#include <stdio.h>
#include <stdint.h>

typedef union {
	struct tagPORTABITS {
  		unsigned char RA0:1;
  		unsigned char RA1:1;
  		unsigned char RA2:1;
  		unsigned char RA3:1;
  		unsigned char RA4:1;
  		unsigned char RA5:1;
  		unsigned char RA6:1;
  		unsigned char RA7:1;
  	};
  	unsigned char giallo;
} PORTABITS;
/*extern*/ volatile PORTABITS PORTAbits;

int x __attribute__ ((aligned (2)));

void to_bin (void * number, unsigned char num_size, char *string);

int main (int argv, char *argc[])	{
	char string[8 * sizeof(int) + 1];
	//PORTABITS PORTAbits;
	PORTAbits.RA0 = 1;
	PORTAbits.RA1 = 1;
	PORTAbits.RA2 = 0;
	PORTAbits.RA3 = 0;
	PORTAbits.RA4 = 1;
	PORTAbits.RA5 = 1;
	PORTAbits.RA6 = 0;
	PORTAbits.RA7 = 1;
	to_bin((void*) &PORTAbits, sizeof(PORTABITS), string);
	printf("PORTAbits = %s\n", string);
	PORTAbits.giallo = 0xFF;
	to_bin((void*) &PORTAbits, sizeof(PORTABITS), string);
	printf("PORTAbits = %s\n", string);
	x = 0x0FFFFFFF;
	to_bin((void*) &x, sizeof(int), string);
	printf("x = %s\n", string);
	return 0;
}

void to_bin (void * number, unsigned char num_size, char *string)	{
	int i, e, f;
	unsigned char *num;
	for(f = 0, e = 8 * num_size -1; f < num_size;  f++)	{
		num = number + f;
		for(i = 0; i < 8; i++, e--)	string[e] = ((*num >> i) & 1) ? '1' : '0';
	}
	string[8 * num_size] = '\0';
}