Try this:

Code:
@ DEVICE PIC12F675, INTRC_OSC_NOCLKOUT
	' System Clock Options (Internal)	
@ DEVICE PIC12F675, WDT_ON
	' Watchdog Timer
@ DEVICE PIC12F675, PWRT_ON
	' Power-On Timer
@ DEVICE PIC12F675, MCLR_OFF
	' Master Clear Options (Internal)
@ DEVICE PIC12F675, BOD_ON
	' Brown-Out Detect
@ DEVICE PIC12F675, CPD_OFF
	' Data Memory Code Protect
@ DEVICE PIC12F675, PROTECT_OFF
	' Program Code Protection

    DEFINE  ADC_BITS        10  ' Set resolution of conversion
    DEFINE  ADC_CLOCK       3   ' Set clock source (x/FOSC or FRC)
    DEFINE  ADC_SAMPLEUS    50  ' Set sampling time (in uS)

    DEFINE OSCCAL_1K 1
    DEFINE OSCCAL_2K 1

    ANSEL = %00000000               ' Set analog ports to digital mode
    ADCON0 = %10000001              ' Configure A/D channel
    CMCON = %00000111               ' Turn off comparator
    WPU = %00000000                 ' Disable pull-ups
    TRISIO = %00000                 ' Set all I/O's to outputs


    i           var     byte        ' Counter variable
    test_led    var     gpio.1
    led         var     gpio.2

    test_led = 0
    led = 0

main:
    for i = 0 to 59
        test_led = 1
        pause 500
        test_led = 0
        pause 500
        next i
    toggle led
    goto main