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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)swabbytes.c 1.6 03/06/15 Copyright 1988, 1995-2003 J. Schilling */
/*
* swab bytes in memory
*
* Copyright (c) 1988, 1995-2003 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <standard.h>
#include <schily.h>
#define DO8(a) a; a; a; a; a; a; a; a;
EXPORT void
swabbytes(vp, cnt)
void *vp;
register int cnt;
{
register char *bp = (char *)vp;
register char c;
cnt /= 2; /* even count only */
while ((cnt -= 8) >= 0) {
DO8(c = *bp++; bp[-1] = *bp; *bp++ = c;);
}
cnt += 8;
while (--cnt >= 0) {
c = *bp++; bp[-1] = *bp; *bp++ = c;
}
}
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