compile DESIGN files compile DESIGN testbench compile memory Behavioral model (*.v) compile Netlist file (DESIGN.v) which is the output of synthesis To simulate DESIGN with the SDF file (Standard Delay Format) which you got from synthesis, use this command in modelsim terminal: vsim -L CLOCK65LPLVT -L CORE65LPLVT -sdfmax /{DESIGN_TESTBENCH}/DUT={path to your SDF file} work.{DESIGN_TESTBENCH} ## remember to: # Replace {DESIGN_TESTBENCH} with you testbench name # Replace {path to your SDF file} with the path that your sdf file is located: # For example: /home/piraten/ma1570no/synt/outputs/TopPads.sdf