[Libre-soc-dev] scalar instructions and SVP64

Luke Kenneth Casson Leighton lkcl at lkcl.net
Wed Mar 10 18:20:37 GMT 2021

crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

On Wed, Mar 10, 2021 at 6:15 PM Jacob Lifshay <programmerjake at gmail.com> wrote:

> > I can however imagine that adding a special case for VL==0 could result in
> > many more gates/complication for the OoO/scoreboard execution engine.
> >
> That's handled in the fetch pipeline before the scheduler in the VL-loop
> stage, so the stuff after that doesn't know/care since the instructions are
> removed before then.

this is factually wrong.  explained already.


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