June 2009 Meeting Notes

Compiled by Dave Jaffe

Contributions from Kevin Appert and others


10:00

Coffee and a Chat

10:15

Dissecting thisForth - CH Ting
"I am trying to fully understand Wil Baden's thisForth to build my eForth in C. It is a daunting task because thisForth uses the M4 macroprocessor to build its C program. I even called Wil and can report that he is in good health at 81. I was able to delete all the optimization Wil put in thisForth, and kept it working. I will discuss how thisForth was constructed and some of its internal structures."

CH Ting's website
thisForth

11:40

Lunch
Lunch on-campus. To avoid the "noon lemming effect", we'll leave a little early.

12:30

Consensus-based Detour: New Guinea Sculpture Garden
On the way back from lunch we might detour to this interesting collection. (If we decide to do this, add 12 minutes to the start time of all items below.)

13:00

Introductions, Announcements, Rumors, Random Access

13:20

Rational Representation of the Irrational - LaFarr Stuart
LaFarr will say something about a couple different "words" that he thinks would be interesting in a stack-oriented language and possibly a bit about finding best fractions such as: 22/7 or 355/113 for Pi based on Continued Fractions (which involve pretty complicated mathematical proofs; but there are relatively easy ways to use the result, even with just a pencil and paper).

LaFarr's website

14:23

Break

14:32

Running FIG-Forth on Simulated National Semiconductor PACE and IMP-16 Processors - Eric Smith
Eric will present further discussion and demonstration of FIG-Forth running on a PACE simulator. Since last month, he's rewritten the simulator in C (it was in Java before) and added a simulated disk. He has started work on converting PACE FIG-Forth to an IMP-16 FIG-Forth with the eventual goal of running it on a "real" IMP-16 system.

15:17

Photos from Maker Faire 2009 - Dave Jaffe
One hundred and nineteen images.

Geneva Wheel

16:00

Adjourn


Other items:

Forth
Bill Muench E-Forth
Forth Freak
Forth Day 2008 videos
Livescribe Pulse
Compage homepage
General
Video
Target sells them for $150 & $200
Software
Download OpenCV - computer vision library formerly sponsored by Intel
Books
Learning OpenCV - O'Reilly book
Masterminds of Programming - book with a conversation with Chuck Moore
Other
Green Arrays - Chuck Moore's new company
Company website
Info on Chuck's website
Samson Stage 5T wireless microphone
AV-JEFE UR010/UB002 UHF 4 Channel 64 Frequency Selectable Headset Wireless Microphone

Meeting Announcement

| Home | 07/2009 | 05/2009 |