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7800 Piggyback Expansion Module comes to life!


Curt Vendel

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The Expansion Module will also have a DB-15 (yes I changed it) Keyboard Interface Port, to allow more advanced games - like Star Raiders, or modem terminals or a developer station to be run on the system.

 

Will it take an XEGS keyboard? Aren't those DB-15? If so, is there a source for them or replacements?

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Going to put together as much technical data as possible so everyone can really delve into the device and take as much advantage of it as possible.

 

 

Curt

 

Curt,

 

Once this gets released will there be a wiring diagram for attaching existing keyboards, or are there other surprises in mind?

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As long as it can be sourced at a decent price, yes it will be included, I see no reason why not.

 

 

Is the YAMAHA sound chip that was proposed, still going to be implemented in this early design, or is that going to be left as an option for a plug-in by other developers in the future? I know implementation and development costs might be an issue. Thinking about such games as Contra, which use a similar chip, what a treat it might be to port over the arcade sound, if possible. The game might even run just a touch faster, with the Maria being given just a schoosh more breathing space.

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Yes and I still want it, but I think he discontinued work on it because of some technical issue, other pending projects on the table. Oh, well, to dream. :)

 

Who is "he" in this context? Is it me? If so, unless I publicly announce that I've stopped work on a WIP then its still active.

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Yes and I still want it, but I think he discontinued work on it because of some technical issue, other pending projects on the table. Oh, well, to dream. :)

 

Who is "he" in this context? Is it me? If so, unless I publicly announce that I've stopped work on a WIP then its still active.

 

 

I'm sorry, I should have been more clear and probably should have quoted. My apologies. I was referencing Big O's 5200 controller mod project, pictured as his avatar. As far as I know (which is often little), he put that design on hold.

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I'm sorry, I should have been more clear and probably should have quoted. My apologies. I was referencing Big O's 5200 controller mod project, pictured as his avatar. As far as I know (which is often little), he put that design on hold.

 

No probs. Thanks for clearing the confusion up.

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I just thought of something. The HSC enabled games, were there any that were marketed by Atari? If so, what are they so I can stock up on them. Stupid question I know, but I've always thought that when the HSC was scrapped, Atari took out the support of it in their games.

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I just thought of something. The HSC enabled games, were there any that were marketed by Atari? If so, what are they so I can stock up on them. Stupid question I know, but I've always thought that when the HSC was scrapped, Atari took out the support of it in their games.

 

Some of the initial 7800 games have support for it. Tramiel Atari didn't add support in any of their games after 1987, I don't think.

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There will be a FULL technical documents set with the module with programming info, sample code, pinouts and so forth, this will cater to users and developers alike and all of the files will also be put up onto the 7800 section of atarimuseum too.

 

 

 

Curt

 

Curt,

 

Once this gets released will there be a wiring diagram for attaching existing keyboards, or are there other surprises in mind?

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The first 9 games done by GCC for Atari all had high score capability in them, just about every homebrew has hsc capability in it, so there are probably 20+ now games that support it.

 

 

I just thought of something. The HSC enabled games, were there any that were marketed by Atari? If so, what are they so I can stock up on them. Stupid question I know, but I've always thought that when the HSC was scrapped, Atari took out the support of it in their games.

 

Some of the initial 7800 games have support for it. Tramiel Atari didn't add support in any of their games after 1987, I don't think.

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Hi Steve,

 

Still in multiple test boards right now, will move to final board design by end of month, thanks for the offer, will send you a PM...

 

 

Curt

 

Have the boards for these already been fabbed?

 

I have a few reels of 128KB SOIC SRAM here. I'd be happy to contribute a couple hundred to make this happen.

 

Steve

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Is the YAMAHA sound chip that was proposed, still going to be implemented in this early design, or is that going to be left as an option for a plug-in by other developers in the future? I know implementation and development costs might be an issue. Thinking about such games as Contra, which use a similar chip, what a treat it might be to port over the arcade sound, if possible. The game might even run just a touch faster, with the Maria being given just a schoosh more breathing space.

 

Contra being my mistaken reference to Commando, of course. Owning up before the true-believers start their assault. ;)

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Is the YAMAHA sound chip that was proposed, still going to be implemented in this early design, or is that going to be left as an option for a plug-in by other developers in the future? I know implementation and development costs might be an issue. Thinking about such games as Contra, which use a similar chip, what a treat it might be to port over the arcade sound, if possible. The game might even run just a touch faster, with the Maria being given just a schoosh more breathing space.

 

Contra being my mistaken reference to Commando, of course. Owning up before the true-believers start their assault. ;)

Well, Contra used a YM2151 so you're not too far off. ;)

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I just got some Imagic Atari 2600 games to play on my 7800 and it was a extrememely tight fit and quite hard to get them in there. Would the Expansion module allow other 3rd party 2600 games to fit a little better in the 7800? I know my Stampede game is tight fit also and you have to get it just right for it to play.

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