[libre-riscv-dev] multiplier 8x8 products

Jacob Lifshay programmerjake at gmail.com
Fri Aug 23 23:55:33 BST 2019


On Fri, Aug 23, 2019, 15:12 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
wrote:

> On Fri, Aug 23, 2019 at 10:26 PM Jacob Lifshay <programmerjake at gmail.com>
> wrote:
> >
> > On Fri, Aug 23, 2019, 14:12 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> > wrote:
> >
> > > Hi Jacob,
> > >
> > > The partitioned multiplier hits every cycle with a massive 64 8x8
> > > multiplies. Can you think of a way to reduce that?
> > >
> > one part that will reduce that is that multiplies are commutative, so
> that
> > reduces to 32 8x8 multiplies.
>

my bad, was thinking of squaring.

Jacob


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