[Info-vax] x86S Specification

[Single Stage to Orbit]

On Thu, 2024-10-17 at 19:27 -0400, Arne Vajhøj wrote:
> > One of the things proposed for removal is the Ring 1 and Ring 2
> > privilege
> > modes.
> > 
> > Does OpenVMS on AMD64 make use of these modes?
> 
> My understanding of the proposed changes are:
> 
> 64 bit OS 64 bit app - works
> 64 bit OS 32 bit apps - works
> 32 bit OS 32 bit apps - gone
> 32 bit OS 16 bit apps - gone
> 16 bit OS 16 bit apps - gone
> 
> VMS x86-64 is 64 bit OS 64 bit apps (the fact that pointers are
> often stored with only low 32 bit bit in RAM is irrelevant).

His question was about the ring priviledge modes, not what apps and
what OS will run on the proposed architecture. If you don't know, say
so!
-- 
Tactical Nuclear Kittens