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Site Computer News

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Latest News - November 2021

  • Due to popular demand (OK, Martin asked), I have made access to the pages on disassembling Memotech hardware more obvious and linked to them from the Repairs index page
  • Added some info to my MTX PSU page to document the internal fuse fitted to some MTX PSUs supplied to Europe. The presence of this fuse makes no sense to me - if you can explain it, please let me know.

 

October 2021

  • Nothing to report

 

September 2021

  • Martin has provided a Bug fix for the CFX-II ROM

 

August 2021

  • Nothing to report

 

July 2021

  • Nothing to report

 

June 2021

  • Added another game disassembly from Martin - Goldmine
  • Bill Brendling has ported Z-Machine (an interpreter for Infocom text adventures) to the MTX. Bill's description of the process and links to download it are available here.

 

May 2021

  • Posted a copy of Martin's upgraded version of his Z80 assembler for RISCOS
  • Martin has also started to share some disassembled code from MTX games that he has worked on. I have created a new page for them here. They should be instructive for novice, or even experienced, Z80/MTX programmers. If anyone else has similar stuff to share, please let me know and I will add it to the page.
  • Added Martin's latest program disassembly (Toado)
  • Added Martin's source and listing files for Text Mode Invaders, released at Memofest 2014
  • Added a new game, "Minesweeper", developed for MSX and ported to MTX by Under4mhz
  • Added a new game, "Vexed", developed for MSX and ported to MTX by Under4mhz
  • Added a new game, "Klondike Solitaire", developed for MSX and ported to MTX by Under4mhz

 

April 2021

  • Updated MTX Sales page to reflect recent increases in eBay prices for MTX
  • Updated MTX Survey page and associated statistics
  • Added some information about the workings of the piggy-back language ROMs to the keyboard page, based on Martin's disassembly of a couple of the ROMs
  • Added high res scans of the Chess, Draughts and Toado posters scanned by Mikael Anker Madsen and uploaded to archive.org by Claus. Available here on my Nick Mynheer artwork page

 

March 2021

  •  Nothing to report

 

February 2021

  • Another item for the collection! Jonas O'Brien in Norway recently advertised a Norbit Elektronikk Toolbox '85 on eBay but decided to donate it to me instead. The similar looking Toolbox '84 was advertised for use with MTX. The '85 has a slightly different lead and I/O sockets, but otherwise looks identical. Jonas also sent me an unmarked unit with the same lead and sockets as the '84 model for the MTX. Sadly, I don't have any documentation for it, but it's a great find!
  • Now that the much improved ReSource is available, I will make the original version of The Source available on request to anyone that can provide other Memotech documentation that is not already on the site - contact me if this applies to you.

 

January 2021

  • Expanding on Martin's original, Bill Brendling has contributed updates to ReSource
  • Another update to ReSource, this time by Martin, adding the details of his Diagnostic ROM board
  • Posted a review of the MTX500 from What Micro? of March 1984 (Courtesy of Rob Green)

 

December 2020

  • For all you budding MTX programmers out there, Martin has produced an updated version of "The Source" - originally written by Keith Hook as a guide to programming the MTX in assembly language. Martin's version is updated to include modern MTX add-ons, including MAGROM and CFX. Download available on my MTX Manuals page

 

November 2020

  • Bjørn-Tore Boberg has sent me photos of his newly acquired MTX512 with a Norwegian keyboard & ROM
  • Bill Brendling has developed a fantastic FTP Daemon for Martin's NFX hardware - see here for details
    • With NFX hardware and FTP, the MTX is now really at home on my network!

 

October 2020

  • Bill Brendling has created a FTP server for the NFX hardware. The Server makes transferring files much easier, allowing the use of FTP clients such as FileZilla and CoreFTP. (FileZilla is available for Windows, Linux and MACOS, CoreFTP is available for Windows only)

 

September 2020

  • Bill Brendling has made some significant enhancements to Andy's NFX.COM program for the NFX hardware. The program now supports directory listing and allows the network parameters to be set from a configuration file.

 

August 2020

  • Martin has sent me one of his NFX prototypes to experiment with - thanks a lot Martin!

 

July 2020

  • Not really "news", but I thought that I'd take this opportunity to post a reminder about my PC Keyboard interface
    • Designed in conjunction with Bill Brendling and Martin Allcorn, it's a small interface that fits inside the MTX case and provides the ability to use a PC USB or PS/2 keyboard with your MTX. If you do much typing on your MTX and your original keyboard suffers from sticky or bouncing keys, this makes the MTX much more useable. I'm surprised that it has not been more popular than it has.
  • Bill Brendling has provided an update to his fork of MEMU with a couple of minor "fixes"
  • Bill has also made a "tape" (.mtx) version of his Scroll Lock mode driver for the PC Keyboard interface
  • Added a copy of the Personal Computer World review of the RS128 from October 1984
  • Added a copy of the PCW "TJ's Workshop" article on MTX Joystick use from October 1984

 

June 2020

  • Arpad Virag has just shared more scanned copies of Memotech User Group magazines - thanks Arpad!
  • Jim Wills (Megastar Games) is making efforts to port DownStream Danger to modern hardware. As part of that process, Martin Allcorn has been able to recreate a full map of the game levels, as well as 20 levels from Rolla Bearing. Jim has agreed that the results can be posted here (but see the restrictions on re-use on the page.)
  • During this exercise, corruption in the original map file for Rolla Bearing was discovered. Rolla Bearing is included in the MAGROM image, a patched image can be downloaded to replace the current MAGROM ROM image.

 

May 2020

  • Lots of new updates from Bill Brendling :
    • Updated (200510) version of his Z80 Assembler written in Python
    • Updated (200510) version of his fork of MEMU with CFX/CFX-II support etc.
    • Updated (200510) version of the Propeller code and Z80 ROM for CFX-II
    • Along with a comprehensive description of the Video Modes available in 80 Column CFX-II BASIC

 

April 2020

  • Nothing to report

 

March 2020

  • Nothing to report

 

February 2020

  • Nothing to report

 

January 2020

  • Added a copy of the 1988 Texas Instruments, TTL Logic Data Book to the Technical Library
  • Posted an audio file of Maxima (Courtesy of Lars Muldjord)

 

December 2019

 

November 2019

  • Bill Brendling has created pre-built binaries for his fork of MEMU. Bill has also created a help page which describes the various builds for Linux, Windows and Raspberry Pi (Raspbian and Bare Metal versions). See here for details.
  • Uploaded various Memotech documents provided by Claus Baekkel, including . . .

 

October 2019

 

September 2019

  • Arpad Virag has just sent me scanned copies of Volume 1, Issues 2 & 3 from the Memotech Owner's Club magazine, they are now available to download from the Memotech Owner's Club download page.
  • The FDX system previously used by the Memotech Owner's Club was sold on ebay in July. Along with the system, the auction included a lot of software and documentation, much of which had been missing from my Memotech archive. The new owner, Arpad Virag, has kindly agreed to share much of this material with the group and has just sent me a scanned copy of Memopad Volume 00II, Issues 3&4 which is now available on the Memotech User's Group download page. 

 

August 2019

  • Memofest 2019 has been confirmed for Saturday 12th October at Andy's place (Southampton,UK)
  • Norman Lambert has kindly sent me the Pascal ROMPAK that was used with the MTX that he sent me in 2017.
  • Paul Daniels has updated his GameBase for Memotech, download available here (thanks Paul)

 

July 2019

  • The FDX system that was used by the Memotech Owner's Club was sold on eBay this month, along with the MOC software library containing some previously lost titles and miscellaneous club technical documents.
  • Memofest 2019 will be hosted by Andy Key in Southampton, see the announcement on Andy's site
  • Bill Brendling has released an updated version of his Python script for assembling Z80 code. The main improvement is to the handling of M80 code. The Assembler will now build the SDX ROM from the code on Andy's site.
  • Bill has also compiled a modified version of MEMU for Windows, it includes CFX-II emulation, as well as the ability to run Alan Cox's Fuzix (a lightweight version of the Unix System V kernel).

 

June 2019

  • Bill Brendling has released a Python script for assembling Z80 code. As well as supporting Microsoft M80 and Bill's own ZASM assembler, it also supports Martin's "home brew" assembler, allowing Martin's code to be compiled by users who don't use RISCOS.
  • Bill Brendling has released an updated version of his Bare Metal version of MEMU for Raspberry Pi
  • Posted a copy of the MTX Communications Manual on the Manuals Page (Courtesy of Stephen Usher)

 

May 2019

  • Bill Brendling has released an updated version of his Bare Metal version of MEMU for Raspberry Pi
  • An incompatibility between CFX and the original RS-232/FDX Interface board has come to light. As with REMEMOrizer, the FDX interface must be disabled to allow CFX to work when installed in a machine with an RS-232 board fitted. Martin has generated new GAL firmware that can be loaded into a GAL16V8 and used to replace the Lattice PAL on the RS-232 board. The source and binary files are available on the CFX page. If you cannot program a new GAL yourself, please contact me if you need CFX to operate in tandem with the RS-232 interface board.
  • Martin has completed his System Diagnostic Cartridge (SDC) prototype, it has lots of nice features, including a built-in hex editor and disassembler. You can read about it here

 

April 2019

  • Martin has been working on a plug in board to help diagnose MTX boot problems, we have called it the MTX System Diagnostic Cartridge (SDC). You can read about it here

 

 

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2012  2013  2014  2015  2016  2017  2018  2019

 

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