BCF TRISB,5 MOVLW 0x08 MOVWF T0CON BCF INTCON, TMR0IF HERE MOVLW 0xFF MOVWF TMR0H MOVLW -D'48' MOVWF TMR0L CALL DELAY BTG PORTB,5 BRA HERE DELAY BSF T0CON, TMR0ON AGAIN BTFSS INTCON, TMR0IF BRA AGAIN BCF T0CON, TMR0ON BCF INTCON, TMR0IF RETURN