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/************************************************************************/
/* */
/* Clock / Calendar */
/* */
/* Author: Peter Dannegger */
/* danni@specs.de */
/* */
/************************************************************************/
#include "main.h"
#include "clock.h"
#include "timebase.h"
#include "dcf77.h"
struct time data time;
const u8 code MDAYS[] = {
29, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
u8 is_cet(void)
{
return ((time.flags & FLAG_CET) && !(time.flags & FLAG_CEST));
}
u8 is_cest(void)
{
return ((time.flags & FLAG_CEST) && !(time.flags & FLAG_CET));
}
void clock(void)
{
u8 i;
time.second++;
if( time.second >= 60 ){
if (time.flags & FLAG_LEAP_SECOND && time.second == 60) {
return;
}
time.second = 0;
timeflags = 1<<ONE_MINUTE; // to correct deviation per minute
time.minute++;
if( time.minute == 60 ){
time.minute = 0;
time.hour++;
if (time.hour == 24) {
time.hour = 0;
time.day++;
time.wday++;
if( time.wday == 8 )
time.wday = 1;
i = time.month;
if( i == 2 && !(time.year % 4) ) // leap year
i = 0;
if( LPM(MDAYS+i) < time.day ){
time.day = 1;
time.month++;
if( time.month == 13 ){
time.month = 1;
time.year++;
if( time.year == 100 )
time.year = 0; // next century
}
}
}
if (time.flags & FLAG_SUMMERTIME_PENDING) {
if (is_cet() && time.hour == 2) {
time.hour = 3;
}
if (is_cest() && time.hour == 3) {
time.hour = 2;
}
}
}
}
}
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