In addition to this, Icarus Verilog only offers full support for Verilog. However, it is possible to export waveforms into the open-source GTKWave software to look at the waveforms. This is typically a useful feature as it makes it easier for us to debug our HDL-based designs. One of the biggest drawbacks is that Icarus Verilog doesn’t display waveforms by default. However, there are also some disadvantages to Icarus Verilog. In order to run a basic simulation, only a few simple commands are required. However, there is still a community of developers which maintain Icarus Verilog and update it with new features.Īnother thing that makes Icarus an attractive tool for beginners is its ease of use. As it is an open-source tool, Icarus Verilog can be used for free. There are several reasons why Icarus Verilog is a good choice for beginners. It offers full support for the Verilog-2005 standard as well as limited support for SystemVerilog. Icarus Verilog can be used on Windows, macOS, or Linux-based operating systems. It is even one of the simulators which can be used on the popular EDA playground website. It is one of the most popular open-source Verilog simulators. Icarus Verilog is a fully open-source compiler that includes both a Verilog synthesizer and simulator. This includes a summary of the strengths and weaknesses of each tool to make it simpler for a beginner to select the best HDL simulation tool. In this article, we look at four of the most popular HDL simulators on the market. This choice is further complicated by the fact that there is not a readily available one size fits all solution unless you are willing to pay for a commercial product such as QuestaSim. As a result of this, it can be difficult to know which is the best tool to use. However, there are a number of different simulators on the market, each with its own strengths and weaknesses. For beginners, running simulations can also be helpful in demonstrating how new syntax or concepts work in the HDL they are learning. In fact, being able to run simulations is crucial in understanding how our code behaves. When learning to program FPGAs or ASICs using hardware description languages, such as Verilog or VHDL, being able to simulate code is an important part of the learning process.
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