Many years ago IEFBR14 was moved from LINKLIB to LPALIB. You cannot modify modules in LPA, which is what AT command does. You would have to copy IEFBR14 to you own load library and test from there.
Sam Bass > From: Binyamin Dissen <bdis...@dissensoftware.com> > To: IBM-MAIN@bama.ua.edu > Date: 05/24/2011 11:38 AM > Subject: Problems with TSO TEST > Sent by: IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> > > > > TEST 'SYS1.LINKLIB(IEFBR14)' > TEST > L +0 > +0 1BFF07FE > TEST > L +0 I > IKJ57245I INVALID INSTRUCTION CODE AT +0 > TEST > AT +0 > IKJ57306I NO BREAKPOINT ESTABLISHED AT +0 + > IKJ57306I INVALID OP CODE > TEST > END > > Any ideas? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html