[Libre-soc-isa] [Bug 924] potential major opcode allocation for SVP64

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=924

--- Comment #25 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #23)
> (In reply to Jacob Lifshay from comment #20)
> > example encoding scheme (just complete enough to illustrate my point):
> 
> fleshed out as "alternative encoding (3)":
> 
> https://git.libre-soc.org/?p=libreriscv.git;a=commitdiff;
> h=477eb56ba72f4c0538fe5fc23009a06b16c82828

i already said "no" to Rc=1 specialisation.

that was a huge amount of time wasted by going down a rabbithole
where i had already said "no".

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