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

• Display help:

ghdl --help