jan kili (Feb 05 2025 at 04:39): jan kili (Feb 05 2025 at 04:39):This normie is seeing some 2025 RISC-V hype. I don't know how instruction sets work or what support entails. RISC-V = Roc Is Soon Compatible -with- Very funky hardware?
Brendan Hansknecht (Feb 05 2025 at 04:55):Should be just a config in llvm for the most part. So not hard to add. I hacked a random arm chip into roc before. Would be the same work.
Brendan Hansknecht (Feb 05 2025 at 04:55):I guess one of the problems is that often times arm and riscv have like infinite different configs.
jan kili (Feb 05 2025 at 04:57):Ah, so like our releases would add riscv-foo.tar, riscv-bar.tar, riscv-baz.tar, ... etc?
jan kili (Feb 05 2025 at 04:58):I'm glad it doesn't seem hard to you! I don't foresee any personal need for it, just curious.
Brendan Hansknecht (Feb 05 2025 at 05:01):Oh, I was more thinking of cross compiling. But we could have native toolchains as well.
Brendan Hansknecht (Feb 05 2025 at 05:02):Also, you can always compile for a minimal subset if you aren't worried about max perf, but a lot of embedded arm and riscv stuff likes to compile for the exact chip
Brendan Hansknecht (Feb 05 2025 at 05:02):for releasing the compiler on riscv or various forms of arm, we almost certainly would just do the minimal subset.
jan kili (Feb 05 2025 at 05:04):Gotttcha, that makes sense. Yeah my context for asking is that Framework Laptops just released a RISC-V mainboard option, and I wondered how much daily driving it would make my Roc dev life harder.
Brendan Hansknecht (Feb 05 2025 at 05:06):Just search CpuModel on this page: https://ziglang.org/documentation/master/std/#src/std/Target/arm.zig
Brendan Hansknecht (Feb 05 2025 at 05:06):All with their own combination of config settings
Brendan Hansknecht (Feb 05 2025 at 05:06):Not sure how/if roc would want to expose something like that.
jan kili (Feb 05 2025 at 05:07):I imagine Roc itself wouldn't be a major contributor to cutting-edge daily-driver woes, whether on RISC-V or like a Raspberry Pi.
Brendan Hansknecht (Feb 05 2025 at 05:07):a major contributor to cutting-edge daily-driver woes
what do you mean by this?
jan kili (Feb 05 2025 at 05:11):Like if my primary dev machine were a laptop powered by a RISC-V mainboard (or a Raspberry Pi chip or something else funky), I'd bump into plenty of hardware support issues but Roc wouldn't be the source of >5% of them.
jan kili (Feb 05 2025 at 05:12):I expect most of my issues would be either unrelated developer tools or things upstream/downstream of Roc (like Zig & platforms, respectively)
Last updated: Jun 16 2026 at 16:19 UTC