>  org 0
>  call  Start

goto start

> Init Bank1
>  movlw b'11110000' ;0,1,2,3 of porta are output
>  movwf TRISA
>  Bank0 ;bank 0
>  movlw b'00001010' ;all porta low
>  movwf PORTA

and you need to set the Analogue-Digital mix for PortA. See
F877 manual for other A-D combos

   movlw 0x07           ;assuming all digital
   movwf cmcon

>  retlw 0

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics