The parameter list that the system passes to the event exit routine is mapped by the IXLYEEPL mapping macro. GPR 1 contains the address of a fullword that points to IXLYEEPL. The parameter list is addressable from the primary address space in which the event exit routine runs, and includes the following:

• Information about the connection whose event exit gets control
• Event code.
• Event sequence number.
• Event exit return codes set by the user during exit processing. See Return Specifications.
• Console ID and command-and-response token (CART) for operator-initiated events.
• Information about the connection that is the subject of the event.
• Information about the specific event.

When control returns to the program from the event exit, the connected user can no longer access IXLYEEPL. If the user intends to respond to the event using IXLEERSP, the user must save the following IXLYEEPL information to provide to the IXLEERSP macro:

• Event type
• Event sequence number
• CONTOKEN for the connection that is the subject of an existing connection event
• SUBJCONTOKEN for the Disconnected or Failed Connection event and the Rebuild Connect Failure event.