gistfile1.c

unsigned int z = 1023;
unsigned int x = 1024;
unsigned int test,i;

/* test A */
double a = get_time();
for(i=0; i<1000000000; i++) {
    test = 99999;
    test &= z; 
}
printf("A: %f\n",get_time()-a);

/* test B */
double b = get_time();
for(i=0; i<1000000000; i++) {
    test = 99999;
    test %= x; 
}
printf("B: %f\n",get_time()-b);