Re: Userland emulator

[Rhialto <rhialto%falu.nl@localhost>]

On Mon 25 Mar 2013 at 20:10:18 +0100, Johnny Billquist wrote:
> None, as far as I know. It was defined in VARM, but never
> implemented. (But I might be wrong.)

What sort of special support would be needed? I know that x86 has
instructions which behave detectably different in user mode and
supervisor mode without trapping (which causes virtualisation to be
difficult) but I can't imagine that the VAX designers made the same
mistake. Even IBM 360 hardware can run VM (the operating system) under
VM.

>       Johnny
-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- The Doctor: No, 'eureka' is Greek for
\X/ rhialto/at/xs4all.nl    -- 'this bath is too hot.'