Registers on Exit

There is no requirement to return any values in registers from the exit routines, so it is not necessary to restore any registers on exit from the exit routine.

There is a requirement to return a return and reason code. A default of 4 ('no vote') is primed in the parameter list on entry to the exit routine and need not be changed if not appropriate. If updating the return and reason codes is appropriate the fields to be changed are:

INXRC, which contains the exit routine return code
INXRSN, which contains the exit routine reason code