title: Concise description of the Lua vm?
body: <p>I've skimmed Programming in Lua, I've looked at the Lua Reference.</p>
  
  <p>However, they both tells me <em>this function does this</em>, but not <em>how</em>.</p>
  
  <p>When reading SICP, I got this feeling of: "ah, here's the computational model underlying scheme"; I'm trying to get the same sense concerning Lua -- i.e. a concise description of it's vm, a "how" rather than a "what".</p>
  
  <p>Does anyone know of a good document (besides the C source) describing this?</p>