An interrupt sensitive extract byte instruction scheme is presented herein. Subsequently the output of two stage drive belt system is fed back to the motorized motor outside housing which in turn drives treadmill or conveyor continuous belt to move people or goods. The lower ends of the radiating fins in two-side parts each provides at least one passageway which is connected to some of the flow passages. In some embodiments, area constraints are applied to the optimization. User-selectable application feature options are displayed in the application builder wizard graphical user interface and application feature data is added to the initial application data structure to create a modified application data structure. Each of the lateral sections are in fluid communication with one of the axial sections and form a port on an outer surface of the spindle body.