High Level Assembler messages

High Level Assembler produces the following types of messages:

Assembly error-diagnostic messages.
Assembly abnormal-termination messages.
ASMAHL command-error messages (CMS).

The following section describes the format and placement of messages issued by the assembler. Assembly error diagnostic messages, Abnormal assembly termination messages, and ASMAHL Command Error Messages (CMS), list and describe each message.

Note: If you use the FLAG(severity code) assembler option, only error diagnostic messages with a severity of severity code or higher appear on the listing.