ghdl — Open-source simulator for the VHDL language. More information: <https://ghdl.github.io/ghdl/>.

Analyze a VHDL source file and produce an object file

ghdl -a {{filename.vhdl}}

Elaborate a design (where `design` is the name of a configuration unit, entity unit, or architecture unit)

ghdl -e {{design}}

Run an elaborated design

ghdl -r {{design}}

Run an elaborated design and dump output to a waveform file

ghdl -r {{design}} --wave={{output.ghw}}

Check the syntax of a VHDL source file

ghdl -s {{filename.vhdl}}