Ah! So you ARE *that* Richard Speed
The TMS9900 reference confirmed it. We met at a TI-99/4A meet over twenty years ago in Derby IIRC. T. Stevens and R. Twyning (first names redacted for privacy reasons!) are mutual acquaintences, I believe. Good to know its you! I'm the author of TurboForth for the TI-99/4A.
It keeps me out of the pubs.
Very cool article, thanks Richard!