// poll which updates the controller state
private void snes_input_poll()
{
_controllers.CoreInputPoll(_controller);
}
/// <param name="port">0 or 1, corresponding to L and R physical ports on the snes</param>
/// <param name="index">meaningless for most controllers. for multitap, 0-3 for which multitap controller</param>
/// <param name="id">button ID enum; in the case of a regular controller, this corresponds to shift register position</param>
/// <returns>for regular controllers, one bit D0 of button status. for other controls, varying ranges depending on id</returns>
private short snes_input_poll(int port, int index, int id)
{
return(_controllers.CoreInputPoll(_controller, port, index, id));
}