Run VCS simulation in ucli mode

ucli mode is same as -do mode in questa simulation. commands used while running simulation can be. Commands that we are going to discuss below should be stored in .tcl file and run while simulation.

command to be executed after simv run:
 run 

Run simulation VCS simulation with dump:
vcs.fsdb dump file is created. $fsdbDumpvars & +all indicates it will dump all hierarchies. There are many features that ucli mode supports.

call {$fsdbDumpfile ("vcs.fsdb")};
call {$fsdbDumpvars ("+all")};
run 
exit

Run simulation for specific simulation time, following command will run simulation for 100 nano second:
run 100ns 
user can give ps - pico second, us - micro second , ms - milli second 

Run for signal or event:
  - run simulation till first posedge of the ack signal is detected.
run -posdege top.m1.ack

same way we can wait for negedge or change in ack signal.