From 053a51bd09703d73c759c19664d8159771e0111b Mon Sep 17 00:00:00 2001 From: Jordan Justen Date: Mon, 30 May 2016 18:52:08 -0700 Subject: [PATCH] MdePkg BaseMemoryLibOptDxe: Convert X64/ZeroMem.asm to NASM 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 --- .../BaseMemoryLibOptDxe.inf | 1 + .../BaseMemoryLibOptDxe/X64/ZeroMem.nasm | 50 +++++++++++++++++++ 2 files changed, 51 insertions(+) create mode 100644 MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.nasm diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf index b9497d16d3..e8268bf043 100644 --- a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf +++ b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf @@ -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 diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.nasm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.nasm new file mode 100644 index 0000000000..39ad9e0808 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.nasm @@ -0,0 +1,50 @@ +;------------------------------------------------------------------------------ +; +; 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: +; +; 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 + -- 2.39.2