Characteristics of the DFSMSdss Dynamic Exit, ADRDYEXT

All DFSMSdss exit routines connected to ADRDYEXT_EXIT1 are called:

In 31-bit addressing mode
With authorized program facility (APF) authorization (if DFSMSdss is APF-authorized)
In key 8 problem state.

They also must:

Observe standard register save and restore functions
Be written in reentrant code
Restore the execution environment (31-bit addressing mode, key 8, problem state) before returning to DFSMSdss.

The parameter list and save area passed to the exit routines resides in fetch protected, key 0 storage.