You have to know the target address. Then SLIP SET,SB,range=(target-start,target-end) can be used to set a slip trap which will hit when a branch is taken to an address in the range target-start/target-end..
With the original PER architecture, successful branch wasn't a "branch-to", it was a "branch-from". I suspect SLIP still supports the syntax of SLIP SET,SBT to indicate "successful branch to" more explicitly. I believe support for "branch-from" was deprecated. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html