What do the registers and PSW say? You could have branched into data or into the PSA. Branching into the PSA is often caused by a missing or xero address, for example you had weak externals that were not resolved or some vector/branch table that was not populated. Or you could have overwriten your code with data or some other means generating an attempt to execute an invalid instruction.
Regards, Stephen. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
