pic16f688

OSCCON = %01110000
DEFINE OSC 8
trisa = %101111
vin var byte
compvalue var byte
main:
adcin porta.0, vin
if compvalue > (vin + 1) or compvalue < (vin - 1) then serout porta.5,6,[#vin]
compvalue = vin
goto main

CMCON0 = 7 gives me a syntax error for some reason.