[virtmach] parrot VM?
Fri, 12 Jul 2002 11:36:29 +0200 (MET DST)
> There was a bit of Q&A posted about Parrot on the use Perl site and one of
> the questions was "register based?". The response indicated that a
> register-based VM is more efficient than a stack-based VM even on x86 (at
> least that is how I read it). The statement didn't make any real attempt to
> justify this. This doesn't really sound right to me and since I'm stuck with
> x86 for the forseeable future, I'd like to know.
This has been discussed several times on comp.compilers and elsewhere,
e.g. in the thread including <firstname.lastname@example.org>.
Lots of arguments have been exchanged, but empirical evidence is
missing (and it's a lot of work, and IMO one would need several
cases to draw general conclusions).
> Are there some other, documented VMs that use registers instead of a stack as
> the primary workspace?
The WAM, the Inferno VM, and the Tao VM come to mind.