Last time I checked cen64 does read input from glfw's gamepad input. I have tested it myself and it does respond to input if you use a gamepad.Question: There is no input plugin right? I mean, when I need to push "Press start", there is no way to do it for now right?
The button mappings are most likely gonna be off though. You should be able to change the mappings manually in the code if you would like to.
This is where the emulator reads input: https://github.com/tj90241/cen64-pif/blob/master/Actions.c#L115.