Mentor公司的ModelSim是业界最优秀的HDL语言仿真软件，它能提供友好的仿真环境，是业界唯一的单内核支持VHDL和Verilog混合仿真的仿真器。-Mentor' s ModelSim is the industry' s best HDL language simulation software, it can provide a friendly simulation environment, the industry' s only single-kernel support for mixed VHDL and Verilog simulation of the simulator.