trying to get register view to update

app/register_view.rb

@@ -10,15 +10,24 @@ class RegisterView
 
   before_mount do
     interpreter.register_event(:register_changed,  self)
+    interpreter.register_event(:object_changed,  self)
     register_changed( register , nil , interpreter.registers[register])
   end
 
   def register_changed reg , old , value
+    reg = reg.symbol unless reg.is_a? Symbol
     return unless reg == register
     objects_id! value
     calc_fields
   end
 
+  def object_changed reg
+    reg = reg.symbol unless reg.is_a? Symbol
+    return unless reg == register
+    puts "Object changed in #{reg}"
+    calc_fields
+  end
+
   def calc_fields
     #puts "My id #{objects_id} , #{objects_id.class}"
     object = Virtual.machine.objects[objects_id]
@@ -49,6 +58,7 @@ class RegisterView
   end
 
   def marker var
+    return "W" if var.is_a? String
     var.class.name.split("::").last[0]
   end
 end

app/styles.scss

@@ -10,7 +10,7 @@ $susy: (
 .classes { @include span(3); }
 
 .file-view {
-  @include span(4); 
+  @include span(4);
   margin: span(1);
 }
 
@@ -31,7 +31,8 @@ $susy: (
 }
 
 .register-view {
-  @include gallery(2);
+  @include gallery(3);
+  margin-top: 10px;
 }
 
 .bright {

lib/interpreter.rb

@@ -26,8 +26,8 @@ class Interpreter
     @state = "runnnig"
     @stdout = ""
     @registers = {}
-    (0...12).each do |r|
-      set_register "r#{r}".to_sym , "undefined"
+    (0...16).each do |r|
+      set_register "r#{r}".to_sym , "r#{r}:unknown"
     end
   end
 
@@ -114,6 +114,7 @@ class Interpreter
     value = object_for( @instruction.register )
     object = object_for( @instruction.array )
     object.internal_object_set( @instruction.index , value )
+    trigger(:object_changed, @instruction.register )
     true
   end
 
@@ -133,6 +134,7 @@ class Interpreter
   def execute_SaveReturn
     object = object_for @instruction.register
     raise "save return has nothing to save" unless @link
+    trigger(:object_changed, @instruction.register )
     object.internal_object_set @instruction.index , @link
     true
   end