[Libre-soc-dev] Hardware-accelerated specialized instructions

[Cole Poirier]

On Thu, Dec 10, 2020 at 4:25 PM Jacob Lifshay <programmerjake at gmail.com> wrote:
>
> On Thu, Dec 10, 2020, 16:14 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> wrote:
>
> > you make a hardware triangle fill unit like Jeff did, it's not going
> > to do multiplication, is it?
> >
>
> it might, since the per-pixel function is just a vec4 dot product followed
> by a reciprocal and a pile of mul-adds.

So the hypothetical pixel instruction in this case would use a mul
unit, an add unit, and a specialized reciprocal unit?

Cole