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The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/ScanMem64.asm to X64/ScanMem64.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
56 lines
1.6 KiB
NASM
56 lines
1.6 KiB
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php.
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;
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; Module Name:
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;
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; ScanMem64.Asm
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;
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; Abstract:
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;
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; ScanMem64 function
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;
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; Notes:
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;
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; The following BaseMemoryLib instances contain the same copy of this file:
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;
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; BaseMemoryLibRepStr
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; BaseMemoryLibMmx
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; BaseMemoryLibSse2
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; BaseMemoryLibOptDxe
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; BaseMemoryLibOptPei
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;
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;------------------------------------------------------------------------------
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; CONST VOID *
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; EFIAPI
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; InternalMemScanMem64 (
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; IN CONST VOID *Buffer,
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; IN UINTN Length,
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; IN UINT64 Value
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMemScanMem64)
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ASM_PFX(InternalMemScanMem64):
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push rdi
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mov rdi, rcx
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mov rax, r8
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mov rcx, rdx
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repne scasq
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lea rax, [rdi - 8]
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cmovnz rax, rcx
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pop rdi
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ret
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