/*
 *				r a n d . c
 */

/*)LIBRARY
*/

#ifdef	DOCUMENTATION

title	rand	Random number generator
index		Random number generator

synopsis
	.s.nf
	long
	rand()

	extern long	seed;	/* Random number seed	*/
	.s.f
Description

	Generate a pseudorandom number.

	The algorithm is:

	    seed = (69069 * seed + 1);

	The algorithm is based on the mth$random function in the
	VMS common run-time library.

	Note that the algorithm is prone to nonrandom sequences when
	considering the next pseudorandom number.

Bugs

#endif

#ifdef	M68000
#include	<comdef.h>
IRAM_SECT(irm00)
#endif

long seed	= 1234567L;

#ifdef	M68000
ROM_SECT(strings)
#endif

long
rand()
{
	seed *= 69069L;
	seed += 1;
	return (seed & 0X8FFFFFFFL);
}