Matt Rhys-Roberts wrote: > Can anyone kindly remind me where I can find the file that tells the=20 > compiler the addresses of all the special function registers please?=20 > Hint: it's NOT in c:\MCC18\h\p18f8627.h ! Probably in the corresponding (pre-compiled) library. The corresponding file in src\extended\proc does seem to provide the=20 locations. It is probably (part of) the source for the library. --=20 Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .