> Your comments sometimes don't match what the code is doing (which should be
> > a hanging offence :-) for example:
> > ; Make RC0 & RC 3 inputs.
> > MOVLW 0x09
> > MOVWF TRISA
> >
> > A no-comment example later on, your delay routine:
> >
> > DELAY1S
> > CLRF TMR0
> > LOOPY
> > MOVF TMR0, W
> > SUBLW 0x0F
> > BTFSS STATUS, Z
> > GOTO LOOPY
> > RETURN

Jinx wrote:
> 
> movlw 0x0f
> subwf tmr0,w

Even with this fix still no good...
What is going to happen if for some reason ( interrupts ? temporary
malfunction etc.. TMR0 will change from 0x0E right to 0x10 ?
Loop would not stop until next TMR0 iteration. I would rewrite it
with using carry ( which is still not reliable because of 0xFF to
0x00 crossing went undetected ) as decision or better with T0IF flag.

; general initializing
; initializing TMR0 pre-scaler
; disabling TMR0 interrupt
; .....

DELAY1S
	movlw	-const
	movwf	TMR0
	bcf	INTCON,T0IF

	btfss	INTCON,T0IF
	goto	$-1
; .....
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