osiweb.org

What is on the board and what pin count/size chips are missing?

While I don't recognise the card, it may be OSI 610 compatable, if so there's only so many chips it could be.

Lee.

__Amadeus wrote:I still have a lot of OSI and Rabble OZI documentation if anyone is interested.

Well I am if no one else is. How about some 300dpi mono scans of it all?

At least of the OZI stuff.

Cheers,

Lee.

Anyone here going for these .. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5186439622&rd=1 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5186523234&rd=1 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5186511521&rd=1 I'm in the wrong country, ...

I've grabbed that copy of PEEK[65] ta much. There seems to be very little of that sort of material available on the net. I know most of my books and notes from then have long since gone. Having checked through my OSI boot images and disks again they are all the same version of OS-65D. Be this V3.0, ...

I've mostly finished disassembling OS-65D V3.0 but there still seems to be chunks of orphaned code and accesses that don't make sense such as writes to $FBxx, $DFxx and others. I'd like to compare with the listing you have. I have a proven design for an IDE interface that allows 16 bit access and us...

I've been looking into the workings of OS-65D V3.0 with the plan to add an 80 track floppy to my Compukit UK101. The OSI DOS seems to be a bit of a bodge, lots of self modifying code and branches to patches, and it would seem just as easy to add an IDE device as a floppy drive. The only real change ...

You might want to add that the 505 also omits the cassette interface.

Perhaps you should advertise a bit?

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Lee.