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https://github.com/CloverHackyColor/CloverBootloader.git
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44 lines
999 B
NASM
44 lines
999 B
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006, 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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; ZeroMem.Asm
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;
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; Abstract:
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;
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; ZeroMem function
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;
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; Notes:
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;
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;------------------------------------------------------------------------------
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SECTION .text
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;------------------------------------------------------------------------------
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; VOID *
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; InternalMemZeroMem (
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; IN VOID *Buffer,
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; IN UINTN Count
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMemZeroMem)
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ASM_PFX(InternalMemZeroMem):
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push edi
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xor eax, eax
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mov edi, [esp + 8]
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mov ecx, [esp + 12]
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mov edx, ecx
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shr ecx, 2
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and edx, 3
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push edi
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rep stosd
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mov ecx, edx
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rep stosb
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pop eax
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pop edi
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ret
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