Im a bit concerend about my timeing routines( and spelling), At the moment they are OK but they have few CALL s in them and im worried about overflowing the stack. I entend to rewrite them with nested loop type format to elminate most of the CALLs I wondering if any one had any wiz bang perfect routines that could have a look at or any good ideas. Thanks Anthony thanks Anthony Buckwell \\\\\\\\\\\\\\\\\\\\\\\\\\\\//////////////////////////// Anthony Buckwell School Of Microelectronics, Faculty Of Engineering Griffth University-Nathan, Brisbane, QLD 4111 AUSTRALIA Ph: +61 7 3875 5061 Ph: 0419 783 109 Fax: +61 7 3875 3854 ////////////////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\