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Concerns over mask register design in RISC-V Vector Extension v1.0

1 pointsby gchadwickalmost 3 years ago

1 comment

gchadwickalmost 3 years ago
Also worth reading this issue: <a href="https:&#x2F;&#x2F;github.com&#x2F;riscv&#x2F;riscv-v-spec&#x2F;issues&#x2F;617" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;riscv&#x2F;riscv-v-spec&#x2F;issues&#x2F;617</a><p>I think it&#x27;s a fascinating discussion. There&#x27;s been some disquiet at this design choice amongst a minority for a while from what I can tell. Who will be proven right? Perhaps this will be one of the warts of RISC-V we&#x27;re looking back at 10 years from now wishing it had been dealt with better. Perhaps instead it&#x27;ll prove to be a sound design decision.<p>All the established ISAs have various warts that make hardware implementation a pain or compiler writing harder than it should be. The decision making for those and their genesis has all been behind closed doors. Are we seeing a similar misstep now happen in the open?