In certain situations when an assembly cannot be completed, High Level Assembler requests its internal abnormal termination routine to produce a specially formatted dump. Diagnostic information in the dump can be useful if an APAR is needed. The types of data that can be extracted from the dump include:

• Assembly abnormal-termination messages
• Register contents when the abnormal termination was requested
• The assembler common-storage area
• The statement that was being processed when the abnormal termination was requested