what is wrong in this code

[sayzer]

@ __config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _BODEN_OFF & _LVP_OFF & _CP_ON

CLEAR

TRISA  = 255
TRISB  = 0



' Comparator Control
CMCON=100101
CompOut var CMCON.7  

' CM7 C2OUT Comparator Output 2 (Read Only)
' CM6 C1OUT Comparator Output 1 (Read Only)

' Voltage Reference Control
VRCON = 0
Pauseus 10 ' VREF to settle.


PORTB = 0

LED_A var PORTB.0
LED_B var PORTB.6


Start:
    led_a = compout 
    led_B = ~compout

    pause 1

    goto start
                   
    end