a > b

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

        udata
a       res .1
b       res .1
c       res .1
; Start
        PRG code
initialize
; Set a and b here
main
        comf    b, W ; c = a - b
        addlw   .1
        addwf   a, W
        movwf   c
        tstfsz  c ; c == 0
        bra     not_equal
        movlw   .0
        movwf   a
        movwf   b
        bra     exit
not_equal
        btfsc   c, 7
        bra     a_gt_b
        comf    c, W
        addlw   .1
        movwf   b
        bra     exit
a_gt_b
        movwf   a
exit
        end