anchor.diff:  		     t_non_neg_fixnum();
   		   ['trace_control_word'] ->
   		     t_integer();
  +                   ['update_cpu_info'] ->
  +                     t_sup([t_atom('changed'), t_atom('unchanged')]);
   		   ['version'] ->
   		     t_string();
   		   ['wordsize'] ->
  
positive.code: t_system_profile_return() ->
    t_sup(t_atom('undefined'),
  	t_tuple([t_sup(t_pid(), t_port()), t_system_profile_options()])).
  
  %% =====================================================================
  %% These are used for the built-in functions of 'ets'
  
negative.code: 		     t_non_neg_fixnum();
  		   ['min_heap_size'] ->
  		     t_non_neg_fixnum();
  		   ['min_bin_vheap_size'] ->
  		     t_non_neg_fixnum();
  		   ['multi_scheduling'] ->
  		     t_system_multi_scheduling();
  		   ['schedulers_online'] ->
  