0xC0DE @0xC0DE6502

Acorn Electron fanboy | 6502 coder 0xc0de6502.github.io Joined September 2019

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0xC0DE @0xC0DE6502

2 weeks ago

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! 😎

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0xC0DE @0xC0DE6502

2 weeks ago

I think I'm going to have some fun with this! Many thanks to @oric_rax

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I now have 3 separate 64bit libretro (RetroArch) core versions of Electroniq, running all at once on Windows 11. Windows core on the left, Linux core (via WSL2) topright, and Android core (via BlueStacks) bottomright. Looking at touchscreen input on Android version now...

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Nyimski @nyimski

4 weeks ago

Acorn Electron fans — I’ve added more ROMs to the collection bringing the total to 590. You can try them out in your browser with Electroniq by @0xC0DE6502 here: nyimski.net/Electron_Roms.… Or, if you’d like to use them on real hardware, grab the full pack here:…

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0xC0DE @0xC0DE6502

4 weeks ago

Getting keyboard and audio working in the amd64 libretro core version of Electroniq went smoother than expected. Here is Flappy Bird in RetroArch with the Mega Bezel Amber shader 😎

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0xC0DE @0xC0DE6502

4 weeks ago

Very first result with compiling Electroniq (Acorn Electron emulator) as a libretro core for e.g. RetroArch. This opens up possibilities such as using many cool shaders, like this CRT effect. Next up: keyboard input and sound output 👾🕹️

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0xC0DE @0xC0DE6502

a month ago

With only about 2 days left, I couldn't help myself but make a pledge to the Spectrum Next kickstarter for an upgrade board 🫣

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0xC0DE @0xC0DE6502

2 months ago

Electroniq update. More reliable 50fps. Improved accuracy. Analogue/digital joysticks support, e.g. DS4Windows + PS4 controller. Load plus1.rom or ap6.rom for analogue joysticks. Added more quickplay ROMs (games) thanks to @nyimski 0xc0de6502.github.io/electroniq/

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0xC0DE @0xC0DE6502

3 months ago

I thought my joystick support code in my Acorn Electron emulator (Electroniq) was not working properly. But I am now convinced, after testing with ancient analogue joysticks on a real Electron with a Plus 1 add-on, that actually joystick support in some games is just broken!?

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0xC0DE @0xC0DE6502

3 months ago

New Acorn Electron demo effect. I am pretty sure this 50fps hardware scroll with *single* scanline precision has never been done on the humble Elk... until today! 💪😎 Remember, the Electron has no CRTC or other dedicated video chips

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0xC0DE @0xC0DE6502

3 months ago

By exploiting CPU/ULA RAM contention it is easy to have a stable raster for any part of the screen. The example in MODE4 also shows that not all emulators are equally accurate. First image is correct (real Electron, Electroniq, Elkulator), 2nd is Clock Signal, 3rd is Electrem

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. I'm a sucker for *detailed* information while debugging my Acorn Electron 6502 asm code. Visual indication of the electron beam? Check. Current PAL field, scanline and exact 2MHz cycle within that scanline? Say no more, I got you covered... and then some! 🤣

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. New feature now online: view RAM as pixels in any selected (or automatic) screen mode. It is a great way to see what is going on 'behind the scenes', in a hidden screen buffer for instance. Try it yourself at 0xc0de6502.github.io/electroniq/

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. New debugger feature coming soon. Jump from breakpoint to breakpoint or singlestep through your 6502 source code, all while drawing over the previous PAL field and showing the exact position of the 'electron beam' in the current PAL field (+ hblank and vblank)

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. New and improved version online. Now handles anything a real Acorn Electron can (famous last words). If you don't get a stable 50fps (looking at you Firefox) please try a different browser (or system 😉). Any issues? Let me know... 0xc0de6502.github.io/electroniq/

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. That's Southern Belle (and Evening Star) fixed (yes, they are slow games)! I tried to clear a tape interrupt using a bitwise-OR! 🤦 These were the last known(!) incompatibility issues I needed to fix in my Acorn Electron emulator. Putting it online soon 😎

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0xC0DE @0xC0DE6502

4 months ago

Electroniq WIP. This was a pig to get 100% right in my emulator. FireTrack for the Acorn Electron is a technical marvel and a great test for emulator writers. I can now throw almost anything at Electroniq and it will just work like a real Electron 😎

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0xC0DE @0xC0DE6502

5 months ago

Electroniq WIP. I can finally run one of my older Acorn Electron demos flawlessly in my emulator. So now a real Electron and Electroniq (next release) are the only 2 machines that can run my demo correctly 😎

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0xC0DE @0xC0DE6502

5 months ago

Thanks @merman1974 for publishing your entire interview with me on your blog! 👍

Andrew Fisher @merman1974

5 months ago

Thanks @merman1974 for publishing your entire interview with me on your blog! 👍

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0xC0DE @0xC0DE6502

5 months ago

I was a bit sidetracked (ok, obsessed) with improving the accuracy of my Acorn Electron emulator. My tests show that the CPU now correctly switches between 0, 1 and 2MHz controlled by the ULA. Including cycle stretches when slowing down from 2MHz to 1MHz