[Info-vax] OpenVMS I64 V8.1 "Evaluation Release"?

[Nomen Nescio]

glen herrmannsfeldt <gah at ugcs.caltech.edu> wrote:

> Nomen Nescio <nobody at dizum.com> wrote:
> > glen herrmannsfeldt <gah at ugcs.caltech.edu> wrote:
> 
> >> The z/ Principles of Operation is on the IBM web site. Last I knew,
> >> they were reasonably priced, for the size, if you wanted to buy one.
> >> Way over 1000 pages long.
> 
> > That is the architecture manual. It does not describe the implementation
> > except as it is exposed to the user ie. does not include anything about the
> > physical processor etc. The virtual memory is full 64 bit support. We cannot
> > answer the physical memory question from the POPS.
> 
> There were two questions, one about the architecture and one about
> the implementation. I wanted to finally answer the former.

I realize that and you did. My posts do not appear in chronological order so
this happens sometimes. Sorry about that.


> As someone else noted, VAX doesn't allow for all 32 bits in the
> physical address, even at the architectural level. 

That was kind of my point about z/OS, that as far as I could tell, it does.

> Also, the details of the five levels of tables, and the ways to
> use only three or four when addresses aren't so big, are all
> described.
> 
> -- glen