Technical data

Debugging a VHDL design
ModelSim EE/SE Tutorial 3-37
21 In the Variables window, expand test_patterns and test_pattern(6) again. Then
highlight the .sum record by clicking on the variable name (not the box before the
name) and then use the Edit > Change menu selection.
22 Select the last four bits in the value field 1000 by dragging the pointer across them.
Then replace them with 0111, and click Change. (Note that this is a temporary edit,
you must use your text editor to permanently change the source code.)
23 Select the Run button from the Main toolbar.
(Main MENU: Run > Run 1000 ns) (PROMPT: run)
At this point, the simulation will run without errors.
Next you will learn how to change the new-line triggering for the List window.
By default, a new line is displayed in the List window for each transition of a listed
signal. The following steps will change the triggering so the values are listed every
100 ns.
24 In the List window, make this menu selection: Prop > Display Props.