$NAM_STORE

   The $NAM_STORE macro moves user-specified values into fields of
   the specified NAM block. The expanded $NAM_STORE code executes
   at run time on a previously initialized (allocated) NAM block,
   in contrast to the $NAM macro, which initializes a NAM block at
   assembly time. The $NAM_STORE macro must reside in a code program
   section.

   Format

     $NAM_STORE  NAM=nam-address,

                 DID=#directory-identification,

                 DVI=#device-identification,

                 ESA=expanded-string-address,

                 ESS=#expanded-string-size,

                 FID=#file-identification,

                 NOP=<NOCONCEAL NO_SHORT_UPCASE PWD SRCHXABS

                 SYNCHK>,

                 RLF=related-file-nam-block-address,

                 RSA=resultant-string-address,

                 RSS=#resultant-string-size