Honored Contributor
Honored Contributorromaprince, I found it very useful to download dsgn_msim_ae_ver.zip from the following Altera.com website: http://www.altera.com/support/examples/modelsim/exm-timing-verilog-msaltera.html.
If you unzip the folder, you will find a file called multiplier_run_msim_gate_verilog.do (which resides in the /modelsim directory). The *.do file show's the command line of how to compile, load the simulation, and add/view/run wave in the Modelsim-Altera simulator. If you are still receiving a specific error or warning message, please let me the exact steps which lead up to the error/warning. Additionally, please let me know the exact error or warning message and I can try to assist. :)
