[Libre-soc-bugs] [Bug 782] add galois field bitmanip instructions

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=782

--- Comment #66 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #63)
> (In reply to Jacob Lifshay from comment #61)
> > if we did that, we'd want to have additional separate variants that allow
> > you to overwrite the term input rather than a factor input (inspired by
> > x86's fma ops).
> 
> which in turn would require a rewrite of SV REMAP to match it
> and it took about 10 weeks to write.

couldn't we just use the 3-arg SVP64 prefix? this is exactly like rlwinm except
it has 3 registers.

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