I have several Atari controllers laying around and decided at some point to create a controller with six or more inputs that could be utilized for one player homebrew games. I think I remember seeing this mentioned in one or more places, but to the best of my knowledge, no one has actually tried it yet.
Then, I cleared a few of the cobwebs out of my head, and realized it would be much simpler to take advantage of an already existing controller (enter Sega Genesis which is already compatible) with more than the five inputs and combine it with a cord from an Atari controller to plug into the second port.
So... using 2 player Ice Hockey as my test, I have a Genesis controller that plugs into both ports and controls the D-pad and the B and C buttons (six inputs instead of five).
I have literally cut and tested all nine colored wires from the Genesis controller, but none seem to control the A button or the start button.
Here's the list I've come up with:
Sega Genesis controller:
(from controller out)
Black = some sort of power or verification- controller goes dead without this cord.
Blue = B button (player 0 fire button)
White = C button (which I used as player 1 fire button)
Yellow = right
Green = ?? (didn't seem to have any effect)
Gray = not really sure... doesn't control the buttons, but buttons won't work without it.
Red = down
Brown = up
Orange = left
Attached Atari cord for port 2:
Black = power
Orange = fire
White = up
Blue = down
Brown = right
Green = left
I bought this Genesis controller strictly to test on, anyone have any idea why I can't get the A button and start button to work? Anyone else actually made a controller like this? If we can come up with something good, we should make a standard so that all homebrewers could take advantage of the custom controller if they like. It works right now, but hopefully you guys can make it better. Thoughts, anyone?
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