The paucity of detail makes answering your inquiry a matter of inductive supposition. Maybe you should post additional information such as: Source code?Assembly listing?ABEND code?SysLog?
Keven On Thu, Nov 21, 2019 at 9:26 PM -0600, "Joe Reichman" <reichman...@gmail.com> wrote: Hi I have a amode 64 rmode 31 program I would like to do I/O So I have to have the DCB below 16mb So I have LOAD a module amode 64 rmode 24 After loading I turn the 1 bit to the right off now I have a clean half address when I BASR to it bombs and the PSW has the one bit on A funny thing under TEST making a breaking point at the basr it doesn't happen