5.1 3rd Party Flows: Using Riviera-PRO Simulator for Xilinx Vivado Xilinx Vivado allows the ability to utilize different simulators besides their own. Because of that, the capabilities of Riviera-PRO's fast and comprehensive simulator are easily accessible when debugging and simulating Vivado projects. This video provides a general overview of how to simulate and debug Vivado projects using Riviera-PRO's simulator environment.