3 ms·
Yes. You don’t need to sign up for a membership or some other thing to manufacture chips that comply with the standard.
by RyJones 5y ago
Yes. You don’t need to sign up for a membership or some other thing to manufacture chips that comply with the standard.
- freemint 5y agoBut it also means people are implementing modified ISAs (such as this CPU which has a non standard V extension) which sucks for compatibility.
- snvzz 5y ago>But it also means people are implementing modified ISAs... which sucks for compatibility. I've seen this a lot, both as misunderstanding and as FUD. RISC-V was designed from the start with extensions in mind. This includes allocations for custom extensions that aren't standardized by RISC-V. >(such as this CPU which has a non standard V extension) There's nothing actually "incompatible" with this SoC, in the conflicting sense. D1's V does naturally use these custom extension allocations and thus does not collide with the standard V. It will therefore run RV64GC code just fine, and an illegal instruction exception will trigger should standard V code be encountered.