char letter_p[] = { 0xff, 0xff,0x09 , 0x09, 0x0f, 0x06} ;
char letter_i[] = { 0x00, 0x81, 0xff, 0xff, 0x81, 0x00};
char letter_c[] = { 0x1c, 0x3e, 0x41, 0x41, 0x41, 0x22};
char i = 0;
char shift = 0 , count = 0;

void TIMER0() iv 0x0004 ics ICS_AUTO {
  if(INTCON.TMR0IF==1){
     INTCON.TMR0IF = 0;
     count++;
         if(count>= 8){
         count = 0;
         shift++;
         }

  }
}

void main() {
INTCON |= 1<<GIE | 1<<T0IE ;
OPTION_REG &= ~1<<T0CS & ~1<<PSA ;
OPTION_REG |= 0X07; // PRESC=256
trisb=0x01;
portb=0;
//cmcon=7;
//trisa=0x01;
porta=0;
    while(1){
          while(portb.b0==1){}
        //  vdelay_ms(shift * 1);
          for(i=0; i<6; i++){portb=letter_p[i]; delay_us(300);} //P
          portb=0;  delay_us(500);

          for(i=0; i<6; i++){portb=letter_i[i]; delay_us(300);} // I
          portb=0;  delay_us(500);

          for(i=0; i<6; i++){portb=letter_c[i]; delay_us(300);}// C
          portb=0;

    }
}

char letter_p[] ={0xff,0xff,0x09,0x09,0x0f,0x06};
char letter_i[] ={0x00,0x81,0xff,0xff,0x81,0x00};
char letter_c[] ={0x1c,0x3e,0x41,0x41,0x41,0x22};

unsigned int  i=0, shift=0, count=0;
void varDelay_us( unsigned int uss);

 void interrupt() iv 0x0004 ics ICS_AUTO {
/*if(INTCON.TMR0IF==1)
 {
    INTCON.TMR0IF=0;
    count++;
    if(count>=3)
    {
        count=0;
        shift++;

    }
  }*/
 if(INTCON.INTF==1)
 {
       /*shift++;
        if(shift > 255){shift=0;}
        vdelay_ms(shift/5);*/
       INTCON.INTF=0;
   //   porta=~porta;
        for(i=0;i<6;i++){portb=letter_p[i]<<1; delay_us(300);}
        portb=0; delay_us(500);
        for(i=0;i<6;i++){portb=letter_i[i]<<1 ; delay_us(300);}
        portb=0; delay_us(500);
        for(i=0;i<6;i++){portb=letter_c[i]<<1 ; delay_us(300);}
        portb=0;
 }
}
/*void varDelay_us( unsigned int uss){
     for (i=0; i<(uss/5); i++)
     {
      delay_ms(5);
     }
}*/
void main() {
 INTCON.GIE= 1;
 INTCON.INTE=1;
 OPTION_REG.INTEDG=1;

/*INTCON.T0IE=1;
OPTION_REG &=~1<<T0CS &~1<<PSA ;
OPTION_REG |=0X07;*/
trisa=0;
porta=0;
trisb=1;
portb=0;
//cmcon=7;
    while(1){ }
}