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-rw-r--r--src/include/pc80/mc146818rtc.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h
index a1f06e7021..9f18ba49e8 100644
--- a/src/include/pc80/mc146818rtc.h
+++ b/src/include/pc80/mc146818rtc.h
@@ -76,6 +76,18 @@
# define RTC_VRT 0x80 /* valid RAM and time */
/**********************************************************************/
+/* Date and Time in RTC CMOS */
+#define RTC_CLK_SECOND 0
+#define RTC_CLK_SECOND_ALARM 1
+#define RTC_CLK_MINUTE 2
+#define RTC_CLK_MINUTE_ALARM 3
+#define RTC_CLK_HOUR 4
+#define RTC_CLK_HOUR_ALARM 5
+#define RTC_CLK_DAYOFWEEK 6
+#define RTC_CLK_DAYOFMONTH 7
+#define RTC_CLK_MONTH 8
+#define RTC_CLK_YEAR 9
+
/* On PCs, the checksum is built only over bytes 16..45 */
#define PC_CKS_RANGE_START 16
#define PC_CKS_RANGE_END 45