Re: incorporating a pause button option,

On the 6502 it would be the READy line.

BUT, all that will get you is a watchdog reset a few milliseconds
later. On Pacman the pause switch also stopped the watchdog.

On a vector game pause might cause damage. Don't the Sega games blow up
monitors if held in reset?

John Robertson wrote:
>
> As far as I recall only Pacman (and variations) had the pause button. You
> could try breaking the NMI and see what happens...
> If the processor is a Z-80 then you can use the HALT line, pull it low to
> freeze the CPU. Can't recall if 6502's had a similar pin and don't have the
> data books handy...
>
> John :-#)#
>
> At 06:29 PM 10/21/01, you wrote:
> > > I need to know if there is any way to incorporate a pause button any
> > way on some of the older Atari arcade games such as
> > > tempest, major havoc, asteroids, any way to wire one on to the board,
> > or boards, please contact me if you know, Thank You.
> >
> >I think many games have a "pause" dip switch on the board. I suppose
> >you could wire a toggle switch into it and mount it outside the cabinet
> >somewhere. If you have the schematics, it shouldn't be too hard to
> >figure out.
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Received on Mon Oct 22 00:18:54 2001