diff options
Diffstat (limited to 'OldMdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S')
-rw-r--r-- | OldMdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S b/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S deleted file mode 100644 index ddbcbaf1b1..0000000000 --- a/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/CopyMem.S +++ /dev/null @@ -1,85 +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: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemCopyMem - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemCopyMem ( -# IN VOID *Destination, -# IN VOID *Source, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -_InternalMemCopyMem: - push %esi - push %edi - movl 16(%esp), %esi # esi <- Source - movl 12(%esp), %edi # edi <- Destination - movl 20(%esp), %edx # edx <- Count - leal -1(%esi,%edx,), %eax # eax <- End of Source - cmpl %edi, %esi - jae L0 - cmpl %edi, %eax # Overlapped? - jae L_CopyBackward # Copy backward if overlapped -L0: - xorl %ecx, %ecx - subl %edi, %ecx - andl $15, %ecx # ecx + edi aligns on 16-byte boundary - jz L1 - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx # edx <- remaining bytes to copy - rep - movsb -L1: - movl %edx, %ecx - andl $15, %edx - shrl $4, %ecx # ecx <- # of DQwords to copy - jz L_CopyBytes - addl $-16, %esp - movdqu %xmm0, (%esp) -L2: - movdqu (%esi), %xmm0 - movntdq %xmm0, (%edi) - addl $16, %esi - addl $16, %edi - loop L2 - mfence - movdqu (%esp),%xmm0 - addl $16, %esp # stack cleanup - jmp L_CopyBytes -L_CopyBackward: - movl %eax, %esi # esi <- Last byte in Source - leal -1(%edi,%edx,), %edi # edi <- Last byte in Destination - std -L_CopyBytes: - movl %edx, %ecx - rep - movsb - cld - movl 12(%esp), %eax # eax <- Destination as return value - pop %edi - pop %esi - ret |