Registers at exit

GPR
Contents
0-1
The MIPR does not have to place any information into these registers, and does not have to restore their contents to what they were when the MIPR received control.
2-13
The MIPR must restore the register contents to what they were when the MIPR received control.
14
Return address to the CSVINFO service
15
Return code from the MIPR
Note: The CSVINFO service continues processing until either of the following occurs:

When CSVINFO receives a non-zero return code, it returns control to the program that invoked the CSVINFO macro.