Tag: Z80

Building a Pico RomWBW

Posted on 7 January 2026 by Tim

At the end of September I attended the first RC2014 assembly at The National Museum of Computing. I’d gone with strict instructions not to buy any more computers, but I

Benchmarking the Pico MZ-700 vs the real hardware.

Pico MZ-700 – First release

Posted on 30 November 202530 November 2025 by Tim

When I first started thinking about writing an emulator for the Sharp MZ-80K in September 2024, I decided that I was only going to attempt that model and no more.

A Pico MZ-80K using the RC2014 RP2040 VGA terminal card to run the Sharp version of Space Invaders

Pico MZ-80K and the RC2014 RP2040 VGA terminal card

Posted on 8 January 202516 January 2025 by Tim

A new year and I’m back to tinkering with the Pico MZ-80K emulator. I’ve started work on support for the RC2014’s RP2040 VGA terminal card. I’d not had very much

Pico MZ-80K floppy disks (2)

Posted on 16 November 202412 June 2026 by Tim

The quest continues! The disk images I found a couple of days ago turned out not to be MZ-80K compatible ones (at least, not with the original drives and SP-6015

Pico MZ-80K floppy disks (1)

Posted on 11 November 202412 November 2024 by Tim

Now that I have a release 1 of the Pico MZ-80K, I’m starting to work my way through a number of enhancements that have sprung to mind as I’ve tested

A 10MHz Z80 CPU, date code week 18, 2024.

The long goodbye

Posted on 10 August 2024 by Tim

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

The square root of 32 is not 4.02

Posted on 11 February 202425 February 2024 by Tim

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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