TRS-80 Trash Talk Live # 11

Announcements and inquiries from TRS-80 Trash Talk Live # 11:

  • Quentin Barnes is looking for a working copy of Quartus II v9.0 or earlier to assist the creator of the Catweasel in updating the Catweasel. If you have any information or can help, please contact me.
  • Arno Puder has gone over some updates to his TRS-IO card allowing it to do floppy disk emulation, printer port access, and any other memory mapped I/O. Arno also hopes to use bluetooth to access game controllers in upcoming versions.
  • Arno also went over the PocketTRS which is a tiny card which emulates a Model III, and has a 50-Pin Bus for hooking actual Model III hardware. They are working on v2.2 which will improve WiFi connectivity.
  • George Hines, creator of the Floppy Remapper, announced his latest project, a Model I which uses a EEPROM Header Mod to permit switching between Level I and Level II.
  • Tandy Assembly is currently scheduled for October 1-3, 2021 in Springfield, Ohio.
  • Pete Cetinski has archived RM Cobol Operating System for the Model 16. Peter Phillips is using it to fix some bugs in TRS80GP’s emulation of the Model 16.
  • Dusty mentioned that articles for the March issue of TRS8BIT are needed by end of February.
  • Ken B is working on scaning the Tandy National Parts microfiche.
  • Pete Centinski, Joe Rounceville, and Al Schemmer have been added to the TRS-80 Repair-people page.
  • Steve Hall has agreed to take on the task of providing boot disks those of in the U.K. and E.U. Information for reaching out to Steve can be found on the Diskette Request Form shortly.

January 5, 2020 – TRS80GP v2.4.1 Released

TRS80GP has been updated to v2.4.1. Release Notes:

  • Critical bug fix where .jv1, .jv3 and .imd disk drives were not saving changes.
  • Windows version remembers window positions and display modes. This includes a notion of “instances” which have their own preferences and show “#2”, “#3”, etc. in their window title.
  • FreHD firmware and boot versions to 9.08 and 7.06 to avoid frehd.rom bugs.
  • Command line -sx option to disable audio output entirely.
  • Unmapped memory regions now display in debugger as ~ff (or ~00 on the Model II).
  • Keyboard input can be fed in via TCP/IP with -ip @port or Keyboard -> Connection.
  • Don’t crash when given a floppy image for DT-1, Videotex or “-b 0” for DT-1.
  • MacOS wasn’t filling in disk view hex data or debugger hex data.
  • Z-80 debugger wasn’t updating I and R register displays in MacOS.
  • Linux custom colour picking works now.

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

CLAIMED: CoCo Available (Free for Local Pickup or Will Ship for $20+Shipping)

Update: Claimed

Coco for free near Orlando, Florida.

Owner says it warms up when I turn on the power, but doesn’t have the cables to connect it to a tv to see if it works. Original packaging but the cardboard is a mess.

Free for local pickup for will ship for cost of shipping + $20.

If interested, please Contact Me. I will pass along emails in the order they arrive

Catweasel Software v4.6 Released

Quentin Barnes has releases v4.6 of the Catweasel Tools originally written by Tim Mann.


  • Skipping over 4.5.x versions since George Phillips had used that point release line for his work.
  • Git repo “cw2dmk” of Tim Mann’s work was created by ezrec (Jason S. McMullan). Transferred to qbarnes.
  • Switched Linux release binaries to be for 64-bit OSes.
  • Added change from George Phillips for his “join” (-j) feature that will join different rereads of the same track and merge good sectors.
  • Fixed problem of missing data between index hole detect and read started. This should noticably reduce disk read errors and even occasionally dropping of entire sectors.
  • Added change to allow cw2dmk tools to function on newer Linux releases by enabling PCI I/O space access if disabled.
  • Added change to recognize and skip factory-formatted sides of a disk. Controlled with -b option.
  • The subdirectory “cwsdpmi” is now a git sub-module for picking up the “cwsdpmi.exe” binary for MS-DOS.
  • Cleaned up and merged multiple makefiles for different environments into one. Makes it easier to maintain, build, and cross-build. By default, the Makefile will now only build for the native OS. See the new file for further information.
  • Created subdirectory “firmware” for holding firmware related files including a LICENSE file. I also received some additional documentation from Jens Schoenfeld on programming the MK3 and MK4 and a file with firmware revision history saved here as firmware/Changelog.
  • To be less generic, renamed “testhist” binary to “cwtsthst”, still keeping to MS-DOS’s 8.3 file naming convention.
  • Update code base to be 64-bit clean. Fixed all known problems but some may remain.
  • Changed to using semantic versioning for version ID.

You can download from Github..