If the dlbf_slave does not time out, the test_dlbf function calls the dlbf_slave_read_and_verify function. This function compares the data in the dlbf_slave to the golden output data in the dlbf_gold0.cpp file. If there are any mismatches, the test fails. If all the output data matches the golden output data, then the test_dlbf passes and returns a 1’b to the main function.