oops, sorry about the tag. does swapf work on the w register? i.e., does swapf w,0 swap nibbles in w? Mark Skeels Engineer Competition Electronics meskeels@earthlink.net Soli Deo Gloria! -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads