Forth-41

[rprosperi]

(09-08-2022 11:30 AM)dmh Wrote:  After spending some time with Forth-41 I have more questions that I've been unable to find or workout the answers to.

How do you list user (or all) defined words? There's no WORDS command that I've seen in other implementations.

How do you clear/reset the buffers to free up memory and delete all user defined words and variables?

I've managed to load small simple files with LOADF but note that the flying goose stays on the screen when the load is finished and so there is no indicator that it has finished loading unless you press a key every now and then.

I have tried loading larger files but get periodic tones. I assume this is due to commands or syntax that Forth-41 doesn't support. How do I see what line is causing the problem (hopefully without manually keying in a line at a time)?

I'm a Forth beginner so these may be simple questions :-)

TIA, dmh

Most of these questions are system dependent, so the actual underlying code varies from system to system (e.g. the Forth standard does not specify how the dictionary must be implemented, only how it must behave from an external perspective).

A list of all used-defined words is typically called either VLIST or VCAT (Vocabulary List or Vocab. Catalog). Sometimes this comes built-in, other times not, but if not, it's usually one of the first things a community member writes and shares.

The 71B Forth manual is not at all tutorial in nature, but carefully reading it will reveal a lot about how to work with Forth systems - but only in a general way, since the 4-bit nybble orientation of 71B Forth is quite unusual (perhaps unique) and most of that sample code is platform-specific.