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hp9845: re-implemented the 98035 RTC module at a low-level as I have the

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firmware now
This commit is contained in:
fulivi 2016-11-02 16:09:54 +01:00
parent 4e722d69c8
commit 1142f020e9
2 changed files with 569 additions and 613 deletions
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1059
src/devices/bus/hp9845_io/98035.cpp
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123
src/devices/bus/hp9845_io/98035.h
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@ -14,12 +14,11 @@
#define _98035_H_
#include "hp9845_io.h"
#include "cpu/nanoprocessor/nanoprocessor.h"
#include "dirtc.h"
#define HP98035_IBUFFER_LEN 16 // Totally arbitrary
#define HP98035_OBUFFER_LEN 16 // Totally arbitrary
#define HP98035_UNIT_COUNT 4 // Count of counter/timer units
class hp98035_io_card : public hp9845_io_card_device
class hp98035_io_card : public hp9845_io_card_device,
public device_rtc_interface
{
public:
// construction/destruction
@ -31,11 +30,48 @@ public:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual const tiny_rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
DECLARE_READ16_MEMBER(reg_r);
DECLARE_WRITE16_MEMBER(reg_w);
DECLARE_WRITE8_MEMBER(ram_addr_w);
DECLARE_READ8_MEMBER(ram_data_r);
DECLARE_WRITE8_MEMBER(ram_addr_data_w);
DECLARE_WRITE8_MEMBER(ram_data_w);
DECLARE_WRITE8_MEMBER(clock_key_w);
DECLARE_READ8_MEMBER(clock_digit_r);
DECLARE_WRITE8_MEMBER(odr_w);
DECLARE_READ8_MEMBER(idr_r);
DECLARE_READ8_MEMBER(np_status_r);
DECLARE_WRITE8_MEMBER(clear_np_irq_w);
DECLARE_READ8_MEMBER(clock_mux_r);
DECLARE_WRITE8_MEMBER(set_irq_w);
DECLARE_READ8_MEMBER(clr_inten_r);
DECLARE_WRITE8_MEMBER(clr_inten_w);
DECLARE_WRITE8_MEMBER(dc_w);
private:
required_device<hp_nanoprocessor_device> m_cpu;
// Internal RAM & I/F
uint8_t m_np_ram[ 256 ];
uint8_t m_ram_addr;
uint8_t m_ram_data_in;
// DC lines
uint8_t m_dc;
// NP interrupt
bool m_np_irq;
// Periodic interrupt
emu_timer *m_msec_timer;
// Interface state
bool m_flg;
bool m_inten;
@ -44,63 +80,40 @@ private:
bool m_idr_full;
uint8_t m_idr; // Input Data Register
uint8_t m_odr; // Output Data Register
uint8_t m_error;
uint8_t m_triggered;
uint8_t m_lost_irq;
uint8_t m_ibuffer[ HP98035_IBUFFER_LEN + 1 ];
unsigned m_ibuffer_ptr;
uint8_t m_obuffer[ HP98035_OBUFFER_LEN ];
unsigned m_obuffer_len;
unsigned m_obuffer_ptr;
// Clock/timer state
unsigned m_msec; // Milliseconds
uint8_t m_sec; // Seconds
uint8_t m_min; // Minutes
uint8_t m_hrs; // Hours
uint8_t m_dom; // Day of month
uint8_t m_mon; // Month
// Strangely enough this RTC has no notion of current year
emu_timer *m_msec_timer;
// Timer units
// Clock chip emulation
typedef enum {
UNIT_IDLE, // Not active
UNIT_ACTIVE, // Active (output units: waiting for date/time match)
UNIT_WAIT_FOR_TO // Active, output units only: waiting for timeout
} unit_state_t;
CLOCK_OFF, // Display OFF
CLOCK_HHMM, // Show HH:mm
CLOCK_SS, // Show :SS
CLOCK_HH, // Show HH: A/P
CLOCK_MIN, // Show :mm
CLOCK_MON, // Show MM:
CLOCK_DOM, // Show :DD
} clock_state_t;
typedef struct {
unit_state_t m_state; // State
bool m_input; // Input or output
uint8_t m_port; // Assigned port # (0 if not assigned)
uint8_t m_match_datetime[ 4 ]; // Date&time to match (month is not included)
unsigned m_delay; // Timer delay
unsigned m_period; // Timer period (when != 0)
unsigned m_value; // Current counter value
void init(void);
void deactivate(void);
void adv_state(bool reset = false);
} timer_unit_t;
timer_unit_t m_units[ HP98035_UNIT_COUNT ];
emu_timer *m_clock_timer;
unsigned m_clock_1s_div;
clock_state_t m_clock_state;
uint8_t m_clock_digits[ 3 ];
uint8_t m_clock_mux;
bool m_clock_segh;
uint8_t m_clock_keys;
uint8_t m_prev_clock_keys;
unsigned m_clock_key_cnt;
void half_init(void);
void set_flg(bool value);
void update_irq(void);
void update_ibuffer(void);
void process_ibuffer(void);
bool assign_unit(timer_unit_t& unit , const uint8_t*& p , bool input);
bool parse_unit_command(const uint8_t*& p, unsigned unit_no);
void clear_obuffer(void);
void set_obuffer(uint8_t b);
void set_obuffer(const char* s);
void update_obuffer(void);
void set_error(uint8_t mask);
bool parse_datetime(const uint8_t*& p, uint8_t *out) const;
bool parse_unit_no(const uint8_t*& p, unsigned& unit) const;
bool parse_msec(const uint8_t*& p, unsigned& msec) const;
void update_dc(void);
void set_lhs_digits(unsigned v);
void set_rhs_digits(unsigned v);
void regen_clock_image(void);
void clock_short_press(void);
void clock_long_press(void);
void log_current_time(void);
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
};
// device type definition