/**
 * \file
 * <!--
 * This file is part of BeRTOS.
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 * Bertos 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * As a special exception, you may use this file as part of a free software
 * library without restriction.  Specifically, if other files instantiate
 * templates or use macros or inline functions from this file, or you compile
 * this file and link it with other files to produce an executable, this
 * file does not by itself cause the resulting executable to be covered by
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 *
 * Copyright 2006 Develer S.r.l. (http://www.develer.com/)
 * Copyright 1999 Bernie Innocenti <bernie@codewiz.org>
 *
 * -->
 *
 * \brief Very simple rand() algorithm.
 *
 * \author Bernie Innocenti <bernie@codewiz.org>
 */

#include "rand.h"

/**
 *  This would really belong to libc
 */
int rand(void)
{
	static unsigned long seed;

	/* Randomize seed */
	seed = (seed ^ 0x4BAD5A39UL) + 6513973UL;

	return (int)(seed>>16);
}