[Libre-soc-bugs] [Bug 899] implement additional Transcendentals in simulator

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=899

--- Comment #14 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Luke Kenneth Casson Leighton from comment #13)
> (In reply to Jacob Lifshay from comment #12)
> 
> > I found and updated the hack to detect if an instruction is SVP64 FFT or
> > not, converting it to:

rright.  ok.  so those detections use_svp64_fft mode go through
to DecodeOut2 which has to know about all 3-in 2-out instructions
having an (implicit) RS operand

it *used* to be the case that the same use_svp64_fft was going to
be for different 64-bit op meanings from 32-bit but that was dropped.

but the implicit-RS detection has to stay.

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