Category Archives: Retro-Computing

Flocoder Flip Progress

Posted on July 30, 2018 by rjarratt

I haven’t been doing much in the vintage computing arena recently, but I have finally got around to finishing off my crude implementation of Flip. The source code is up on GitHub. My first attempt didn’t work very well. I … Continue reading →

Posted in MUSS, Retro-Computing | Leave a comment

MUSS Source Code Now Available

Posted on July 3, 2018 by rjarratt

I have received qualified permission to publish the MUSS source code that was recently recovered, as free and open source software. It is available here. I have also made a bit of progress on the MUSS restoration. My implementation of FLIP … Continue reading →

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Flocoder

Posted on May 12, 2018 by rjarratt

I have now got a crude implementation of the Flocoder Flip program written using Flex and Bison. It can take a Flocoder file from the MUSS sources and extract what I hope is compilable MUSL code. The code is on … Continue reading →

Posted in MUSS, Retro-Computing | 4 Comments

MUSS GitHub Project

Posted on May 7, 2018 by rjarratt

For anyone who wants to follow the effort to revive MUSS, I have started a project on GitHub. You can find the repository here. The initial effort is focussed on creating FLIP to translate the Flocoder to compilable MUSL and … Continue reading →

Posted in MUSS, Retro-Computing | 1 Comment

MUSS Source Code

Posted on May 3, 2018 by rjarratt

  MUSS is the Manchester University Software System. It is an operating system that was designed and built at Manchester University for MU5, designed to be portable, and in fact ported to other machines. In October 2017 I asked the … Continue reading →

Posted in MUSS, Retro-Computing | 5 Comments

Another DEC Rainbow 100+

Posted on March 17, 2018 by rjarratt

I recently acquired another Rainbow 100+. Here is a picture of it: This came about because a little while ago I was given a Rainbow, and the person who gave it to me had a second one that he was … Continue reading →

Posted in Retro-Computing | 5 Comments

More Leaking Batteries

Posted on February 26, 2018 by rjarratt

I haven’t been very active lately because I have had to temporarily relocate my collection. While moving it back again I took the opportunity to reorganise things a bit. In doing so I came across the first two PC motherboards … Continue reading →

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Update on H7826 Power Supply Repair

Posted on January 1, 2018 by rjarratt

It has been a while since I last posted anything about what I have been up to. However, I have been busy trying to find out what is wrong with the H7826 power supply out of my TURBOchannel Extender. I … Continue reading →

Posted in DECstation 5000/240, Retro-Computing | 2 Comments

Repair Progress on the H7826 Power Supply

Posted on November 5, 2017 by rjarratt

I have been working on the H7826 power supply that came in the TURBOchannel Extender of my DECstation 5000/240. Normally, after a visual inspection, I will just apply power to see if a PSU works. This one, though, was not … Continue reading →

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Imaging RD51 From a DEC Rainbow 100 Model B

Posted on October 29, 2017 by rjarratt

I recently acquired a DEC Rainbow 100 Model B, with a working RD51 disk. The disk is running MS-DOS 2.11. I want to preserve the contents of the disk before it fails. A while back I acquired the MFM Emulator board designed … Continue reading →

Posted in Retro-Computing | Tagged | 3 Comments