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#c64

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@janbeta@chaos.social · 2d ago
Remember the DolphinDOS x JiffyDOS patch for the #C64? It uses some of the superior disk routines from Dolphin with the Jiffy fastloader so you don’t need a parallel cable (just the Jiffy ROM in the disk drive). I just put it on my #C64Ultimate. Also: rainbow startup screen! https://csdb.dk/release/?id=137270
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Boosted by Charlie Stross @cstross@wandering.shop
@electron_greg@oldbytes.space · Apr 15, 2026
Tested various micros running this FLOATING POINT program. It derives Pi to 20 decimal places. Interesting stats. 1 N=20: L=INT(10*N/3): DIM A(255): Z$="000000":T$="999999" 2 FOR I=1 TO L: A(I)=2: NEXT I: M=0: P=0: FOR J=1 TO N: Q=0: K=2*L+1 3 FOR I=L TO 1 STEP -1: K=K-2: X=10*A(I)+Q*I: Q=INT(X/K): A(I)=X-Q*K: NEXT I 4 Y =INT(Q/10): A(1)=Q-10*Y: Q=Y: IF Q=9 THEN LET M=M+1: GOTO 7 5 IF Q=10 THEN PRINT STR$(P+1);LEFT$(Z$,M);: P=0: M=0: GOTO 7 6 PRINT STR$(P);LEFT$(T$,M);: P=Q: M=0 7 NEXT J:PRINT STR$(P) #RC2014 : 14 (thank you JonV) #BBCMicro : 19 #AmstradCPC : 22 (thank you Devlin) #AcornElectron : 25 #C128 : 27 (fast mode - thank you Jonas H) #VIC20 : 36 #AcornAtom : 37 #CBMPET : 43 #C64 : 43 #Dragon32 : 44 #C16 : 46 #Altair8800 : 52 #MSX : 53 (thank you Pixel Purrito) #C128 : 56 (default "mode") #ZX80 : 57 #ZXSpectrum : 68 (thank you Adam) Edit: now ordered (seconds)
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@markmoxon@universeodon.com · Apr 17, 2026
This is pretty amazing. Draw accurate landscapes from The Sentinel on a pen plotter? And animate them? I'm definitely in! https://newsletter.revdancatt.com/p/085-the-sentinel-adventures-in-animation I do my projects for a lot of reasons, but seeing what people do with them? Yeah, that's a big one. 😀 #bbcmicro #c64 #retrocomputing
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@markmoxon@universeodon.com · Apr 12, 2026

It’s finished! The Sentinel, Geoff Crammond’s epic game, is now fully documented at https://thesentinel.bbcelite.com

  • 41,902 lines of lovingly annotated source code

  • 51 deep dives (116,240 words)

  • Fully buildable code repository

  • 100% handcrafted AI-free content

  • 7 months’ work

If you have enjoyed this project, you might like my other software archaeology projects at https://www.bbcelite.com

  • Elite on the 6502

  • Aviator on the BBC Micro

  • Revs on the BBC Micro

  • Lander on the Acorn Archimedes

Time for a new project now… after a bit of a break. See you soon!

#retrocomputing #C64 #BBCMicro

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@quazarsamcoupe@mastodonapp.uk · Apr 01, 2026

🚨 Use code DONTBEAFOOL to save 15% on the hardware on my Tindie store today! https://www.tindie.com/stores/quazar/

Peripherals for #RC2014 and compatibles…

  • SID Sound Chip Interface
  • SAA1099P Sound Chip Interface
  • Graphic OLED Interface
  • #ZXSpectrum <-> RC Bus Adapter
  • ZX True Tone (ZXTT)
  • 8580 SID Adapter

#hardware #electronics #retrocomputing #soundchip #chiptune #retrogaming #C64

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@markmoxon@universeodon.com · Feb 27, 2026
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 1024 pseudo-random numbers. Next week I'll be releasing a deep dive into exactly how this works. *** A big thanks to Simon Owen, whose excellent repository I forked and enhanced in order to build this visualisation. It's well worth a visit. https://github.com/simonowen/sentland/ #bbcmicro #retrocomputing #retrogaming #c64 #8bit
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@hollowone@mas.erb.pw · Feb 27, 2026
I’m back into retro coding business tonight! i just launched my x16 commander computer (yes I have a real one) and coded a tiled scrolling background layer with some checkerboard and front layer with regular text scroller. Very damn #c64 alike style. Not perfect as font is ugly as shit but works and it’s smooth and I continue having fun with 8-bit assembly. Tommorow if I find time I’ll try to make font nicer, more Amiga style scroller and then I’ll publish it as bbstro maybe, or sth.. Fun… first graphics orientated project since autumn when I parked my retro 3D project somewhere in the middle of completing. I consider tonight as a drill to come back to the latter
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@frontierastro@universeodon.com · Feb 27, 2026
Perhaps the other surprise omission from the FrontierAstro Top 5 Elites was the #ZXSpectrum version. A lot of people loved this back in the day, but to me it looked drab and ran too slowly. Somehow it lacked the magic of #BBCElite and was inferior to the #C64 version too. Sorry!
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@syferdet@toad.social · Feb 27, 2026
My #C64Ultimate arrived at 10pm last night and the first thing I did today was to build my first levels in Wizard in 35+ years. It is actually a passable level. On the fourth try. Level name: "Distract-A-Rat" #C64 #retrocomputing #c64u
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@quazarsamcoupe@mastodonapp.uk · Feb 25, 2026
RE: https://mastodon.social/@samster/116093908713088888 (1/2) Thanks for the mention Samster. My journey with SID and the Z80 started way, way back in 2002, working out how to get it to play happily when connected to a fast Zilog Z80 bus on the SAM Coupe, rather than the MOS6510 it was designed for. 2003 saw the first commercial version of my SID Interface for the SAM Coupe. It's had a few tweaks in the years since and is still available. In 2020 I was asked if the interface would work on the RC2014 (Thanks Shiela!). Replied no, but then a few weeks later, yes!, having redesigned the interface in a version specifically for the RC2014 bus and integrating an interrupt controller for 50/60/100Hz - ideal for use with other soundchips too! This version has also had a few tweaks over the last six years since release, currently on v1.3. Can't add photos due to the 'quote' so will add a reply to this post with photos... (Nice to see this now implemented in Mastodon!) #samcoupe #commodore #c64 #soundchip #chiptune #demoscene #rc2014 #zxspectrum
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@markmoxon@universeodon.com · Feb 25, 2026
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. https://thesentinel.bbcelite.com/deep_dives Batch #3 (landscape) coming soon. Enjoy! #retrocomputing #retrogaming #c64 #8bit
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@commodoremania__dup_39311@mastodon.world · Feb 23, 2026
Commodore 64 -=Curse of the Pharaoh=- https://youtu.be/xLnU0I7cKR4 #c64
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@FREEZE64__dup_32723@mastodon.world · Feb 23, 2026
FREEZE64 issue 81: we chat with the great David Broadhurst about the development of his #Commodore64 games: C5 Clive, Mr Frosty & the Killer Penguins, and our cover feature game, Metranaut. Read the full interview and MORE in: https://freeze64.com/freeze64-issue-81/ #Commodore64Ultimate #C64
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@chainq@mastodon.social · Feb 21, 2026
The BCC#20 beam/stream setup was a difficult one to pull off, largely for self-inflicted reasons... But we're almost there. #c64 #demoscene #party
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@markmoxon@universeodon.com · Feb 19, 2026
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: https://thesentinel.bbcelite.com/deep_dives Batch #2 (maths, lots of!) coming soon. Enjoy! #retrocomputing #retrogaming #c64 #8bit
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@FREEZE64__dup_32723@mastodon.world · Feb 02, 2026
# Tell me why… # #Commodore64 #C64 #Commodore64Ultimate
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@root42@chaos.social · Jan 31, 2026
Summer Presto by Hokuto Force #commodore #c64 #demoscene
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@markmoxon@universeodon.com · Jan 31, 2026
I've started writing a series of deep dives into Geoff Crammond's epic #BBCMicro game The Sentinel. Here's the to-do list. I will post a link here whenever I add a new one to https://thesentinel.bbcelite.com/ It's going to take a while! But it should be worth it... #retrocomputing #retrogaming #c64 #8bit
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@FREEZE64__dup_32723@mastodon.world · Jan 28, 2026
BIG 😊🙏 & ❤️ to all our lovely Subscribers who are starting to share their love for the new issue of FREEZE64. On general sale soon at: freeze64.com/freeze64-issue-81 #Commodore64 #C64
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@vingtroiseize@mastodon.world · Jan 28, 2026
[1984] Commodore Computing International - Vol 02 No 09 - Nick Hampshire Publications #Commodore #C64 #retrocomputer #retrogaming #videogames #8bit #80s #90s #Geek #Casio #CasioTone #Colleen #CasioToneMT11 #Music #Compo
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