9344f09215
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
51 lines
1.2 KiB
NASM
51 lines
1.2 KiB
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.nasm
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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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DEFAULT REL
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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 rdi
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mov rdi, rcx
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mov rcx, rdx
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mov r8, rdi
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and edx, 7
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shr rcx, 3
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jz @ZeroBytes
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DB 0xf, 0xef, 0xc0 ; pxor mm0, mm0
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.0:
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DB 0xf, 0xe7, 7 ; movntq [rdi], mm0
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add rdi, 8
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loop .0
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DB 0xf, 0xae, 0xf0 ; mfence
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@ZeroBytes:
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xor eax, eax
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mov ecx, edx
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rep stosb
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mov rax, r8
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pop rdi
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ret
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