void setup() {
  // put your setup code here, to run once:
volatile char*dirf;
dirf=0x30;
volatile char*outf;
outf=0x31;

}

void loop() {
  // put your main code here, to run repeatedly:
char a=0x80 ,b ;
volatile char i;
  volatile long m;
volatile char*outf;
outf=0x31;

 for( int i = 0; i < 3; i++) {
        b = (a >> 1)  ;
     a=b;
*outf=a;
for(m=0;m< 200000;m++);
    }

}

/*Glow the ODD LEDs one by one (Do not off the LED) 
for(int i = 0; i < 8; i++) {
        b = (a << 2) | 0x02; // Shift left and set LSB to 1
        a = b; 
 *outf=a;
for(m=0;m< 200000;m++);
    } 

}
/*/


/* code for Glow the EVEN LEDs one by one (Do not off the LED)
for(int i = 0; i < 8; i++) {
        b = (a << 2) | 0x01; // Shift left and set LSB to 1
        a = b; 
 *outf=a;
for(m=0;m< 200000;m++);
    } 
}
/*/
/*
    for(i=0;i<=7;i++)
{
    b =  c | (x << i); 
 // for(m=0;m< 180000;m++);
  *outf=b; 
} 
*/


/* Code for 3. Glow the LEDs one by one (Do not off the LED)
for(int i = 0; i < 8; i++) {
        b = (a << 1) | 0x01; // Shift left and set LSB to 1
        a = b; 
 *outf=a;
for(m=0;m< 200000;m++);
    } 

/*/