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I found some technical documents for chips used in the systems:

NEC 7220D Graphics controller (Rainbow + DMV)

NEC D8741AD Peripheral Interface Controller (PC-D Graphics, DMV Mouse), has 1KB ROM area

SCN2674B Graphics Controller (PC-D Graphics)

Controller tech docs

Robert

I'll double-check, but I think we already host these either publicly or privately. Thanks for what you are doing though!

[EDIT] I take it back, only the SCN2674 is being hosted at all. Thanks for the heads' up!

You're welcome. I've looked at the MESS driver code ... there's no way I can contribute directly ;-) so I'll resign myself to supporting as best as I can ;-)

Robert

Hmmm ... I'm missing something here:

I compiled MESS, put the BIOS and chargen images into rainbow.zip, put it in \roms, put the disk images mentioned in rainbow.xml into roms\rainbow, but MESS won't let me start emulation, it comes up with "The selected game is missing one or more ROM or CHD images".

This procedure was the result of some searching, so please be gentle with a noob ;-)

Robert

you need roms from link you sent + your char rom dump (note that you have two bytes at start that are not part of dump so you need to remove those two)

also, which command line options did you exactly use?

and a few notes, from running it:

1: there is no disk drive defined
2: doesn't really boot *

*

Get's to there

Thanks, Micko.

I've removed the two bytes, the Hashes and CRCs match the ones in rainbow.c, but no joy so far.

@etabeta: I just started mess64.exe and tried to launch the Rainbow driver from the list. I'll try launching it from the command line.

Robert

I had the two main ROMs mixed up ... sorry!

The error displayed is (of course ) not in the Owner's manual. A "real" Rainbow has a strip of LEDs for diagnostics ... maybe that could be emulated as well?

The disk drives are DEC RX50's,

e.g. DEC RX50

I found a Rainbow 100 diagnostic disk in a stack that I had not imaged until now ... maybe that helps once a disk drive is added.

DEC Rainbow 100 Diagnostic Disk

Robert

In the NCR DMV driver there's a place reserved for the keyboard ROM, I've just checked, it's another D8741AD ... how can the ROM of these chips be read?
The system technical manual has the listings for Version 1 (which means US English, UK English, Danish, German, Swedish/Finnish, Norwegian, Spanish, Italian) and Version 2 (Swiss-German, Swiss-French, French, Canadian/Australian, Canadian (Bilingual), South African, Portuguese, Yugoslavian (yes, the 80's))
So in theory they could be OCR'd and recompiled.

As for the Siemens PC-D, when the skeleton was added, it was added to pc.c ... but somehow I can't find it.

Robert