diff options
author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-11-03 09:25:10 +0000 |
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committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-11-03 09:25:10 +0000 |
commit | b1ff428c96518b7f4810eff4688d60ac7c65fba5 (patch) | |
tree | 026e335affbc22d320ed9088afcec644e85d338f /MdePkg/Library/BaseMemoryLibSse2/X64 | |
parent | db835e01d3e5d2f09c12d73d749c37fcc7c20291 (diff) | |
download | edk2-platforms-b1ff428c96518b7f4810eff4688d60ac7c65fba5.tar.xz |
Update to use DOS format
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6360 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/X64')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.S | 120 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.S | 168 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.S | 114 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.S | 114 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.S | 114 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.S | 114 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.S | 146 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.S | 142 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S | 140 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S | 122 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.S | 132 |
11 files changed, 713 insertions, 713 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.S b/MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.S index 5580d6237a..61343d307d 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.S @@ -1,60 +1,60 @@ -# -# ConvertAsm.py: Automatically generated from CompareMem.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# CompareMem function -# -# Notes: -# -# The following BaseMemoryLib instances contain the same copy of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# BaseMemoryLibOptDxe -# BaseMemoryLibOptPei -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# INTN -# EFIAPI -# InternalMemCompareMem ( -# IN CONST VOID *DestinationBuffer, -# IN CONST VOID *SourceBuffer, -# IN UINTN Length -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemCompareMem) -ASM_PFX(InternalMemCompareMem): - push rsi - push 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 - pop rdi - pop rsi - ret - +#
+# ConvertAsm.py: Automatically generated from CompareMem.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# CompareMem function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances contain the same copy of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+# BaseMemoryLibOptDxe
+# BaseMemoryLibOptPei
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# INTN
+# EFIAPI
+# InternalMemCompareMem (
+# IN CONST VOID *DestinationBuffer,
+# IN CONST VOID *SourceBuffer,
+# IN UINTN Length
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemCompareMem)
+ASM_PFX(InternalMemCompareMem):
+ push rsi
+ push 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
+ pop rdi
+ pop rsi
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.S b/MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.S index 35db797677..553f53957e 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.S @@ -1,84 +1,84 @@ -# -# ConvertAsm.py: Automatically generated from CopyMem.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# CopyMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemCopyMem ( -# IN VOID *Destination, -# IN VOID *Source, -# IN UINTN Count -# ) -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl 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 <- Last byte of Source - cmp rsi, rdi - mov rax, rdi # rax <- Destination as return value - jae L0 # Copy forward if Source > Destination - cmp r9, rdi # Overlapped? - jae L_CopyBackward # Copy backward if overlapped -L0: - xor rcx, rcx - sub rcx, rdi # rcx <- -rdi - and rcx, 15 # rcx + rsi should be 16 bytes aligned - jz L1 # skip if rcx == 0 - cmp rcx, r8 - cmova rcx, r8 - sub r8, rcx - rep movsb -L1: - mov rcx, r8 - and r8, 15 - shr rcx, 4 # rcx <- # of DQwords to copy - jz L_CopyBytes - movdqa [rsp + 0x18], xmm0 # save xmm0 on stack -L2: - 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 L2 - mfence - movdqa xmm0, [rsp + 0x18] # restore xmm0 - jmp L_CopyBytes # copy remaining bytes -L_CopyBackward: - mov rsi, r9 # rsi <- Last byte of Source - lea rdi, [rdi + r8 - 1] # rdi <- Last byte of Destination - std -L_CopyBytes: - mov rcx, r8 - rep movsb - cld - pop rdi - pop rsi - ret +#
+# ConvertAsm.py: Automatically generated from CopyMem.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# CopyMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemCopyMem (
+# IN VOID *Destination,
+# IN VOID *Source,
+# IN UINTN Count
+# )
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl 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 <- Last byte of Source
+ cmp rsi, rdi
+ mov rax, rdi # rax <- Destination as return value
+ jae L0 # Copy forward if Source > Destination
+ cmp r9, rdi # Overlapped?
+ jae L_CopyBackward # Copy backward if overlapped
+L0:
+ xor rcx, rcx
+ sub rcx, rdi # rcx <- -rdi
+ and rcx, 15 # rcx + rsi should be 16 bytes aligned
+ jz L1 # skip if rcx == 0
+ cmp rcx, r8
+ cmova rcx, r8
+ sub r8, rcx
+ rep movsb
+L1:
+ mov rcx, r8
+ and r8, 15
+ shr rcx, 4 # rcx <- # of DQwords to copy
+ jz L_CopyBytes
+ movdqa [rsp + 0x18], xmm0 # save xmm0 on stack
+L2:
+ 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 L2
+ mfence
+ movdqa xmm0, [rsp + 0x18] # restore xmm0
+ jmp L_CopyBytes # copy remaining bytes
+L_CopyBackward:
+ mov rsi, r9 # rsi <- Last byte of Source
+ lea rdi, [rdi + r8 - 1] # rdi <- Last byte of Destination
+ std
+L_CopyBytes:
+ mov rcx, r8
+ rep movsb
+ cld
+ pop rdi
+ pop rsi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.S b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.S index 9a94f5d936..b777aac426 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.S @@ -1,57 +1,57 @@ -# -# ConvertAsm.py: Automatically generated from ScanMem16.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# ScanMem16 function -# -# Notes: -# -# The following BaseMemoryLib instances contain the same copy of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# BaseMemoryLibOptDxe -# BaseMemoryLibOptPei -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem16 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT16 Value -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemScanMem16) -ASM_PFX(InternalMemScanMem16): - push rdi - mov rdi, rcx - mov rax, r8 - mov rcx, rdx - repne scasw - lea rax, [rdi - 2] - cmovnz rax, rcx - pop rdi - ret - +#
+# ConvertAsm.py: Automatically generated from ScanMem16.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# ScanMem16 function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances contain the same copy of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+# BaseMemoryLibOptDxe
+# BaseMemoryLibOptPei
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem16 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT16 Value
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemScanMem16)
+ASM_PFX(InternalMemScanMem16):
+ push rdi
+ mov rdi, rcx
+ mov rax, r8
+ mov rcx, rdx
+ repne scasw
+ lea rax, [rdi - 2]
+ cmovnz rax, rcx
+ pop rdi
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.S b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.S index 86a6503fb3..8f1804ce06 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.S @@ -1,57 +1,57 @@ -# -# ConvertAsm.py: Automatically generated from ScanMem32.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# ScanMem32 function -# -# Notes: -# -# The following BaseMemoryLib instances contain the same copy of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# BaseMemoryLibOptDxe -# BaseMemoryLibOptPei -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem32 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT32 Value -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl 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 - ret - +#
+# ConvertAsm.py: Automatically generated from ScanMem32.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# ScanMem32 function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances contain the same copy of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+# BaseMemoryLibOptDxe
+# BaseMemoryLibOptPei
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem32 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT32 Value
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl 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
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.S b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.S index f05f7b2b2b..f2c4e1719a 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.S @@ -1,57 +1,57 @@ -# -# ConvertAsm.py: Automatically generated from ScanMem64.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# ScanMem64 function -# -# Notes: -# -# The following BaseMemoryLib instances contain the same copy of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# BaseMemoryLibOptDxe -# BaseMemoryLibOptPei -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem64 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT64 Value -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemScanMem64) -ASM_PFX(InternalMemScanMem64): - push rdi - mov rdi, rcx - mov rax, r8 - mov rcx, rdx - repne scasq - lea rax, [rdi - 8] - cmovnz rax, rcx - pop rdi - ret - +#
+# ConvertAsm.py: Automatically generated from ScanMem64.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# ScanMem64 function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances contain the same copy of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+# BaseMemoryLibOptDxe
+# BaseMemoryLibOptPei
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem64 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT64 Value
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemScanMem64)
+ASM_PFX(InternalMemScanMem64):
+ push rdi
+ mov rdi, rcx
+ mov rax, r8
+ mov rcx, rdx
+ repne scasq
+ lea rax, [rdi - 8]
+ cmovnz rax, rcx
+ pop rdi
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.S b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.S index 1d8b4e1b23..1bd944c791 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.S @@ -1,57 +1,57 @@ -# -# ConvertAsm.py: Automatically generated from ScanMem8.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# ScanMem8 function -# -# Notes: -# -# The following BaseMemoryLib instances contain the same copy of this file: -# -# BaseMemoryLibRepStr -# BaseMemoryLibMmx -# BaseMemoryLibSse2 -# BaseMemoryLibOptDxe -# BaseMemoryLibOptPei -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# CONST VOID * -# EFIAPI -# InternalMemScanMem8 ( -# IN CONST VOID *Buffer, -# IN UINTN Length, -# IN UINT8 Value -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemScanMem8) -ASM_PFX(InternalMemScanMem8): - push 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 - pop rdi - ret - +#
+# ConvertAsm.py: Automatically generated from ScanMem8.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# ScanMem8 function
+#
+# Notes:
+#
+# The following BaseMemoryLib instances contain the same copy of this file:
+#
+# BaseMemoryLibRepStr
+# BaseMemoryLibMmx
+# BaseMemoryLibSse2
+# BaseMemoryLibOptDxe
+# BaseMemoryLibOptPei
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem8 (
+# IN CONST VOID *Buffer,
+# IN UINTN Length,
+# IN UINT8 Value
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemScanMem8)
+ASM_PFX(InternalMemScanMem8):
+ push 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
+ pop rdi
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.S index 5d915d4a08..4410082078 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.S @@ -1,73 +1,73 @@ -# -# ConvertAsm.py: Automatically generated from SetMem.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# SetMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT8 Value -# ) -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemSetMem) -ASM_PFX(InternalMemSetMem): - push 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 L0 - cmp rcx, rdx - cmova rcx, rdx - sub rdx, rcx - rep stosb -L0: - mov rcx, rdx - and rdx, 15 - shr rcx, 4 - jz L_SetBytes - mov ah, al # ax <- Value repeats twice - movdqa [rsp + 0x10], 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 -L1: - movntdq [rdi], xmm0 # rdi should be 16-byte aligned - add rdi, 16 - loop L1 - mfence - movdqa xmm0, [rsp + 0x10] # restore xmm0 -L_SetBytes: - mov ecx, edx # high 32 bits of rcx are always zero - rep stosb - mov rax, r9 # rax <- Return value - pop rdi - ret +#
+# ConvertAsm.py: Automatically generated from SetMem.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# SetMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemSetMem (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT8 Value
+# )
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemSetMem)
+ASM_PFX(InternalMemSetMem):
+ push 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 L0
+ cmp rcx, rdx
+ cmova rcx, rdx
+ sub rdx, rcx
+ rep stosb
+L0:
+ mov rcx, rdx
+ and rdx, 15
+ shr rcx, 4
+ jz L_SetBytes
+ mov ah, al # ax <- Value repeats twice
+ movdqa [rsp + 0x10], 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
+L1:
+ movntdq [rdi], xmm0 # rdi should be 16-byte aligned
+ add rdi, 16
+ loop L1
+ mfence
+ movdqa xmm0, [rsp + 0x10] # restore xmm0
+L_SetBytes:
+ mov ecx, edx # high 32 bits of rcx are always zero
+ rep stosb
+ mov rax, r9 # rax <- Return value
+ pop rdi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.S index 354222c1a9..8cf0710c90 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.S @@ -1,71 +1,71 @@ -# -# ConvertAsm.py: Automatically generated from SetMem16.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# SetMem16 function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem16 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT16 Value -# ) -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemSetMem16) -ASM_PFX(InternalMemSetMem16): - push rdi - mov rdi, rcx - mov r9, rdi - xor rcx, rcx - sub rcx, rdi - and rcx, 15 - mov rax, r8 - jz L0 - shr rcx, 1 - cmp rcx, rdx - cmova rcx, rdx - sub rdx, rcx - rep stosw -L0: - mov rcx, rdx - and edx, 7 - shr rcx, 3 - jz L_SetWords - movd xmm0, eax - pshuflw xmm0, xmm0, 0 - movlhps xmm0, xmm0 -L1: - movntdq [rdi], xmm0 - add rdi, 16 - loop L1 - mfence -L_SetWords: - mov ecx, edx - rep stosw - mov rax, r9 - pop rdi - ret +#
+# ConvertAsm.py: Automatically generated from SetMem16.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# SetMem16 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemSetMem16 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT16 Value
+# )
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemSetMem16)
+ASM_PFX(InternalMemSetMem16):
+ push rdi
+ mov rdi, rcx
+ mov r9, rdi
+ xor rcx, rcx
+ sub rcx, rdi
+ and rcx, 15
+ mov rax, r8
+ jz L0
+ shr rcx, 1
+ cmp rcx, rdx
+ cmova rcx, rdx
+ sub rdx, rcx
+ rep stosw
+L0:
+ mov rcx, rdx
+ and edx, 7
+ shr rcx, 3
+ jz L_SetWords
+ movd xmm0, eax
+ pshuflw xmm0, xmm0, 0
+ movlhps xmm0, xmm0
+L1:
+ movntdq [rdi], xmm0
+ add rdi, 16
+ loop L1
+ mfence
+L_SetWords:
+ mov ecx, edx
+ rep stosw
+ mov rax, r9
+ pop rdi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S index 2ace79ad96..c8f4065ec1 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S @@ -1,70 +1,70 @@ -# -# ConvertAsm.py: Automatically generated from SetMem32.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# SetMem32 function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem32 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT32 Value -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemSetMem32) -ASM_PFX(InternalMemSetMem32): - push rdi - mov rdi, rcx - mov r9, rdi - xor rcx, rcx - sub rcx, rdi - and rcx, 15 - mov rax, r8 - jz L0 - shr rcx, 2 - cmp rcx, rdx - cmova rcx, rdx - sub rdx, rcx - rep stosd -L0: - mov rcx, rdx - and edx, 3 - shr rcx, 2 - jz L_SetDwords - movd xmm0, eax - pshufd xmm0, xmm0, 0 -L1: - movntdq [rdi], xmm0 - add rdi, 16 - loop L1 - mfence -L_SetDwords: - mov ecx, edx - rep stosd - mov rax, r9 - pop rdi - ret +#
+# ConvertAsm.py: Automatically generated from SetMem32.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# SetMem32 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemSetMem32 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT32 Value
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemSetMem32)
+ASM_PFX(InternalMemSetMem32):
+ push rdi
+ mov rdi, rcx
+ mov r9, rdi
+ xor rcx, rcx
+ sub rcx, rdi
+ and rcx, 15
+ mov rax, r8
+ jz L0
+ shr rcx, 2
+ cmp rcx, rdx
+ cmova rcx, rdx
+ sub rdx, rcx
+ rep stosd
+L0:
+ mov rcx, rdx
+ and edx, 3
+ shr rcx, 2
+ jz L_SetDwords
+ movd xmm0, eax
+ pshufd xmm0, xmm0, 0
+L1:
+ movntdq [rdi], xmm0
+ add rdi, 16
+ loop L1
+ mfence
+L_SetDwords:
+ mov ecx, edx
+ rep stosd
+ mov rax, r9
+ pop rdi
+ ret
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S index 870f8c0ee9..32dce91da8 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S @@ -1,61 +1,61 @@ -# -# ConvertAsm.py: Automatically generated from SetMem64.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# SetMem64 function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# InternalMemSetMem64 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT64 Value -# ) -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemSetMem64) -ASM_PFX(InternalMemSetMem64): - mov rax, rcx # rax <- Buffer - xchg rcx, rdx # rcx <- Count & rdx <- Buffer - test dl, 8 - movq xmm0, r8 - jz L0 - mov [rdx], r8 - add rdx, 8 - dec rcx -L0: - shr rcx, 1 - jz L_SetQwords - movlhps xmm0, xmm0 -L1: - movntdq [rdx], xmm0 - lea rdx, [rdx + 16] - loop L1 - mfence -L_SetQwords: - jnc L2 - mov [rdx], r8 -L2: - ret - +#
+# ConvertAsm.py: Automatically generated from SetMem64.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# SetMem64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemSetMem64 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT64 Value
+# )
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemSetMem64)
+ASM_PFX(InternalMemSetMem64):
+ mov rax, rcx # rax <- Buffer
+ xchg rcx, rdx # rcx <- Count & rdx <- Buffer
+ test dl, 8
+ movq xmm0, r8
+ jz L0
+ mov [rdx], r8
+ add rdx, 8
+ dec rcx
+L0:
+ shr rcx, 1
+ jz L_SetQwords
+ movlhps xmm0, xmm0
+L1:
+ movntdq [rdx], xmm0
+ lea rdx, [rdx + 16]
+ loop L1
+ mfence
+L_SetQwords:
+ jnc L2
+ mov [rdx], r8
+L2:
+ ret
+
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.S b/MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.S index f152d98a39..4f077943ba 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.S @@ -1,66 +1,66 @@ -# -# ConvertAsm.py: Automatically generated from ZeroMem.asm -# -#------------------------------------------------------------------------------ -# -# 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.S -# -# Abstract: -# -# ZeroMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# VOID * -# InternalMemZeroMem ( -# IN VOID *Buffer, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -.intel_syntax noprefix -.globl ASM_PFX(InternalMemZeroMem) -ASM_PFX(InternalMemZeroMem): - push rdi - mov rdi, rcx - xor rcx, rcx - xor eax, eax - sub rcx, rdi - and rcx, 15 - mov r8, rdi - jz L0 - cmp rcx, rdx - cmova rcx, rdx - sub rdx, rcx - rep stosb -L0: - mov rcx, rdx - and edx, 15 - shr rcx, 4 - jz L_ZeroBytes - pxor xmm0, xmm0 -L1: - movntdq [rdi], xmm0 # rdi should be 16-byte aligned - add rdi, 16 - loop L1 - mfence -L_ZeroBytes: - mov ecx, edx - rep stosb - mov rax, r8 - pop rdi - ret +#
+# ConvertAsm.py: Automatically generated from ZeroMem.asm
+#
+#------------------------------------------------------------------------------
+#
+# 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.S
+#
+# Abstract:
+#
+# ZeroMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID *
+# InternalMemZeroMem (
+# IN VOID *Buffer,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+.intel_syntax noprefix
+.globl ASM_PFX(InternalMemZeroMem)
+ASM_PFX(InternalMemZeroMem):
+ push rdi
+ mov rdi, rcx
+ xor rcx, rcx
+ xor eax, eax
+ sub rcx, rdi
+ and rcx, 15
+ mov r8, rdi
+ jz L0
+ cmp rcx, rdx
+ cmova rcx, rdx
+ sub rdx, rcx
+ rep stosb
+L0:
+ mov rcx, rdx
+ and edx, 15
+ shr rcx, 4
+ jz L_ZeroBytes
+ pxor xmm0, xmm0
+L1:
+ movntdq [rdi], xmm0 # rdi should be 16-byte aligned
+ add rdi, 16
+ loop L1
+ mfence
+L_ZeroBytes:
+ mov ecx, edx
+ rep stosb
+ mov rax, r8
+ pop rdi
+ ret
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