[anonzzzies]

I noticed I missed it and so I went back to it a few years ago. I have old systems (mostly from the 70-90s; a few newer because my love for Sun Sparc & pre-Intel SGI) and newer ones like RISC-V boards and low-powered small devices to thinker with. None of this has any commercial value but it feels so much better than the LLM grifting / code slinging for profit. I wish I found a way to combine them, but I feel it's not possible.

[cbm-vic-20]

One of my "some day" / "thought experiment" projects is to create a small RISC-V RV32EC processor that would only be able to access 64k of its memory space, but would fit on a 40-pin IC: 16 pins of address, 8 pins of data, some interrupt and timing pins, etc. Basically like a 6502 or 8080/Z80 with the RV ISA. I can already think of some "fun" issues like requiring four read/write cycles per load/store operation.

[jecel]

I did a 16 bit processor that is compatible with RISC-V at the assembly language level but has its own binary encoding:

https://github.com/jeceljr/digitalCPUzoo/tree/main/drv16

It is meant as a helper processor in larger FPGA projects. These need less than 64KB of memory. drv16 is about the same size as the tiniest RISC-V (SERV, Glacial) without the huge performance penalties these have.

[theragra]

Yeah, I spent last summer learning and programming attinys in Arduino and soldering small hacks.

This is certainly appealing in comparison to microservice monstrosity I write in a team at work.