Perform third-party RACF® authorization checking, using the standard form, to provide READ access for a user to a data set residing on the volume pointed to by register 8. Register 7 points to the data set name, and A is an 8-byte declared field padded with blanks.

RACROUTE REQUEST=AUTH,ENTITY=((R7)),WORKA=RACWK,           X
         VOLSER=(R8),CLASS='DATASET',ATTR=READ,            X
         USERID=A
   ⋮
RACWK    DS   CL512