Add in the 1st version of ECP.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12
@@ -0,0 +1,74 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; VOID *
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; EFIAPI
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; EfiCommonLibCopyMem (
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; OUT 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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EfiCommonLibCopyMem PROC USES rsi rdi
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cmp rdx, rcx ; if Source == Destination, do nothing
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je @CopyMemDone
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cmp r8, 0 ; if Count == 0, do nothing
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je @CopyMemDone
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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 <- End 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
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cmp r9, rdi
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jae @CopyBackward ; Copy backward if overlapped
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@@:
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mov rcx, r8
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and r8, 7
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shr rcx, 3 ; rcx <- # of Qwords to copy
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jz @CopyBytes
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DB 49h, 0fh, 7eh, 0c2h ; movd r10, mm0 (Save mm0 in r10)
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@@:
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DB 0fh, 6fh, 06h ; movd mm0, [rsi]
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DB 48h, 0fh, 7eh, 07h ; movd [rdi], mm0
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add rsi, 8
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add rdi, 8
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loop @B
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DB 49h, 0fh, 6eh, 0c2h ; movd mm0, r10 (Restore mm0)
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jmp @CopyBytes
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@CopyBackward:
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mov rsi, r9 ; rsi <- End of Source
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lea rdi, [rdi + r8 - 1] ; rdi <- End of Destination
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std ; set direction flag
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@CopyBytes:
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mov rcx, r8
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rep movsb ; Copy bytes backward
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cld
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@CopyMemDone:
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ret
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EfiCommonLibCopyMem ENDP
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END
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@@ -0,0 +1,80 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; VOID
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; EfiCommonLibCopyMem (
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; OUT 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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EfiCommonLibCopyMem PROC USES rsi rdi
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cmp rdx, rcx ; if Source == Destination, do nothing
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je @CopyMemDone
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cmp r8, 0 ; if Count == 0, do nothing
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je @CopyMemDone
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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 <- End 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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@@:
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movdqu xmm0, [rsi] ; rsi may not be 16-byte aligned
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movdqa [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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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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@CopyMemDone:
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ret
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EfiCommonLibCopyMem ENDP
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END
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@@ -0,0 +1,60 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; SetMem.asm
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;
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; Abstract:
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;
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; SetMem 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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; VOID *
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; EFIAPI
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; EfiCommonLibSetMem (
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; OUT VOID *Buffer,
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; IN UINTN Size,
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; IN UINT8 Value
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; );
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;------------------------------------------------------------------------------
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EfiCommonLibSetMem PROC USES rdi
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cmp rdx, 0 ; if Size == 0, do nothing
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je @SetDone
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mov rax, r8
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mov ah, al
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DB 48h, 0fh, 6eh, 0c0h ; movd mm0, rax
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mov r8, rcx
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mov rdi, r8 ; rdi <- Buffer
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mov rcx, rdx
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and edx, 7
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shr rcx, 3
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jz @SetBytes
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DB 0fh, 70h, 0C0h, 00h ; pshufw mm0, mm0, 0h
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@@:
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DB 48h, 0fh, 7eh, 07h ; movd [rdi], mm0
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add rdi, 8
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loop @B
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@SetBytes:
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mov ecx, edx
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rep stosb
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mov rax, r8
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@SetDone:
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ret
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EfiCommonLibSetMem ENDP
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END
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@@ -0,0 +1,67 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; SetMem.asm
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;
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; Abstract:
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;
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; SetMem 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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; VOID
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; EfiCommonLibSetMem (
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; OUT VOID *Buffer,
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; IN UINTN Size,
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; IN UINT8 Value
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; );
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;------------------------------------------------------------------------------
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EfiCommonLibSetMem PROC USES rdi
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cmp rdx, 0 ; if Size == 0, do nothing
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je @SetDone
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mov rdi, rcx ; rdi <- Buffer
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mov al, r8b ; al <- Value
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xor rcx, rcx
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sub rcx, rdi
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and rcx, 15 ; rcx + rdi aligns on 16-byte boundary
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jz @F
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cmp rcx, rdx
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cmova rcx, rdx
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sub rdx, rcx
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rep stosb
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@@:
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mov rcx, rdx
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and rdx, 15
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shr rcx, 4
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jz @SetBytes
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mov ah, al ; ax <- Value repeats twice
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movd xmm0, eax ; xmm0[0..16] <- Value repeats twice
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pshuflw xmm0, xmm0, 0 ; xmm0[0..63] <- Value repeats 8 times
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movlhps xmm0, xmm0 ; xmm0 <- Value repeats 16 times
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@@:
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movdqa [rdi], xmm0 ; rdi should be 16-byte aligned
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add rdi, 16
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loop @B
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@SetBytes:
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mov ecx, edx ; high 32 bits of rcx are always zero
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rep stosb
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@SetDone:
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ret
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EfiCommonLibSetMem ENDP
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END
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@@ -0,0 +1,53 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; ZeroMem.asm
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;
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; Abstract:
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;
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; ZeroMem 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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; VOID *
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; EfiCommonLibZeroMem (
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; IN VOID *Buffer,
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; IN UINTN Size
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; );
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;------------------------------------------------------------------------------
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EfiCommonLibZeroMem PROC USES rdi
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mov rdi, rcx
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mov rcx, rdx
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mov r8, rdi
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and edx, 7
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shr rcx, 3
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jz @ZeroBytes
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DB 0fh, 0efh, 0c0h ; pxor mm0, mm0
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@@:
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DB 48h, 0fh, 7eh, 07h ; movd [rdi], mm0
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add rdi, 8
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loop @B
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@ZeroBytes:
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xor eax, eax
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mov ecx, edx
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rep stosb
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mov rax, r8
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ret
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EfiCommonLibZeroMem ENDP
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END
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@@ -0,0 +1,60 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2007, Intel Corporation
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; All rights reserved. This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; 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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; ZeroMem.asm
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;
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; Abstract:
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;
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; ZeroMem 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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; VOID
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; EfiCommonLibZeroMem (
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; IN VOID *Buffer,
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; IN UINTN Size
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; );
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;------------------------------------------------------------------------------
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EfiCommonLibZeroMem PROC USES rdi
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mov rdi, rcx
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xor rcx, rcx
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xor eax, eax
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sub rcx, rdi
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and rcx, 15
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jz @F
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cmp rcx, rdx
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cmova rcx, rdx
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sub rdx, rcx
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rep stosb
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@@:
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mov rcx, rdx
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and edx, 15
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shr rcx, 4
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jz @ZeroBytes
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pxor xmm0, xmm0
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@@:
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movdqa [rdi], xmm0 ; rdi should be 16-byte aligned
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add rdi, 16
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loop @B
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@ZeroBytes:
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mov ecx, edx
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rep stosb
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ret
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EfiCommonLibZeroMem ENDP
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END
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Reference in New Issue
Block a user