[libre-riscv-dev] [Bug 208] implement CORDIC in a general way sufficient to do transcendentals

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Tue May 5 15:58:40 BST 2020


https://bugs.libre-soc.org/show_bug.cgi?id=208

--- Comment #43 from Michael Nolan <mtnolan2640 at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #41)
> 
> yes.  an "Op".  this is what the "Op" field is for... see... ahh.. 1sec...
> DivPipeCoreConfig and DivPipeCoreOperation (etc.)
> 
Ok 
> 
> it's actually really important to conform to this API because it's where
> the "cancellation", identifier information etc. critically necessary for
> the use of the pipeline in the scoreboard system is all placed.

Oh hold on, I thought that cancellation bit was for the pipeline to produce a
result early. Since the cordic doesn't do that, I left it out. It sounds like I
need to add that back in huh?

> 
> can you do that move?  the unit test as well.

Sorry, you mentioned nmutil and never said which place you thought it should
go. nmutil or fpcommon?

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