[Libre-soc-isa] [Bug 817] Big Integer Math (sv.adde, sv.subfe, sv.madded, 128 by 64-bit -> 64-bit div/rem, maybe more...)

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=817

--- Comment #59 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #58)

> should probably actually be named maddedus because RA is unsigned and RB is
> signed

hmmm hmmm these are among the precious EXT04 VA-Form, but should
be justifiable: there is mullw/mulhw etc. already.  can you do
the pseudocode?

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