This is the project page for mapping IronPython and IronRuby (and maybe IronPHP) to Tamarin. See Tamarin:IronMonkey:BytecodeMapping for some preliminary mapping of CIL to ABC. Background information Adobe ActionScript Technology Center -- the most useful resource is Adobe ActionScript Virtual Machine 2 (AVM2) Overview (PDF). See AVM2 Overview Errata for possible errata. Standard ECMA-335 -- Common