> Yeah, the DIPs are pretty inconvenient. The two ways I can see to do
> this from a hardware point of view:
...
> 2) Put the menu system in the first page of the row 6 ROM. You lose
> a game, but no new hardware is needed.
>
I like #2. Basically what the Sega multigame is. (Actually, I think I
might be able to just plug in the Sega multigame with a PAL change...
;-) Does Pac use IRQ or NMI? If not, that might make for an easy "menu
caller". Otherwise a little hardware can reset the bank multigame bank
register to the menu segment and force a reset. No big deal...
The more I work on these multigame projects the more I wonder if I
should just make a general-purpose control mapper? Something that takes
N inputs on one side and can under program control route any input to
any "output" on the other side. Have a few "select" lines that choose a
particular program.
(The idea being you could hook up a couple joysticks, and a bunch of
buttons and under program control from a little built-in processor
"rewire" them to different outputs. I don't know if there's enough
"multigame" capable boards to really merit it though.)
-Clay
Received on Fri Jun 5 09:17:01 1998
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