[libre-riscv-dev] [Bug 336] ALU CompUnit needs to recognise that RA (src1) can be zero

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=336

--- Comment #45 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Cesar Strauss from comment #43)

> So rdmask, as an input, must be driven and held high, for all the time that
> busy_o is active?

yes - for now.  i will look into whether (and how, and if) it should be
moved into CompXXXOpSubsets (into oper_i).

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