4.4BSD/usr/src/games/hack/rnd.c

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/* rnd.c - version 1.0.2 */

#define RND(x)	((random()>>3) % x)

rn1(x,y)
register x,y;
{
	return(RND(x)+y);
}

rn2(x)
register x;
{
	return(RND(x));
}

rnd(x)
register x;
{
	return(RND(x)+1);
}

d(n,x)
register n,x;
{
	register tmp = n;

	while(n--) tmp += RND(x);
	return(tmp);
}