Re: Source for AY-3-8912 chips

On Mon, 28 Feb 2000, Christopher X. Candreva wrote:

> On Mon, 28 Feb 2000, Mark A. Jenison wrote:
>
> > BTW, I double checked my Star Trek this weekend, and no "Sector Secured"
> > voice is heard on mine; version B softare. As far as the "Player 1" start
> > thing, I don't have my game set for attract mode.
>
> No sector secured here either.
>
> On the "Press player 1 voice" -- here's the thing. When you put a coin in,
> it just plays the music. However, if you don't press start, it will
> continue to cycle through attract mode, and eventually come back to the
> screen saying "Press Player 1". THAT is when the voice is triggered, at
> least on my Offical Clay Cowgill MultiGame machine.
>
> So this suggests 2 hacks for a V2 Multigame eprom:
>
> 1) Have it say "sector secured".

This doesn't exist on the game today, so you'd be asking Clay to write new
speech.

> 2) Hijack one of the lesser-used coin modes (4 coin / 1 Credit maybe) to be
> Free Play. Credit counter initialized to 2, and not decremented on game
> start.

Free play for these games has been talked about for some time. However,
IIRC, Eliminator and Tac/Scan really don't have an attract mode after
credits have been put on (possible burn in potential). So what really
needs to be done is to just hack the code such that pressing the player 1
button starts a 1 player game, and player 2 button starts a two player
game (this would only work during attract mode, of course), thus skipping
any sort of credit checking altogether.

--
Mark Jenison
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