car test

        list    p=PIC18f8722
        #include p18f8722.inc
; Begin
        code    0
        goto    initialize

        udata
; Start
        PRG code
initialize
        bcf     PORTA, 4
main
        btfss   PORTA, 0
        bra     exit
        btfss   PORTA, 1
        bra     exit
        btfss   PORTA, 2
        bra     exit
        btfss   PORTA, 3
        bra     exit
        bsf     PORTA, 4
exit
        end