set_device -fam SmartFusion2
read_edif \
    -file {D:\Mathblock\SF2 DSP Application Notes\IGLOO2_publish_doc\SF2_11.1\Design_files\Extended Adder\Extended_adder_3_input\synthesis\Extended_adder_3_input.edn}
write_vhdl -file {D:\Mathblock\SF2 DSP Application Notes\IGLOO2_publish_doc\SF2_11.1\Design_files\Extended Adder\Extended_adder_3_input\synthesis\Extended_adder_3_input.vhd}
