Previous 199869 Revisions Next

r19470 Tuesday 11th December, 2012 at 11:57:05 UTC by Nathan Woods
[MSM6242] Changing to be based on dirtc.h
[src/emu/machine]msm6242.c msm6242.h

trunk/src/emu/machine/msm6242.c
r19469r19470
6060//-------------------------------------------------
6161
6262msm6242_device::msm6242_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
63   : device_t(mconfig, msm6242, "msm6242", tag, owner, clock)
63   : device_t(mconfig, msm6242, "msm6242", tag, owner, clock),
64     device_rtc_interface(mconfig, *this)
6465{
6566
6667}
r19469r19470
8687
8788   if(m_tick & 0x8000) // 32,768 KHz == 0x8000 ticks
8889   {
90      int sec = get_clock_register(RTC_SECOND);
91      int minute = get_clock_register(RTC_MINUTE);
92      int hour = get_clock_register(RTC_HOUR);
93      int day = get_clock_register(RTC_DAY);
94      int month = get_clock_register(RTC_MONTH);
95      int weekday = get_clock_register(RTC_DAY_OF_WEEK);
96      int year = get_clock_register(RTC_YEAR);
97
8998      m_tick = 0;
90      m_rtc.sec++;
99      sec++;
91100
92101      if(m_irq_flag == 1 && m_irq_type == 1) // 1 second clock
93102         if ( !m_res_out_int_func.isnull() )
94103            m_res_out_int_func(ASSERT_LINE);
95104
96      if(m_rtc.sec >= 60)
105      if(sec >= 60)
97106      {
98         m_rtc.min++; m_rtc.sec = 0;
107         minute++; sec = 0;
99108         if(m_irq_flag == 1 && m_irq_type == 2) // 1 minute clock
100109            if ( !m_res_out_int_func.isnull() )
101110               m_res_out_int_func(ASSERT_LINE);
102111      }
103      if(m_rtc.min >= 60)
112      if(minute >= 60)
104113      {
105         m_rtc.hour++; m_rtc.min = 0;
114         hour++; minute = 0;
106115         if(m_irq_flag == 1 && m_irq_type == 3) // 1 hour clock
107116            if ( !m_res_out_int_func.isnull() )
108117               m_res_out_int_func(ASSERT_LINE);
109118      }
110      if(m_rtc.hour >= 24)         { m_rtc.day++; m_rtc.wday++; m_rtc.hour = 0; }
111      if(m_rtc.wday >= 6)            { m_rtc.wday = 1; }
119      if(hour >= 24)         { day++; weekday++; hour = 0; }
120      if(weekday >= 6)            { weekday = 1; }
112121
113122      /* TODO: crude leap year support */
114      dpm_count = (m_rtc.month)-1;
123      dpm_count = (month)-1;
115124
116      if(((m_rtc.year % 4) == 0) && m_rtc.month == 2)
125      if(((year % 4) == 0) && month == 2)
117126      {
118         if((m_rtc.day) >= dpm[dpm_count]+1+1)
119            { m_rtc.month++; m_rtc.day = 0x01; }
127         if((day) >= dpm[dpm_count]+1+1)
128            { month++; day = 0x01; }
120129      }
121      else if(m_rtc.day >= dpm[dpm_count]+1)      { m_rtc.month++; m_rtc.day = 0x01; }
122      if(m_rtc.month >= 0x13)                  { m_rtc.year++; m_rtc.month = 1; }
123      if(m_rtc.year >= 100)                  { m_rtc.year = 0; } //1900-1999 possible timeframe
130      else if(day >= dpm[dpm_count]+1)      { month++; day = 0x01; }
131      if(month >= 0x13)                  { year++; month = 1; }
132      if(year >= 100)                  { year = 0; } //1900-1999 possible timeframe
133
134      set_clock_register(RTC_SECOND, sec);
135      set_clock_register(RTC_MINUTE, minute);
136      set_clock_register(RTC_HOUR, hour);
137      set_clock_register(RTC_DAY, day);
138      set_clock_register(RTC_MONTH, month);
139      set_clock_register(RTC_DAY_OF_WEEK, weekday);
140      set_clock_register(RTC_YEAR, year);
124141   }
125142}
126143
r19469r19470
157174   m_timer->adjust(attotime::zero, 0, attotime::from_hz(clock()));
158175
159176   // get real time from system
160   system_time systime;
161   machine().base_datetime(systime);
177   set_current_time(machine());
162178
163   // ...and set the RTC time
164   m_rtc.day = (systime.local_time.mday);
165   m_rtc.month = (systime.local_time.month+1);
166   m_rtc.wday = (systime.local_time.weekday);
167   m_rtc.year = (systime.local_time.year % 100);
168   m_rtc.hour = (systime.local_time.hour);
169   m_rtc.min = (systime.local_time.minute);
170   m_rtc.sec = (systime.local_time.second);
179   // set up registers
171180   m_tick = 0;
172181   m_irq_flag = 0;
173182   m_irq_type = 0;
r19469r19470
182191   save_item(NAME(m_irq_flag));
183192   save_item(NAME(m_irq_type));
184193   save_item(NAME(m_tick));
185   save_item(NAME(m_rtc.sec));
186   save_item(NAME(m_rtc.min));
187   save_item(NAME(m_rtc.hour));
188   save_item(NAME(m_rtc.wday));
189   save_item(NAME(m_rtc.day));
190   save_item(NAME(m_rtc.month));
191   save_item(NAME(m_rtc.year));
192194}
193195
194196
r19469r19470
215217
216218READ8_MEMBER( msm6242_device::read )
217219{
218   rtc_regs_t cur_time;
220   int sec = get_clock_register(RTC_SECOND);
221   int minute = get_clock_register(RTC_MINUTE);
222   int hour = get_clock_register(RTC_HOUR);
223   int day = get_clock_register(RTC_DAY);
224   int month = get_clock_register(RTC_MONTH);
225   int weekday = get_clock_register(RTC_DAY_OF_WEEK);
226   int year = get_clock_register(RTC_YEAR);
219227
220   cur_time = m_rtc;
221
222228   switch(offset)
223229   {
224      case MSM6242_REG_S1: return (cur_time.sec % 10) & 0xf;
225      case MSM6242_REG_S10: return (cur_time.sec / 10) & 0xf;
226      case MSM6242_REG_MI1: return (cur_time.min % 10) & 0xf;
227      case MSM6242_REG_MI10: return (cur_time.min / 10) & 0xf;
230      case MSM6242_REG_S1: return (sec % 10) & 0xf;
231      case MSM6242_REG_S10: return (sec / 10) & 0xf;
232      case MSM6242_REG_MI1: return (minute % 10) & 0xf;
233      case MSM6242_REG_MI10: return (minute / 10) & 0xf;
228234      case MSM6242_REG_H1:
229235      case MSM6242_REG_H10:
230236      {
231         int   hour = cur_time.hour;
232237         int pm = 0;
233238
234239         /* check for 12/24 hour mode */
r19469r19470
249254         return (hour / 10) | (pm <<2);
250255      }
251256
252      case MSM6242_REG_D1: return (cur_time.day % 10) & 0xf;
253      case MSM6242_REG_D10: return (cur_time.day / 10) & 0xf;
254      case MSM6242_REG_MO1: return (cur_time .month % 10) & 0xf;
255      case MSM6242_REG_MO10: return (cur_time.month / 10) & 0xf;
256      case MSM6242_REG_Y1: return (cur_time.year % 10) & 0xf;
257      case MSM6242_REG_Y10: return ((cur_time.year / 10) % 10) & 0xf;
258      case MSM6242_REG_W: return cur_time.wday;
257      case MSM6242_REG_D1: return (day % 10) & 0xf;
258      case MSM6242_REG_D10: return (day / 10) & 0xf;
259      case MSM6242_REG_MO1: return (month % 10) & 0xf;
260      case MSM6242_REG_MO10: return (month / 10) & 0xf;
261      case MSM6242_REG_Y1: return (year % 10) & 0xf;
262      case MSM6242_REG_Y10: return ((year / 10) % 10) & 0xf;
263      case MSM6242_REG_W: return weekday;
259264      case MSM6242_REG_CD: return m_reg[0];
260265      case MSM6242_REG_CE: return m_reg[1];
261266      case MSM6242_REG_CF: return m_reg[2];
trunk/src/emu/machine/msm6242.h
r19469r19470
1313#define __MSM6242DEV_H__
1414
1515#include "emu.h"
16#include "dirtc.h"
1617
1718
1819#define MCFG_MSM6242_ADD(_tag, _config) \
r19469r19470
2930   devcb_write_line   m_out_int_func;
3031};
3132
32struct rtc_regs_t
33{
34   UINT8 sec, min, hour, day, wday, month;
35   UINT16 year;
36};
3733
38
3934// ======================> msm6242_device
4035
41class msm6242_device :   public device_t
36class msm6242_device :   public device_t, public device_rtc_interface
4237{
4338public:
4439   // construction/destruction
r19469r19470
6055   UINT8                  m_irq_flag;
6156   UINT8                  m_irq_type;
6257   UINT16                  m_tick;
63   rtc_regs_t               m_rtc;
6458
6559   // incidentals
6660   devcb_resolved_write_line   m_res_out_int_func;

Previous 199869 Revisions Next

© 1997-2024 The MAME Team