#include "project.h"

#define BITS_PER_MIN 37
#define MINS_PER_HOUR 60
#define HOURS_PER_DAY 24

#define N_BITS ((BITS_PER_MIN)*(MINS_PER_HOUR)*(HOURS_PER_DAY))

#define BITS_PER_WORD 32

#define N_WORDS	(((N_BITS)+(BITS_PER_WORD-1))/(BITS_PER_WORD))


#define M1 (~0UL)
#define M2 ((1UL << (BITS_PER_MIN - BITS_PER_WORD))-1)

uint32_t meteotime_data[N_WORDS];

void meteotime_save(UTC *u, uint8_t *bits)
{
uint32_t c;
uint32_t d1;
uint32_t d2;

unsigned i;
unsigned word;
unsigned bit;
unsigned ibit;


//0-13
for (d1=0,c=1,i=1;i<15;++i,c<<=1)
	if (bits[i]) d1|=c;

//14
if (bits[17]) d1|=c;
c<<=1;

//15-31
for (i=36;i<53;++i,c<<=1)
	if (bits[i]) d1|=c;

//0-4
for (d2=0,c=1,i=53;i<58;++i,c<<=1)
	if (bits[i]) d2|=c;

bit=u->hour;
bit*=60;
bit+=u->minute;
bit*=BITS_PER_MIN;

word=bit/BITS_PER_WORD;
bit=bit & (BITS_PER_WORD -1);
ibit=BITS_PER_WORD-bit;


meteotime_data[word] &=~(M1 << bit);
meteotime_data[word] |=(d1 << bit);

word++;

meteotime_data[word] &=~((M1 >> ibit) |(M2 <<bit));
meteotime_data[word] |=(d1 >> ibit) | (d2 <<bit);

}