0xC0DE
@0xc0de.bsky.social
Acorn Electron fanboy | 6502 coder
https://0xc0de6502.github.io
https://0xc0de6502.github.io
Infinite amount of sand? Sure, let's go! #acornelectron
December 7, 2025 at 10:15 PM
Infinite amount of sand? Sure, let's go! #acornelectron
More sand, infinite stream, can't stop playing with this 😎
December 7, 2025 at 2:45 PM
More sand, infinite stream, can't stop playing with this 😎
That is exactly what I have added to the version below! I took the lazy route and have bit0 of the 'sand grain index' decide the direction for now. Alternatively, these could be piles of corn that need a certain Harry or some geese to collect :)
December 7, 2025 at 12:11 PM
That is exactly what I have added to the version below! I took the lazy route and have bit0 of the 'sand grain index' decide the direction for now. Alternatively, these could be piles of corn that need a certain Harry or some geese to collect :)
On to the next experiment with physics simulation on my Acorn Electron, creatively named Sand!
December 6, 2025 at 10:19 PM
On to the next experiment with physics simulation on my Acorn Electron, creatively named Sand!
Couldn't help myself... my name fits exactly in those 36 bouncing balls 😎
December 6, 2025 at 12:05 PM
Couldn't help myself... my name fits exactly in those 36 bouncing balls 😎
Pushed my Acorn Electron a little further from 27 to 36 bouncing balls (9x9 pixels each, 50fps flicker-free, MODE4) 🤓
December 5, 2025 at 4:22 PM
Pushed my Acorn Electron a little further from 27 to 36 bouncing balls (9x9 pixels each, 50fps flicker-free, MODE4) 🤓
This must look familiar then: (I am spotting an opportunity for exploiting an undocumented instruction btw!)
December 4, 2025 at 11:41 PM
This must look familiar then: (I am spotting an opportunity for exploiting an undocumented instruction btw!)
Excellent question! Here's a snippet:
December 4, 2025 at 8:07 PM
Excellent question! Here's a snippet:
I can push this to 25 flicker-free bouncing balls (9x9 pixels each) at 50fps in MODE4 on an unexpanded Acorn Electron 😎 Can you do better? Might be fun to do much smaller balls/particles next... 🧐
December 2, 2025 at 6:29 PM
I can push this to 25 flicker-free bouncing balls (9x9 pixels each) at 50fps in MODE4 on an unexpanded Acorn Electron 😎 Can you do better? Might be fun to do much smaller balls/particles next... 🧐
Double the fun with double screen buffers, flicker-free 50fps #acornelectron
December 1, 2025 at 10:08 PM
Double the fun with double screen buffers, flicker-free 50fps #acornelectron
Always enjoy a little physics simulation, especially having stuff bounce around randomly, very mesmerising 😎 #acornelectron
November 30, 2025 at 9:40 PM
Always enjoy a little physics simulation, especially having stuff bounce around randomly, very mesmerising 😎 #acornelectron
Disassembly (+ comments) of tape protection of Repton (Acorn Electron). Interesting protection measures. Hidden data in tape block headers is my favourite trick github.com/0xC0DE6502/t...
November 2, 2025 at 4:36 PM
Disassembly (+ comments) of tape protection of Repton (Acorn Electron). Interesting protection measures. Hidden data in tape block headers is my favourite trick github.com/0xC0DE6502/t...
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 😎
October 26, 2025 at 2:15 PM
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 😎
Hidden sectors. The encrypted bootstrap code is in !BOOT and is laced with the usual stuff: overwriting the vector table, *FX200,3, kicking out all ROMs, etc.
October 25, 2025 at 3:36 PM
Hidden sectors. The encrypted bootstrap code is in !BOOT and is laced with the usual stuff: overwriting the vector table, *FX200,3, kicking out all ROMs, etc.
I was curious how game devs made custom tape loaders back in the day. Here is my disassembly (+comments) of the tape loader of Way of the Exploding Fist (Acorn Electron). It loads "encrypted" continuous streams, which are still made up of blocks so you can rewind & retry github.com/0xC0DE6502/c...
October 19, 2025 at 5:31 PM
I was curious how game devs made custom tape loaders back in the day. Here is my disassembly (+comments) of the tape loader of Way of the Exploding Fist (Acorn Electron). It loads "encrypted" continuous streams, which are still made up of blocks so you can rewind & retry github.com/0xC0DE6502/c...
And here's a Speccy-inspired custom tape loader for the Acorn Electron (MODE 1, one continuous data stream)
October 15, 2025 at 10:32 PM
And here's a Speccy-inspired custom tape loader for the Acorn Electron (MODE 1, one continuous data stream)
I got sidetracked by custom tape loaders on the Acorn Electron and decided to try creating a few of my own. Here's one that loads a continuous data stream to the screen (MODE 0), scanline by scanline. Beware, this is the perfect world of emulators and must really be tested on actual hardware!
October 15, 2025 at 3:22 PM
I got sidetracked by custom tape loaders on the Acorn Electron and decided to try creating a few of my own. Here's one that loads a continuous data stream to the screen (MODE 0), scanline by scanline. Beware, this is the perfect world of emulators and must really be tested on actual hardware!
Electroniq now supports importing text files (e.g. BBC BASIC programs) via "turbo pasting". It also supports exporting BBC BASIC programs to text files, for easy editing in your favourite editor.
Try it at 0xc0de6502.github.io/electroniq/
Try it at 0xc0de6502.github.io/electroniq/
October 9, 2025 at 9:11 PM
Electroniq now supports importing text files (e.g. BBC BASIC programs) via "turbo pasting". It also supports exporting BBC BASIC programs to text files, for easy editing in your favourite editor.
Try it at 0xc0de6502.github.io/electroniq/
Try it at 0xc0de6502.github.io/electroniq/
Is this screenshot going to work? There is not much else to show at the moment
October 1, 2025 at 9:00 PM
Is this screenshot going to work? There is not much else to show at the moment
I want my Acorn Electron emulator Electroniq to be able to import/export BBC BASIC programs in regular text format. However, tokenising BBC BASIC is not exactly a trivial task. So I am experimenting with this alternative method: turbo paste! This is working remarkably well, even for large programs 😎
September 30, 2025 at 10:56 PM
I want my Acorn Electron emulator Electroniq to be able to import/export BBC BASIC programs in regular text format. However, tokenising BBC BASIC is not exactly a trivial task. So I am experimenting with this alternative method: turbo paste! This is working remarkably well, even for large programs 😎
Pong Wars simulation for Acorn Electron and BBC Micro/Master. This fun little project was inspired by pong-wars.koenvangilst.nl. After coding a prototype in BBC BASIC, I created this 6502 asm version. I hope you enjoy! github.com/0xC0DE6502/p...
September 28, 2025 at 6:44 PM
Pong Wars simulation for Acorn Electron and BBC Micro/Master. This fun little project was inspired by pong-wars.koenvangilst.nl. After coding a prototype in BBC BASIC, I created this 6502 asm version. I hope you enjoy! github.com/0xC0DE6502/p...
With the libretro core version of Electroniq, I can finally easily load and play Acorn Electron games on my Android device (via RetroArch) using the touchscreen! 😎
September 17, 2025 at 11:03 AM
With the libretro core version of Electroniq, I can finally easily load and play Acorn Electron games on my Android device (via RetroArch) using the touchscreen! 😎
I think I'm going to have some fun with this! Many thanks to rax (x.com/oric_rax)
September 15, 2025 at 9:03 PM
I think I'm going to have some fun with this! Many thanks to rax (x.com/oric_rax)
So now I have 3 separate 64bit libretro (RetroArch) core versions of Electroniq, running all at once on Windows 11 in this video. Windows core on the left, Linux core (via WSL2) topright, and Android core (via BlueStacks) bottomright. Investigating touchscreen input on Android version now...
September 6, 2025 at 3:25 PM
So now I have 3 separate 64bit libretro (RetroArch) core versions of Electroniq, running all at once on Windows 11 in this video. Windows core on the left, Linux core (via WSL2) topright, and Android core (via BlueStacks) bottomright. Investigating touchscreen input on Android version now...
It is for that reason that I prefer my (tweaked) high contrast theme in VSCode: I actually want to read my own comments from time to time!
September 2, 2025 at 7:23 PM
It is for that reason that I prefer my (tweaked) high contrast theme in VSCode: I actually want to read my own comments from time to time!