speed control using cytron algorithm

void loop(){

int pwm_value=0;
lcd.setCursor(0,0);

digitalWrite(dir,HIGH);                                          // set DIR pin HIGH or LOW

for(pwm_value=0;pwm_value<256;pwm_value++){

analogWrite(pwm,pwm_value);                               //increase PWM in every 0.1 sec
delay(100);

lcd.clear(); //display status of motor on LCD
lcd.setCursor(0,0);
lcd.print("PWM:");
lcd.print(pwm_value);
lcd.setCursor(0,1);
lcd.print("DIR:");
lcd.print(digitalRead(dir));

}
while(1) continue;                                               //continue,terminate loop;
}