Looking for a scanned copy of the Intel 82750PB Microcode Programming Guide. Doesn't seem to be on @bitsavers and Google turns up little else. Anyone?
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@brouhaha , you know where to get this?
For some context, it would appear that Data East's arcade game, Dragon Gun, uses an 82750PB/DB pair to decode DVI-codec videos from ROM, which are displayed in the background during boss fights.
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It's not. On page 48 it even states, "Refer to the Intel 82750PB Microcode Programming Guide for more information on programming the 82750PB." Nothing on Bitsavers, nothing via Google, hence turning to the crowd-source option here.
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FYI, I found and dumped this recently. Doesn’t work sadly.https://twitter.com/PhilBennett3D/status/1348208965415362562 …
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Right, one of the i750 chips is either an 82750PA or PB, the other will be an 82750DA/DB. The former has either 512 or 256 words of microcode RAM depending on model, and will need a CPU core written for it once the full doc is found rather than the i750 overview doc.
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