gregf |
Ramtek's Trivia promoter
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Reged: 09/21/03
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Posts: 8583
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Loc: southern CA, US
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Re: 74LS629
10/20/10 10:32 PM
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>>> Thanks to a patient Smitdogg, we now have this WIP. >>> The 74LS629 is a PITA to emulate. >> The long ago purchase [Donkey Kong logic schematics manual]
>Actually has more to do with Smitdogg lending me a Mario board with 74LS629s on it last > year. There was no way to get this working without testing a real IC.
Okay. I changed my guess and figured it was from a pcb, but wasn't sure which one. As before, good work there.
Is a 566 chip or a pcb (Exidy audio pcb from an Exidy game) still needed? Or is the 566 complete?
------- http://mamedev.org/source/src/emu/sound/disc_dev.c.html
DSD_566 - Usage of node_description values * * Mar 2004, D Renaud. updated Sept 2009 * * The data sheets for this are no where near correct. * This simulation is based on the internal schematic and testing of * a real Signetics IC. -----
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