1 #include <utility> // std::pair
5 uint32_t test_64(uint64_t ticks) {
6 ticks >>= 3; // divide by 8
7 if (ticks > 0xFFFFFFFF) {
10 ticks = (ticks * 0x55555556) >> 32; // divide by 3
12 return (uint32_t)(0xFFFFFFFF & ticks);
15 const char *result_str(bool result) {
16 return result ? "[OK]" : "[FAIL]";
20 MBED_HOSTTEST_TIMEOUT(20);
21 MBED_HOSTTEST_SELECT(default_auto);
22 MBED_HOSTTEST_DESCRIPTION(Integer constant division);
23 MBED_HOSTTEST_START("MBED_26");
27 { // 0xFFFFFFFF * 8 = 0x7fffffff8
28 std::pair<uint32_t, uint64_t> values = std::make_pair(0x55555555, 0x7FFFFFFF8);
29 uint32_t test_ret = test_64(values.second);
30 bool test_res = values.first == test_ret;
31 result = result && test_res;
32 printf("64bit: 0x7FFFFFFF8: expected 0x%lX got 0x%lX ... %s\r\n", values.first, test_ret, result_str(test_res));
35 { // 0xFFFFFFFF * 24 = 0x17ffffffe8
36 std::pair<uint32_t, uint64_t> values = std::make_pair(0xFFFFFFFF, 0x17FFFFFFE8);
37 uint32_t test_ret = test_64(values.second);
38 bool test_res = values.first == test_ret;
39 result = result && test_res;
40 printf("64bit: 0x17FFFFFFE8: expected 0x%lX got 0x%lX ... %s\r\n", values.first, test_ret, result_str(test_res));
43 MBED_HOSTTEST_RESULT(result);