set_global_assignment -name VERILOG_FILE sid8580/sid8580.v
set_global_assignment -name VERILOG_FILE sid8580/sid_voice.v
set_global_assignment -name VERILOG_FILE sid8580/sid_tables.v
set_global_assignment -name VERILOG_FILE sid8580/sid_filters.v
set_global_assignment -name VERILOG_FILE sid8580/sid_envelope.v