Example: execute form (reentrant)

In this example, the execute form of MODCB is used to modify the address of the access method control block and MACRF codes in the parameter list created by the remote-list form of MODCB in the previous example. 
MODCB  ACB=MYACB,MACRF=(ADR,SEQ,OUT),MF=(E,(3))

The parameter list pointed to by register 3 is changed so that the ACB and MACRF parameter values in the execute form override those in the list form. The access method control block, MYACB, is then modified to MACRF=(ADR,SEQ,OUT).

The access method control block at ANYACB is not changed by either of these examples.

Parent topic: Examples of generate, list, and execute forms