If the program is in AR mode, issue the SYSSTATE ASCENV=AR macro before IXCARM. SYSSTATE ASCENV=AR tells the system to generate code appropriate for AR mode.

The IXCYARAA mapping macro provides the format of the area pointed to by the ANSAREA parameter. If you intend to use that area, include the IXCYARAA mapping macro in your program.

The areas specified by STARTTXT, EVENTEXITPL, and ANSAREA must be in the primary address space or be in an address/data space that is addressable through a public entry in the caller's dispatchable unit access list (DU-AL).

Include the IXCYARM mapping macro in your program. This macro provides a list of equate symbols for users of IXCARM.

Initialize the area that contains the event exit parameter list (EVENTEXITPL) before issuing the IXCARM macro with the REQUEST=REGISTER parameter.