[Libre-soc-isa] [Bug 535] setvl/setvli encoding & future reg file expansion

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Tue Dec 1 16:16:14 GMT 2020


--- Comment #4 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
ha! totally cool! one of the things that can be done is, Rc=1 will set CR0
based on the new value of VL.

that means that no extra test of "VL >= 0" would be needed in some
circumstances, meaning that an entire instruction could be saved in some types
of loops.  cool!

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