8 int main(int argc, char *argv[])
13 enum { Z = 0, Z1 = 2, X = 4, X0 = 6 };
16 x = mp_readstring(MP_NEW, argv[1], 0, 0);
19 for (i = 0, mp_scan(&sc, x); mp_step(&sc); i++) {
20 switch (st | mp_bit(&sc)) {
21 case Z | 1: st = Z1; printf("\t-> Z1\n"); break;
22 case Z1 | 0: st = Z; printf("+ %lu\t-> Z\n", i - 1); break;
23 case Z1 | 1: st = X; printf("- %lu\t-> X\n", i - 1); break;
24 case X | 0: st = X0; printf("\t-> X0\n"); break;
25 case X0 | 1: st = X; printf("- %lu\t-> X\n", i - 1); break;
26 case X0 | 0: st = Z; printf("+ %lu\t-> Z\n", i - 1); break;
30 case Z1: case X0: printf("+ %lu\n", i - 1); break;
31 case X: printf("+ %lu\n", i); break;