#define red 0x01
#define green 0x02
#define blue 0x04
#define off 0x00

#define Delay 1000



void blink_3_led();
void setup() {
}

void loop() {
blink_3_led();
}

void blink_3_led(){
  volatile char *dirf, *outf;
  dirf = (volatile char *)0x30; *dirf  = 0xff;
  outf = (volatile char *)0x31;
  *outf = red;
  delay(Delay);
  *outf = green;
  delay(Delay);
  *outf = blue;
  delay(Delay);
  
}