@kieranhj
Software developer & Engineering Manager. Formerly Rare, Xbox, HoloLens. Now helping invent the future of AI at Google DeepMind by day. Developing retro games & demos by night for BBC Micro & Acorn computers as kieran^Bitshifters. #demoscene
Just to clear things up. This cover artwork was definitely not created by AI, but by the incredibly talented Pete Hentze, a long time Rare artist, and one of the concept artists on Conker: Live and Reloaded! 🙂
We are looking for shader coders for our shader showdown!
For more info and to register check out the Livecoding page on our website:
2026.revision-party.net/events/livec...
See also this 7 channel (!) conversion by the mighty Sarah Walker: stardot.org.uk/forums/viewt...
Shoutouts for another #BandcampFriday!
Support your favorite musician on bandcamp!
If that happens to be me, I'm at inversephase.bandcamp.com
#indiemusic #indie #music #bandcamp #chiptune #8bit #retrogaming #retrocomputing #VGM #nintendo #gamemusic #OST
A slight twist on the normal stream antics tonight as we try and run @amiga.vision on a real A1200. See you from 8PM GMT (UK) on twitch.tv/djh0ffman
At our next meeting on Monday 16th March come chat with @matt.godbolt.org in the pub (or on Zoom if you must) about JSbeeb, Compiler Explorer, and more! Free entry, but you have to buy your own drinks 😛
rougol.jellybaby.net/meetings/ind...
Come to @revision-party.bsky.social and help us save the world from Evilbot!
www.youtube.com/watch?v=dYpy...
At our beloved E-Werk, will *you* be able to feel the power within?
The invitation for Revision 2026 is out now!
www.youtube.com/watch?v=dYpy...
This is pretty cool.
It's a visualisation of the internals of The Sentinel on the #BBCMicro.
This is it generating the game landscape for the first level from 256 pseudo-random numbers.
Next week I'll be releasing a deep dive into exactly how this works.
#retrocomputing #retrogaming #c64 #8bit
I'm (slowly!) releasing 50+ deep dives into The Sentinel, Geoff Crammond's epic #BBCMicro game
Batch #2 is now ready: 7 new articles about maths, geometry, trigonometry… and Revs
thesentinel.bbcelite.com/deep_dives
Batch #3 (landscape) coming soon
Enjoy!
#retrocomputing #retrogaming #c64 #8bit
TICKETS AND HOTEL INFO - REVISION. Title text over a computer graphic of a rocky terrain.
Can you hear the E-Werk calling you? Revision tickets are now available, get the details here: 2026.revision-party.net/blog/03-tick... Like last year you can book a campervan spot, the airport bus, and supporter tickets. Hotel info too: 2026.revision-party.net/blog/04-hote... #RevisionParty
Field-FX 2026: 16th - 19th July 2026, United Kingdom 🇬🇧 @field-fx.party
A trio of floppy disks: a big 8" disk, a fairly ordinary 5.25" disk for PCs, and an Apple FileWare (aka Twiggy) disk.
Do you have 5.25" and 8" floppy disks that are spare, low-quality, degrading, or just generally in bad shape?
I'd like to take my floppy disk data recovery game to the next level. I have equipment, but there's no substitute for experience.
I might be able to rustle some up. I'll have a rummage and get back to you!
I'm releasing over 50 deep dives into The Sentinel, Geoff Crammond's epic #BBCMicro game.
Batch #1 is now ready: 6 new articles about memory maps, program flow and interrupts, all at thesentinel.bbcelite.com/deep_dives
Batch #2 (maths!) coming soon.
Enjoy!
#retrocomputing #retrogaming #c64 #8bit
Nice to see modern engines for retro consoles, complete with tooling: "Pyrite 64 : N64 Game-Engine and Editor". It appears like the N64 is graphically quite more capable than what I expected: www.youtube.com/watch?v=4BCm...
This weeks #throwbackthursday has to be the Acorn BBC Master 128 as it celebrates 40 years!
In February 1986, Acorn Computers released the BBC Master 128 microcomputer, the successor to the hugely popular BBC Micro.
Swipe to end for BBC AIV!
#bbcmaster #acorncomputer #computinghistory
I'll be speaking at the next @rougol.bsky.social (RISC OS User Group of London) meeting at the Duke of Sussex pub next Monday 16th February! Details available here: rougol.jellybaby.net/meetings/ind...
Event: www.retrocollective.co.uk/view-event.p...
Table Top Sale and a day at the museum.
We've been sorting through duplicates and surplus inventory and will be holding a sale. Also joining us with sale tables are Museum of Computing and Retro Sect so there will be plenty to choose from
book now!
I'm fairly convinced at this point that the secret to longevity is a nice hot shower. In 2024, I went to @revision-party.bsky.social for one and wrote a song about it...
inversephase.bandcamp.com/track/hubsch...
Inspired by leinad, it's also a @bloopmuseum.bsky.social shill.
#demoscene
Bloop is just shy of $100 from $300K all time donations!
Be the one to push us past that mark:
givebutter.com/bloopholiday
#museum #museums #PGH #pittsburgh #tech #technology #retrocomputing #retrogaming
Call for #teletext art entries! Valentine's Day on Yle Teletext. I'd *love* for you to submit something.🌹
Info: teletextart.co.uk/call-for-ent...
#pixelart #ceefax #callforentries #artistsontwitter #1bit #videotext #textmode
Sign-up and first information are now live!
Save the date and start working on your productions!
2026.revision-party.net
Revision 2026 - "The Power Within": 3rd - 6th April 2026, E Werk, Saarbrücken, Germany 🇩🇪 @revision-party.bsky.social
If you have a Master then you're better off buying a Gotek rather than an SD card solution. The SD cards use hacked filing system ROMs and can interfere with PAGE (available RAM). Gotek is 100% equivalent to using a floppy drive, which the Master is already configured for, unlike Model B.
Speaker submissions are now open until Wednesday 11 February! Find out more and submit here: www.developconference.com/get-involved... #developconf
The first level in The Sentinel
The first level in The Sentinel showing grid points for panning and the first screen in red
Have you ever wondered how big the full landscape is in The Sentinel?
It's 1856 pixels high and 2048 pixels wide.
Here's the first level. The initial 192x160 screen is in red. Panning jumps the view to different grid points.
It's a big old world!
#retrocomputing #retrogaming #bbcmicro #c64 #8bit
Sounds amazing already! Great work. 👏
Very much a work in progress, but quite a while ago @h0ffman.bsky.social shared his .1tm file for 1-Bit High and Rising. The intention was to port the Z80 Squeeker Plus engine to the 6502, but it proved to be difficult... until now.
Pitch is wrong.... but it's finally playing . More work to do! 😊
Save the date! Develop:Brighton will be returning this year from 14-16 July 2026 at the DoubleTree by Hilton Brighton Metropole.
This year also marks the 20th anniversary of Develop:Brighton, so keep an eye out for exciting news and announcements! #DevelopConf
