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FORTH for the SHARP PC-E500 (S)
10-06-2021, 11:35 PM
Post: #22
RE: FORTH for the SHARP PC-E500 (S)
(10-06-2021 02:41 PM)robve Wrote:  When an error occurs, the error occurs in the definition of the first word displayed by WORDS. The definition is incomplete, so it cannot be executed. But WORDS displays all words, including incomplete ones.

I've noticed that if there is an error in a definition, the corresponding word cannot be deleted from the dictionary with FORGET. I have to delete the previous valid definition if I want to get rid of this false entry. Is this normal?

(10-06-2021 02:41 PM)robve Wrote:  It would be nice to add more examples and additions to Forth500. For example, implementing SEE would be nice, e.g. to load from see.fth. These words should be optional, otherwise adding these as built-ins eats away free space. On an unexpanded machine the Forth500 free space will be about 7K after adding the floating point words. I don't want to push that down much lower. It was possible to reduce Forth500 below the 20628 bytes that pceForth required. I am pleased with that, because Forth500 adds words and new features (see the changelog in the repo).

I'm too in favor of simple systems. When I tried different Forth packages some years ago, I found that F-PC Forth has 1523 words! I think this defeats the purpose of Forth.
Adding optional definitions for those who are interested is a better solution.

Jean-Charles
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FORTH for the SHARP PC-E500 (S) - Helix - 09-06-2021, 11:41 PM
RE: FORTH for the SHARP PC-E500 (S) - Helix - 10-06-2021 11:35 PM



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