# iverilog > Preprocesses and compiles Verilog HDL (IEEE-1364) code, into executable programs for simulation. > More information: . - Compile a source file into an executable: `iverilog {{source.v}} -o {{executable}}` - Also display all warnings: `iverilog {{source.v}} -Wall -o {{executable}}` - Compile and run explicitly using the VVP runtime: `iverilog -o {{executable}} -tvvp {{source.v}}` - Compile using Verilog library files from a different path: `iverilog {{source.v}} -o {{executable}} -I{{path/to/library_directory}}` - Preprocess Verilog code without compiling: `iverilog -E {{source.v}}`