[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 #56 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #55)

> uuh...should be pretty obvious?? 

we've already established that to me it isn't :)
am getting there but it would help to doublecheck.
GF2 and 2^m are currently mixed in with each other
in the wiki page

> i'll add them in the morning if it isn't.

star. eek. 4am for you. tsk tsk :)

> Rc isn't super useful for most GF operations, eq is the only CR bit that
> could occasionally be useful.

true but madd seems not to have it for similar space reasons iirc.
or is it OE=1 cant recall immediately

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