Ok, I see, thanks; so it's the same version as implemented in OBNC posted above. It's the last version Wirth specified, and quite different from the versions us

Ok, I see, thanks; so it's the same version as implemented in OBNC posted above. It's the last version Wirth specified, and quite different from the versions used for the Oberon systems 2, 3 and 4 in the nineties. Personally I consider Oberon-2 the most useful version, but I still had to get rid of a lot of orthodoxies to really use it in my projects (see https://github.com/rochus-keller/Oberon https://github.com/rochus-keller/Oberon). Your Forth implementation is fascinating.