You are now in the directory for the port "emulators/sim" (package name "sim-2.3").
This is the one-line description for this port:
PDP-8, PDP-11, PDP-1, other 18b PDP, Nova, and IBM 1401 simulators
Please read the file "pkg/DESCR" for a longer description.
Go to the top of the ports tree for a summary on how to use the ports collection.