tldr/pages/common/ghdl.md

ghdl

Open-source simulator for the VHDL language. More information: http://ghdl.free.fr.

• 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