NX Forth


Timo 2018-11-03 10:22 (Edited)

by Edmund Griffiths 2018

Transform your NX console into a programmable rpn calculator, using a tiny floating-point dialect of the concatenative stack-based programming language Forth.

Type "vlist" for a list of the built-in words.

For more information about programming in Forth see "Starting Forth" by Leo Brodie, available in html and pdf formats at

(Many of the features described in the book are not supported by NX Forth!)

NX Forth.nx | Open in app
2018-11-03 10:22

was8bit 2018-11-03 16:50

So, no ability to define words and such, just strictly a calculator?

Sounds interesting... in its day it would have been fun to play with :)

SUB is kinda of a better version of this "define your own words" concept I think...

was8bit 2018-11-03 16:51

I own a HP scientific programmable calculator... that was fun to use :)

was8bit 2018-11-03 16:53

Oh wow, it's an antique already :0

Timo 2018-11-04 12:21

Looks like the original Forth is powerful enough to program anything you like (even an OS). But this interpreter just executes single lines, so you cannot do a lot more than with a calculator.

was8bit 2018-11-04 16:24

Well, I'm glad you made this :) I copied the PDF manual, (huge) and it's a fun read :)

This project you made here is fun too :)

Timo 2018-11-04 16:29

It’s not from me, see credits, I posted it for him. He may create an account later.

was8bit 2018-11-04 17:00


Well, I'm glad it's here :)

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