| R. Belmont |
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Cuckoo for IGAvania
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Discrete logic master class
#107700 - 04/10/07 08:37 PM
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Over the last several years (!) emulation legend Dan Boris has been "disassembling" Pong in detail circuit-by-circuit on AtariAge. It's really good stuff if you were curious how discrete logic games worked. Basic knowledge of Boolean logic (AND/OR/XOR/NAND) should get you through most of it, it's pretty clearly written considering the subject matter.
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| gregf |
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Ramtek's Trivia promoter
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Re: Discrete logic master class
[Re: R. Belmont]
#107702 - 04/10/07 09:18 PM
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>Dan Boris has been "disassembling" Pong in detail circuit-by-circuit on AtariAge. It's
> really good stuff if you were curious how discrete logic games worked.
I first read Dan's topic last year after someone had linked it last year on MAME.net forum. This was at the time when Tickle had partially emulated Rebound last year and was
discussed on MAME forum last year.
I didn't know Dan updated the example of circuits used with pong hardware recently.
This will be handy for getting Midway Winner and Midway Winner IV up and running later.
I'll see about getting this Midway paperwork scanned. For now, the person is scanning other logic schematics for 8080 hardware games.
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| R. Belmont |
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Cuckoo for IGAvania
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Re: Discrete logic master class
[Re: gregf]
#107705 - 04/10/07 10:08 PM
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Yeah, the nice thing is he re-drew the schematics too so they're more readable.
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| gregf |
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Ramtek's Trivia promoter
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Re: Discrete logic master class
[Re: R. Belmont]
#107707 - 04/10/07 10:56 PM
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>Yeah, the nice thing is he re-drew the schematics too so they're more readable.
I am guessing the diagrams are from the old pong schematics scans done years earlier.
The Midway Winner and Winner IV scans will be a lot better (very readable).
Midway Winner scans will be more important because that is the logic schematics
sheet that has all the ic ttl numbers. Midway Winner IV logic sheet does not have
any of the ttl ic numbers.
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Stiletto |
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They're always after me Lucky ROMS!
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Re: Discrete logic master class
[Re: R. Belmont]
#107749 - 04/11/07 08:44 AM
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> Yeah, the nice thing is he re-drew the schematics too so they're more readable.
Are you sure they're not from Juergen's redrawing? I don't have them available right now, so I can't check. Maybe later.
- Stiletto
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