From 98b85271eedd1bfd2944ba9f467ab879ff6f0bca 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/CompareMem.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/CompareMem.asm to X64/CompareMem.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen --- .../BaseMemoryLibOptDxe.inf | 1 + .../BaseMemoryLibOptDxe/X64/CompareMem.nasm | 58 +++++++++++++++++++ 2 files changed, 59 insertions(+) create mode 100644 MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.nasm diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf index 94d628fe84..b9497d16d3 100644 --- a/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf +++ b/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe.inf @@ -104,6 +104,7 @@ X64/ScanMem8.nasm X64/ScanMem8.asm X64/ScanMem8.S + X64/CompareMem.nasm X64/CompareMem.asm X64/CompareMem.S X64/ZeroMem.asm diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.nasm b/MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.nasm new file mode 100644 index 0000000000..293a39b256 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibOptDxe/X64/CompareMem.nasm @@ -0,0 +1,58 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006 - 2008, 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: +; +; CompareMem.Asm +; +; Abstract: +; +; CompareMem function +; +; Notes: +; +; The following BaseMemoryLib instances contain the same copy of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; BaseMemoryLibOptDxe +; BaseMemoryLibOptPei +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; INTN +; EFIAPI +; InternalMemCompareMem ( +; IN CONST VOID *DestinationBuffer, +; IN CONST VOID *SourceBuffer, +; IN UINTN Length +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(InternalMemCompareMem) +ASM_PFX(InternalMemCompareMem): + push rsi + push rdi + mov rsi, rcx + mov rdi, rdx + mov rcx, r8 + repe cmpsb + movzx rax, byte [rsi - 1] + movzx rdx, byte [rdi - 1] + sub rax, rdx + pop rdi + pop rsi + ret + -- 2.39.2