//EYE TRAINER CODE
  
  //BVB COLLEGE HUBLI
  //By,
  //   Radhakrishna.M.Gotur
  //   K.Vidyasagar
  //   Gnanesh.Upadyay


  #include<reg52.h>
  void speed (void);
  void speed1 (void);
  void cwise (unsigned int);
  void awise (unsigned int);
  void delay (unsigned int);
  void ledoff();
  sbit sw=P1^5;
  sbit lite=P0^4;
  sbit lite2=P0^0;
  
  unsigned char m,a,s,l;
  unsigned int d;
  void main(void)
  {
   P0=0xff;
   P1=0xff;
   P3=0xff;
	while(1)
	{
        m=P3;
		m=m&0x0f;
		s=P1;
		s=s&0x0f;
		l=P0;
		l=l&0x0f;
	
		if(sw==1)
		{

	switch(m)
	{
	case 0x01:for(a=0;a<3;a++)	  //angle 40
			   speed();
			   for(a=0;a<6;a++)
			   speed1();
			   for(a=0;a<3;a++)	  
			   speed();
			   break;
	 case 0x02:for(a=0;a<7;a++)	  //angle 100
			   speed();
			   for(a=0;a<14;a++)
			   speed1();
			   for(a=0;a<7;a++)	  
			   speed();
			   break;
	 
	 case 0x04:for(a=0;a<13;a++)	  //angle 180
			   speed();
			   for(a=0;a<26;a++)
			   speed1();
			   for(a=0;a<13;a++)	  
			   speed();
			   break;

	 
	  default: for(a=0;a<2;a++)	  
			   speed();
			   for(a=0;a<4;a++)
			   speed1();
			   for(a=0;a<2;a++)	  
			   speed();
			   break;
			   }
     }
      else
      {
       P2=0x00;
        lite=0;
		lite1=0;
	   
      }
	 }
	 }

	  void speed(void)
	 { 
	  switch(s)
	  {
	  case 0x01:d=25;
				break;
	  case 0x02:d=15;
				break;
	  case 0x04:d=7;
			    break;
	  case 0x08:d=3;
			    break;
	
	  default:d=5;
	  		    break;
	   }
	   cwise(d);
	   }

  void speed1(void)
	 { 
	   switch(s)
	  {
	  case 0x01:d=2;
				break;
	  case 0x02:d=2;
				break;
	  case 0x04:d=2;
			    break;
	  case 0x08:d=2;
			    break;
	
	  default:d=2;	
	  		    break;
	  }
	  awise(d);
	  }

   void cwise(unsigned int d)
	 { lite=0;
	   lite1=0;
           P2=0X08;
	   delay(d);
	   
	   P2=0X0A;
	   delay(d);
           P2=0X02;
	   delay(d);
           P2=0X06;
	   delay(d);
           P2=0X04;
           delay(d);
           P2=0X05;
           delay(d);
           P2=0X01;
           delay(d);
           P2=0X09;
	   delay(d);
     }
   void awise(unsigned int d)
     {
         ledoff();
       P2=0X09;
       delay(d);
	   ledoff();
       P2=0X01;
	   ledoff();
       delay(d);
       P2=0X05;
	   ledoff();
       delay(d);
       P2=0X04;
	   ledoff();
       delay(d);
       P2=0X06;
	   ledoff();
       delay(d);
       P2=0X02;
	   ledoff();
       delay(d);
       P2=0X0A;
	   ledoff();
       delay(d);
       P2=0X08;
	   ledoff();
       delay(d);
     }	
	 void delay(unsigned int d)
      {
	  unsigned int i,j;
	  for(j=0;j<d;j++)
	  for(i=0;i<1000;i++);
	  }
	void ledoff()
	{
	if( lite2 == 1)
	{
	   lite=0;
	   
 	}
	else
	{
	 lite=1;
	 
	 }
	 }