DASD()

Returns information about DASD volumes.

DEVTYPE()

Issues the IBM macro DEVTYPE SVC.

DSNENQ()

Returns information about the enqueue status of a data set in predefined stem variables.

LOCATE()

Returns the memory address of a specified item.

MEMORY()

Inspects or alters memory.

RDJFCB()

Retrieves the job file control block (JFCB) for a specified ddname.

SECURITY()

Interfaces with the system security software.

SYSVAL()

Returns system values.