Rename
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5984 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
54
MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.asm
Normal file
54
MdePkg/Library/BaseMemoryLibSse2/X64/CompareMem.asm
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@@ -0,0 +1,54 @@
|
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;------------------------------------------------------------------------------
|
||||
;
|
||||
; 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.
|
||||
;
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; Module Name:
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;
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; CompareMem.Asm
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;
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; Abstract:
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;
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; CompareMem function
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;
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; Notes:
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;
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; The following BaseMemoryLib instances contain the same copy of this file:
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;
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; BaseMemoryLibRepStr
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; BaseMemoryLibMmx
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; BaseMemoryLibSse2
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; BaseMemoryLibOptDxe
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; BaseMemoryLibOptPei
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;
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;------------------------------------------------------------------------------
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.code
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;------------------------------------------------------------------------------
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; INTN
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; EFIAPI
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; InternalMemCompareMem (
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; IN CONST VOID *DestinationBuffer,
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; IN CONST VOID *SourceBuffer,
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; IN UINTN Length
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; );
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;------------------------------------------------------------------------------
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InternalMemCompareMem PROC USES rsi rdi
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mov rsi, rcx
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mov rdi, rdx
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mov rcx, r8
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repe cmpsb
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movzx rax, byte ptr [rsi - 1]
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movzx rdx, byte ptr [rdi - 1]
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sub rax, rdx
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ret
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InternalMemCompareMem ENDP
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END
|
79
MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.asm
Normal file
79
MdePkg/Library/BaseMemoryLibSse2/X64/CopyMem.asm
Normal file
@@ -0,0 +1,79 @@
|
||||
;------------------------------------------------------------------------------
|
||||
;
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||||
; 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.
|
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;
|
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; Module Name:
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;
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; CopyMem.asm
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;
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; Abstract:
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;
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; CopyMem function
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;
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; Notes:
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;
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||||
;------------------------------------------------------------------------------
|
||||
|
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.code
|
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|
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;------------------------------------------------------------------------------
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; VOID *
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; EFIAPI
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; InternalMemCopyMem (
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; IN VOID *Destination,
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; IN VOID *Source,
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||||
; IN UINTN Count
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||||
; );
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;------------------------------------------------------------------------------
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InternalMemCopyMem PROC USES rsi rdi
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mov rsi, rdx ; rsi <- Source
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mov rdi, rcx ; rdi <- Destination
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lea r9, [rsi + r8 - 1] ; r9 <- Last byte of Source
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cmp rsi, rdi
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mov rax, rdi ; rax <- Destination as return value
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jae @F ; Copy forward if Source > Destination
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cmp r9, rdi ; Overlapped?
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jae @CopyBackward ; Copy backward if overlapped
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@@:
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xor rcx, rcx
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sub rcx, rdi ; rcx <- -rdi
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and rcx, 15 ; rcx + rsi should be 16 bytes aligned
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jz @F ; skip if rcx == 0
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cmp rcx, r8
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cmova rcx, r8
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sub r8, rcx
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rep movsb
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@@:
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mov rcx, r8
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and r8, 15
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shr rcx, 4 ; rcx <- # of DQwords to copy
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jz @CopyBytes
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movdqa [rsp + 18h], xmm0 ; save xmm0 on stack
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@@:
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movdqu xmm0, [rsi] ; rsi may not be 16-byte aligned
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movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
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add rsi, 16
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add rdi, 16
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loop @B
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mfence
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movdqa xmm0, [rsp + 18h] ; restore xmm0
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jmp @CopyBytes ; copy remaining bytes
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@CopyBackward:
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mov rsi, r9 ; rsi <- Last byte of Source
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lea rdi, [rdi + r8 - 1] ; rdi <- Last byte of Destination
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std
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@CopyBytes:
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mov rcx, r8
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rep movsb
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cld
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ret
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InternalMemCopyMem ENDP
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END
|
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.asm
Normal file
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem16.asm
Normal file
@@ -0,0 +1,53 @@
|
||||
;------------------------------------------------------------------------------
|
||||
;
|
||||
; 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:
|
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;
|
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; ScanMem16.Asm
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;
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; Abstract:
|
||||
;
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; ScanMem16 function
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;
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; Notes:
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;
|
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; The following BaseMemoryLib instances contain the same copy of this file:
|
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;
|
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; BaseMemoryLibRepStr
|
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; BaseMemoryLibMmx
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; BaseMemoryLibSse2
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; BaseMemoryLibOptDxe
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; BaseMemoryLibOptPei
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;
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;------------------------------------------------------------------------------
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|
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.code
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|
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;------------------------------------------------------------------------------
|
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; CONST VOID *
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||||
; EFIAPI
|
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; InternalMemScanMem16 (
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; IN CONST VOID *Buffer,
|
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; IN UINTN Length,
|
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; IN UINT16 Value
|
||||
; );
|
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;------------------------------------------------------------------------------
|
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InternalMemScanMem16 PROC USES rdi
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mov rdi, rcx
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mov rax, r8
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mov rcx, rdx
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repne scasw
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lea rax, [rdi - 2]
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cmovnz rax, rcx
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ret
|
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InternalMemScanMem16 ENDP
|
||||
|
||||
END
|
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.asm
Normal file
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem32.asm
Normal file
@@ -0,0 +1,53 @@
|
||||
;------------------------------------------------------------------------------
|
||||
;
|
||||
; 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 contain the same copy of this file:
|
||||
;
|
||||
; BaseMemoryLibRepStr
|
||||
; BaseMemoryLibMmx
|
||||
; BaseMemoryLibSse2
|
||||
; BaseMemoryLibOptDxe
|
||||
; BaseMemoryLibOptPei
|
||||
;
|
||||
;------------------------------------------------------------------------------
|
||||
|
||||
.code
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; CONST VOID *
|
||||
; EFIAPI
|
||||
; InternalMemScanMem32 (
|
||||
; IN CONST VOID *Buffer,
|
||||
; IN UINTN Length,
|
||||
; IN UINT32 Value
|
||||
; );
|
||||
;------------------------------------------------------------------------------
|
||||
InternalMemScanMem32 PROC USES rdi
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mov rdi, rcx
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mov rax, r8
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mov rcx, rdx
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repne scasd
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lea rax, [rdi - 4]
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cmovnz rax, rcx
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ret
|
||||
InternalMemScanMem32 ENDP
|
||||
|
||||
END
|
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.asm
Normal file
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem64.asm
Normal file
@@ -0,0 +1,53 @@
|
||||
;------------------------------------------------------------------------------
|
||||
;
|
||||
; 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 contain the same copy of this file:
|
||||
;
|
||||
; BaseMemoryLibRepStr
|
||||
; BaseMemoryLibMmx
|
||||
; BaseMemoryLibSse2
|
||||
; BaseMemoryLibOptDxe
|
||||
; BaseMemoryLibOptPei
|
||||
;
|
||||
;------------------------------------------------------------------------------
|
||||
|
||||
.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
|
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mov rcx, rdx
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repne scasq
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lea rax, [rdi - 8]
|
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cmovnz rax, rcx
|
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ret
|
||||
InternalMemScanMem64 ENDP
|
||||
|
||||
END
|
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.asm
Normal file
53
MdePkg/Library/BaseMemoryLibSse2/X64/ScanMem8.asm
Normal file
@@ -0,0 +1,53 @@
|
||||
;------------------------------------------------------------------------------
|
||||
;
|
||||
; 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 contain the same copy of this file:
|
||||
;
|
||||
; BaseMemoryLibRepStr
|
||||
; BaseMemoryLibMmx
|
||||
; BaseMemoryLibSse2
|
||||
; BaseMemoryLibOptDxe
|
||||
; BaseMemoryLibOptPei
|
||||
;
|
||||
;------------------------------------------------------------------------------
|
||||
|
||||
.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
|
69
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.asm
Normal file
69
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem.asm
Normal file
@@ -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
|
67
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.asm
Normal file
67
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem16.asm
Normal file
@@ -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
|
66
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.asm
Normal file
66
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.asm
Normal file
@@ -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
|
59
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.asm
Normal file
59
MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.asm
Normal file
@@ -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
|
63
MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.asm
Normal file
63
MdePkg/Library/BaseMemoryLibSse2/X64/ZeroMem.asm
Normal file
@@ -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
|
Reference in New Issue
Block a user