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Diffstat (limited to 'src/devices/machine/timekpr.cpp')
-rw-r--r--src/devices/machine/timekpr.cpp264
1 files changed, 130 insertions, 134 deletions
diff --git a/src/devices/machine/timekpr.cpp b/src/devices/machine/timekpr.cpp
index 7dddede2c05..f7cfed5451c 100644
--- a/src/devices/machine/timekpr.cpp
+++ b/src/devices/machine/timekpr.cpp
@@ -37,53 +37,47 @@ DEFINE_DEVICE_TYPE(MK48T12, mk48t12_device, "mk48t12", "MK48T12 Timekeeper")
MACROS
***************************************************************************/
-#define MASK_SECONDS ( 0x7f )
-#define MASK_MINUTES ( 0x7f )
-#define MASK_HOURS ( 0x3f )
-#define MASK_DAY ( 0x07 )
-#define MASK_DATE ( 0x3f )
-#define MASK_MONTH ( 0x1f )
-#define MASK_YEAR ( 0xff )
-#define MASK_CENTURY ( 0xff )
+#define MASK_SECONDS (0x7f)
+#define MASK_MINUTES (0x7f)
+#define MASK_HOURS (0x3f)
+#define MASK_DAY (0x07)
+#define MASK_DATE (0x3f)
+#define MASK_MONTH (0x1f)
+#define MASK_YEAR (0xff)
+#define MASK_CENTURY (0xff)
-#define CONTROL_W ( 0x80 )
-#define CONTROL_R ( 0x40 )
-#define CONTROL_S ( 0x20 ) /* not emulated */
-#define CONTROL_CALIBRATION ( 0x1f ) /* not emulated */
+#define CONTROL_W (0x80)
+#define CONTROL_R (0x40)
+#define CONTROL_S (0x20) /* not emulated */
+#define CONTROL_CALIBRATION (0x1f) /* not emulated */
-#define SECONDS_ST ( 0x80 )
+#define SECONDS_ST (0x80)
-#define DAY_FT ( 0x40 ) /* M48T37 - not emulated */
-#define DAY_CEB ( 0x20 ) /* M48T35/M48T58 */
-#define DAY_CB ( 0x10 ) /* M48T35/M48T58 */
+#define DAY_FT (0x40) /* M48T37 - not emulated */
+#define DAY_CEB (0x20) /* M48T35/M48T58 */
+#define DAY_CB (0x10) /* M48T35/M48T58 */
-#define DATE_BLE ( 0x80 ) /* M48T58: not emulated */
-#define DATE_BL ( 0x40 ) /* M48T58: not emulated */
+#define DATE_BLE (0x80) /* M48T58: not emulated */
+#define DATE_BL (0x40) /* M48T58: not emulated */
-#define FLAGS_BL ( 0x10 ) /* MK48T08/M48T37: not emulated */
-#define FLAGS_AF ( 0x40 ) /* M48T37: not emulated */
-#define FLAGS_WDF ( 0x80 ) /* M48T37 */
+#define FLAGS_BL (0x10) /* MK48T08/M48T37: not emulated */
+#define FLAGS_AF (0x40) /* M48T37: not emulated */
+#define FLAGS_WDF (0x80) /* M48T37 */
/***************************************************************************
INLINE FUNCTIONS
***************************************************************************/
-static void counter_to_ram( uint8_t *data, int offset, int counter )
+inline void counter_to_ram(u8 *data, s32 offset, u8 counter)
{
- if( offset >= 0 )
- {
- data[ offset ] = counter;
- }
+ if (offset >= 0)
+ data[offset] = counter;
}
-static int counter_from_ram( uint8_t *data, int offset )
+inline int counter_from_ram(u8 const *data, s32 offset, u8 unmap = 0)
{
- if( offset >= 0 )
- {
- return data[ offset ];
- }
- return 0;
+ return (offset >= 0) ? data[offset] : unmap;
}
//**************************************************************************
@@ -94,7 +88,7 @@ static int counter_from_ram( uint8_t *data, int offset )
// timekeeper_device_config - constructor
//-------------------------------------------------
-timekeeper_device::timekeeper_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, int size)
+timekeeper_device::timekeeper_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u32 size)
: device_t(mconfig, type, tag, owner, clock)
, device_nvram_interface(mconfig, *this)
, m_reset_cb(*this)
@@ -104,7 +98,7 @@ timekeeper_device::timekeeper_device(const machine_config &mconfig, device_type
{
}
-m48t02_device::m48t02_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+m48t02_device::m48t02_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, M48T02, tag, owner, clock, 0x800)
{
m_offset_watchdog = -1;
@@ -120,7 +114,7 @@ m48t02_device::m48t02_device(const machine_config &mconfig, const char *tag, dev
m_offset_flags = -1;
}
-m48t35_device::m48t35_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+m48t35_device::m48t35_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, M48T35, tag, owner, clock, 0x8000)
{
m_offset_watchdog = -1;
@@ -136,7 +130,7 @@ m48t35_device::m48t35_device(const machine_config &mconfig, const char *tag, dev
m_offset_flags = -1;
}
-m48t37_device::m48t37_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+m48t37_device::m48t37_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, M48T37, tag, owner, clock, 0x8000)
{
m_offset_watchdog = 0x7ff7;
@@ -152,7 +146,7 @@ m48t37_device::m48t37_device(const machine_config &mconfig, const char *tag, dev
m_offset_flags = 0x7ff0;
}
-m48t58_device::m48t58_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+m48t58_device::m48t58_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, M48T58, tag, owner, clock, 0x2000)
{
m_offset_watchdog = -1;
@@ -168,7 +162,7 @@ m48t58_device::m48t58_device(const machine_config &mconfig, const char *tag, dev
m_offset_flags = -1;
}
-mk48t08_device::mk48t08_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+mk48t08_device::mk48t08_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, MK48T08, tag, owner, clock, 0x2000)
{
m_offset_watchdog = -1;
@@ -184,7 +178,7 @@ mk48t08_device::mk48t08_device(const machine_config &mconfig, const char *tag, d
m_offset_flags = 0x1ff0;
}
-mk48t12_device::mk48t12_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+mk48t12_device::mk48t12_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: timekeeper_device(mconfig, MK48T12, tag, owner, clock, 0x800)
{
m_offset_watchdog = -1;
@@ -214,27 +208,27 @@ void timekeeper_device::device_start()
machine().base_datetime(systime);
m_control = 0;
- m_seconds = time_helper::make_bcd( systime.local_time.second );
- m_minutes = time_helper::make_bcd( systime.local_time.minute );
- m_hours = time_helper::make_bcd( systime.local_time.hour );
- m_day = time_helper::make_bcd( systime.local_time.weekday + 1 );
- m_date = time_helper::make_bcd( systime.local_time.mday );
- m_month = time_helper::make_bcd( systime.local_time.month + 1 );
- m_year = time_helper::make_bcd( systime.local_time.year % 100 );
- m_century = time_helper::make_bcd( systime.local_time.year / 100 );
- m_data.resize( m_size );
-
- save_item( NAME(m_control) );
- save_item( NAME(m_seconds) );
- save_item( NAME(m_minutes) );
- save_item( NAME(m_hours) );
- save_item( NAME(m_day) );
- save_item( NAME(m_date) );
- save_item( NAME(m_month) );
- save_item( NAME(m_year) );
- save_item( NAME(m_century) );
- save_item( NAME(m_data) );
- save_item( NAME(m_watchdog_delay));
+ m_seconds = time_helper::make_bcd(systime.local_time.second);
+ m_minutes = time_helper::make_bcd(systime.local_time.minute);
+ m_hours = time_helper::make_bcd(systime.local_time.hour);
+ m_day = time_helper::make_bcd(systime.local_time.weekday + 1);
+ m_date = time_helper::make_bcd(systime.local_time.mday);
+ m_month = time_helper::make_bcd(systime.local_time.month + 1);
+ m_year = time_helper::make_bcd(systime.local_time.year % 100);
+ m_century = time_helper::make_bcd(systime.local_time.year / 100);
+ m_data.resize(m_size);
+
+ save_item(NAME(m_control));
+ save_item(NAME(m_seconds));
+ save_item(NAME(m_minutes));
+ save_item(NAME(m_hours));
+ save_item(NAME(m_day));
+ save_item(NAME(m_date));
+ save_item(NAME(m_month));
+ save_item(NAME(m_year));
+ save_item(NAME(m_century));
+ save_item(NAME(m_data));
+ save_item(NAME(m_watchdog_delay));
emu_timer *timer = timer_alloc();
timer->adjust(attotime::from_seconds(1), 0, attotime::from_seconds(1));
@@ -254,98 +248,98 @@ void timekeeper_device::device_reset() { }
void timekeeper_device::counters_to_ram()
{
- counter_to_ram( &m_data[0], m_offset_control, m_control );
- counter_to_ram( &m_data[0], m_offset_seconds, m_seconds );
- counter_to_ram( &m_data[0], m_offset_minutes, m_minutes );
- counter_to_ram( &m_data[0], m_offset_hours, m_hours );
- counter_to_ram( &m_data[0], m_offset_day, m_day );
- counter_to_ram( &m_data[0], m_offset_date, m_date );
- counter_to_ram( &m_data[0], m_offset_month, m_month );
- counter_to_ram( &m_data[0], m_offset_year, m_year );
- counter_to_ram( &m_data[0], m_offset_century, m_century );
+ counter_to_ram(&m_data[0], m_offset_control, m_control);
+ counter_to_ram(&m_data[0], m_offset_seconds, m_seconds);
+ counter_to_ram(&m_data[0], m_offset_minutes, m_minutes);
+ counter_to_ram(&m_data[0], m_offset_hours, m_hours);
+ counter_to_ram(&m_data[0], m_offset_day, m_day);
+ counter_to_ram(&m_data[0], m_offset_date, m_date);
+ counter_to_ram(&m_data[0], m_offset_month, m_month);
+ counter_to_ram(&m_data[0], m_offset_year, m_year);
+ counter_to_ram(&m_data[0], m_offset_century, m_century);
}
void timekeeper_device::counters_from_ram()
{
- m_control = counter_from_ram( &m_data[0], m_offset_control );
- m_seconds = counter_from_ram( &m_data[0], m_offset_seconds );
- m_minutes = counter_from_ram( &m_data[0], m_offset_minutes );
- m_hours = counter_from_ram( &m_data[0], m_offset_hours );
- m_day = counter_from_ram( &m_data[0], m_offset_day );
- m_date = counter_from_ram( &m_data[0], m_offset_date );
- m_month = counter_from_ram( &m_data[0], m_offset_month );
- m_year = counter_from_ram( &m_data[0], m_offset_year );
- m_century = counter_from_ram( &m_data[0], m_offset_century );
+ m_control = counter_from_ram(&m_data[0], m_offset_control);
+ m_seconds = counter_from_ram(&m_data[0], m_offset_seconds);
+ m_minutes = counter_from_ram(&m_data[0], m_offset_minutes);
+ m_hours = counter_from_ram(&m_data[0], m_offset_hours);
+ m_day = counter_from_ram(&m_data[0], m_offset_day);
+ m_date = counter_from_ram(&m_data[0], m_offset_date);
+ m_month = counter_from_ram(&m_data[0], m_offset_month);
+ m_year = counter_from_ram(&m_data[0], m_offset_year);
+ m_century = counter_from_ram(&m_data[0], m_offset_century);
}
void timekeeper_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
LOGMASKED(LOG_TICKS, "Tick\n");
- if( ( m_seconds & SECONDS_ST ) != 0 ||
- ( m_control & CONTROL_W ) != 0 )
+ if ((m_seconds & SECONDS_ST) != 0 ||
+ (m_control & CONTROL_W) != 0)
{
logerror("No Tick\n");
return;
}
- int carry = time_helper::inc_bcd( &m_seconds, MASK_SECONDS, 0x00, 0x59 );
- if( carry )
+ int carry = time_helper::inc_bcd(&m_seconds, MASK_SECONDS, 0x00, 0x59);
+ if (carry)
{
- carry = time_helper::inc_bcd( &m_minutes, MASK_MINUTES, 0x00, 0x59 );
+ carry = time_helper::inc_bcd(&m_minutes, MASK_MINUTES, 0x00, 0x59);
}
- if( carry )
+ if (carry)
{
- carry = time_helper::inc_bcd( &m_hours, MASK_HOURS, 0x00, 0x23 );
+ carry = time_helper::inc_bcd(&m_hours, MASK_HOURS, 0x00, 0x23);
}
- if( carry )
+ if (carry)
{
- uint8_t maxdays;
- static const uint8_t daysinmonth[] = { 0x31, 0x28, 0x31, 0x30, 0x31, 0x30, 0x31, 0x31, 0x30, 0x31, 0x30, 0x31 };
+ u8 maxdays;
+ static const u8 daysinmonth[] = { 0x31, 0x28, 0x31, 0x30, 0x31, 0x30, 0x31, 0x31, 0x30, 0x31, 0x30, 0x31 };
- time_helper::inc_bcd( &m_day, MASK_DAY, 0x01, 0x07 );
+ time_helper::inc_bcd(&m_day, MASK_DAY, 0x01, 0x07);
- uint8_t month = time_helper::from_bcd( m_month );
- uint8_t year = time_helper::from_bcd( m_year );
+ u8 month = time_helper::from_bcd(m_month);
+ u8 year = time_helper::from_bcd(m_year);
- if( month == 2 && ( year % 4 ) == 0 )
+ if (month == 2 && (year % 4) == 0)
{
maxdays = 0x29;
}
- else if( month >= 1 && month <= 12 )
+ else if (month >= 1 && month <= 12)
{
- maxdays = daysinmonth[ month - 1 ];
+ maxdays = daysinmonth[month - 1];
}
else
{
maxdays = 0x31;
}
- carry = time_helper::inc_bcd( &m_date, MASK_DATE, 0x01, maxdays );
+ carry = time_helper::inc_bcd(&m_date, MASK_DATE, 0x01, maxdays);
}
- if( carry )
+ if (carry)
{
- carry = time_helper::inc_bcd( &m_month, MASK_MONTH, 0x01, 0x12 );
+ carry = time_helper::inc_bcd(&m_month, MASK_MONTH, 0x01, 0x12);
}
- if( carry )
+ if (carry)
{
- carry = time_helper::inc_bcd( &m_year, MASK_YEAR, 0x00, 0x99 );
+ carry = time_helper::inc_bcd(&m_year, MASK_YEAR, 0x00, 0x99);
}
- if( carry )
+ if (carry)
{
- carry = time_helper::inc_bcd( &m_century, MASK_CENTURY, 0x00, 0x99 );
+ carry = time_helper::inc_bcd(&m_century, MASK_CENTURY, 0x00, 0x99);
- if( type() == M48T35 ||
- type() == M48T58 )
+ if (type() == M48T35 ||
+ type() == M48T58)
{
- if( ( m_day & DAY_CEB ) != 0 )
+ if ((m_day & DAY_CEB) != 0)
{
m_day ^= DAY_CB;
}
}
}
- if( ( m_control & CONTROL_R ) == 0 )
+ if ((m_control & CONTROL_R) == 0)
{
counters_to_ram();
}
@@ -356,57 +350,59 @@ TIMER_CALLBACK_MEMBER(timekeeper_device::watchdog_callback)
// Set Flag
m_data[m_offset_flags] |= FLAGS_WDF;
// WDS (bit 7) selects callback
- if (m_data[m_offset_watchdog] & 0x80) {
+ if (m_data[m_offset_watchdog] & 0x80)
+ {
// Clear watchdog register
m_data[m_offset_watchdog] = 0;
m_reset_cb(ASSERT_LINE);
}
- else {
+ else
m_irq_cb(ASSERT_LINE);
- }
+
logerror("watchdog_callback: WD Control: %02x WD Flags: %02x\n", m_data[m_offset_watchdog], m_data[m_offset_flags]);
}
-WRITE8_MEMBER(timekeeper_device::watchdog_write)
+void timekeeper_device::watchdog_write(u8 data)
{
- if ((m_data[m_offset_watchdog] & 0x7f) != 0) {
+ if ((m_data[m_offset_watchdog] & 0x7f) != 0)
m_watchdog_timer->adjust(m_watchdog_delay);
- }
}
-WRITE8_MEMBER( timekeeper_device::write )
+void timekeeper_device::write(offs_t offset, u8 data)
{
LOGMASKED(LOG_GENERAL, "timekeeper_device::write: %04x = %02x\n", offset, data);
- if( offset == m_offset_control )
+ if (offset == m_offset_control)
{
- if( ( m_control & CONTROL_W ) != 0 &&
- ( data & CONTROL_W ) == 0 )
+ if ((m_control & CONTROL_W) != 0 &&
+ (data & CONTROL_W) == 0)
{
counters_from_ram();
}
- if( ( m_control & CONTROL_R ) != 0 &&
- ( data & CONTROL_W ) == 0 )
+ if ((m_control & CONTROL_R) != 0 &&
+ (data & CONTROL_W) == 0)
{
counters_to_ram();
}
m_control = data;
}
- else if( offset == m_offset_day )
+ else if (offset == m_offset_day)
{
- if( type() == M48T35 ||
- type() == M48T58 )
+ if (type() == M48T35 ||
+ type() == M48T58)
{
- m_day = ( m_day & ~DAY_CEB ) | ( data & DAY_CEB );
+ m_day = (m_day & ~DAY_CEB) | (data & DAY_CEB);
}
}
else if (offset == m_offset_watchdog && type() == M48T37)
{
- if ((data & 0x7f) == 0) {
+ if ((data & 0x7f) == 0)
+ {
m_watchdog_timer->adjust(attotime::never);
}
- else {
+ else
+ {
// Calculate the time unit
m_watchdog_delay = attotime::from_usec(62500 << (2 * (data & 0x3)));
// Adjust by multiplier
@@ -416,17 +412,17 @@ WRITE8_MEMBER( timekeeper_device::write )
}
}
- m_data[ offset ] = data;
+ m_data[offset] = data;
}
-READ8_MEMBER( timekeeper_device::read )
+u8 timekeeper_device::read(offs_t offset)
{
- uint8_t result = m_data[ offset ];
- if( offset == m_offset_date && type() == M48T58 )
+ u8 result = m_data[offset];
+ if (offset == m_offset_date && type() == M48T58)
{
result &= ~DATE_BL;
}
- else if( offset == m_offset_flags && type() == M48T37 )
+ else if (offset == m_offset_flags && type() == M48T37)
{
// Clear the watchdog flag
m_data[m_offset_flags] &= ~FLAGS_WDF;
@@ -447,15 +443,15 @@ void timekeeper_device::nvram_default()
{
if (m_default_data.found())
{
- memcpy( &m_data[0], m_default_data, m_size );
+ memcpy(&m_data[0], m_default_data, m_size);
}
else
{
- memset( &m_data[0], 0xff, m_data.size());
+ memset(&m_data[0], 0xff, m_data.size());
}
- if ( m_offset_flags >= 0 )
- m_data[ m_offset_flags ] = 0;
+ if (m_offset_flags >= 0)
+ m_data[m_offset_flags] = 0;
counters_to_ram();
}
@@ -467,7 +463,7 @@ void timekeeper_device::nvram_default()
void timekeeper_device::nvram_read(emu_file &file)
{
- file.read( &m_data[0], m_size );
+ file.read(&m_data[0], m_size);
counters_to_ram();
}
@@ -480,5 +476,5 @@ void timekeeper_device::nvram_read(emu_file &file)
void timekeeper_device::nvram_write(emu_file &file)
{
- file.write( &m_data[0], m_size );
+ file.write(&m_data[0], m_size);
}