> I wonder if someone could give me a hint as to how I access a 
> dataspace or a 64 bit memory object in IPCS within a VERBX routine. 
> I've got to eventually do both but any assistance with either would 
> be appreciated.
> 
> I've already got code to access 31 bit storage and either format it 
> myself and use the standard print service or use the ADPLSFMT 
> service.  It's not as obvious to access these others.

For accessing storage using 64-bit addresses and data spaces, you need to 
use the 
Storage Access function of the  Symbol Service:


 z/OS V1R13.0 MVS IPCS Customization 


10.2.17 Symbol Service


The symbol service enables exit routines to process symbols and obtain 
data represented by the symbols. 
The symbol service differs from the get and equate symbol services by 
requiring callers to pass 
parameter list XSSP (mapped by mapping macro BLSRXSSP) that describes 
which symbol 
functions to use. For reasons of completeness and compatibility, some of 
the symbol service 
functions duplicate the functions provided by the equate symbol and get 
symbol services. 

The functions provided by the symbol service are: 

Equate Symbol 
This function adds the specified symbol to the dump directory. The symbol 
can be for a literal value. 

Get Symbol 
This function retrieves the equate symbol record (ESR) for the specified 
symbol. 

Storage Access 
This function accesses the storage requested in the equate symbol record 
that is passed as input. 

Validity check 
This function allows the user to request a validity check for a control 
block and the creation of an SA record (BLSRSASY macro). 

Check for Active TCB 
This function allows the user to determine if the task described by the 
passed equate symbol record was active at the time of dump. Checks for 
active tasks are only valid on a SADMP. 

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



Jim Mulder   z/OS System Test   IBM Corp.  Poughkeepsie,  NY

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