John Macfarlane would be the person to talk to:
https://github.com/johnmcfarlane/fixed_point/blob/develop/doc/p0037.md


On 26/12/2023 11:22 pm, Paul M. Bendixen via SG14 wrote:
> Hi list
>
> I was just listening to CppCast where they were discussing SIMD, and it
> was mentioned in passing that SG6 is looking into fixed point arithmetic.
>
> I believe this could have some interest in SG14 (especially regarding
> the conversation last time about finance and int64_t, and general
> applicability in the microcontroller space)
>
> Does anyone have any connection with SG6 (i would think maybe Guy
> Davidson?, but perhaps also others) and could tell if they are currently
> working on a proposal.
> If they are, I think it would be good to spar with them on this as early
> as possible.
>
> Best Regards
> Paul M. Bendixen
>
> --
> • − − •/• −/• • −/• − • •/− • • •/•/− •/− • •/• •/− • • −/•/− •/• − − •−
> •/− − •/− −/• −/• •/• − • •/• − • − • −/− • − •/− − −/− −//
>
> _______________________________________________
> SG14 mailing list
> SG14_at_[hidden]
> https://lists.isocpp.org/mailman/listinfo.cgi/sg14