int state;
void main()
{
    // set the analog pins to be digital
     ansel = 0;
     anselh = 0 ;

     trisc = 0x00;     // set port C to be output port;
     trisa.b3 = 1;     // set the 3rd bit of port A to be an input bit for on/off
     trisa.b4 = 1;     // set the 4th bit of port A to be an input bit for day/night mode
     trisa.b5 = 1;     // set the 5th bit of port A to be an input bit for blink mode

     porta.b3 = 1;     // the traffic light is on
     porta.b4 = 1;     // the day mode is on
     porta.b5 = 1;     // the blink mode is on

     eeprom_write(0x60, 0x20);
     state = eeprom_read(0x60);

     while(1)
     {
        if(porta.b3 == 0)
        {
           portc = 0x00;     // set port C to logic 0
        }
        else if(porta.b4 == 1)  // day mode
        {
           if(porta.b5 == 1)    // blink mode
           {
              portc = 0x20;
              eeprom_write(0x60, 0x20);
              delay_ms(18);
              portc = 0x00;
              delay_ms(1);
              portc = 0x20;
              delay_ms(1);

              portc = 0x40;
              eeprom_write(0x60, 0x40);
              delay_ms(5);

              portc = 0x80;
              eeprom_write(0x60, 0x80);
              delay_ms(18);
              portc = 0x00;
              delay_ms(1);
              portc = 0x80;
              delay_ms(1);
           }
           else
           {
              portc = 0x20;
              eeprom_write(0x60, 0x20);
              delay_ms(20);

              portc = 0x40;
              eeprom_write(0x60, 0x40);
              delay_ms(5);

              portc = 0x80;
              eeprom_write(0x60, 0x80);
              delay_ms(20);
           }
        }
        else if(porta.b4 == 0)      // night mode
        {
           if(porta.b5 == 1)    // blink mode
           {
              portc = 0x20;
              eeprom_write(0x60, 0x20);
              delay_ms(10);
              portc = 0x00;
              delay_ms(1);
              portc = 0x20;
              delay_ms(1);

              portc = 0x40;
              eeprom_write(0x60, 0x40);
              delay_ms(3);

              portc = 0x80;
              eeprom_write(0x60, 0x80);
              delay_ms(10);
              portc = 0x00;
              delay_ms(1);
              portc = 0x80;
              delay_ms(1);
           }
           else
           {
              portc = 0x20;
              eeprom_write(0x60, 0x20);
              delay_ms(12);

              portc = 0x40;
              eeprom_write(0x60, 0x40);
              delay_ms(3);

              portc = 0x80;
              eeprom_write(0x60, 0x80);
              delay_ms(12);
           }
        }
     }
}