35    unsigned long mask;  in main()  local
37       mask = 0;  in main()
39          mask += 0xff;  in main()
41          mask += 0xff00;  in main()
43          mask += 0xff0000;  in main()
45          mask += 0xff000000;  in main()
47          mask += 0xff00000000;  in main()
49          mask += 0xff0000000000;  in main()
51          mask += 0xff000000000000;  in main()
53          mask += 0xff00000000000000;  in main()
60                a = (mask & (j * 0x101010101010101)) +  in main()
61                    ((~mask) & (k * 0x101010101010101));  in main()
64                if (result != mask) {  in main()
65                   printf("%8lx %8lx %8lx %8lx\n", mask, a, b, result);  in main()