Learning about VMs

There seem to always be a few people thinking about working on Slate's
VM, but no one with the time and interest has an understanding of VM
implementations.  A recent thread in the Strongtalk group provided
some information on what a hacker should know before messing with the
Strongtalk VM, perhaps it'll help those looking for a starting point.

Here's a link to the thread:

http://groups.google.com/group/strongtalk-general/browse_thread/thread/83bda45b670b5a5b/2e2b63b0bf121f7a#2e2b63b0bf121f7a

>From the thread, here are two recommended sources for learning more about VMs:

Syllabus for a course on OOVMs that was taught by the lead engineer of
the Strongtalk VM:
http://www.daimi.au.dk/~ups/OOVM/

High-level description of Squeak VM:
http://www.rowledge.org/tim/squeak/OE-Tour.html