[Libre-soc-dev] pysvp64asm: opcode setvli not supported

Luke Kenneth Casson Leighton lkcl at lkcl.net
Tue Jun 15 17:25:00 BST 2021

On Tue, Jun 15, 2021 at 5:02 PM Lauri Kasanen <cand at gmx.com> wrote:

> On Tue, 15 Jun 2021 16:48:02 +0100
> Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
> > can i leave that with you, i am currently doing fmadds and fmsubs.
> Yeah that's mine.

appreciated.  currently trying to track down why fmadds isn't part of the
list when it quite clearly is... ah got it.

> > i haven't added Rc=1 floats yet.  if you need them you need them.
> I may use a temp var and do an fsub instead, that way there's no branch.
> Though I hope 0 - 0 doesn't also result in -0...

-ve number minus a -ve number should always be +ve even if it's zero.

you *might* get away with fsel.


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