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 the help page:
  ghdl --help