Michael:
Pic has every thing you need .
for example how to do NOT function.

        movlw    b'1'           ; load 1 in w
        movwf    temp         ; save it here
        movwf    portb         ; send it to  portb  rb0 is 1 you can use led
        comf       temp,w     ; complement  temp  ( NOT)
        movwf    portb        ; now portb rb0  is 0

hope this helps
Andre


Michael Hearn wrote:

> Dear all,
>
> I need to NOT a number for a control project my school is doing. However,
> the instruction set for the PIC chip does not have a NOT. I think you can
> do it using XOR but i'm not sure how that works.
>
> Please help,
> Michael Hearn and Tom Furlong (Fallibroome High School, England)



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