CHUNKFACTOR
#define NZONES (16 + 9 * CHUNKFACTOR + 16 * CHUNKFACTOR)
#define NZONES (16 + 9 * CHUNKFACTOR + 48 * CHUNKFACTOR)
c = x / (CHUNKFACTOR * 2);
c = x / (CHUNKFACTOR * 2);
i = 16 + CHUNKFACTOR * 5; /* 256->512,1024,2048,4096,8192 */
i += CHUNKFACTOR;
return (i + n / c - CHUNKFACTOR);