Overview of Jones FORTH ported to PleX.
The annexia.org website referred to by Richard Jones in his documentation is no longer available, but Jeremy Rose has kindly provided a mirror Github site:
https://github.com/nornagon/jonesforth
Examples of smaller FORTHs are:
SectorForth
MiniForth
MilliForth
Lots of books and articles, e.g.
Starting Forth
Program Forth
Thinking Forth
The FORTH playlist is https://www.youtube.com/playlist?list=PLI2uGjCObnyQdxmhb-aeyIGSfOltEOba5
The full PlasMa playlist is https://youtube.com/playlist?list=PLI2uGjCObnyTZ5FLeW3wmIPQseOdsQ1p6 More details, including the Build Guide document and other downloads for the PlasMaSim simulator and Plasm assembler, at http://www.philizound.co.uk/plasma/plasma.html
Red LED PlasMa built by Matthias:
https://photos.app.goo.gl/tUmLnPoyKRZi9eqj8
