This is just what I was worried about. Pin #7 is the 5Vdc, pin #5 is listed as potX (or not used?). If one pot line needs to be changed, why not both pot lines?
This mod has been around a long time. I found details in the ADoom docs, IIRC. It seems there was something about adding 2 resistors as well. I modified the controller itself rather than making an adapter for the connector end. It was easier.
If you think about it, Amigas and Segas only have 9-pin game ports and there is only one Fire input in that. To get more fire buttons, some kind of multiplexing must be done in the controller (there is a chip inside for this). When you do the mod (swap pins 5 &7), you power the chip enabling more buttons. Without the mod, I think only left, right, up, down, and fire (hard contacts switching to ground?) work. I don't recall more than one fire button (B?) working on an unmodified Sega controller.
IIRC, the Amiga game software (like ADoom) needs to be expecting the multiplexed signal. Unfortunately, I never investigated too far, I'm not really a gamer. I don't know for example, if the mod makes a Sega controller look like a CD32 controller to the Amiga. Maybe it does.
This was years ago and the best I remember it.
How many Amiga games utilize all the buttons on a CD32 controller? Do you have any?
Does anyone have list of Amiga games that make use of 2 fire buttons? Cammy?
