This is mostly a blend of FIG Forth, Forth-79, Forth-83 with elements of ANS Forth and Forth 200x. A *lot* of effort was put in to making it fast and tight. Direct-threaded. It outperforms Blazin' Forth by a substantial margin on what is essentially the same hardware. The NEXT routine runs in 15 clocks!
Another project goal was to make it work on my 1979 hardware, which doesn't include a disk drive of any sort. I feel that I've achieved that.