Yes they are, but I don't have the coding skills or time to develop a JIT for it :) Sampsa On 28 Nov 2010, at 22:59, hvlems at zonnet.nl wrote: The simh sources are freely available, aren't they? Verzonden vanaf mijn draadloze BlackBerry -toestel -----Original Message----- From: Sampsa Laine <sampsa at mac.com> Sender: owner-hecnet at Update.UU.SE Date: Sun, 28 Nov 2010 22:20:32 To: <hecnet at Update.UU.SE> Reply-To: hecnet at Update.UU.SESubject: Re: [HECnet] SIMH VAX memory weirdness If I had the code-fu, I'd love to write a JIT for SIMH, imagine the performance we could get out of it with that... Sampsa On 28 Nov 2010, at 22:18, Mark Wickens wrote: Still doesn't run as fast as a 3 Ghz NVAX processor. Oh wait, that was only in my dreams.... (did some rough-as comparisons a while back and came to the conclusion that Intel Core Duo and VAX processors were roughly the same performance Hz to Hz). Mark.