UOLisp Available for Download

Dr. Jed Marti, author of UO-LISP for the Model I, has OK’d making UO-LISP available for download! Links are live on the various pages, but they are summarized here. Special thanks to lambdamikel for scanning the documents and to Paul McJones from Software and for finding Dr. Marti’s email address. Software links, other than the below, will be live after the holiday:

Catalog Cover

Newsletter Vol 1 No 1

Newsletter Vol 2 No 1

Newsletter Vol 2 No 2

Newsletter Vol 2 No 3

Newsletter Vol 2 No 4

Software Manual

Tutorial Guide

Click to download the disks … UOLisp v1.5B for the Model I (DMK)

For more context and history on Lisp, please visit

Dave Ahl puts Work into Public Domain

Dave Ahl has posted to his Facebook page that

PUBLIC DOMAIN. This is a public notice that I am formally placing everything that I have written or edited into the Public Domain. That includes material that may or may not have a copyright issued to David Ahl, Creative Computing Press, Ahl Computing, Ideametrics, SBI, DEC, Military Vehicles, Ziff-Davis, or SwapMeetDave. My desire is that this material be used for educational and historical purposes and not for profit or personal gain of others. (I did this years ago, but someone wanted a public notice, so this is it.)

I will be making all Creative Computing and Dave Ahl stuff available for download.

TRS80GP v2.4.8 Released

TRS80GP has been updated to v2.4.8. Release Notes:

New Features:

  • MC-10 Emulation
  • Memory access breakpoints for 6800, 6803, 6809 and 68000 processors.
  • Bus trace for 6800, 6803 and 6809 processors.
  • Debug -> Symbol Table to view all symbols from loaded .bds files.


  • Unbreak -m4b and -m4c as they were not removing wait states.
  • Help in MacOS menu now opens the trs80gp manual.
  • Turbo turns off Haste mode and vice versa.
  • Cassette image can be ejected and shows currently loaded file in menu.
  • Ctrl-A now selects all text in the printer window on Windows.
  • Removed spurious FreHD menu from DT-1, Videotex, Electric Crayon and MX-70.

Visit the TRS80GP Web Page for the download and information, or here for the emulator.

June 2022 Issue of TRS8Bit Released

Dusty has released the June 2022 issue of the TRS8Bit newsletter. Here’s what he had to say:

In this issue, Egoitz Campo sends details of the recent Basque Tournament. A brief history of computer storage by Anna and her Dad, supplied by Kelly Ackford. George Phillips sends a one-liner optical illusion. Jay Newirth shows just what and where M3/M4 case screws live. Microcore Labs report on their MCLZ8 emulator. Ian Mavric gives a fully detailed account on repairing the M1 cassette I/F. Paul Thomas Metcalf III has a super upgrade for his M1, using a Gotek. Harold Finch stretches our minds and even I have a go too! There’s an update on the SVI-CAS. E.T. Fonehume sends a VERY addictive one-liner. Don’t believe me? Just try only playing it once! One of Lewis Rosenfelder’s super-help programs features in Assembler Bytes Back. How’s your 2022 Competition entry coming along? You’ve got to be in it to win it! There’s details of an EPROM programmer for the M1/Video Genie. A few of the recent U.K. Ebay bargains and finally, Kevin Parker sets about re-capping a Model 2 in his big Tandy’series.

You can view the table of contents here and the issue can be downloaded from Dusty’s web site.

Model I for Sale for Local Pickup, New Hyde Park, NY

Update: Claimed!

A site visitor has a Model I to sell to a good home for local pickup only (as Model I’s tend to shatter when shipped). Local pickup would be New Hyde Park, NY (right off lakeville road and Union tpk).

Includes Model I with lowercase chip with descenders, and the Homes speed up with a Z80B, expansion interface, rs-232 card, Orch-85 clone, 4 disk drives, and various manuals.

Those interested please reach out to kensperling @ gmail . com