diff --git a/lib/register/instructions/get_byte.rb b/lib/register/instructions/get_byte.rb
index be215567..ef446762 100644
--- a/lib/register/instructions/get_byte.rb
+++ b/lib/register/instructions/get_byte.rb
@@ -32,9 +32,9 @@ module Register
   # Produce a GetByte instruction.
   # from and to are translated (from symbol to register if neccessary)
   # but index is left as is.
-  def self.get_byte source , array , index , to
-    from = resolve_to_register from
-    to = resolve_to_register to
-    GetByte.new( source , array , index , to)
-  end
+  # def self.get_byte source , array , index , to
+  #   from = resolve_to_register from
+  #   to = resolve_to_register to
+  #   GetByte.new( source , array , index , to)
+  # end
 end
diff --git a/lib/register/instructions/set_byte.rb b/lib/register/instructions/set_byte.rb
index 936dae54..81641851 100644
--- a/lib/register/instructions/set_byte.rb
+++ b/lib/register/instructions/set_byte.rb
@@ -29,11 +29,11 @@ module Register
   # Produce a SetByte instruction.
   # from and to are translated (from symbol to register if neccessary)
   # but index is left as is.
-  def self.set_byte source , from , to , index
-    from = resolve_to_register from
-    index = resolve_index( to , index)
-    to = resolve_to_register to
-    SetByte.new( source, from , to , index)
-  end
+  # def self.set_byte source , from , to , index
+  #   from = resolve_to_register from
+  #   index = resolve_index( to , index)
+  #   to = resolve_to_register to
+  #   SetByte.new( source, from , to , index)
+  # end
 
 end