PL/I · Message ID
What does CEE3201S: Operation Exception (System Completion Code 0C1) mean in PL/I?
The CPU tried to execute an operation code it does not recognize. This almost always means control branched into data rather than instructions, or the load module itself is corrupted — for example by an overlay from a wild pointer or a truncated FETCH.
The CPU tried to execute an operation code it does not recognize. This almost always means control branched into data rather than instructions, or the load module itself is corrupted — for example by an overlay from a wild pointer or a truncated FETCH.
Get a CEEDUMP and compare the PSW's instruction address against the compile listing and load module map. Treat this as storage corruption from a bad pointer first, and also confirm the load module wasn't truncated or corrupted during the bind/link-edit step or a file transfer.