ecx + edi aligns on 16-byte boundary + movl 16(%esp), %eax + jz L0 + shrl $2, %ecx + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosl +L0: + movl %edx, %ecx + andl $3, %edx + shrl $2, %ecx + jz L_SetDwords + movd %eax, %xmm0 + pshufd $0, %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence +L_SetDwords: + movl %edx, %ecx + rep + stosl + movl 8(%esp), %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.asm index c12af90e79..99954a5e4b 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S index bf42354572..ef9918f0f9 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - #------------------------------------------------------------------------------ # # Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm index 17f0eb4bea..69406707a6 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S index 657584d4df..8b4157f741 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S @@ -1,70 +1,65 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006, 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 -# 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: -# -# ZeroMem.asm -# -# Abstract: -# -# ZeroMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemZeroMem - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemZeroMem ( -# IN VOID *Buffer, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -_InternalMemZeroMem: - push %edi - movl 8(%esp), %edi - movl 12(%esp), %edx - xorl %ecx, %ecx - subl %edi, %ecx - xorl %eax, %eax - andl $15, %ecx - jz L0 - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosb -L0: - movl %edx, %ecx - andl $15, %edx - shrl $4, %ecx - jz L_ZeroBytes - pxor %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence -L_ZeroBytes: - movl %edx, %ecx - rep - stosb - movl 8(%esp), %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, 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 +# 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: +# +# ZeroMem.asm +# +# Abstract: +# +# ZeroMem function +# +# Notes: +# +#------------------------------------------------------------------------------ + +.globl _InternalMemZeroMem + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemZeroMem ( +# IN VOID *Buffer, +# IN UINTN Count +# ); +#------------------------------------------------------------------------------ +_InternalMemZeroMem: + push %edi + movl 8(%esp), %edi + movl 12(%esp), %edx + xorl %ecx, %ecx + subl %edi, %ecx + xorl %eax, %eax + andl $15, %ecx + jz L0 + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosb +L0: + movl %edx, %ecx + andl $15, %edx + shrl $4, %ecx + jz L_ZeroBytes + pxor %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence +L_ZeroBytes: + movl %edx, %ecx + rep + stosb + movl 8(%esp), %eax + pop %edi + ret diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.asm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.asm index 294e8ce041..3792c88879 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.asm +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.asm @@ -1,8 +1,3 @@ -// -// Include common header file for this module. -// - - ;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, Intel Corporation diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm new file mode 100644 index 0000000000..554bc07c64 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/CompareMem.asm @@ -0,0 +1,52 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; CompareMem.Asm +; +; Abstract: +; +; CompareMem function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; INTN +; EFIAPI +; InternalMemCompareMem ( +; IN CONST VOID *DestinationBuffer, +; IN CONST VOID *SourceBuffer, +; IN UINTN Length +; ); +;------------------------------------------------------------------------------ +InternalMemCompareMem PROC USES rsi rdi + mov rsi, rcx + mov rdi, rdx + mov rcx, r8 + repe cmpsb + movzx rax, byte ptr [rsi - 1] + movzx rdx, byte ptr [rdi - 1] + sub rax, rdx + ret +InternalMemCompareMem ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm new file mode 100644 index 0000000000..03ffe0c00f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/CopyMem.asm @@ -0,0 +1,79 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; CopyMem.asm +; +; Abstract: +; +; CopyMem function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; EFIAPI +; InternalMemCopyMem ( +; IN VOID *Destination, +; IN VOID *Source, +; IN UINTN Count +; ); +;------------------------------------------------------------------------------ +InternalMemCopyMem PROC USES rsi rdi + mov rsi, rdx ; rsi <- Source + mov rdi, rcx ; rdi <- Destination + lea r9, [rsi + r8 - 1] ; r9 <- Last byte of Source + cmp rsi, rdi + mov rax, rdi ; rax <- Destination as return value + jae @F ; Copy forward if Source > Destination + cmp r9, rdi ; Overlapped? + jae @CopyBackward ; Copy backward if overlapped +@@: + xor rcx, rcx + sub rcx, rdi ; rcx <- -rdi + and rcx, 15 ; rcx + rsi should be 16 bytes aligned + jz @F ; skip if rcx == 0 + cmp rcx, r8 + cmova rcx, r8 + sub r8, rcx + rep movsb +@@: + mov rcx, r8 + and r8, 15 + shr rcx, 4 ; rcx <- # of DQwords to copy + jz @CopyBytes + movdqa [rsp + 18h], xmm0 ; save xmm0 on stack +@@: + movdqu xmm0, [rsi] ; rsi may not be 16-byte aligned + movntdq [rdi], xmm0 ; rdi should be 16-byte aligned + add rsi, 16 + add rdi, 16 + loop @B + mfence + movdqa xmm0, [rsp + 18h] ; restore xmm0 + jmp @CopyBytes ; copy remaining bytes +@CopyBackward: + mov rsi, r9 ; rsi <- Last byte of Source + lea rdi, [rdi + r8 - 1] ; rdi <- Last byte of Destination + std +@CopyBytes: + mov rcx, r8 + rep movsb + cld + ret +InternalMemCopyMem ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm new file mode 100644 index 0000000000..a2538c2cca --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem16.asm @@ -0,0 +1,51 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; ScanMem16.Asm +; +; Abstract: +; +; ScanMem16 function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; CONST VOID * +; EFIAPI +; InternalMemScanMem16 ( +; IN CONST VOID *Buffer, +; IN UINTN Length, +; IN UINT16 Value +; ); +;------------------------------------------------------------------------------ +InternalMemScanMem16 PROC USES rdi + mov rdi, rcx + mov rax, r8 + mov rcx, rdx + repne scasw + lea rax, [rdi - 2] + cmovnz rax, rcx + ret +InternalMemScanMem16 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm new file mode 100644 index 0000000000..e0523d8547 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem32.asm @@ -0,0 +1,51 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; ScanMem32.Asm +; +; Abstract: +; +; ScanMem32 function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; CONST VOID * +; EFIAPI +; InternalMemScanMem32 ( +; IN CONST VOID *Buffer, +; IN UINTN Length, +; IN UINT32 Value +; ); +;------------------------------------------------------------------------------ +InternalMemScanMem32 PROC USES rdi + mov rdi, rcx + mov rax, r8 + mov rcx, rdx + repne scasd + lea rax, [rdi - 4] + cmovnz rax, rcx + ret +InternalMemScanMem32 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm new file mode 100644 index 0000000000..0e7e9c782f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem64.asm @@ -0,0 +1,51 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; ScanMem64.Asm +; +; Abstract: +; +; ScanMem64 function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; CONST VOID * +; EFIAPI +; InternalMemScanMem64 ( +; IN CONST VOID *Buffer, +; IN UINTN Length, +; IN UINT64 Value +; ); +;------------------------------------------------------------------------------ +InternalMemScanMem64 PROC USES rdi + mov rdi, rcx + mov rax, r8 + mov rcx, rdx + repne scasq + lea rax, [rdi - 8] + cmovnz rax, rcx + ret +InternalMemScanMem64 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm new file mode 100644 index 0000000000..879273f960 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/ScanMem8.asm @@ -0,0 +1,51 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; ScanMem8.Asm +; +; Abstract: +; +; ScanMem8 function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; CONST VOID * +; EFIAPI +; InternalMemScanMem8 ( +; IN CONST VOID *Buffer, +; IN UINTN Length, +; IN UINT8 Value +; ); +;------------------------------------------------------------------------------ +InternalMemScanMem8 PROC USES rdi + mov rdi, rcx + mov rcx, rdx + mov rax, r8 + repne scasb + lea rax, [rdi - 1] + cmovnz rax, rcx ; set rax to 0 if not found + ret +InternalMemScanMem8 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm new file mode 100644 index 0000000000..25cfcf0d12 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem.asm @@ -0,0 +1,69 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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.asm +; +; Abstract: +; +; SetMem function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemSetMem ( +; IN VOID *Buffer, +; IN UINTN Count, +; IN UINT8 Value +; ) +;------------------------------------------------------------------------------ +InternalMemSetMem PROC USES rdi + mov rdi, rcx ; rdi <- Buffer + mov al, r8b ; al <- Value + mov r9, rdi ; r9 <- Buffer as return value + xor rcx, rcx + sub rcx, rdi + and rcx, 15 ; rcx + rdi aligns on 16-byte boundary + jz @F + cmp rcx, rdx + cmova rcx, rdx + sub rdx, rcx + rep stosb +@@: + mov rcx, rdx + and rdx, 15 + shr rcx, 4 + jz @SetBytes + mov ah, al ; ax <- Value repeats twice + movdqa [rsp + 10h], xmm0 ; save xmm0 + movd xmm0, eax ; xmm0[0..16] <- Value repeats twice + pshuflw xmm0, xmm0, 0 ; xmm0[0..63] <- Value repeats 8 times + movlhps xmm0, xmm0 ; xmm0 <- Value repeats 16 times +@@: + movntdq [rdi], xmm0 ; rdi should be 16-byte aligned + add rdi, 16 + loop @B + mfence + movdqa xmm0, [rsp + 10h] ; restore xmm0 +@SetBytes: + mov ecx, edx ; high 32 bits of rcx are always zero + rep stosb + mov rax, r9 ; rax <- Return value + ret +InternalMemSetMem ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm new file mode 100644 index 0000000000..77b8cf43aa --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem16.asm @@ -0,0 +1,67 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; SetMem16.asm +; +; Abstract: +; +; SetMem16 function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemSetMem16 ( +; IN VOID *Buffer, +; IN UINTN Count, +; IN UINT16 Value +; ) +;------------------------------------------------------------------------------ +InternalMemSetMem16 PROC USES rdi + mov rdi, rcx + mov r9, rdi + xor rcx, rcx + sub rcx, rdi + and rcx, 15 + mov rax, r8 + jz @F + shr rcx, 1 + cmp rcx, rdx + cmova rcx, rdx + sub rdx, rcx + rep stosw +@@: + mov rcx, rdx + and edx, 7 + shr rcx, 3 + jz @SetWords + movd xmm0, eax + pshuflw xmm0, xmm0, 0 + movlhps xmm0, xmm0 +@@: + movntdq [rdi], xmm0 + add rdi, 16 + loop @B + mfence +@SetWords: + mov ecx, edx + rep stosw + mov rax, r9 + ret +InternalMemSetMem16 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm new file mode 100644 index 0000000000..eba29bb88d --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem32.asm @@ -0,0 +1,66 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; SetMem32.asm +; +; Abstract: +; +; SetMem32 function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemSetMem32 ( +; IN VOID *Buffer, +; IN UINTN Count, +; IN UINT8 Value +; ) +;------------------------------------------------------------------------------ +InternalMemSetMem32 PROC USES rdi + mov rdi, rcx + mov r9, rdi + xor rcx, rcx + sub rcx, rdi + and rcx, 15 + mov rax, r8 + jz @F + shr rcx, 2 + cmp rcx, rdx + cmova rcx, rdx + sub rdx, rcx + rep stosd +@@: + mov rcx, rdx + and edx, 3 + shr rcx, 2 + jz @SetDwords + movd xmm0, eax + pshufd xmm0, xmm0, 0 +@@: + movntdq [rdi], xmm0 + add rdi, 16 + loop @B + mfence +@SetDwords: + mov ecx, edx + rep stosd + mov rax, r9 + ret +InternalMemSetMem32 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm new file mode 100644 index 0000000000..a26b9412d4 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/SetMem64.asm @@ -0,0 +1,59 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; SetMem64.asm +; +; Abstract: +; +; SetMem64 function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemSetMem64 ( +; IN VOID *Buffer, +; IN UINTN Count, +; IN UINT64 Value +; ) +;------------------------------------------------------------------------------ +InternalMemSetMem64 PROC + mov rax, rcx ; rax <- Buffer + xchg rcx, rdx ; rcx <- Count & rdx <- Buffer + test dl, 8 + movd xmm0, r8 + jz @F + mov [rdx], r8 + add rdx, 8 + dec rcx +@@: + shr rcx, 1 + jz @SetQwords + movlhps xmm0, xmm0 +@@: + movntdq [rdx], xmm0 + lea rdx, [rdx + 16] + loop @B + mfence +@SetQwords: + jnc @F + mov [rdx], r8 +@@: + ret +InternalMemSetMem64 ENDP + + END diff --git a/MdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm b/MdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm new file mode 100644 index 0000000000..7eebd3a8ef --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm @@ -0,0 +1,63 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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 +; 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: +; +; ZeroMem.asm +; +; Abstract: +; +; ZeroMem function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemZeroMem ( +; IN VOID *Buffer, +; IN UINTN Count +; ) +;------------------------------------------------------------------------------ +InternalMemZeroMem PROC USES rdi + mov rdi, rcx + xor rcx, rcx + xor eax, eax + sub rcx, rdi + and rcx, 15 + mov r8, rdi + jz @F + cmp rcx, rdx + cmova rcx, rdx + sub rdx, rcx + rep stosb +@@: + mov rcx, rdx + and edx, 15 + shr rcx, 4 + jz @ZeroBytes + pxor xmm0, xmm0 +@@: + movntdq [rdi], xmm0 ; rdi should be 16-byte aligned + add rdi, 16 + loop @B + mfence +@ZeroBytes: + mov ecx, edx + rep stosb + mov rax, r8 + ret +InternalMemZeroMem ENDP + + END -- cgit v1.2.3