Author Archives: Quentin

About Quentin

Im just a normal bloke.

Retro emulation

Posted on 21st August 2020 by Quentin

I have written about a number of projects that I have done in recreating old computers like the HP2000/Access and the DEC PDP-10. To give this some impact and a sense of how these might have been used in the … Continue reading →

Posted in Retro Computing | Tagged , , , , , , , | 12 Comments

Trekking to Angel Falls

Posted on 15th June 2020 by Quentin

I’m finally putting online some of my old trip videos from the early 2000’s. This one is my trip to Angel Falls in 2005. This was a two day trip starting from Canaima, which itself is a long way into … Continue reading →

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Building MUD 86 from source

Posted on 8th December 2018 by Quentin

To build the 86 source you first need to get the MUD sources to your TOPS-10 host. I suggest that you use kermit to transfer it to a PPN of [2011,2776] as that is where we need to work. Alternatively create … Continue reading →

Posted in Retro Computing | Tagged , , , , , | 15 Comments

Building MUD 84 from source

Posted on 8th December 2018 by Quentin

To build the 84 source you first need to restore the MUD.TAP tape to your TOPS-10 host. I suggest that you restore it to a PPN of [2011,2776] as that is where we need to work. See the FAQ for … Continue reading →

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A drier part of the Swamp

Posted on 8th December 2018 by Quentin

Since getting a working version of MUD on my TOPS-10 system using the binaries from the MUD tape, I have been wondering why I can’t get it to work from source. Whilst investigating this I have found a number of … Continue reading →

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MUD from Tape

Posted on 9th April 2018 by Quentin

In my last journey towards MUD I found that the source files in the zip archive from Stanford are incomplete. I managed to get hold of a key missing file as scanned hardcopy, but this still had errors in it … Continue reading →

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Getting in the MUD

Posted on 27th March 2018 by Quentin

Now that TOPS-10 and BCPL is fully operational, the next step is to wade into the MUD. MUD is provided as a set of source files in a mix of BCPL and MACRO-10. Having downloaded the tape from GitHub and … Continue reading →

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Fixing BCPL

Posted on 27th March 2018 by Quentin

The BCPL compiler to executes successfully and the BCL: ersatz device exists in the monitor but the compiler seems to be producing code which is executing at an illegal memory address. So how do we fix that? Not being familiar … Continue reading →

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Tops-10 FAQ

Posted on 27th March 2018 by Quentin

I have added a new Tops-10 FAQ page with questions that I had as I got my system up and running for BCPL and MUD1.

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Installing BCPL

Posted on 25th February 2018 by Quentin

Having completed the pre-requisites for BCPL, it should be a simple matter to install BCPL using the BUILD.CTL job that is included with the BCPL files on tape. First, boot Tops-10 with the amended system that was generated with MONGEN … Continue reading →

Posted in Retro Computing | Tagged , , , , , | 3 Comments