[Libre-soc-dev] GPR-to-FPR and FPR-to-GPR move operations

Luke Kenneth Casson Leighton lkcl at lkcl.net
Thu Jun 3 10:17:15 BST 2021


On Thu, Jun 3, 2021 at 2:40 AM Jacob Lifshay <programmerjake at gmail.com>
wrote:

> On Sat, May 29, 2021 at 2:05 AM Luke Kenneth Casson Leighton
> <lkcl at lkcl.net> wrote:
> >
> > links:
> > https://bugs.libre-soc.org/show_bug.cgi?id=230#c71
>
> I finished writing the initial draft of the RFC that was requested in
> the OpenPower/Libre-SOC weekly sync meeting:
>

fantastic. am just tidying up formatting, it ensures i read it all
carefully.

https://libre-soc.org/openpower/sv/int_fp_mv/ (you may need to refresh)

hmm the float-load-immediate idea, i like it: the only thing is, it takes up
a heck of a lot of opcode encoding space.  will discuss on the bugreport,
perhaps a 64-bit prefixed version could be done.

l.


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