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MdePkg BaseMemoryLibOptDxe: Convert X64/ZeroMem.asm to NASM

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The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
X64/ZeroMem.asm to X64/ZeroMem.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 18:52:08 -07:00 committed by Liming Gao
parent 98b85271ee
commit 053a51bd09
2 changed files with 51 additions and 0 deletions
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1
MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf
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@ -107,6 +107,7 @@
X64/CompareMem.nasm
X64/CompareMem.asm
X64/CompareMem.S
X64/ZeroMem.nasm
X64/ZeroMem.asm
X64/ZeroMem.S
X64/SetMem64.asm

50
MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.nasm Normal file
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@ -0,0 +1,50 @@
;------------------------------------------------------------------------------
;
; 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:
;
; ZeroMem.Asm
;
; Abstract:
;
; ZeroMem function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; VOID *
; InternalMemZeroMem (
; IN VOID *Buffer,
; IN UINTN Count
; );
;------------------------------------------------------------------------------
global ASM_PFX(InternalMemZeroMem)
ASM_PFX(InternalMemZeroMem):
push rdi
push rcx ; push Buffer
xor rax, rax ; rax = 0
mov rdi, rcx ; rdi = Buffer
mov rcx, rdx ; rcx = Count
shr rcx, 3 ; rcx = rcx / 8
and rdx, 7 ; rdx = rdx & 7
cld
rep stosq
mov rcx, rdx ; rcx = rdx
rep stosb
pop rax ; rax = Buffer
pop rdi
ret