code: function( filename, autorun ) {
  		var self = this;
  
  		utils.readFile( filename, function( data ) {
  			self.initCartridge( data );
  
  			if ( typeof autorun === "function" ) {
  				autorun();
  			} else if ( autorun === true ) {
  				self.run();
  			}
  		});
  	}
docs: Load a ROM and optionally run it.
  @param {string} filename - Path of ROM to run.
  @param autorun - If true, run ROM when loaded. If a function, call that function.