diff options
| -rw-r--r-- | hw/mc146818rtc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index 6466aff316..ec7c4ecdb6 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -72,6 +72,7 @@ #define REG_B_UIE 0x10 #define REG_B_SQWE 0x08 #define REG_B_DM 0x04 +#define REG_B_24H 0x02 #define REG_C_UF 0x10 #define REG_C_IRQF 0x80 @@ -285,7 +286,7 @@ static void rtc_set_time(RTCState *s) tm->tm_sec = rtc_from_bcd(s, s->cmos_data[RTC_SECONDS]); tm->tm_min = rtc_from_bcd(s, s->cmos_data[RTC_MINUTES]); tm->tm_hour = rtc_from_bcd(s, s->cmos_data[RTC_HOURS] & 0x7f); - if (!(s->cmos_data[RTC_REG_B] & 0x02) && + if (!(s->cmos_data[RTC_REG_B] & REG_B_24H) && (s->cmos_data[RTC_HOURS] & 0x80)) { tm->tm_hour += 12; } @@ -304,7 +305,7 @@ static void rtc_copy_date(RTCState *s) s->cmos_data[RTC_SECONDS] = rtc_to_bcd(s, tm->tm_sec); s->cmos_data[RTC_MINUTES] = rtc_to_bcd(s, tm->tm_min); - if (s->cmos_data[RTC_REG_B] & 0x02) { + if (s->cmos_data[RTC_REG_B] & REG_B_24H) { /* 24 hour format */ s->cmos_data[RTC_HOURS] = rtc_to_bcd(s, tm->tm_hour); } else { |