gtpi1m4u | System Installation Support Reference |
The transaction analysis exit routine (CMVU) is activated by the SNA communication source program (CITT) when the system message recovery option is included in the system (the value of the NSRTE parameter of the SIP SNANET macro is greater than 0) and the SNA communication transaction analysis option is requested (by the ZNKEY TRANA-YES command).
You should modify the segment to perform the desired transaction analysis function.
Input
Programming Considerations
Registers R1-R4 are saved by CITT in the ECB, and are restored when CMVU returns control to CITT.