> I'm not sure I understand here. > Two CBLOCK's can overlap, not ? Not if used properly: only one CBLOCK with a start value, most convenient place is in the processor header file. in the main code file (and included code sub-files) only CBLOCKs without start value. No overlaps this way, but still no check on the upper bound. -- Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist