Mike Schwab wrote: >PIC is Program Interuption Code. Printed page 72 of >GA22-7000-4_370_Principles_Of_Operation_Sep75.pdf shows this to be page >translation error. That means the logical page references is not in CORE >(RAM). The operating system need to read in the logical memory from paging >files and retry the instruction.
Thanks. So I see that too in 'z/Architecture Principles of Operation' PDF bookie SA22-7832-11 (filename as downloaded from Big Blue is dz9zr011.pdf) One snippet on page 6-32 (page 458 of 1902 pages) says: "The page-translation exception is indicated by a program-interruption code of 0011 hex". I hope I quote the right snippet. I am wondering of the OP's 'page-invalid bit' is indeed one. But still, if the OP wants full and free help, he should post what is needed. Dumps, Abend code + return/reason codes, full messages, etc. plus code snippets if needed. Groete / Greetings Elardus Engelbrecht ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN