[Libre-soc-bugs] [Bug 230] Video opcode development and discussion

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Sun Dec 13 18:48:04 GMT 2020


https://bugs.libre-soc.org/show_bug.cgi?id=230

--- Comment #32 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Luke Kenneth Casson Leighton from comment #31)
> something like this:
> 
>    https://libre-soc.org/openpower/sv/mv.vec/

wow. in combination with swizzle, twin-predication, elwidth overrides, and
saturation i had no idea until i looked at it how stupidly powerful and
flexible this instruction is.

the only thing i just realised is, damn, it really does need to be joined by a
two-in and two-out variant.

the reason is that you may have some left audio in one vector and right in
another.  they need zipping up.  likewise for pixels.

l.

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