diff --git a/lib/arm/instructions/move_instruction.rb b/lib/arm/instructions/move_instruction.rb
index f4880dc2..2323a508 100644
--- a/lib/arm/instructions/move_instruction.rb
+++ b/lib/arm/instructions/move_instruction.rb
@@ -5,6 +5,7 @@ module Arm
     def initialize to , from , options = {}
       super(options)
       @to = to
+      raise "old code, fix this to use LoadConstant" if from.is_a? Virtual::ObjectConstant
       @from = from.is_a?(Fixnum) ? Virtual::IntegerConstant.new(from) : from
       raise "move must have from set #{inspect}" unless from
       @attributes[:update_status] = 0 if @attributes[:update_status] == nil
diff --git a/lib/virtual/constants.rb b/lib/virtual/constants.rb
index 892f4f76..e744db0c 100644
--- a/lib/virtual/constants.rb
+++ b/lib/virtual/constants.rb
@@ -45,6 +45,7 @@ module Virtual
     attr_reader :string
 
     def result= value
+      raise "called"
       class_for(MoveInstruction).new(value , self , :opcode => :mov)
     end
     def clazz