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https://github.com/CloverHackyColor/CloverBootloader.git
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41 lines
996 B
NASM
41 lines
996 B
NASM
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;------------------------------------------------------------------------------
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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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; SetMem.Asm
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;
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; Abstract:
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;
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; SetMem function
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;
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; Notes:
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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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; VOID *
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; EFIAPI
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; InternalMemSetMem (
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; IN VOID *Buffer,
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; IN UINTN Count,
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; IN UINT8 Value
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; )
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMemSetMem)
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ASM_PFX(InternalMemSetMem):
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push rdi
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mov rax, r8 ; rax = Value
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mov rdi, rcx ; rdi = Buffer
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xchg rcx, rdx ; rcx = Count, rdx = Buffer
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rep stosb
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mov rax, rdx ; rax = Buffer
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pop rdi
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ret
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