Diagnosing assembly errors

The diagnostic facilities for High Level Assembler include:

Diagnostic messages for assembly errors.
A macro trace and dump facility (MHELP).
Messages and dumps issued by the assembler if it ends abnormally.
Diagnostic or explanatory messages issued by the source program or by macro definitions (MNOTEs).

This chapter provides an overview of these facilities. The assembly error diagnostic messages and abnormal assembly termination messages are described in detail in High Level Assembler messages.