Enigma

Is there any progress on this project.. ??

The S9900 looks like a good alternative to a TMS9900... did they make a S9995 (TMS9995 copy) ?

Hi. Do they still make TMS9900 CPUs (New) in one form or another ?? I know you can still get 'Old' TMS9995 etc but they are usually quite expensive. You also see a lot of old (Pulls) on ebay TMS9900,TMS9995,TMS9901 etc but you hear conflicting stories on their quality ? There is an official VHDL TMS9995 core ?? But I don't think it's actually been put onto Silicon ? I've also seen on the Forum talk of a ' 68689 ' but I've never seen one do they really exist ? Is there a datasheert for them ? So where is the best place to source TMS99xx ICs ?? it's all rather confusing !!

Can you still get the 68689 .. I've never seen one !!

I suppose there's several ways to do this.. 1) Approach several commercial companies that do this sort of thing and see if they are interested ? Though they'll be looking at things purely from a financial MONEY point of view. There's also the matter of Intellectual Property right which are probably still owned by Texas Instruments, so they'd want a cut ! 2) Once you've got a working prototype (even one just on an Altera DE Board) then you could do Crowd Funding to generate enough Money to get a limited production run.. But who would back it ? 3) If you've got the Guts and the Money just do it yourself .. get several quotes from companies doing this sort of thing and do a production run yourself... though this will be VERY expensive !

Just do some CROWD Funding or something.. raise some CASH then go to a reputable company and get a Quality professionally one made !! Otherwise it'll NEVER Happen !!

??? So what's happening with the Colecovision 2. Is anyone building one ??

Is anyone building any Homebrew Hardware ??

Hi. I was just wondering has anyone designed/built a replacement TI-99/4A motherboard, something that will fit into a TI-99/4A case ?