Structure of the HotSpot Interpreter

[Julian Waters]

Hi all,

I've recently been trying to learn more about HotSpot and studying its
internals, but the structure of the Interpreter seems to elude me
still. I'm aware that HotSpot doesn't use a traditional switch case
(Well, at least not usually, looking at you Zero Port), but how it
functions is more or less still a black box to me. What kind of
dispatch mechanism does it use, for instance? Is it Direct Threaded,
Indirect Threaded, Token Threaded, or something else entirely? Is
there somewhere I can learn about how everything connects together?
I've tried reading the HotSpot documentation online but there doesn't
seem to be an in-depth explanation in them for how it all fits
together, I'd greatly appreciate if someone points me in the right
direction

best regards,
Julian