Ladies and Gents,
For some reason I keep trying to use smaller PICs instead of larger. My query today is about the Wake-on-pin change feature of the 10F222 and how to implement it.

I've got this program that while sleeping is pulling around 3uA at 6ish volts which is pretty good but I want, well, less. I'm not using a voltage regulator and am feeding 4 x AAA battery voltage to the circuit/PIC. My question is, is this the correct way to implement a wake on pin change? I think this is just a loop that naps alot and that's why it uses so little power not a wake on pin change.

Code:
clear

define OSC 4 ' if changed make sure to change config statement
adcon0 = 0         ' Turn off ADC
option_reg = %01000000 ' 7 = !GPWU wake on pin change. 6 = !GPPU weak pull up 
status = 0
osccal = %00000000  ' oscillator calibration
trisio = %1000      ' All but GP3 is output
gpio = 0

#CONFIG
       __config _IOFSCS_4MHZ & _WDT_ON & _MCLRE_OFF & _CP_OFF
#ENDCONFIG


GREEN var gpio.1             '-----------------------------variables and constants
RED var gpio.0
BLUE var gpio.2
SWITCH VAR GPIO.3 
state var byte

start_here:                  ' ------------------------------finally the program
state = gpio  ' read the gpio ports
adcon0 = 0 ' I read somewhere that after a reset you need to set this register again
nap 5
if switch = 0 then gosub light_LED ' looking for the button
goto start_here

light_led:         '-----------------------------------------------------led sub

red = 1            
pause 1000
red = 0
green = 1
pause 1000
green = 0
blue = 1
pause 1000
GREEN = 1
red = 1
pause 1000
GPIO = 0

return

END
I didn't add a schematic so I hope a word picture will do. The LED cathodes are connected to ground and the anode to a resistor, forget size, and the resistor to PIC port pins. The switch is between the PIC and ground. I know I could get lower current if I used a slower oscillator but that will take up two pins leaving me only 1 output pin. My ultimate goal is to have this battery powered device sit on the shelf for a very long time without having to change the batteries.

I'd appreciate some learning if someone would be willing to part with it.