[libre-riscv-dev] [Bug 187] SimpleV vector operation semantics: reading scalar inputs before writing any outputs (deferred to Libre-SOC v2)

bugzilla-daemon at libre-riscv.org bugzilla-daemon at libre-riscv.org
Fri Feb 28 16:05:24 GMT 2020


Jacob Lifshay <programmerjake at gmail.com> changed:

           What    |Removed                     |Added
            Summary|SimpleV vector operation    |SimpleV vector operation
                   |semantics: reading scalar   |semantics: reading scalar
                   |inputs before writing any   |inputs before writing any
                   |outputs                     |outputs (deferred to
                   |                            |Libre-SOC v2)

--- Comment #9 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #8)
> so apologies, does that make any sense, jacob?  basically i'm having
> an extremely tough time keeping track of the design in my head, which
> took an exceptionally long time to get straight, in amongst a stack
> of management, admin *and* other technical tasks, and changing it,
> particularly to add complexity without a compelling (disaster-avoiding)
> reason is just... not a good idea.

Yeah, that all makes sense.

I still think it's still a good idea, we just ran out of time for Libre-SOC v1.

I was hoping we could change it before we're stuck due to
backward-compatibility constraints.

I'll leave the bug open to defer it to Libre-SOC v2.

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