mirror of https://github.com/acidanthera/audk.git
58 lines
1.4 KiB
NASM
58 lines
1.4 KiB
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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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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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 edi
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mov ecx, [esp + 12]
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mov eax, [esp + 16]
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mov edx, [esp + 20]
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mov edi, [esp + 8]
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.0:
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cmp eax, [edi]
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lea edi, [edi + 8]
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loopne .0
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jne .1
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cmp edx, [edi - 4]
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jecxz .1
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jne .0
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.1:
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lea eax, [edi - 8]
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cmovne eax, ecx
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pop edi
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ret
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