uint8 table = {
32, 0, 1,12, 2, 6, 0,13, 3, 0, 7, 0, 0, 0, 0,14,
10, 4, 0, 0, 8, 0, 0,25, 0, 0, 0, 0, 0,21,27,15,
31,11, 5, 0, 0, 0, 0, 0, 9, 0, 0,24, 0, 0,20,26,
30, 0, 0, 0, 0,23, 0,19, 29, 0,22,18,28,17,16, 0
};
table[ (i*0x0450FBAF) >> 26];

クォリティ低いスレだな。