This topic contains Product-sensitive Programming
Interface and Associated Guidance Information.
The EYU9XESV security routine is loaded during CMAS initialization. EYU9XESV
can reside in the CMAS STEPLIB, the MVS™ linklist, or the LPA library. If
EYU9XESV cannot be loaded, all API connect requests that require its use
are automatically rejected.
EYU9XESV receives control in the following processing environment:
- Supervisor state
- PSW key 0
- Primary address space control (ASC) mode
- Non-cross-memory mode
- 31-bit addressing mode.
On entry to the security exit, the general registers are set as follows:
- Register 0 is undefined
- Register 1 contains the address of the EYUBXESV parameter block
- Registers 2 through 12 are undefined
- Register 13 contains the address of a 72-byte save area
- Register 14 contains the return address
- Register 15 contains the address of the exit entry point.
Access registers AR0 through AR15 contain zeroes (0).