3 Buttons Gamepad?

[MrChatouille]

I remember using my megadrive gamepad on my master system when I was a kid.

There are programs to test the megadrive controller on the master system (https://www.smspower.org/forums/1497-Pr ... InfoUpdate or https://www.smspower.org/forums/17116-S ... ssHomebrew).

And more importantly, there are some hacks to relocate the second controller to the main controller, for example cyborg hunter https://www.smspower.org/forums/16791-C ... SMDPadHack.

Is this kind of functionality feasible or desirable in the project?

I would have liked to try, but I don't know anything about programming an fpga.