rename self to receiver

just because it is a keyword and can’t be used

lib/mom/instruction/slot_load.rb

@@ -21,7 +21,7 @@ module Mom
   #        The first element is either a known type name (Capitalized symbol of the class name) ,
   #        or the symbol :message
   #        And subsequent symbols must be instance variables on the previous type.
-  #        Examples:  [:message , :self] or [:Space : :next_message]
+  #        Examples:  [:message , :receiver] or [:Space : :next_message]
   #
   # @right: depends on the derived Class
   #

lib/mom/instruction/slot_move.rb

@@ -2,8 +2,14 @@ module Mom
 
   #SlotMove is a SlotLoad where the right side is a slot, just like the left.
   class SlotMove < SlotLoad
-    def to_risc(compiler)
 
+    def initialize(left , right)
+      right = SlotDefinition.new(right.shift , right) if right.is_a? Array
+      super(left , right)
+    end
+    
+    def to_risc(context)
+      Risc::Label.new(self,"SlotMove")
     end
   end
 end