On Mon 31 Jan 2022 at 21:02:17 (-0500), Stefan Monnier wrote: > Greg Wooledge [2022-01-31 16:45:52] wrote: > > On Mon, Jan 31, 2022 at 04:37:37PM -0500, Stefan Monnier wrote: > >> BTW, for the twisted-minded it's probably possible to run a 64bit > >> userspace on a 32bit kernel. > > No. Or at least, not that I've ever heard of. If technology has been > > invented to make this possible, it's new to me. > > I don't think there's any need to invent anything for that. I don't see > anything particularly hard about emulating a 64bit instruction set on > a 32bit system.
I wasn't aware that anybody did emulate the /instruction/ set. I was under the impression that such systems only ran on 32-bit systems that were themselves running on 64-bit hardware. Just a more complicated host-guest relationship in that case. > Performance may not be great, but that's a secondary concern. Cheers, David.
