Dear Piclist subscribers: Consider the following code: Table3 movwf Temp movlw HIGH Table3_Start movwf PCLATH movf Temp, w addlw LOW Table3_Start btfsc STATUS, C incf PCLATH, f movwf PCL Table3_Start dt "tab3",0 What is HIGH and LOW? I can't find any description of them in the PIC16F87X data sheet. Are they described in other documents at the Microchip website? Thank you to all who reply. Wallace Electrical Engineer U of T new grad -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist