diff --git a/tests/bitarithm_timings/main.c b/tests/bitarithm_timings/main.c index 3b4fc14d46..6cdec07bc4 100644 --- a/tests/bitarithm_timings/main.c +++ b/tests/bitarithm_timings/main.c @@ -40,6 +40,15 @@ #define TIMEOUT (TIMEOUT_S * US_PER_SEC) #define PER_ITERATION (4) +#if ARCH_32_BIT +#define TEST_AND_CLEAR_TEST_MASK_0 (0xA2101045UL) +#define TEST_AND_CLEAR_TEST_MASK_1 (0x22101044UL) +#else +#define TEST_AND_CLEAR_TEST_MASK_0 (0x9045UL) +#define TEST_AND_CLEAR_TEST_MASK_1 (0x1244UL) + +#endif + static atomic_bool done; static void callback(void *unused) @@ -84,6 +93,36 @@ static void run_test(const char *name, unsigned (*test)(unsigned)) printf("+ %s: %lu iterations per second\r\n", name, (4*PER_ITERATION) * count / TIMEOUT_S); } +static unsigned do_test_and_clear(unsigned state) +{ + uint8_t index = 0; + unsigned found = 0; + + while (state) { + state = bitarithm_test_and_clear(state, &index); + found |= 1 << index; + } + + return found; +} + +static void run_test_test_and_clear(void) +{ + unsigned long count = 0; + atomic_store(&done, false); + + xtimer_t xtimer = { .callback = callback }; + xtimer_set(&xtimer, TIMEOUT); + + do { + assert(do_test_and_clear(TEST_AND_CLEAR_TEST_MASK_0) == TEST_AND_CLEAR_TEST_MASK_0); + assert(do_test_and_clear(TEST_AND_CLEAR_TEST_MASK_1) == TEST_AND_CLEAR_TEST_MASK_1); + ++count; + } while (atomic_load(&done) == false); + + printf("+ %s: %lu iterations per second\r\n", "bitarithm_test_and_clear", 2 * count / TIMEOUT_S); +} + #define run_test(test) run_test(#test, test) int main(void) @@ -93,6 +132,7 @@ int main(void) run_test(bitarithm_msb); run_test(bitarithm_lsb); run_test(bitarithm_bits_set); + run_test_test_and_clear(); printf("Done.\r\n"); return 0; diff --git a/tests/bitarithm_timings/tests/01-run.py b/tests/bitarithm_timings/tests/01-run.py index e8bfc9aa26..6ec1d4f831 100755 --- a/tests/bitarithm_timings/tests/01-run.py +++ b/tests/bitarithm_timings/tests/01-run.py @@ -15,6 +15,7 @@ def testfunc(child): child.expect(r'\+ bitarithm_msb: \d+ iterations per second') child.expect(r'\+ bitarithm_lsb: \d+ iterations per second') child.expect(r'\+ bitarithm_bits_set: \d+ iterations per second') + child.expect(r'\+ bitarithm_test_and_clear: \d+ iterations per second') child.expect_exact("Done.")