ModelSim SE User's Manual - Electrical and Computer Engineering

UM-264 9 - Waveform analysis
Combining objects/creating busses
Example
ModelSim SE User’s Manual
You can combine signals in the Wave or List window into busses. A bus is a collection of
signals concatenated in a specific order to create a new virtual signal with a specific value.
To combine signals into a bus, use one of the following methods:
Select two or more signals in the Wave or List window and then choose Tools > Combine
Signals from the menu bar.
Use the virtual signal command (CR-351) at the Main window command prompt.
The Combine Signals dialog in the List and Wave windows differ slightly. See "Combine
Selected Signals dialog" (GR-161) for the List window and "Combine Selected Signals
dialog" (GR-253) for the Wave window.
In the illustration below, three signals have been combined to form a new bus called "bus".
Note that the component signals are listed in the order in which they were selected in the
Wave window. Also note that the value of the bus is made up of the values of its component
signals, arranged in a specific order.