[Info-vax] x86S Specification

[Single Stage to Orbit]

On Fri, 2024-10-18 at 06:50 -0400, Arne Vajhøj wrote:
> > His question was about the ring priviledge modes, not what apps and
> > what OS will run on the proposed architecture.
> 
> I read the question. And I tried to answer.
> 
> No changes for 64 bit OS 64 bit apps - and that includes VMS.
> 
> (excluding boot process, which need to do some stuff before
> it actually becomes a running 64 bit OS)
> 
> The details about why has been mentioned a few times
> previously.
> 
> x86-64 in long mode only support 2 modes in PTE's, so
> VMS x86-64 is a hardware 2 mode OS 4 mode OS - U in ring 3,
> S, E and K in ring 0.

So in reality, user space and kernel space. That's a bit crap, tbh,
there are times where drivers, kernel code and user space could use a
bit of hardware separation.
-- 
Tactical Nuclear Kittens