General Description: How do you simulate a bus to count up or down? If you have an eight bit bus, how to make it go 00 01 02 etc.
The easiest way to do this is with a simulation script. Create a script from the simulator, and choose to use the Wizard. Add your buses as vectors, naming them anything you wish. Then, under the Stimulated and Watched Signals Screen, click Browse, and click beside each of the individual signals in the bus you want to stimulate. Then, one by one, click on the the bit, then under Stimulator Type choose Binary Counter, and in the Value field type the index number of the signal in the bus. The relevant portion should look something like this: