diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S b/MdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S deleted file mode 100644 index 1d87e2d63a..0000000000 --- a/MdePkg/Library/BaseMemoryLibMmx/X64/CopyMem.S +++ /dev/null @@ -1,74 +0,0 @@ -#
-# ConvertAsm.py: Automatically generated from CopyMem.asm
-#
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
-# 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
-# )
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalMemCopyMem)
-ASM_PFX(InternalMemCopyMem):
- pushq %rsi
- pushq %rdi
- movq %rdx, %rsi # rsi <- Source
- movq %rcx, %rdi # rdi <- Destination
- leaq -1(%rsi, %r8,), %r9 # r9 <- End of Source
- cmpq %rdi, %rsi
- movq %rdi, %rax # rax <- Destination as return value
- jae L0
- cmpq %rdi, %r9
- jae L_CopyBackward # Copy backward if overlapped
-L0:
- movq %r8, %rcx
- andq $7, %r8
- shrq $3, %rcx # rcx <- # of Qwords to copy
- jz L_CopyBytes
- movd %mm0, %r10 # (Save mm0 in r10)
-L1:
- movq (%rsi), %mm0
- movntq %mm0, (%rdi)
- addq $8, %rsi
- addq $8, %rdi
- loop L1
- mfence
- movd %r10, %mm0 # (Restore mm0)
- jmp L_CopyBytes
-L_CopyBackward:
- movq %r9, %rsi # rsi <- End of Source
- leaq -1(%rdi, %r8,), %rdi # rdi <- End of Destination
- std # set direction flag
-L_CopyBytes:
- movq %r8, %rcx
- rep movsb # Copy bytes backward
- cld
- popq %rdi
- popq %rsi
- ret
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