--- ray/src/common/urand.c	1991/07/11 16:25:58	1.6
+++ ray/src/common/urand.c	1991/08/12 13:07:02	1.7
@@ -60,55 +60,3 @@ register int  n;
 		hval += *d++ * tab[n&7];
 	return(hval);
 }
-
-
-static char  bctab[256] = {
-		0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
-		1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-		1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-		1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-		2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-		3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-		3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-		4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8,
-	};
-
-
-#define NBITS		32
-
-#if NBITS==32
-#define  bitcount(i)	(bctab[(i)>>24&0xff]+bctab[(i)>>16&0xff]+ \
-				bctab[(i)>>8&0xff]+bctab[(i)&0xff])
-#endif
-#if  NBITS==16
-#define  bitcount(i)	(bctab[(i)>>8&0xff]+bctab[(i)&0xff])
-#endif
-
-
-int
-urind(s, i)			/* compute i'th index from seed s */
-int	s, i;
-{
-	register int  ss, k;
-	int  left;
-
-	ss = s*1103515245 + 12345;
-	left = 0;
-	for (k = i/NBITS; k--; ) {
-		left += bitcount(ss);
-		ss = ss*1103515245 + 12345;
-	}
-	for (k = i&(NBITS-1); k--; ss >>= 1)
-		left += ss & 1;
-	if (ss & 1)
-		return(s-left-1);
-	return(s-left+i);
-}