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fix obviously broken code in the RTC dayofweek calculation. Is it correct now? Not sure, but i think it fixes animal crossing at least

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zeromus 2010-04-24 20:10:24 +00:00
parent f535f9ac58
commit de4ff111bb
1 changed files with 11 additions and 2 deletions
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13
desmume/src/rtc.cpp
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@ -157,8 +157,17 @@ static void rtcRecv()
rtc.data[0] = toBCD(tm.tm_year % 100);
rtc.data[1] = toBCD(tm.tm_mon + 1);
rtc.data[2] = toBCD(tm.tm_mday);
rtc.data[3] = (tm.tm_wday + 7) & 7;
if (rtc.data[3] == 7) rtc.data[3] = 6;
//zero 24-apr-2010 - this is nonsense.
//but it is so wrong, someone mustve thought they knew what they were doing, so i am leaving it...
//rtc.data[3] = (tm.tm_wday + 6) & 7;
//if (rtc.data[3] == 7) rtc.data[3] = 6;
//do this instead (gbatek seems to say monday=0 but i don't think that is right)
//0=sunday is necessary to make animal crossing behave
//maybe it means "custom assignment" can be specified by the game
rtc.data[3] = tm.tm_wday;
if (!(rtc.regStatus1 & 0x02)) tm.tm_hour %= 12;
rtc.data[4] = ((tm.tm_hour < 12) ? 0x00 : 0x40) | toBCD(tm.tm_hour);
rtc.data[5] = toBCD(tm.tm_min);