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Separate Messages from the NEWS Exit

You may require the exit to communicate with operators to notify them of particular conditions that have been detected.

You can use the exit to generate message text and place its address in a fullword contained in the area addressed by the second fullword of the initialization call parameter list.

A message can be generated following any call to the exit, and its address placed in this fullword. The message must be formatted as follows:

Byte

Description

00:01

Length of message text (excluding these 2 bytes)

02:nn

Message text.

The maximum message length is 130 bytes. Excess length is ignored and the message truncated.