Perform RACF® authorization checking, using the standard form, for a tape volume for READ access only. The tape volume is pointed to by register 8 and the volume's access level is in register 5.

RACROUTE REQUEST=AUTH,ENTITY=((R8)),CLASS='TAPEVOL',  X
         ATTR=READ,WORKA=RACWK,                       X
         ACCLVL=((R5))
   ⋮
RACWK    DS   CL512