September 2026
Meeting Notes

Compiled by Dave Jaffe

Contributions from Kevin Appert and others


SVFIG on Google+ Hangout: long url - tinyurl

SVFIG on Google+ - SVFIG on YouTube - SVFIG on YouTube Live - SVFIG on MeetUp

SVFIG YouTube Channel

Zoom Chat     Screenshot

09:30

Start of the Meeting - Kevin Appert, SVFIG Program Chairman

09:30

Announcements - Kevin Appert, SVFIG Program Chairman

  • EuroForth 2026 Meeting
  • Forth Day in November

9:37

Forth Haiku Survey- Brad Nelson
Brad conducted a review of recent Haiku contributions.

10:07

How to Achieve Financial Independence - Bill Ragsdale
Bill demonstrated an Excel application he wrote that serves as a Retirement Planning Aid.

10:31

Implementing Exceptions in Z79Forth/A - François Laagel
François prresented a talk he gave at EuroForth this year.

11:06

Screenshot

11:36

CoSy Update - Bob Armstrong
"Forth is a trunk language."

Video (25:26)

12:00

End of the Meeting

Not presented

A|I Programming Language - Earl Moreo
"A formal language, based on Forth's stack organization, would make A|I more responsive, give it a STOP and an END command, and make Alexa's intransigence less common. The call statement for the language goes in a cartouche (like the command line on my HP computer.)"

Not presented

Radio Direction Finding in Forth - Andy Korsak KR6DD
“It took a few years of rework and debugging, but now I have a working program to generate 'perfect test files' that are raw S16LE 48kbps stereo data files for my RPiDDF engine to read simulated bearings data when in recorded data playback mode. I am now checking out the RPiDDF engine running in live data mode.”:

Not presented

Character Display Draws Text onto Bitmap, in Forth - Samuel A. Falvo II
"In this video, I demonstrate a complete 'display driver' which draws fixed-width text onto a bitmap, similar to how Sinclair Spectrum and ZX-series computers work. I also show an approach to unit-testing in Forth which I find particularly convenient, at least during development."

Not presented

The Hen Language: An Experiment in Reinterpretive Programming - Justin Kendrick
"Classically, Forth application writing typically starts with primitives combining them into higher- level words, and using those words to construct a program. But I often want to factor in the opposite direction: run the same high-level program, but swap out the interpretations of the words. Hen is an experiment in adding this capability to Forth. It leads to some interesting patterns, and avoids the boilerplate of dependency injection in C++ and the complexity of monad transformers in Haskell."

Future

CoSy Update - Bob Armstring
"I can talk on progress toward eclipsing the trade computing environments with Forth CoSy for the ultimate target market of female entrepreneurs who consistently compare CoSy with Evernote and Notion, both of which have ~ $B valuations after a couple of $100m investments. But both don't have the radically open foundation provided by Forth. (Notion does evolve from SmallTalk.) "

Automatic Differentiation in Forth - Brad Nelson
"I'll explore using Forth Recognizers to implement automatic differentiation and explore differential programming."

Forth Recognizers in SwiftForth
Automatic Differentiation
Differentiable Programming

Windows Shell Support in Win32Forth - Bill Ragsdale
Bill will examine the three levels of direct user's Forth interface to a Windows based PC.

Creole Forth and Picar-X, Part 2 - Joseph M. O'Connor
Joseph will continue his presentation of Creole Forth for Python which he used to develop commands for the Picar-X robotic car.

Smart Token System - Don Golding
Don will discuss a combination of Color Forth constructs: a packet like structure for the cell.

Getting Started with arrayForth - Greg Bailey
"I will present a video on the simple process of downloading, installing, and using arrayForth 3."

Direction Finding - Andrew Korsak
Andy is planning to present this application.

Building GUIs in Forth, without the Gunk - Xuyang Chen

Fiji - Jack J. Woehr
Fiji
Fiji Language

The Game of Bridgit - Bob Armstrong

Other Items:

Forth for MSP430
Forth Tutorials
Forth CPUs
Forth Articles and Blogs
Forth Programming Books
Forth Jobs - submitted by Dennis Ruffer
Other Jobs
Green Arrays
Forth People
Samuel A. Falvo's YouTube Channel
Products in Forth
Misc Forth Stuff
JForth Programming Language
Character Display Draws Text onto Bitmap, in Forth (video 36:38)
What is this programmming language? Quiz 7
Forth Standard - website of the Forth 2012 Standard and Forth 200x committee
Jones Forth
Starting Forth
Computers
Components
Software Applications
Space Applications
Space stuff
Programming Languages other than Forth
Operating Systems
Utilities
Hardware
Other Books and Magazines
Manuals & Documentation
Articles
Applications
Stores
Robots
Games
Companies
Lectures
People
Surplus Houses
Meetings
Courses
Trade Shows
Podcasts
Personal Computer History
Use Forth to write a video game for the Radio Shack / Tandy Color Computer (with the Motorola 6809)
The Fascinating Story of the Altair 8800, the Kit That Launched Microsoft and the PC Revolution (38:47)
Retro Computing
Retrocomputing - Forth for PDP-7
PDP-7 Forth
Tutorials
Forth Internals Quick Note - Dictionary Structure in Jones Forth
Education
Contests
Blogs
Other
Past Catalog Archive
Excamera Labs
Tools for debugging and building embedded hardware
Products
Substack

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