Try http://www.cs.ucr.edu/~dalton/i8051/ Please note that this project has NOTHING to do with me! (Isn't coincidence and amazing thing?!) I've submitted this URL to opencollector.org for future reference. Is this core on the open tech CD Jamil? Regards John -- To unsubscribe from cores mailing list please visit http://www.opencores.org/mailinglists.shtml