>You say it's in the load module. Did you violate reentrancy?
Noooo, I never do :-) But seriousy, the data being loaded into R15 comes from the load module's storage and this is accessible. The code then seems to happily branch to the address in R15 (the BASSM instruction), i.e. the content from R15 is seen as the PSW's NSI address. -- Peter Hunkeler ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN