bbit.c

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/* BeeOS v0.1. Created: 2003/08/10 Modified: 2004/03/03
 * Copyright (C) 2004 Paul Harvey - ROMA, Australia.
 * csirac@users.sourceforge.net
 */

/*   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 * 
 *   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; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include "../include/beeos.h"
#include "../include/bbit.h"

/*@-redef@*/
void bitnclr(uchar *addr, uchar bitn)
/*@=redef@*/
{
    *addr &= ~(0x01<<bitn);

    return;
}

/*@-redef@*/
void bitnset(uchar *addr, uchar bitn)
/*@=redef@*/
{
    *addr |= 0x01<<bitn;
    
    return;
}

/*@-redef@*/
bool bitncheck(uchar *addr, uchar bitn)
/*@=redef@*/
{
    if ((*addr & (0x01<<bitn)) != '\0') return true;
        else return false;
}

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