Unlimited free access to virtual port models of all the virtual processor models in the firm's model library when a user purchases CoMET 2.0, the systems level engineering toolset has been made available through the company's CoMET-VP Model Program. Under terms of the program, users are provided with access to the firm's fully executable virtual prototypes, allowing them to model, verify, and debug complete hardware/software systems in systems-on-chip, ASIC, and pc board designs. Once the user has chosen a particular processor, they receive the full, bus-functional model of the processor, which includes the bus function information.