February 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
Send suggestions for "interesting stuff".

09:31

Unix Revisited - Greg Bailey
“I will share a little extemporaneous humor about revisiting unix / linux / whatever after 35 years away from that environment; I've been asked to put arrayForth-3 on that platform and am finding the process amusing.”

09:54

Beyond Bitcoin & Forth BBF002: AGI Self Identity Using Hash of Public Key & Reselling AI Server Tokens with Omnihash - Liang Ng
“I will outline the theoretical principles and practical challenges in linking Artificial Intelligence server systems to web based application, in order to prompt AI agent to 'know thyself', with self identity based on the hash of public key, and the prospective monetary value of Omnihash for enabling a decentralised market for sales of AI GPU tokens.“

10:31

Screenshot

10:32

GateMate is for Forth - Christopher Lozinski
“The $15 GateMate is a great FPGA for building Forth soft cores. It will happily run at 100Mhz or more. It has 64 x 1 K word long x 20 bit wide block RAMs (BRAMs). 20 bits wide is enough for most real time control applications. The memories can be joined with hard core connections, so a J1 can be a lot smaller and thus faster on this device than on the original ICE 40 devices. There are enough resources to build six J1s on a ring network with room to spare. If you build a J4 barrel processor, then you can have 24 soft cores. Or you can buy a single GateMate chip with 25 GateMate FPGA interconnected cores and have 600 Forth Soft cores on a single die. The Mecrisp Ice Forth interpreter requires about 5K of RAM, a customasm application requires less. If you replace Forth with customasm, then you could give a stack machine 1K words of memory and 1K words of program memory, which would give you 64 cores on a single GateMate, or 1600 soft core stack machines on the largest. GateMate chip. And you can connect them in whatever topology you want. All that we need is an application.”

Video (29:29)
Slides

10:29

Stackless Forth - Progress Update, Details, Performance - Nelo Mitranim
Melo will talk about his version of Forth that does not employ a stack. Here are his presentation points:

  • 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 (48:14)
astil_forth
Nelo Mitranim

11:50

Zork and Mailing List Update - Kevin Appert

12:58

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

F83 Project - Andrew McKewan
"I can share a project for an F83-ish x86-64 Forth to run on my Linux laptop."

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
Books on Forth offered on Amazon compiled by Juergen Pintaske
Links to Books on Forth compiled by Juergen Pintaske
Manuals & Documentation
Articles
Applications
Stores
Robots
Games
Companies
Lectures
People
Surplus Houses
Meetings
Courses
Trade Shows
Podcasts
Personal Computer History
Retro Computing
Hobbyist builds retro Apple Macintosh inside toy clock
The Internet Formed in the 1960s - How Did It Start?
Design Ideas Book for the CDP1802 COSMAC Microprocessor
The archivist preserving decaying floppy disks
Tutorials
Education
Contests
Blogs
Other


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