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-rw-r--r--OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S72
1 files changed, 0 insertions, 72 deletions
diff --git a/OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S b/OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S
deleted file mode 100644
index c4ecdc70eb..0000000000
--- a/OldMdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S
+++ /dev/null
@@ -1,72 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006, Intel Corporation
-# All rights reserved. This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# CopyMem.asm
-#
-# Abstract:
-#
-# CopyMem function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-
-#------------------------------------------------------------------------------
-# VOID *
-# EFIAPI
-# InternalMemCopyMem (
-# OUT VOID *DestinationBuffer,
-# IN CONST VOID *SourceBuffer,
-# IN UINTN Length
-# );
-#------------------------------------------------------------------------------
-.global _InternalMemCopyMem;
-_InternalMemCopyMem:
- push %rsi
- push %rdi
- mov %rdi, %rsi
- mov %rcx, %rdi
- lea -1(%r8,%rsi,1),%r9
- cmp %rdi, %rsi
- mov %rdi, %rax
- jae L1
- cmp %rdi, %r9
- jae LCopyBackward # Copy backward if overlapped
-L1:
- mov %r8, %rcx
- and $7, %r8
- shr $3, %rcx
- jz LCopyBytes
- movd %mm0, %r10 # (Save mm0 in r10)
-L2:
- movd (%rsi), %mm0
- movntq %mm0, (%rdi)
- add $8, %rsi
- add $8, %rdi
- loop L2
- mfence
- movd %r10, %mm0 #(Restore mm0)
- jmp LCopyBytes
-LCopyBackward:
- mov %r9, %rsi
- lea -1(%r8,%rdi,1),%rdi
- std # set direction flag
-LCopyBytes:
- mov %r8, %rcx
- rep
- movsb # Copy bytes backward
- cld
- pop %rdi
- pop %rsi
- ret