User guide

C-22
Simulation Options
General Options
Viewing the Compile-Time Options Used to Create the
Executable
-E program
Starts the program that displays the compile-time options that
were on the vcs command line when you created the simv (or
simv.exe) executable file. For example:
simv -E echo
simv -E echo > simvE.log
You cannot use any other runtime options with the -E option.
Stopping Simulation When the Executable Starts
-s
Stops simulation just as it begins, and enters interactive mode.
Use with the +cli+number option.
Recording Where ACC Capabilities are Used
+vcs+learn+pli
ACC capabilities enable debugging operations but they have a
performance cost so you only want to enable them where you
need them. This option keeps track of where you use them for
debugging operations so that you can recompile your design, and
in the next simulation, enable them only where you need them.
When you use this option VCS writes the pli_learn.tab secondary
PLI table file. You input this file with the +applylearn
compile-time option when you recompile your design.