[Libre-soc-isa] [Bug 1077] evaluate removing /vec234 from instructions, move subvl to SVSTATE

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1077

--- Comment #16 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
also Matrix REMAP is very expensive to set up, large latency expected,
four SVSHAPE SPRs to be written to, where PACK/UNPACK is 2 bits in
SVSHAPE and consequently extremely quick to establish. this has *all*
been written in detail in the spec, *please* read it.

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