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Has anybody started a project dedicated to bytecode analysis for 5.2 yet? It could include:

* A Lua-side table of opcode characters by name (eg "vm.bytes.start='\23'")

Other than that, I don't really know much about the VM other than what I've seen described, so I don't know what functions one would write, but the described table would assist hard functionality prohibition in Lua (eg. a script that wants to disallow external code with loops could do string.find calls for the loop opcodes).