/* Called on every get time. */
static void set_registers()
{
int is24hour = (nvrram[0xB] & 2) ? 1 : 0;
int isbcd = (nvrram[0xB] & 4) ? 0 : 1;
uint8_t baknvr[10];
memcpy(baknvr,nvrram,10);
if (AMSTRAD)
{
is24hour = 1;
isbcd = 1;
}
nvrram[0] = final_form(isbcd, second);
nvrram[2] = final_form(isbcd, minute);
nvrram[4] = is24hour ? final_form(isbcd, hour) : final_form(isbcd, to_12_hour(hour));
nvrram[6] = week_day();
nvrram[7] = final_form(isbcd, day);
nvrram[8] = final_form(isbcd, month);
nvrram[9] = final_form(isbcd, (year % 100));
if (baknvr[0] != nvrram[0] ||
baknvr[2] != nvrram[2] ||
baknvr[4] != nvrram[4] ||
baknvr[6] != nvrram[6] ||
baknvr[7] != nvrram[7] ||
baknvr[8] != nvrram[8] ||
baknvr[9] != nvrram[9])
nvrram[0xA]|=0x80;
}
static void display_layer_update_callback(Layer *me, GContext* context) {
time_t now = time(NULL);
struct tm *t = localtime(&now);
unsigned short hour = t->tm_hour;
unsigned short hour_first_digit;
unsigned short hour_second_digit;
if(!clock_is_24h_style()) {
unsigned short period;
if(hour < 12) period = 0; // 0 for AM
else period = 1; // 1 for PM
hour = to_12_hour(hour);
hour_first_digit = period;
hour_second_digit = hour;
}
else {
hour_first_digit = hour / 10;
hour_second_digit = hour % 10;
}
draw_col(
context,
hour_first_digit,
HOURS_FIRST_DIGIT_MAX_ROWS,
HOURS_FIRST_DIGIT_COL
);
draw_col(context,
hour_second_digit,
DEFAULT_MAX_ROWS,
HOURS_SECOND_DIGIT_COL
);
draw_col(context,
t->tm_min / 10,
MINUTES_FIRST_DIGIT_MAX_ROWS,
MINUTES_FIRST_DIGIT_COL
);
draw_col(context,
t->tm_min % 10,
DEFAULT_MAX_ROWS,
MINUTES_SECOND_DIGIT_COL
);
}
static void update_reg_0B(int val)
{
int old_24 = (nvrram[0xB] & 2) ? 1 : 0;
int new_24 = (val & 2) ? 1 : 0;
int old_bcd = (nvrram[0xB] & 4) ? 0 : 1;
int new_bcd = (val & 4) ? 0 : 1;
uint8_t baknvr[10];
if (AMSTRAD) return;
memcpy(baknvr,nvrram,10);
/* First convert to regular form. */
second = original_form(old_bcd, nvrram[0]);
minute = original_form(old_bcd, nvrram[2]);
hour = old_24 ? original_form(old_bcd, nvrram[4]) : from_12_hour(original_form(old_bcd, nvrram[4]));
day = original_form(old_bcd, nvrram[7]);
month = original_form(old_bcd, nvrram[8]);
year = original_form(old_bcd, nvrram[9]) + 1900;
/* Then convert to new form. */
nvrram[0] = final_form(new_bcd, second);
nvrram[2] = final_form(new_bcd, minute);
nvrram[4] = new_24 ? final_form(new_bcd, hour) : final_form(new_bcd, to_12_hour(hour));
nvrram[6] = week_day();
nvrram[7] = final_form(new_bcd, day);
nvrram[8] = final_form(new_bcd, month);
nvrram[9] = final_form(new_bcd, (year % 100));
if (baknvr[0] != nvrram[0] ||
baknvr[2] != nvrram[2] ||
baknvr[4] != nvrram[4] ||
baknvr[6] != nvrram[6] ||
baknvr[7] != nvrram[7] ||
baknvr[8] != nvrram[8] ||
baknvr[9] != nvrram[9])
nvrram[0xA]|=0x80;
}
