renaming, making space for extra layer

lib/neumann/values.rb

@@ -0,0 +1,52 @@
+require_relative "code"
+require_relative "register_reference"
+
+module Vm
+  
+  # Values represent the information as it is processed. Different subclasses for different types, 
+  # each type with different operations.
+  # The oprerations on values is what makes a machine do things. Operations are captured as 
+  # subclasses of Instruction and saved to Blocks
+  
+  # Values are a way to reason about (create/validate) instructions. 
+  
+  # Word Values are what fits in a register. Derived classes
+  # Float, Reference , Integer(s) must fit the same registers
+  
+  # just a base class for data. not sure how this will be usefull (may just have read too much llvm)
+  class Value 
+    def class_for clazz
+      RegisterMachine.instance.class_for(clazz)
+    end
+  end
+
+  # Just a nice way to write branches
+  # Comparisons produce them, and branches take them as argument.
+  class BranchCondition < Value
+
+    def initialize operator
+      @operator = operator
+    end
+    attr_accessor :operator
+    #needed to check the opposite, ie not true
+    def not_operator
+      case @operator
+      when :le
+        :gt
+      when :gt
+        :le
+      when :lt
+        :ge
+      when :eq
+        :ne
+      else
+        raise "no implemented #{@operator}"
+      end
+    end
+  end
+end
+require_relative "values/constants"
+require_relative "values/word"
+require_relative "values/integer"
+require_relative "values/reference"
+require_relative "values/mystery"