[libre-riscv-dev] IEEE754 FPU turning into ALU with Reservation Stations

Luke Kenneth Casson Leighton lkcl at lkcl.net
Fri Mar 15 10:01:01 GMT 2019


On Fri, Mar 15, 2019 at 12:32 AM Luke Kenneth Casson Leighton
<lkcl at lkcl.net> wrote:

> On Thu, Mar 14, 2019 at 4:18 PM Aleksandar Kostovic
> <alexandar.kostovic at gmail.com> wrote:
>
> > also i want you to get involved as well like for when we first did adder
> > the old way. with both of us working we done that very quickly and your
> > guidance helped a ton.
>
> ok good idea, so track this one first:
>
> commit ca218a65dc9af73965a5c4f105a780ed04b588e0 (HEAD -> master, origin/master)
> Author: Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> Date:   Fri Mar 15 00:31:30 2019 +0000
>
>     add use of FPState, not being used yet

and this one, aleksander:

commit a36447fcd4d4f049b7127e1fc02dc1390d05fa75 (HEAD -> master)
Author: Luke Kenneth Casson Leighton <lkcl at lkcl.net>
Date:   Fri Mar 15 09:59:07 2019 +0000

    instantiate 2 FPGetOp instances and use them.  a little awkwardly.


this is going to be a bit of a slow process, i apologise.  i recommend
doing geta first then getb, make sure each works before moving to the
next stage, run python3 test_mul.py to determine if the changes are
correct, ok?

l.



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