[libre-riscv-dev] [Bug 333] investigate why CR pipeline code took 100% CPU and locked up generating ILANG

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Thu May 21 18:46:02 BST 2020


https://bugs.libre-soc.org/show_bug.cgi?id=333

--- Comment #14 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Luke Kenneth Casson Leighton from comment #12)
> (In reply to Michael Nolan from comment #11)
> > Luke, there's not a way to do something like a C union in nmigen is there?
> 
> no, you just push bits around.  it's up to the recipient to have the
> required state to correctly interpret them.

everything in nmigen comes with an implicit typecast to void* ... :)


whitequark would very much like to fix this.  we actually use it in a lot of
places.

however the fix is a massive systematic fundamental design rewrite and would
involve introducing c-like unions.

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