The contents of the registers on exit are:

R0-R13

Irrelevant

R14

Return address

R15

Return code

Use the return code in register 15 to specify how JES3 is to proceed as follows:

0

The output should be deleted.

4

Continue normal processing.

8

Continue normal processing. If the exit was called by the output service driver, allow IATUX19 to process the output.

12

Dummy exit; the exit will not be called again until the JES3 subsystem is restarted.