Computer Architecture Department, University of Malaga, 29071 Malaga, Spain. ots@ac.uma.es|Computer Architecture Department, University of Malaga, 29071 Malaga, Spain. ots@ac.uma.es|Computer Architecture Department, University of Malaga, 29071 Malaga, Spain. ots@ac.uma.es|Computer Architecture Department, University of Malaga, 29071 Malaga, Spain. ots@ac.uma.es|Computer Architecture Department, University of Malaga, 29071 Malaga, Spain. ots@ac.uma.es