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The real 7220 is almost always connected to a Z80 too.

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Oh. Odd, I thought there were computers where the 7220 was connected directly to an 8086.

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Pretty much anything can be connected to anything if you spend the gates. There's a 68882 FPU card for the Apple II smile

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Eh, good point.

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There's also a text-only video option (ABS card) -- Z80 + 8275. Firmware emulates a VT220 terminal or something close.

doc: http://www.tiffe.de/Robotron/MMS16/ABS-K7071/ABS-K7071.pdf
roms: http://www.tiffe.de/Robotron/MMS16/roms/ABS/

This machine is weird-ass indeed, hope Alegend45 doesn't give up on it smile

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Well, unfortunately, there's barely any docs on it whatsoever, and the existing ones are in German, making them hard as hell to read for a monolingual like me.

In other words, until I can get one off eBay or something and study it myself, I can't finish it. Oh well, off to getting other, hopefully less obscure things booting.

Last edited by Alegend45; 01/25/14 07:22 PM.
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Even if you cannot finish it, you can still submit the progress so far. Perhaps someone else can pick it up from there.

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http://pastebin.com/TsJnqFm9

That's all the work I've got. It'll probably require some cleanup, though.

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Thanks for your effort anyway.

I've only seen this machine once and it was not starting up, but maybe I can track it down again...

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Sound card for poisk1 turned up (http://zx.pk.ru/showthread.php?t=22566) and its software's been dumped, but there's no useful info on the card itself (yet).

Apparently it has MIDI in/out (there's a 8251 for that), DAC/ADC and some kind of sound generator (most probably a 8253 again).

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