Arduino LED Blinker

/*

Playing with generating and trapping interrupts using the Arduino and
an ATtiny2313.

Simple LED blinker, pin 9 will actually be connected to the ATtiny.

*/

byte led_pin = 8;
byte int_pin = 9;

void setup() {
  // put your setup code here, to run once:
  pinMode(led_pin, OUTPUT);
  pinMode(int_pin, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led_pin, HIGH);
  digitalWrite(int_pin, HIGH);
  delay(1000);
  digitalWrite(led_pin, LOW);
  digitalWrite(int_pin, LOW);
  delay(1000);

}