On Thu, Oct 05, 2023 at 03:53:48PM -0400, Joseph Reichman wrote:
> Can ADPLSACC Service code access 64 bit storage

Context?

Oh, IPCS

z/OS MVS IPCS Customization
https://www.ibm.com/docs/en/zos/2.1.0?topic=services-invoking-exit-router

https://www.ibm.com/docs/en/zos/2.1.0?topic=sas-requirements

Field ADPLPAAD in ADPLPACC must contain the address of the requested dump data.

MVS Data Areas (ABE - IAR)
https://www.ibm.com/docs/en/zos/3.1.0?topic=iar-blsabdpl-information

         The following bit governs the masking of register zero prior
         to its use by the storage access service as a virtual
         storage address. If it is off, X'7FFFFFFF' will be
         logically ANDed with register zero to obtain the requested
         address. If it is on, X'00FFFFFF' will be logically ANDed
         with register zero to obtain the requested address.

Hard to fit 64 bits in x'7fffffff'

Don't know the real answer.  The first question I'd ask is if
the 64 bit storage was in the dump.  2nd is how to get to it...

take a look at:

https://www.ibm.com/docs/en/zos/3.1.0?topic=router-symbol-service

Symbol Service

https://www.ibm.com/docs/en/zos/3.1.0?topic=router-symbol-service

Note that in OS/390® Release 10 and higher, the symbol service supports
64-bit addresses and lengths.

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