Thanks Mahmud! I'm not really interested in re-implementing another language at the moment (though I probably will in the future), but it's really good to read

Thanks Mahmud! I'm not really interested in re-implementing another language at the moment (though I probably will in the future), but it's really good to read the documentation/opcodes for other VMs. Others I've had a look at so far are YARV, Parrot and Lua. I definitely need to check out the docs for the JVM at some point too...