KIM-1
@kim-6502.bsky.social
The KIM-1 and classic 6502 related topics. Zero page FTW!
Reposted by KIM-1
New blog post - I have designed a new serial card for the Minstrel 4th and RC2014 bus. More on that next week, but first a look back at some of the things I tried before settling on this design.
blog.tynemouthsoftware.co.uk/2025/11/a-ne...
blog.tynemouthsoftware.co.uk/2025/11/a-ne...
November 16, 2025 at 11:49 AM
New blog post - I have designed a new serial card for the Minstrel 4th and RC2014 bus. More on that next week, but first a look back at some of the things I tried before settling on this design.
blog.tynemouthsoftware.co.uk/2025/11/a-ne...
blog.tynemouthsoftware.co.uk/2025/11/a-ne...
Reposted by KIM-1
Spread the word: November 25 is #ChuckPeddleDay — celebrating the engineer behind the legendary MOS 6502 processor, the heart of so many home computers and game consoles of the 80s. 💾🕹️
If you own a machine powered by a 6502, fire it up on that day and share a photo with the hashtag #ChuckPeddleDay
If you own a machine powered by a 6502, fire it up on that day and share a photo with the hashtag #ChuckPeddleDay
November 11, 2025 at 7:42 PM
Spread the word: November 25 is #ChuckPeddleDay — celebrating the engineer behind the legendary MOS 6502 processor, the heart of so many home computers and game consoles of the 80s. 💾🕹️
If you own a machine powered by a 6502, fire it up on that day and share a photo with the hashtag #ChuckPeddleDay
If you own a machine powered by a 6502, fire it up on that day and share a photo with the hashtag #ChuckPeddleDay
It’s Chuck Peddle’s birthday on November 25th, so get your KIM-1 or other #6502 system ready for a big Show and Tell in his honour.
November 11, 2025 at 5:13 PM
It’s Chuck Peddle’s birthday on November 25th, so get your KIM-1 or other #6502 system ready for a big Show and Tell in his honour.
Wait a minute - Jean-Michel Jarre used a KIM-1 on Equinoxe? C’est fantastique!
www.ina.fr/ina-eclaire-...
www.ina.fr/ina-eclaire-...
November 10, 2025 at 12:40 AM
Wait a minute - Jean-Michel Jarre used a KIM-1 on Equinoxe? C’est fantastique!
www.ina.fr/ina-eclaire-...
www.ina.fr/ina-eclaire-...
Reposted by KIM-1
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...
www.youtube.com/watch?v=LSMQ...
The SID: Classic 8-bit sound
YouTube video by Ben Eater
www.youtube.com
November 9, 2025 at 5:25 AM
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...
www.youtube.com/watch?v=LSMQ...
Reposted by KIM-1
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!
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!
November 9, 2025 at 6:30 PM
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!
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!
Reposted by KIM-1
Taking my first steps using 6502 Assembly w/ bAtari BASIC. #GameDev update on my #Atari2600 #Homebrew MUTATIS.
youtu.be/0BJplaXuicQ?...
youtu.be/0BJplaXuicQ?...
Making Mutatis | My First Minikernel! | Using Assembly with bAtari BASIC
YouTube video by William J. Meyer
youtu.be
November 9, 2025 at 7:10 PM
Taking my first steps using 6502 Assembly w/ bAtari BASIC. #GameDev update on my #Atari2600 #Homebrew MUTATIS.
youtu.be/0BJplaXuicQ?...
youtu.be/0BJplaXuicQ?...
Reposted by KIM-1
Tremendîsimo video explicando paso a paso como emular una cpu 6502 en C++.
Emulating a CPU in C++ (6502)
YouTube video by Dave Poo
youtu.be
November 9, 2025 at 8:33 PM
Tremendîsimo video explicando paso a paso como emular una cpu 6502 en C++.
Reposted by KIM-1
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...
blog.tynemouthsoftware.co.uk/2025/11/user...
#blinkenlights
www.tindie.com/products/tyn...
November 9, 2025 at 12:54 PM
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...
blog.tynemouthsoftware.co.uk/2025/11/user...
#blinkenlights
www.tindie.com/products/tyn...
Reposted by KIM-1
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...
re:enthused
Videos about RetroGaming and RetroComputing. Covering rare and obscure machines. We also create open-source/hardware solutions to keep machines running as part of our #keepITalive initiative.
makertube.net
November 8, 2025 at 1:50 PM
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?
Self modifying code is the bread and butter for 6502 based computers such as the Commodore 64 and Atari 8-bit.
If it could be done and be used for a practical purpose, it's well worth making use of it!
If it could be done and be used for a practical purpose, it's well worth making use of it!
November 6, 2025 at 7:30 PM
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/...
devblogs.microsoft.com/oldnewthing/...
The Microsoft SoftCard for the Apple II: Getting two processors to share the same memory - The Old New Thing
Reportedly Microsoft's first hardware product.
devblogs.microsoft.com
November 5, 2025 at 6:44 PM
The most popular piece of hardware for the Apple II was made by Microsoft. And it was a Z80.
devblogs.microsoft.com/oldnewthing/...
devblogs.microsoft.com/oldnewthing/...
Reposted by KIM-1
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...
Retro Computer Festival 2025 (Gaming Edition) - Saturday 15th November - Event Ticket - Computing History
Click here for information on Sunday Were very happy to announce our 2025 Retro Computer Festival and this time with a twist.Click here for information on Sunday We're very happy to announce our 20...
www.computinghistory.org.uk
November 4, 2025 at 9:49 PM
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...
Reposted by KIM-1
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.
It's just two weeks to go! Come meet the developers - meet the people who coded for all our favourite systems back in the day, and many who still do - and can teach us all a trick or two! Let's look at all the platforms ...
November 3, 2025 at 1:42 PM
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.
Reposted by KIM-1
In Blake 7, the flight computer of the Scorpio was in fact powered by an Acorn System 1. 6502 rules the universe!
Have you ever wondered what the flight computer of the Scorpio was in #Blake7?
Professor Steve Furber lets us in on a little secret.
Full talk coming soon to youtube.com/@theretrocollective
Professor Steve Furber lets us in on a little secret.
Full talk coming soon to youtube.com/@theretrocollective
November 3, 2025 at 4:29 PM
In Blake 7, the flight computer of the Scorpio was in fact powered by an Acorn System 1. 6502 rules the universe!
Reposted by KIM-1
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...
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...
October 31, 2025 at 2:48 PM
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...
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
www.youtube.com/@decuser
bit by bit
Exploring retro and classic systems, hither and yon.
www.youtube.com
November 2, 2025 at 11:35 PM
Bit by bit
www.youtube.com/@decuser
www.youtube.com/@decuser
Reposted by KIM-1
Beautiful, concise explanation of why a cycle-accurate 6502 emulator is easier than not https://lobste.rs/s/hr2ojn ##assembly ##programming ##retrocomputing
GitHub - bagnalla/6502: Cycle-accurate 6502 emulator as coroutine in Rust
Cycle-accurate 6502 emulator as coroutine in Rust. Contribute to bagnalla/6502 development by creating an account on GitHub.
github.com
November 2, 2025 at 3:10 PM
Beautiful, concise explanation of why a cycle-accurate 6502 emulator is easier than not https://lobste.rs/s/hr2ojn ##assembly ##programming ##retrocomputing
Reposted by KIM-1
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.
That's who I am, that's what I do. Can't easily change that.
November 2, 2025 at 12:43 PM
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.
That's who I am, that's what I do. Can't easily change that.
Reposted by KIM-1
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......
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......
November 2, 2025 at 11:51 AM
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......
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......
Reposted by KIM-1
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.
November 1, 2025 at 10:22 AM
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.
