void qdrtcGetCmosTime() {
t_float64 total = (vramVarDWord(0x0000, QDRTC_VBIOS_ADDR_RTC_DAILY_COUNTER) *
QDRTC_TICK) / 1000;
t_nubit8 hour = (t_nubit8)(total / 3600);
t_nubit8 min = (t_nubit8)((total - hour * 3600) / 60);
t_nubit8 sec = (t_nubit8)(total - hour * 3600 - min * 60);
_ch = Hex2BCD(hour);
_cl = Hex2BCD(min);
_dh = Hex2BCD(sec);
_dl = 0x00;
ClrCF;
}
void qdrtcGetCmosDate() {
struct tm *t = gmtime(&qdrtc.start);
if (t->tm_year >= 100) { /* tm_year starts from 1900 */
_ch = 0x20; /* century: 20 (BCD) */
_cl = Hex2BCD(t->tm_year - 100);
} else {
_ch = 0x19;
_cl = Hex2BCD(t->tm_year - 100);
}
_dh = Hex2BCD(t->tm_mon + 1);
_dl = Hex2BCD(t->tm_mday);
ClrCF;
}
void vcmosRefresh()
{
static time_t tprev = 0;
time_t tcurr;
struct tm *ptm;
t_nubit8 century,year,month,mday,wday,hour,min,sec;
tcurr = time(NULL);
if (tcurr == tprev) return;
else tprev = tcurr;
ptm = LOCALTIME(&tcurr);
century = (t_nubit8)(19 + ptm->tm_year / 100);
year = (t_nubit8)(ptm->tm_year % 100);
month = (t_nubit8)(ptm->tm_mon + 0x01);
mday = (t_nubit8)(ptm->tm_mday);
wday = (t_nubit8)(ptm->tm_wday + 0x01);
hour = (t_nubit8)(ptm->tm_hour);
min = (t_nubit8)(ptm->tm_min);
sec = (t_nubit8)(ptm->tm_sec);
vcmos.reg[VCMOS_RTC_SECOND] = Hex2BCD(sec);
vcmos.reg[VCMOS_RTC_MINUTE] = Hex2BCD(min);
vcmos.reg[VCMOS_RTC_HOUR] = Hex2BCD(hour);
vcmos.reg[VCMOS_RTC_DAY_WEEK] = Hex2BCD(wday);
vcmos.reg[VCMOS_RTC_DAY_MONTH] = Hex2BCD(mday);
vcmos.reg[VCMOS_RTC_MONTH] = Hex2BCD(month);
vcmos.reg[VCMOS_RTC_YEAR] = Hex2BCD(year);
vcmos.reg[VCMOS_RTC_CENTURY] = Hex2BCD(century);
}