![]() Additionally, limited-functionality editions of the Aldec and Modelsim simulator are downloadable free of charge, from their respective OEM partners (Actel, Altera, Lattice Semiconductor, Xilinx, etc.) For those desiring open-source software, there is Icarus Verilog, among others.īeyond the desktop level, enterprise-level simulators offer faster simulation runtime, more robust support for mixed-language ( VHDL and Verilog) simulation, and most importantly, are validated for timing-accurate (SDF-annotated) gate-level simulation. The suites bundle the simulator engine with a complete development environment: text editor, waveform viewer, and RTL-level browser. For desktop/personal use, Aldec, Mentor, LogicSim, SynaptiCAD, and others offer reasonably priced (<$5000 USD) tool-suites for the Windows 2000/XP platform. Today, Verilog simulators are available from many vendors, at all price points. Verilog simulation software has come a long way since its early origin as a single proprietary product offered by one company. Verilog simulators are software packages that emulate the Verilog hardware description language.
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