Can you play Genesis games with a Master System Controller? I have seen stuff relating to playing Master System games with the Genesis controller, but not vice versa.
The most basic question I have ever asked.
Posted 05 July 2011 - 12:01 AM
The MD controller uses the same protocol as the SMS controller, except it multiplexes A, B, C, and Start onto two lines. B is muliplexed with A, and C is multiplexed with Start.
On the SMS controller, B/A is mapped to I, and C/Start is mapped to II. (I think these are right, but they might be backwards...) Basically, the game will interpret pressing one of the SMS controller buttons as pressing two of the MD controller buttons. For Sonic games, this won't be a problem, but games that require use of all three buttons individually won't work too well.
Also, games that specifically detect what controller is in use (e.g. Street Fighter II) will not detect an SMS controller, since the controller ID mechanism used in the MD results in a value of $F for the SMS controller (which is the same as "nothing connected").
Posted 05 July 2011 - 12:40 PM
2) How does a Genesis interpret an Atari 2600 controller? I've used one before to play Sonic 1, but I had to plug in a genesis controller first to press start on the title screen.
Posted 05 July 2011 - 03:27 PM
Posted 06 July 2011 - 10:51 PM
Posted 07 July 2011 - 03:28 AM
You could solve the busfight issue with few series resistors on the muxer outputs, it is not ideal but it will make one side win without having negative consequences on other.
Posted 15 July 2011 - 07:32 PM
Posted 15 July 2011 - 08:37 PM
And I've unplugged joysticks all the time, since half the games I have work from port 1, while the other work from port 2.
Posted 19 July 2011 - 09:00 AM