[Libre-soc-bugs] [Bug 555] encode a dotproduct in a single instruction

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Sun Apr 30 13:14:34 BST 2023


https://bugs.libre-soc.org/show_bug.cgi?id=555

Luke Kenneth Casson Leighton <lkcl at lkcl.net> changed:

           What    |Removed                     |Added
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                 CC|                            |konstantinos at vectorcamp.gr

--- Comment #12 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
ok i think i worked it out: konstantinos suggested Matrix Determinant,
which if added as a REMAP Schedule could produce the fmacs needed.
the alternative is a REMAP Indexed Schedue, it just depends how common
this is.

https://libre-soc.org/irclog/%23libre-soc.2023-04-29.log.html#t2023-04-29T22:16:42

example: Indexed is just a couple of SHAPEs, for 2x2 it is two 2x8-bit
packed indices, those can be loaded with ori.  oh wait this is
dotproduct :)

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