Subject: Re: [stella] Driving controller multitap From: "Eckhard Stolberg" <Eckhard_Stolberg@xxxxxx> Date: Fri, 27 Feb 2004 00:14:06 +0100 |
> > But you can also use it for four-player joystick > > or driving controller games, which might help getting more > > programmers to support it. > > I thought of a solution where the the input signals would flicker. So you > could utilize "4 kind of any controler" at once. On frame you'd read one > controler, next frame the second. And this for both ports. I was just giving examples. Of course you could design the multitap in such a way that it would multiplex all the lines on the VCS controller port. By switching between the multitap ports you could read as many controllers in a single frame as your code can handle. Since you have four bits to select the ports, you could even build a multitap with 16 input ports, if you can think of a VCS game design with that many players. ;-) Or you could use the unused joystick button input on the right port to support two button joysticks or something. I didn't use paddles as an example, because it takes a full frame to read them and you only can access two paddles at a time with the multitap, so it would take four frames to read them all on a four port setup. Your idea would work better for paddles. But as you say, synchronisation would be a problem, since there are no other easily readable outputs from the VCS other than the controller ports. And these are already used for reading the controllers. Ciao, Eckhard Stolberg ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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