Specifies a bit mask indicating whether GT.M enables or disables BREAK identification messages for BREAKs encountered in various circumstances. A BREAK command always causes GT.M to enter Direct Mode; the BREAK message mask determines whether GT.M will display a message describing the source of the BREAK.

This factor can be modified at run-time by using the VIEW command with an argument having "BREAKMSG":mask values.

Add together any combination of the following numbers to obtain the value assigned to the BREAKMSG mask. Each number determines whether a message will be displayed when a BREAK is encountered in the corresponding situation.

1 - in routines

2 - in ZBREAK actions

4 - in EXCEPTION= deviceparameter arguments

8 - in ZSTEP actions

By default, the mask has the value of 15, which enables the messages for all conditions.