Displaying hardware-software co-simulation.
A Scope Window shot showing an example of how analog, digital and software is simulated together. The magenta "signals" are not properly signals but the software trace. Then, cursors (white vertical lines) can be used to measure times and cross-reference this point to the code itself.
Complete systems: analog + digital + software can be defined with VMLAB. A virtual prototype offers you a complete view of your system prior to build it in reality, by performing a true hardware-software co-verification.
The language used is a SPICE-like one, very popular among the electronic design community.