Very brave attempt to utilise one of the first 16bit (internal) CPU's, expensive though as it had to be accompanied by expensive SRAM tried to it's local bus specifically for register storage only
Besides it utilises one my fave all time VDP chips, the Texas TMS9929, which went on to later fame as part of the MSX spec...as well as the Memotech MTX & Tatung Einsteins.
the 2nd version as used in MSX2 was amazing allowing up to 512 colours with 256K VRAM & used in so many arcade machines of the day...
Anyway back to the topic, and I hope you find what you are after.
lol i loved the ti99 and yes it was the first attempt to use a 16bit cpu but...
hope as i did that it would be a success (as a kid) there was not enough ram in the thing, BASIC was soooo slow , extended basic slightly better and the only good software (games!) were on modules.
a few years ago i have a lot of ti99 stuff but sold it all under instruction of my then girl friend - she's gone now
i had...
ti99/4a
PEB expansion 5.25 & 3.5 disk drives & two original texas instruments external drives
joysticks
speech
books
100 or more modules
and manuals from an ex-programmer who wrote the football game module for texas instruments france in 82.
It definitely is an interesting design; if only they'd actually put more than 256 bytes of 16-bit RAM in the thing, it could have been a decent contender. Ah well.
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