From abd0c6bda0c89f36528e1a7efac99277607a5280 Mon Sep 17 00:00:00 2001 From: Paul Brook Date: Fri, 20 Nov 2009 00:03:47 +0000 Subject: BCD cleanup Combine multiple BCD implementations. Signed-off-by: Paul Brook --- hw/mc146818rtc.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) (limited to 'hw/mc146818rtc.c') diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index 61ddf0b..b8c7b0c 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -259,7 +259,7 @@ static void cmos_ioport_write(void *opaque, uint32_t addr, uint32_t data) } } -static inline int to_bcd(RTCState *s, int a) +static inline int rtc_to_bcd(RTCState *s, int a) { if (s->cmos_data[RTC_REG_B] & REG_B_DM) { return a; @@ -268,7 +268,7 @@ static inline int to_bcd(RTCState *s, int a) } } -static inline int from_bcd(RTCState *s, int a) +static inline int rtc_from_bcd(RTCState *s, int a) { if (s->cmos_data[RTC_REG_B] & REG_B_DM) { return a; @@ -281,17 +281,17 @@ static void rtc_set_time(RTCState *s) { struct tm *tm = &s->current_tm; - tm->tm_sec = from_bcd(s, s->cmos_data[RTC_SECONDS]); - tm->tm_min = from_bcd(s, s->cmos_data[RTC_MINUTES]); - tm->tm_hour = from_bcd(s, s->cmos_data[RTC_HOURS] & 0x7f); + 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) && (s->cmos_data[RTC_HOURS] & 0x80)) { tm->tm_hour += 12; } - tm->tm_wday = from_bcd(s, s->cmos_data[RTC_DAY_OF_WEEK]) - 1; - tm->tm_mday = from_bcd(s, s->cmos_data[RTC_DAY_OF_MONTH]); - tm->tm_mon = from_bcd(s, s->cmos_data[RTC_MONTH]) - 1; - tm->tm_year = from_bcd(s, s->cmos_data[RTC_YEAR]) + s->base_year - 1900; + tm->tm_wday = rtc_from_bcd(s, s->cmos_data[RTC_DAY_OF_WEEK]) - 1; + tm->tm_mday = rtc_from_bcd(s, s->cmos_data[RTC_DAY_OF_MONTH]); + tm->tm_mon = rtc_from_bcd(s, s->cmos_data[RTC_MONTH]) - 1; + tm->tm_year = rtc_from_bcd(s, s->cmos_data[RTC_YEAR]) + s->base_year - 1900; } static void rtc_copy_date(RTCState *s) @@ -299,24 +299,24 @@ static void rtc_copy_date(RTCState *s) const struct tm *tm = &s->current_tm; int year; - s->cmos_data[RTC_SECONDS] = to_bcd(s, tm->tm_sec); - s->cmos_data[RTC_MINUTES] = to_bcd(s, tm->tm_min); + 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) { /* 24 hour format */ - s->cmos_data[RTC_HOURS] = to_bcd(s, tm->tm_hour); + s->cmos_data[RTC_HOURS] = rtc_to_bcd(s, tm->tm_hour); } else { /* 12 hour format */ - s->cmos_data[RTC_HOURS] = to_bcd(s, tm->tm_hour % 12); + s->cmos_data[RTC_HOURS] = rtc_to_bcd(s, tm->tm_hour % 12); if (tm->tm_hour >= 12) s->cmos_data[RTC_HOURS] |= 0x80; } - s->cmos_data[RTC_DAY_OF_WEEK] = to_bcd(s, tm->tm_wday + 1); - s->cmos_data[RTC_DAY_OF_MONTH] = to_bcd(s, tm->tm_mday); - s->cmos_data[RTC_MONTH] = to_bcd(s, tm->tm_mon + 1); + s->cmos_data[RTC_DAY_OF_WEEK] = rtc_to_bcd(s, tm->tm_wday + 1); + s->cmos_data[RTC_DAY_OF_MONTH] = rtc_to_bcd(s, tm->tm_mday); + s->cmos_data[RTC_MONTH] = rtc_to_bcd(s, tm->tm_mon + 1); year = (tm->tm_year - s->base_year) % 100; if (year < 0) year += 100; - s->cmos_data[RTC_YEAR] = to_bcd(s, year); + s->cmos_data[RTC_YEAR] = rtc_to_bcd(s, year); } /* month is between 0 and 11. */ @@ -497,7 +497,7 @@ static void rtc_set_date_from_host(RTCState *s) qemu_get_timedate(&tm, 0); rtc_set_date(s, &tm); - val = to_bcd(s, (tm.tm_year / 100) + 19); + val = rtc_to_bcd(s, (tm.tm_year / 100) + 19); rtc_set_memory(s, REG_IBM_CENTURY_BYTE, val); rtc_set_memory(s, REG_IBM_PS2_CENTURY_BYTE, val); } -- cgit v1.1