analyze -f vhdl example.vhd
elaborate example
compile -map_effort low 

change_names -rule vhdl
vhdlout_architecture_name = "SYN"
vhdlout_use_packages = {"IEEE.std_logic_1164", "IEEE.std_logic_arith.all", "IEEE.std_logic_textio.all", "lsi_10k.COMPONENTS.all"}
write -f db -hierarchy -output "example_gate.db"
write -f vhdl -hierarchy -output "example_gate.vhd"

exit