On Wed, 5 Nov 2014 18:07:17 -0500, Tony Harminc <t...@harminc.com> wrote:

>Architecturally (at both the P of O and z/OS levels) the bar may well
>be infinitely thin, but that doesn't mean that IARV64 and friends will
>hand you an address between 2GiB and 4GiB.

As others have mentioned, IARV64 _will_ give you back storage between 2GiB and 
4Gib, if you ask it to using the right (perhaps undocumented except in the 
code) parameters. However, asking for that storage is not part of the intended 
customer programming interface; it is intended (as I remember) only for use by 
Java.

-- 
Walt

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