Wait a minute - Jean-Michel Jarre used a KIM-1 on Equinoxe? C’est fantastique! www.ina.fr/ina-eclaire-...

Ben Eater hooks a 6581 SID up to his 6502 computer and plays Rob Hubbard's "Monty On The Run" (at 60Hz for those US folk). www.youtube.com/watch?v=LSMQ...

Ok, obviously I'm a little slow but I just bought the August issue of Compute!'s Gazette. The return of an old rag from way back then. Not just for the Commodore, there are articles on Tandy and Atari along with old rag style articles and examples in BASIC and 6502 Assembly I'm impressed!

Taking my first steps using 6502 Assembly w/ bAtari BASIC. #GameDev update on my #Atari2600 #Homebrew MUTATIS. youtu.be/0BJplaXuicQ?...

Tremendîsimo video explicando paso a paso como emular una cpu 6502 en C++.

New blog post - a simple LED tester for PET, VIC20 and C64 Userports. blog.tynemouthsoftware.co.uk/2025/11/user... #blinkenlights www.tindie.com/products/tyn...

KIM-1 experiments with the IEC bus. youtu.be/cK7mzGhBfHs

I really don't push it enough but if you want to avoid YouTube and/or adverts then my videos are available on MakerTube the same day as I release on YouTube makertube.net/c/reenthused...

Self-modifying code: sound engineering practice or road to madness?

The most popular piece of hardware for the Apple II was made by Microsoft. And it was a Z80. devblogs.microsoft.com/oldnewthing/...

Like #RetroComputing / #RetroGaming? Want to play on old stuff and talk to crusty old people who spend their valuable time making games for machines that barely anyone still uses? Come and join us on the 15th/16th of this month www.computinghistory.org.uk/det/74558/Re...

And you can meet us both at The Centre for Computing History in Cambridge on the 15/16th November, where we'll be waxing lyrical about games development in the '80s, me on Z80, Kevin on 6502. This is a ticketed event, so check for availability and buy before the day.

In Blake 7, the flight computer of the Scorpio was in fact powered by an Acorn System 1. 6502 rules the universe!

Have you seen the newly redesigned website for @bluescsi.com? It's very nice. www.bluescsi.com

What better way to spend Halloween than playing 3D Monster Maze on the green screen CRT of a PET in the dark. I fixed this one last week, it was quite a horror show when it arrived. blog.tynemouthsoftware.co.uk/2025/10/cbm-... Get my PET 3DMM remake from itch.io tynemouth.itch.io/pet-3d-monst...

Bit by bit www.youtube.com/@decuser

Beautiful, concise explanation of why a cycle-accurate 6502 emulator is easier than not https://lobste.rs/s/hr2ojn ##assembly ##programming ##retrocomputing

But I also have ZX80 and Jupiter Ace.......oh, I see what you mean. That's who I am, that's what I do. Can't easily change that.

New blog post - the second part of the 4016 repair. blog.tynemouthsoftware.co.uk/2025/11/cbm-... The board is working with a PET ROM/RAM and video RAM replacement, let's get back to as many original chips as possible. After all, they can't all be bad, can they......

Yes, I have made some use of tts. Long ago we had Linux systems that booted with a dectalk serial box and was usable by a fully sightless person at the AFB, but they abandoned that and other work under pressure from a donor. My first computer was a Kim-1.

What’s your computer horror story? Once, when repairing an external PSU for an 8-bit computer, I had it completely disassembled and was about to probe the bare transformer outputs when I realised it felt warm in my hands. And it was still plugged in and powered on.

Mostek 'Z80' and Rockwell '6502' #Hardware #CPU #8Bit

Wee bit more reliable than the KIM-1 I have.

The C64 Mini “after dark” edition. a.co/d/eeXdG03

This video shows the bitmap RGB 565 layer working with the #Commodore64 and additional hardware. I'm working on finalising the manufacturing design for the remaining boards. Thank you @pcbwayofficial.bsky.social @queenelaine.bsky.social for working boards. youtu.be/JYrwhIhjeHQ

Prog8 Number Guessing Tutorial #Prog8 #Commodore64 #RetroCoding #BASICProgramming #C64 theoasisbbs.com/prog8-number...

Programming 8 bit games in C targeting the Oric 6502 based micro. Here's one example converted from dflat a BASIC like language I developed for my homebrew computer 🤓 youtu.be/wLsLQ_LsYGU

KIM-1

KIM-1

Revisiting one of my older demos for the Acorn Electron. Creatively called "MODE2 Demo". Fixed an issue that made it glitch every so often. Runs flawlessly in Electroniq (and on a real Electron of course). If someone says the Elk is slow and lacking colours, show them this 😎

New blog post - CBM 4016 Repair - blog.tynemouthsoftware.co.uk/2025/10/cbm-... Since Halloween is approaching, this is a bit of a horror show special. Those of a nervous dispositions should look away now.

The new C64 mini Black Edition: A celebration of homebrew or a quick cash-in? I've got the original C64 mini, and frankly, it's a brilliant little piece of kit. It’s exactly the right size for a bit of nostalgia and the included joystick—while perhaps not perfect—does the job. So, when news landed…

If you love Assembly, I am sure you'll love my UltimASM DSL, it allows you to design the Assembly of your dreams or to code in 6502, 6809, 68000 and even VAX ASM on #RISC_OS (and all other supported platform by my #UltimaVM). Want to know more? Come at the RISC OS London Show Saturday 25th October!

I don't like being called a hypocrite, so if I'm going to create a site to talk about the 6502, the site better sure also be running on at least a virtual 6502. Say Hello to Web6502! A web framework for the secret 6502 fan in all of us. web6502.puter.site

Wonder if they had just used several thousand 6502s..

Anyone know of fast Modulo algorithms optimised for 6502 CPUs, by any chance? I just got a sick idea, but I need to calculate them as fast as possible, in order to even try anything. Ideally, I would need to keep the CPU cycles usage as low as humanly possible, since this has to be done in VBlank.

Yes.

🇮🇹 Vintage computer Kim Uno. 🇫🇷 Ordinateur vintage Kim uno. dicoit.fr/magli/testiA... #kim #arduino #computer #ordinateur #clone #programme #programma #hexadecimal #esadecimale #assembleur #assembly #motorola #chronometre #cronometro #horloge #orologio #carte #scheda #vintage #sasfepu #ordinosaure

I'm excited about my reading material this morning. I discovered the Retro Game Zine while talking with the publisher, Darren, at their booth at PRGE this weekend! If you like retro games and like small publications, check them out! @pixelsandpolygons.net pixelsandpolygons.net #retrogames #zine

6502: Assembly Language for Human Beings

May I present a website which runs a virtual 6502 emulator to display the page, and uses the 6502 interrupt vector to handle internal page links, and can be extended further. Now you can program the web in 6502 using Web6502. web6502.puter.site

BlueSky hive mind. Can anyone confirm the position of these jumpers on the BBC Master motherboard so the machine is factory standard. Is this right? Cc @hrh-6502.bsky.social and @markmoxon.bsky.social ? Thanks in advance. 😎 #bbcmaster #retrocomputing

The 2K Symbolic Assembler, by Robert Denison, assembler and editor in 2K! This small program allows to assemble a program up to 1K From Jeff Tranter available source and binary format KIM-1, SYM-1 ,Apple 1. I made a higher quality scan of the book retro.hansotten.nl/6502-sbc/kim...

"Astoraid" but not running on an emulator/real hardware. I've created a mini dev environment using JavaScript + an HTML Canvas that lets me try things out much more quickly than writing lots of 6502. I have a library of routines that mimic the real hardware so the code is close to what it will be...

The vertical blank is where the good stuff is!

New blog post - The Minstrel ROM Cart for the Minstrel Expansion Bus. blog.tynemouthsoftware.co.uk/2025/10/mins... Replace the ROM on a Minstrel 2, 3, ZX81 or TS1000 with an 8K or 16K ROM image.

More 6502-based goodies at PRGE today.

Spotted at PRGE.

Come visit our booth in Hall E at the Oregon state convention center this weekend for the Portland Retro gaming Expo #prge #retrocomputing #vintagecomputing #retrogaming #gaming #portland #pnw