Appendix A

ModelSim and QuickHDL

ModelSim is Mentor's simulator for behavioral VHDL, Verilog, or VHDL-based and Verilog-based gate-level designs composed of SIMPRIM elements. QuickHDL previously provided this same functionality.

The design flows in this user guide are based on ModelSim. If you have not upgraded to ModelSim and are still using QuickHDL, you can substitute QuickHDL into your design flows as described below.

ModelSim and QuickHDL have the same functionality, but the commands you use to control these tools are different. The Mentor Design Manager contains icons for QHDL as well as ModelSim so you can access either tool depending on what you have installed.

The following table provides a mapping between ModelSim and QuickHDL commands. In the procedures in this manual that use ModelSim commands, you can substitute QuickHDL by substituting the corresponding QuickHDL commands in those procedures.