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[1/2] mc146818rtc: constantify

Message ID 1295953515-17818-1-git-send-email-aurelien@aurel32.net
State New
Headers show

Commit Message

Aurelien Jarno Jan. 25, 2011, 11:05 a.m. UTC 
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 hw/mc146818rtc.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c
index 6466aff..ec7c4ec 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 {