[Libre-soc-bugs] [Bug 555] encode a dotproduct in a single instruction

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=555

--- Comment #11 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #10)
> https://bugs.libre-soc.org/show_bug.cgi?id=817#c39
> 
> with the precedent being set for 3-in 2-out regs for FMA in integer, i
> see no reason why the trend should not continue in FP, is that going
> to work?

no, it would require 4-in 2-out:
https://bugs.libre-soc.org/show_bug.cgi?id=817#c40

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