-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Karthik Parashar wrote: > Hi again! > > I want to know the following about the VVP simulator > implementation. > > The Question: > What is the difference between a functor and an event > is in terms of the simulation simulation technique?
I don't know (or don't remember) which version you are using; the v0.8 branch or the devel main trunk. I'll assume the main trunk. The edge event nodes are functors. All they do is remember what the value used to be at its input, note the new value, and detect the edge. The any_edge functor is similar. The named event is also a functor, but it pays no heed to the value that arrives. It detects an event on any input at all. The input to a named event is normally from a %set instruction in a thread. The event_or functor is most like a named event, in that any input causes the event to trigger. It also sends an output that is typically used to nest event/or functors. All event functors also carry a list of threads that are waiting on the event. When the event is triggered, whatever type the event is, it causes all the threads in the list to be awakened and scheduled for execution. - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEAfcorPt1Sc2b3ikRAn9aAJ9Ql0Jskdi3zXd6X5jF2kbgSDw3LwCfbuuq MKFD3iWQQjQKqAi1Y+lxZds= =HfY1 -----END PGP SIGNATURE-----
