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-rw-r--r--src/emu/dirtc.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/emu/dirtc.cpp b/src/emu/dirtc.cpp
index 0d5442fe6c2..20ebbbacef8 100644
--- a/src/emu/dirtc.cpp
+++ b/src/emu/dirtc.cpp
@@ -197,8 +197,8 @@ void device_rtc_interface::advance_days()
if (m_register[RTC_MONTH] > 0 && m_register[RTC_DAY] > DAYS_PER_MONTH[m_register[RTC_MONTH] - 1])
{
- if (m_register[RTC_MONTH] != 2 || m_register[RTC_DAY] != 29 || !rtc_feature_leap_year() ||
- (m_register[RTC_YEAR] % 4) != 0) {
+ if (m_register[RTC_MONTH] != 2 || m_register[RTC_DAY] != 29 || !rtc_feature_leap_year() || !(m_register[RTC_YEAR] % 4))
+ {
m_register[RTC_DAY] = 1;
m_register[RTC_MONTH]++;
}