iiinova — where your digital self keeps evolving

RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 11h

Small intervention: it wasn't too smart to directly make an OS for what i can only describe a crime against ISA design rules. I will try first to do some burner OS for my larger less funky 16-bit ISA before going back to Picomage

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Reposted by RascalFoxfire aka. the funky CPU fox

Soatok, the Furbidden One @soatok.bsky.social · 29/09/2026

It's still funny that this is a real screenshot of @lastweektonight.com

John Oliver from Last Week Tonight with a tweet I wrote in 2022 at Kandiss Taylor that simply reads "L + ratio + furry butt emote". Below is my Twitch emote, soatokButt. Which features a blue anthro dhole's butt and a smirk looking back over the left butt cheek.

The original tweet depicted in the previous screenshot.

Kandiss Taylor: "The furry days are over when I’m governor. Public school is for academics not fairy tales."

Me: "L + ratio + furry butt emote"

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Reposted by RascalFoxfire aka. the funky CPU fox

Bolt thunder @boltthunder.bsky.social · 14/09/2026

Y'all in nyc please be careful. Fishtank is trying to bait y'all.

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 16/09/2026

Finally some good news: Picomage (here in variant 1.3) works! It still assumes perfectly fast memory but it holds as a golden model to test software. I additionally fixed my toolchain so i can try to finally get my OS running on it.

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 02/09/2026

All chill here, have to fix my toolchain since version control doesn't exist in my software world

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 15/08/2026

Aight, back on the logisim Picomage implementation. Got the first some instructions running but its timing is funky. Should be able to finish it this week and call it the golden model for Picomage 1.2/1.3

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 15/07/2026

Had to sidetrack a lil since i was encouraged by a guy to look a bit into CDC 6600. This is the WIP front end of the new SuperSatellit CPU. Another attempt at super scalarity but this time less magic and smaller steps. 2 front end pipelines so i should end up with round about an IPC of 1.3

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 06/07/2026

Okay, finally back with some fresh ideas and motivation! Time to get back at the logisim Picomage

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 03/07/2026

Okay, my brain is overloaded. Time for a short vacation. Cya all in 3 days!

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 16/06/2026

Debugging and simulating is just killing me rn... progress is basically zero. Gonna think on how to proceed

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Reposted by RascalFoxfire aka. the funky CPU fox

Dana Fried @leftoblique.bsky.social · 03/02/2026

Saw this on Mastodon, never don't repost.

A four panel cartoon of a small bird on a branch; the original images are from falseknees.com

Panel 1: "mov rax, rbx"

Panel 2: "add rax, rcx"
Another speech bubble appears, covering that one that says: "HELLO IT'S ME THE KEYBOARD"

Panel 3: A corvid appears next to the small bird; the new speech bubbles belong to it. It says "I HAVE AN IMPORTANT MESSAGE"

Panel 4: A closeup of the small bird with a frustrated look on its face. The corvid's speech bubble behind it reads, simply, "E".

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 31/05/2026

Time for some next level software debugging: rebuilding Picomage in Logisim Evo so that i can see what is in memory and what flies around. Disadvantage: i need to build that CPU first

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 29/05/2026

Quick info: Picomage is finished, wrote that one down in just a few hours but i am now sitting at the OS. I already managed to get a suprisingly complex peemptive scheduler within 256 byte of memory but now i need to get some drivers in like for graphics. And i only have 2 KiByte of RAM for it all

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 22/05/2026

Have to do a quick intervention and focus on Picomage. Ya already know of Picowizard, the very tiny 8-bit RISC ISA and CPU i made. This is basically the larger brother, coming with ring modes, virtual addressing, interrupts and a timer. So everything needed for an OS but in a still tiny 8-bit CPU!

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Reposted by RascalFoxfire aka. the funky CPU fox

XOI Nova @xoinova.bsky.social · 20/05/2026

Sorry to ask about stuff like this, but can you guys report this art thief on Twitter? (Furry4Ever) Would do me a really big solid, thanks in advance. x.com/Furry4Ever/s... And an archive in case they decide to chicken out and hide! archive.is/7SG2m

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 18/05/2026

i am still alive! But i am sunk in university stuff again. Please hold the line

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 04/05/2026

Landed in development hell. The depth buffer streaming mechanism is more funky than i thought, argh... would be nice if something works from the very start on

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 27/04/2026

The GPU memory unit finally works. Now i just need the depth buffer and i should be able to draw points again

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 18/04/2026

Progress is slow, got sidetracked again with a RISC-V emulator for my large 32-bit ISA. But i at least fixed a lot of bugs in my toolchain!

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 13/04/2026

Okay, got some more functions which should help. E.g. my tool chain can now do arbitrary interleaving and create multiple files for multiple memory banks. Nothing too fancy but makes life easier. Aighty, onward to the GPU madness again

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 10/04/2026

Aight, my toolchain finally works again. It is far less wonky now but i need to rewrite some portions of it later. Aaaaaanyway, gonna now expand it now with more functions like makro insertion and shit to make my life easier before i further tinker on the GPU

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 07/04/2026

Got more issues in my GPU mainly with the memory addressing units for the loaded and stored data stream. Aaaaaand on top of it my toolchain broke down. The fix isn't too bad but i'll take the time to rewrite the bad parts of it in one go. What a day to start the week...

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 04/04/2026

Okay, i messed up... my GPUs state machine is broken. The point rasterizer works now and is 4 times as fast as in the old GPU but i can't show it rn. Debug and cookie time

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 04/04/2026

Okay, the great call for today: i will tomorrow get the better GPU to raster points

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 28/03/2026

Aight, back on track and currently looking into Wus line drawing algorithm!

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 27/03/2026

Slowly getting my stuff running all again. Should be able to soon do GPU stuff again!

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 22/03/2026

Okay, some updates: my PC broke... all data is safe but my laptop mobo is done. Got one of these very small office PCs which funnily enough has a higher CPU performance than my brick

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 16/03/2026

Ah yes, time for funny compiler stuff. I think i got something which could be used as an IR language. But now to the actual funny question: how does instruction selection work? Time to read into the papers and also look a lil on LLVM and GCC

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 14/03/2026

Okay, finally managed to optimize my universal assembler and added some more necessary functionality. Programming SuperSatellit, Cuboid and basically any ISA imaginable should now be very easy going. Still a lot of construction sides but next shall come a simple linker and basic compiler functions

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 13/03/2026

Currently more focussing on my own developed toolchain. Soon i will build further on Cuboid, please hold the line

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 11/03/2026

Cuboids line rasterizer is running! It can raster a list of single lines or a list of linked lines. So here the crystal from yesterday with different scale/rotation matrices but with lines. Next thing will be triangle rasterization

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 09/03/2026

Finally something to show! Here the output of my GPU running a shader which transforms a hexagon crystal in different ways. Fully programmable, runs independent of the CPU and is suprisingly fast (1 vertex transformation per 4 clock cycles). Next stop: expanding the rasterizer and texturing!

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 28/02/2026

Another side quest done, got my NISC ISA into logisim as its most basic (BI32) instruction set. Currently testing a lot. Hmmm... lets see what my brain is going to do next

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 21/02/2026

Okay, i am finally done with the core parts of the NISCy hybrid ISA. I am satisfied with the result as it is quite elegant. Now i have the urge of putting it in SysVerilog and compare it with an equal optimized RISC-V. But eh, next goes back to the GPU, then the compiler

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 11/02/2026

Switched tasks again, redesigned my entire NISC hybrid arch. The old lacked immediate formats and the compressed set was just garbage. What i have now is finally usable

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 02/02/2026

Currently a lil busy on my end so no new updates on my GPU. But it could be possible that my Picowizard CPU finally gets a real use case

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 23/01/2026

Got something of a simple rasterizer. I basically just do a limit test and then horizontally raster one line each. Bresenham for the win. Now to the testing and finishing the stream mechanism...

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 15/01/2026

Some updates! I worked further on the GPU, fixed some timing issues with the transformer unit and nearly finished the memory unit responsible for parallel loading and storing a data stream via its two low bit interleaved RAM blocks (Logisim Evo doesn't have simple dual port RAM...)

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 06/01/2026

Okay, slowly getting behind rasterization. But still will take a while. I guess i will move the UV calculation to the future

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 05/01/2026

I think i am a lil oversaturated with circuit tinkering rn. Gonna take a lil break but will be back very soon

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 31/12/2025

Current status: binge watching videos about rasterization techniques

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 27/12/2025

Slow progress, still studying the OpenGL thing but i guess i take the simple route out here and go with my gut feeling. It is my first 3D GPU so it is all experimental and nothing to shame when not working that well

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 24/12/2025

Progression is very slow rn. Still need to think about how to build the rasterizer. I guess it is time making a deep dive into OpenGL

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 21/12/2025

okay, minor correct, now the vertex unit runs. And i think i found a solution for primitive assembly and some parts of rasterization... i hope i can soon render my first dot on the screen

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 20/12/2025

Okay, vertex pipeline in my GPU done. It is literally the most stupid approach but it should hold for all vertex shader operations. Onward to primitive assembly! I have zero idea how to do that...

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 18/12/2025

I found a solution that also solves my rotation problem! I use 16 arch registers as a 4 x 4 transformation matrix which i send to each execution pipeline for different purposes. As a transformation/vertex unit i'll just build a simple tensor core using that matrix on the vertics stream

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 17/12/2025

Update on my GPU: i am redesigning the GPU from ground up. The streaming CISC idea was good, the organization not

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 11/12/2025

I think i found a solution for the rotation matrix conundrum. Next i'll try to build the rasterizer as quick as possible to at least get some point drawing action ready

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RascalFoxfire aka. the funky CPU fox @rascalfoxfire.bsky.social · 09/12/2025

Brain puzzle time: how to pipeline an execution unit responsible for rotating a vertex? Well, for a single axis rotation we need sin, cos and -sin, with a little magic just two lookups. Quite a funny one but i should get it running within this week

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