Pico MZ-80K software tests
As part of RetroChallenge 2024/10, I’m testing some old (and not so old) software on my Raspberry Pico MZ-80K emulator. BASIC programs (and link) Notes BASIC SP-5025 Supplied with the
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retrocomputing ephemera
The Raspberry Pico / Sharp MZ-80K emulator project
I’ve owned a Pimoroni Pico VGA demo base since the very early days of the Raspberry Pico. I bought it after seeing a couple of videos showing its capabilities, with
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The long goodbye
The Zilog Z80 has now had its final production run, but I’m sure there will be plenty of them still working away for the next few decades(*). For nostalgia purposes
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The Nine Billion Names of God
Sometime in the mid-1970s, my grandmother gave me a book of Arthur C. Clarke’s short stories. The first story in the book, The Nine Billion Names of God, was written
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The Valley at 42
It’s 42 years since Computing Today first published The Valley. It set a new standard for magazine type-in games as the code is designed to be portable, well structured and
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PuTTY configuration for the RC2014 ESP8266 module
Another note to self rather than anything else – a PuTTY version 0.78 configuration that works well for an RC2014 running CP/M from the Micro SD card and SIO/2 module
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The square root of 32 is not 4.02
A week ago I noticed that I had a problem with my CBASIC prime number generator running on an RC2040. My first thought was that I’d messed up the algorithm
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How to transfer software to a RC2014 – reliably!
Update: 06/01/2026 Something seems to have changed in the way the Raspberry Pi sets up serial ports by default between the time I wrote this article and later versions of
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Advent of Code 2023: CBASIC Compiler
After my post on Turbo Pascal et al, someone suggested that I try using the Digital Research CBASIC compiler – so I have done! The CBASIC dialect seems like a
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Advent of Code 2023: Pascal, Modula-2 and Aztec C
It’s now the end of January and I’m still obsessed. Not so much with the Advent of Code problems themselves, but seeing what solutions might look like in other languages
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