Comment You probably know this but the VAX isn't dead. (Score 2) 74
There are more VAX machines around than you probably expect. We sell VAX and Alpha emulators and support a lot of customers on those or real hardware. We have *many* folks on [Open]VMS 7.x and even more on 8.x. Even a handful that still run Tru64 UNIX (4.0G also called "Digital Unix" and 5.1B).
There's SIMH if you want something for free, there's AVTware's vtVAX (and vtAlpha), there's MSI's FreeAXP and Avanti alpha emulators, there's also Charon-AXP emulator from horrible horrible Stromasys. I also think Qemu emulates the alpha pretty effectively but doesn't have all the ROMs you need to run VMS or Tru64. There are a couple of projects to implement VAXen in FPGA that I'm looking forward to as well.
There's SIMH if you want something for free, there's AVTware's vtVAX (and vtAlpha), there's MSI's FreeAXP and Avanti alpha emulators, there's also Charon-AXP emulator from horrible horrible Stromasys. I also think Qemu emulates the alpha pretty effectively but doesn't have all the ROMs you need to run VMS or Tru64. There are a couple of projects to implement VAXen in FPGA that I'm looking forward to as well.