Tamas Rudnai wrote: > but defining variables in > 'cblock' or 'res' instead. No! CBLOCK doesn't define variables at all. It only creates enumerated constants. If you see code with CBLOCK used to define variables, fire the author and get out of there fast. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist