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diff --git a/trunk/src/emu/machine/msm58321.h b/trunk/src/emu/machine/msm58321.h
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+/**********************************************************************
+
+ OKI MSM58321RS Real Time Clock/Calendar emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************
+ _____ _____
+ CS2 1 |* \_/ | 16 Vdd
+ WRITE 2 | | 15 XT
+ READ 3 | | 14 _XT
+ D0 4 | MSM58321 | 13 CS1
+ D1 5 | RTC58321 | 12 TEST
+ D2 6 | | 11 STOP
+ D3 7 | | 10 _BUSY
+ GND 8 |_____________| 9 ADDRESS WRITE
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __MSM58321__
+#define __MSM58321__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_MSM58321_ADD(_tag, _clock, _config) \
+ MCFG_DEVICE_ADD(_tag, MSM58321, _clock) \
+ MCFG_DEVICE_CONFIG(_config)
+
+#define MSM58321_INTERFACE(name) \
+ const msm58321_interface (name) =
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> msm58321_interface
+
+struct msm58321_interface
+{
+ devcb_write_line m_out_busy_cb;
+};
+
+
+
+// ======================> msm58321_device
+
+class msm58321_device : public device_t,
+ public device_rtc_interface,
+ public msm58321_interface
+{
+public:
+ // construction/destruction
+ msm58321_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_READ8_MEMBER( read );
+ DECLARE_WRITE8_MEMBER( write );
+
+ DECLARE_WRITE_LINE_MEMBER( cs1_w );
+ DECLARE_WRITE_LINE_MEMBER( cs2_w );
+ DECLARE_WRITE_LINE_MEMBER( read_w );
+ DECLARE_WRITE_LINE_MEMBER( write_w );
+ DECLARE_WRITE_LINE_MEMBER( address_write_w );
+ DECLARE_WRITE_LINE_MEMBER( stop_w );
+ DECLARE_WRITE_LINE_MEMBER( test_w );
+ DECLARE_READ_LINE_MEMBER( busy_r );
+
+protected:
+ // device-level overrides
+ virtual void device_config_complete();
+ virtual void device_start();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+
+ // device_rtc_interface overrides
+ virtual void rtc_set_time(int year, int month, int day, int day_of_week, int hour, int minute, int second);
+ virtual bool rtc_is_year_2000_compliant() { return false; }
+
+private:
+ static const device_timer_id TIMER_CLOCK = 0;
+ static const device_timer_id TIMER_BUSY = 1;
+
+ inline int read_counter(int counter);
+ inline void write_counter(int counter, int value);
+ inline void advance_seconds();
+ inline void advance_minutes();
+
+ devcb_resolved_write_line m_out_busy_func;
+
+ int m_cs1; // chip select 1
+ int m_cs2; // chip select 2
+ int m_busy; // busy flag
+ int m_read; // read data
+ int m_write; // write data
+ int m_address_write; // write address
+
+ UINT8 m_reg[13]; // registers
+ UINT8 m_latch; // data latch (not present in real chip)
+ UINT8 m_address; // address latch
+
+ // timers
+ emu_timer *m_clock_timer;
+ emu_timer *m_busy_timer;
+};
+
+
+// device type definition
+extern const device_type MSM58321;
+
+
+
+#endif