VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/asm/ASMMemFill32-generic.cpp@ 103795

Last change on this file since 103795 was 103010, checked in by vboxsync, 11 months ago

iprt/asm.h,*: Split out the ASMMem* and related stuff into a separate header, asm-mem.h, so
that we can get the RT_ASM_PAGE_SIZE stuff out of the way. [build fixes]

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.4 KB
Line 
1/* $Id: ASMMemFill32-generic.cpp 103010 2024-01-24 00:14:44Z vboxsync $ */
2/** @file
3 * IPRT - ASMMemZeroPage - generic C implementation.
4 */
5
6/*
7 * Copyright (C) 2021-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/asm-mem.h>
42#include "internal/iprt.h"
43
44#include <iprt/string.h>
45#include <iprt/assert.h>
46
47
48RTDECL(void) ASMMemFill32(volatile void RT_FAR *pv, size_t cb, uint32_t u32) RT_NOTHROW_DEF
49{
50 Assert(!(cb & 3));
51 size_t cFills = cb / sizeof(uint32_t);
52 uint32_t *pu32Dst = (uint32_t *)pv;
53
54 while (cFills >= 8)
55 {
56 pu32Dst[0] = u32;
57 pu32Dst[1] = u32;
58 pu32Dst[2] = u32;
59 pu32Dst[3] = u32;
60 pu32Dst[4] = u32;
61 pu32Dst[5] = u32;
62 pu32Dst[6] = u32;
63 pu32Dst[7] = u32;
64 pu32Dst += 8;
65 cFills -= 8;
66 }
67
68 while (cFills > 0)
69 {
70 *pu32Dst++ = u32;
71 cFills -= 1;
72 }
73}
74
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