Kevin Lineberry wrote: > I need to write a function in asm but the program is a c one. I don't recognize your "mcc18" compiler name, but surely there is a section in the manual about that? What does it say? ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist