diff --git a/lib/register/enter_implementation.rb b/lib/register/enter_implementation.rb
index f0663a02..222f55d2 100644
--- a/lib/register/enter_implementation.rb
+++ b/lib/register/enter_implementation.rb
@@ -5,7 +5,12 @@ module Register
       block.codes.dup.each do |code|
         next unless code.is_a? Virtual::MethodEnter
         # save return register and create a new frame
-        block.replace(code , [] )
+        to = RegisterReference.new(:r0)  # message base
+        tmp = RegisterReference.new(:r5) # tmp
+        pc = RegisterReference.new(:pc)
+        move1 = RegisterMachine.instance.ldr( tmp , pc )
+        move2 = RegisterMachine.instance.ldr( tmp , to , 3 ) #TODO 3 == return reg, needs constant / layout
+        block.replace(code , [move1,move2] )
       end
     end
   end