mirror of
https://github.com/nitraiolo/CfgUSBLoader.git
synced 2024-10-22 22:25:05 +02:00
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/*
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* Copyright (C) 2010 Spaceman Spiff
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <utils.h>
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void dip_memset(u8 *buf, u32 ch, u32 size)
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{
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u32 unaligned;
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u8 c = (u8) ch;
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int cnt = 0;
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if (size == 0)
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return;
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unaligned = (4 - ((u32) buf & 0x3)) & 0x3;
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if (unaligned > size)
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unaligned = size;
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if (unaligned)
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while (unaligned--) {
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buf[cnt] = c;
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cnt++;
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};
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// Process aligned bytes
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u32 c32 = (ch << 24) | (ch << 16) | (ch << 8) | ch;
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u32 *buf32 = (u32 *) (buf + cnt);
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while (cnt + 4 <= size) {
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*(buf32++) = c32;
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cnt += 4;
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}
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// Process unaligned tail bytes
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while (cnt++ < size)
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buf[cnt] = c;
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}
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