anchor.diff:  		this.separator();
   
   		/// Tests some [dataStack] manipulation calling [Word]s from the [Dictionary] 
  -		t.wordsMap["OVER"].code(); print("OVER >\t\t${this.vm.dataStack}");
  -		t.wordsMap["?DUP"].code(); print("?DUP >\t\t${this.vm.dataStack}");
  +		t.wordsMap["OVER"].code(); printD("OVER >\t\t${this.vm.dataStack}");
  +		t.wordsMap["?DUP"].code(); printD("?DUP >\t\t${this.vm.dataStack}");
   		
   
   
  
positive.code: 
  	final VirtualMachine vm;
  
  	TempTests(VirtualMachine this.vm) {
  	}
  
  	header(String str, e, name) {
  		window.console.info("\n>>>>>>TEST>>>>>> $str");
  
  		print('"$name" $e');
  	}
  
  	footer(String str) {
  		print("<<<<<<<<<<<<<<<< $str");
  	}
  
  	separator() {
  		print("----------------");
  	}
  	
  
  	/// Tests a [Stack] instance
  	TestStack(Stack t, String name) {
  		this.header("stack", t, name);
  		print("length: ${t.data.length} cells, ${t.data.lengthInBytes} bytes");
  		this.separator();
  
  		t.Push(82); print("Push(82) >\t${t}");
  		t.Push(25); print("Push(25) >\t${t}");
  		t.Push(11); print("Push(11) >\t${t}");
  		t.Push(3);  print("Push(11) >\t${t}");
  
  		t.Rot(); print("Rot() >\t\t${t}");
  		t.RotCC(); print("Rotcc() >\t${t}");
  
  		t.Over(); print("Over() >\t${t}");
  		print("Pop() > ${t.Pop()}\t${t}");
  		t.Swap(); print("Swap() >\t${t}");
  		t.Dup(); print("Dup() >\t\t${t}");
  
  		t.Pick(4); print("Pick(4) >\t${t}");
  
  		//t.Roll(4); print("Roll(4) >\t${t)}");
  
  		t.Nip(); print("Nip() >\t\t${t}");
  		print("Pop() > ${t.Pop()}\t${t}");
  		t.Tuck(); print("Tuck() >\t${t}");
  
  		this.footer("/stack");
  	}
  
negative.code: 	TestDictionary(Dictionary t, String name) {
  
  		this.header("dictionary", t, name);
  		printD("nº words: ${t.wordsMap.length} in map, ${t.wordsList.length} in list");
  		this.separator();
  
  		// lists the words
  		t.wordsMap.forEach( (key, value) {
  			printD("${value.st}\t${value.name}\t"
  				"${value.isImmediate ? "[immediate]" : ""} "
  				"${value.isCompileOnly ? "[compileOnly]" : ""} "
  			);
  