void main(){
  char oldstate = 0;
  int x;
  TRISB = 0xFF;          // set PORTB to be input
  TRISD = 0;             // set PORTD to be output
  PORTD = 0x0F;          // initialize PORTD

  do {
    if (Button(&PORTB, 1, 1, 1))                // detect logical one on RB1 pin
      oldstate = 1;
    if (oldstate && Button(&PORTB, 1, 1, 0)) { 
                                                // detect one-to-zerotransition on RB1 pin
       for(x=0;x,1000;x++)
{
//code of my project
PORTd=0;
Delay_us(337);
PORTd=0B00000101;
Delay_us(2717);
PORTd=0B00001001;
delay_us(3889);
PORTd=0B00000101;
delay_us(2667);
PORTd=0;
delay_us(777);
PORTd=0B00000110;
delay_us(2667);
PORTd=0B00001010;
delay_us(3889);
PORTd=0B00000110;
delay_us(2667);
PORTd=0;
delay_us(388);
}


       // negates value on PORTD
      oldstate = 0;
    }
  } while(1);         // endless loop
  }