Enabling and Disabling Events

You can disable and enable events. When you disable an event, Prism keeps it in the event list, but it no longer affects execution. You can subsequently enable it when you once again want it to affect execution. This can be more convenient than deleting events and then redefining them.

• From the Event Table - The Event Table has an Enabled field. By default, there is a y in this field, meaning that the event being defined or edited is enabled. Click on the field and change the y to an n to disable the event. The event remains in the event list, but is labeled (disabled). You can then edit the event as described in " Editing an Existing Event" and change the field back to a y to enable the event once again.

• From the command line - Issue the disable command to disable an event. Use the event's ID as the argument. You can obtain this ID from the event list in the Event Table, or by issuing the show events command.

For example, this sequence of commands displays the event list, then disables an event, then re-displays the event list:

(prism) show events(1) trace
(2) when stopped { print board }
(prism) disable 1
event 1 disabled
(prism) show events
(1) trace (disabled)
(2) when stopped { print board }

Issue the enable command to enable an event that has been disabled. Specify the ID of the disabled event as the argument.