Been studying RISC-V for… I think a year now. Bought the booklet outlining the ISA’s modules, and have been working down from there.
I have seen various startups and actual products, as well as a bunch of simulators, but I haven’t really seen any projects trying to design a RISC-V CPU from the ground up.
Are there any groups doing this? I don’t think I’m at a point where I could meaningfully contribute, I’m mostly interested for educating myself.
I guess just making sure my understanding aligns - RISC V being the instruction set, and you are wondering if anyone is building a CPU to implement it?
Came across a couple examples, if that’s what you mean
Hardware
https://www.sifive.com/technology/risc-v
Cloud
https://www.nextplatform.com/2023/02/02/the-first-risc-v-shot-across-the-datacenter-bow/
I know LTT has a bit of a bad wrap these days. But he had a video on RISC V a while ago, in a desktop computer https://youtu.be/vaMxTSm53UU?feature=shared
I’d recommend the Explaining Computers videos on RV over LTT, especially since the guy at EC does a lot more research into RISC-V, and does yearly “state of RISC-V” videos.