Indirect value

You can code an expression of the form (*,expr) only as explained in the preceding section. The address specified by expr is indirect; it is the address of a doubleword that contains the value. For example:
         TESTCB NIB=NIB1,DEVCHAR=(*,DEVMASK),AM=VTAM
         ⋮
DEVMASK  DS    D       DEVMASK SET DURING PROGRAM
*                      EXECUTION