Interrupt usage

[mister_e]

i see quite a few mistake here

1. there's no Goto Start after your LED blink
2. Disable INTERRUPT is not placed at the right place
3. you can't have more than 1 ON INTERRUPT GOTO
4. the first ON INTERRUPT is not a the right place
5. not sure about the NAP loop... to me PAUSEUS would be a better option
6. not sure about SLEEP in the ISR
7. yes you MUST clear INT flag
8. There's no RESUME at the end of your ISR
9. WAIT is a reserved word and can't be used for labels

but the rest is OK

Something like bellow should work

    @ __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_ON & _MCLRE_OFF & _BODEN_ON

    CMCON = 7               ' SETS DIGITAL MODE
    ANSEL = 0               ' GPIO.0 TO GPIO.3 SET AS DIGITAL

    OPTION_REG = 0          ' WEAK PULLUPS ENABLED
                            ' GP2/INT on falling edge
                            
    TRISIO = %00000100      ' GPIO.2 SET AS INPUT

    GPIO = 0

    N VAR BYTE              ' VARIABLE N DEFINED
    
    ON INTERRUPT GOTO WAIT_int    
    INTCON = %10010000      ' INTERRUPT ENABLED

  '  *************************************************************
START:
            TOGGLE GPIO.0
            FOR N=0 TO 250
                pauseus 1000
                NEXT
            GOTO START
                     
DISABLE        
WAIT_INT:
            TOGGLE GPIO.1
            INTCON.1=0      ' Clear GP2/INT flag
            RESUME
            ENABLE
            
            END