March 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

09:31

Announcements - Kevin Appert, SVFIG Program Chairman

09:32

Finding Parts & Turning PCBs - Greg Bailey
"I'll lament about how interesting it is to find parts at this time in history, and how outrageously expensive fast PCB prototyping has become within the US."

10:10

A Simple Forth: From F83 and Back Again - Andrew McKewan
"This new 64-bit indirect-threaded Forth has lineage from F83, Win32Forth, and other personal Forths, along with community influences. I'll talk about two things:
1. Bootstrapping a new Forth model on a host OS
2. Inner interpreter model & x86-64 implementation"

10:45

Screenshot

11:10

Evolutionary Threaded Interpretive Language (ETIL) - Mark Deazley
Mark spoke about Evolutionary Threaded Interpretive Language (ETIL), a modern reimagining of Forth with 64-bit integers, reference-counted heap objects, dense linear algebra, MongoDB, and a full MCP server.

Video (28:51)
Slides
Evolutionary Threaded Interpretive Language (ETIL)
Interpreter and MCP Server
Python Text "TUI" used with MCP Server
Standalone Web-based Interpreter
Executable
Help Documentation (at end)

11:39

CoSy Update: Aligning Cats - Bob Armstrong
Bob talked about how to organize the Forth Language Community.

  • Register-based calls: how to keep register allocation simple
  • Exceptions the right way: ABI compatibility with C
  • Bi-directional C interoperation
  • Comparison with stack-based calls
Video (22:52)
CoSy March Newsletter
Aligning Cats phoro

12:01

End of the Meeting

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
Products in Forth
Misc Forth Stuff
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
Did You Know Apple Made a Digital Camera in the '90s?
How the Apple II Kickstarted the Personal Computer Era
Byte Magazine's Introduction to the Apple II - 05/1977
Retro Computing
Tutorials
Education
Contests
Blogs
Other

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