add lib and interpreter skeleton

config.ru

@@ -9,6 +9,7 @@ require "react/source"
 
 run Opal::Server.new {|s|
   s.append_path 'app'
+  s.append_path 'lib'
   s.append_path File.dirname(::React::Source.bundled_path_for("react-with-addons.js"))
   s.main = 'debugger'
   s.debug = true

lib/interpreter.rb

@@ -0,0 +1,10 @@
+
+class Interpreter
+
+  attr_accessor :instruction
+  attr_accessor :registers
+
+  def initialize
+    @registers = (0...12).collect{|i| "r#{i}"}
+  end
+end