#include <pic.h>
#include "biosdem.h"
__CONFIG(0X3539);

void main(void)
	{
		unsigned char c = 0 ;
	    static	bit b=0 ;
		TRISB = 0xF0 ;
		PORTB = 0 ;	
		lcd_init();
		lcd_clear();	
		for ( ; ; )
			{
			  if ( RA4 == 0 )
			  	{
			  		
			  		if ( b==0 )
			  		 {
			  		  c = c + 1 ;
			  		  b = 1 ;
			  		  lcd_goto(LCD_LINE_ONE);
			  		  lcd_printf("%d",c);
			  		 }
			  	}
			  else
			  	{
			  	     b = 0 ;
			  	}
			PORTB = c ;  	
			
			}
	
	}