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MdePkg BaseMemoryLibRepStr: Convert Ia32/CopyMem.asm to NASM 

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/CopyMem.asm to Ia32/CopyMem.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Jordan Justen 2016-05-30 18:52:11 -07:00 committed by Liming Gao
parent f951b3c2cc
commit 170f7936d8
2 changed files with 66 additions and 0 deletions
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2
MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf
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@ -66,6 +66,7 @@
Ia32/SetMem16.S
Ia32/SetMem.nasm
Ia32/SetMem.S
Ia32/CopyMem.nasm
Ia32/CopyMem.S
Ia32/ScanMem64.nasm
Ia32/ScanMem64.asm
@ -87,6 +88,7 @@
Ia32/SetMem16.asm
Ia32/SetMem.nasm
Ia32/SetMem.asm
Ia32/CopyMem.nasm
Ia32/CopyMem.asm
[Sources.X64]

64
MdePkg/Library/BaseMemoryLibRepStr/Ia32/CopyMem.nasm Normal file
View File

@ -0,0 +1,64 @@
;------------------------------------------------------------------------------
;
; Copyright (c) 2006, 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.Asm
;
; Abstract:
;
; CopyMem function
;
; Notes:
;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
; VOID *
; InternalMemCopyMem (
; IN VOID *Destination,
; IN VOID *Source,
; IN UINTN Count
; )
;------------------------------------------------------------------------------
global ASM_PFX(InternalMemCopyMem)
ASM_PFX(InternalMemCopyMem):
push esi
push edi
mov esi, [esp + 16] ; esi <- Source
mov edi, [esp + 12] ; edi <- Destination
mov edx, [esp + 20] ; edx <- Count
lea eax, [esi + edx - 1] ; eax <- End of Source
cmp esi, edi
jae .0
cmp eax, edi
jae @CopyBackward ; Copy backward if overlapped
.0:
mov ecx, edx
and edx, 3
shr ecx, 2
rep movsd ; Copy as many Dwords as possible
jmp @CopyBytes
@CopyBackward:
mov esi, eax ; esi <- End of Source
lea edi, [edi + edx - 1] ; edi <- End of Destination
std
@CopyBytes:
mov ecx, edx
rep movsb ; Copy bytes backward
cld
mov eax, [esp + 12] ; eax <- Destination as return value
pop edi
pop esi
ret