program crashes: is it my code or the chip?

[keithv]

I see what you are saying, Henrik. @ Acetronics2: I have been reading the reference manual and better understand now that a CONSTANT would not be the best modifier for this situation. I am trying to use a single push button switch to toggle between 2 different LEDs X 2, so that one half of the 1/2 PIC12F675a (GPIO.0,1,2) performs this function and the other half of 1/2 PIC12F675b (GPIO.3,4,5) performs the exact same function with an entirely different push button and set of LEDs. And also that both halves perform separate from one another.

Here is my new code. The toggle of the LEDs works good, but I am still having the same problem as before.

LED1 var GPIO.0 ' Alias GPIO.0 to LED1
LATCH1 var GPIO.1 'Alias GPIO.1 to LATCH1
PB1 Var GPIO.2 ' Alias GPIO.2 to push button
LED1on var word
LED1off var word
LED2 var GPIO.5
LATCH2 var GPIO.4
PB2 var GPIO.3
LED2on var word
LED2off var word
    
    ANSEL = 0 ' Set all digital
    CMCON = 7 ' Analog comparators off
    TRISIO = %11001100
    LED1 = 0
    LATCH1 = 1
    LED1off = LED1
    LED1on = LATCH1
    LED2 = 0
    LATCH2 = 1
    LED2off = LED2
    LED2on = LATCH2
    

main:
    if PB1 = 0 then
        pause 10 
        gosub LED1status
    LED1on = 1
    LED1off = 0
    endif
    
    if PB2 = 0 then
        pause 10
        gosub LED2status
    LED2on = 1
    LED2off = 0
    endif
    
        do until PB1 = 1
            pause 5
        loop
        
        do until PB2 = 1
            pause 5
        loop
        
    pause 10

    
goto main
End

LED1status:
    if LED1 = 1 then 
        LATCH1 = LED1on
        LED1 = LED1off
    elseif LED1 = 0 then
        LED1 = LED1on
        LATCH1 = LED1off
    endif
return

LED2status:
    if LED2 = 1 then
        LATCH2 = LED2on
        LED2 = LED2off
    elseif LED2 = 0 then
        LED2 = LED2on
        LATCH2 = LED2off
    endif
return