[sdiy] TI-99/4A chips?

Aaron Lanterman lanterma at ece.gatech.edu
Sat Sep 26 20:21:33 CEST 2009


On Sep 26, 2009, at 1:05 AM, Eric Brombaugh wrote:

> See here:
>
> http://en.wikipedia.org/wiki/Texas_Instruments_TI-99/4A
>
> It wasn't based on the Z-80, it used a proprietary processor that TI  
> made. Had some pretty cool video processing for its day - had decent  
> color handling, sprites and other little goodies. Sound came from an  
> SN94624 - similar to the SN76489 (for a tie-in to all the noise/ 
> chiptune stuff we've been talking about recently).

If anyone really wants to get into TI-99/4A stuff, they should drop a  
line to an acquaitance of mine, Joe Zbiciak im14u2c at primenet.com - his  
day job is doing computer architecture stuff at TI, and in his spare  
time he's really into retrocomputing. I think he's been scanning a  
bunch of old TI-99/4 documentation, particularly info on some of the  
custom chips.

He's also an Intellivision fanatic, and has wrote an emulator and an  
SDK for it.

- Aaron



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