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Icarus is great, but I'd still recommend the free to use simulators from the fpga vendors (e.g. xilinx xsim) as they support more of the modern system verilog a
by tails4e 8y ago
Icarus is great, but I'd still recommend the free to use simulators from the fpga vendors (e.g. xilinx xsim) as they support more of the modern system verilog and VHDL language. Restricting yourself to the older subset of verilog icarus supports is going to be frustrating in the long run.
- rvense 8y agoIs modern Verilog not frustrating? I don't know much about it, but you're certainly right that the older stuff can be.
- tails4e 8y agoIt's different for sure. It has a lot of very nice features that make it less easy to shoot yourself in the foot for design. It is more expressive, especially woth multidimensional types and real number modelling, plus a whole host of verification features like constrained random verification, classes, coverpoints, assertions, etc. I have to say I like it, but the learning curve is steeper and you can still code 'foot shooting solutions as it is backward compatible - so better to learn the new, more correct way than to start with the old verilog and then learn the new features.