From: utzoo!decvax!ucbvax!C70:info-cpm Newsgroups: fa.info-cpm Title: DDT Bug Article-I.D.: ucb.1256 Posted: Thu Jun 3 03:42:52 1982 Received: Fri Jun 4 04:27:29 1982 >From ucivax!csuf!bruce@Ucb-C70 Thu Jun 3 03:42:40 1982 Well, it's not a memory problem. No matter where I had DCON relocate itself, the problem showed up. Just to clarify things, with the following program: start: xra a ; set A to zero, and the Z flag to 1 (see, Ron, ; I DO know what I'm doing!) jz label ; this will NOT jump when single-stepped with ; DDT or DCON. nop nop label: nop Well folks? Any other ideas? Bruce