On Mon, Sep 17, 2012 at 5:42 PM, John Gilmore <[email protected]> wrote:
> I doubt that what you want is available without caveats.
>
> The notices section of all recent versions of the publication you call
> the PoOps---Why the 's'?--- and I prefer to call the PrOp contain some
> such weasel language as
>
> <begin extract>
> All facilities discussed in this publication are not necessarily
> available on every model.  Furthermore, in some instances the
> definitions have been structured to allow for some degree of
> extendibility (sic), . . .   For information about the characteristics
> and availability of facilities on a specific model see the functional
> characteristics publication for that model.
> </end extract>
>
> You did not make clear just what you want to do with this information;
> I can only guess, perhaps wrongly, thjat you want to relate the
> usability of some assembly-language features to model numbers; and you
> may well be able to do something of that sort usefully if only very
> inexactly.
>
> John Gilmore, Ashland, MA 01721 - USA
>
The main item that varies between models is how much physical and
virtual memory you can actually address.  The z900 jumped beyond 31
bits, but the maximum creeps up a few bits with every model.
-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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