Download and install this:
http://bleyer.org/icarus/iverilog-v11-20190809-x64_setup.exe
(This comes with both IcarusVerilog and GTKWave.)
Download and install this:
http://bleyer.org/icarus/iverilog-v11-20190809-x64_setup.exe
(This comes with both IcarusVerilog and GTKWave.)