// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* Data East Pinball CPU boards
*
* Created on: 10/07/2013
*/
#ifndef MAME_MACHINE_DECOPINCPU_H
#define MAME_MACHINE_DECOPINCPU_H
#pragma once
#include "cpu/m6800/m6800.h"
#include "machine/6821pia.h"
#include "machine/nvram.h"
// 6808 CPU's input clock is 4MHz
// but because it has an internal /4 divider, its E clock runs at 1/4 that frequency
#define E_CLOCK (XTAL(4'000'000)/4)
// Length of time in cycles between IRQs on the main 6808 CPU
// This length is determined by the settings of the W14 and W15 jumpers
// It can be 0x300, 0x380, 0x700 or 0x780 cycles long.
// IRQ length is always 32 cycles
#define S11_IRQ_CYCLES 0x380
class decocpu_type1_device : public device_t
{
public:
template <typename T>
decocpu_type1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpuregion_tag)
: decocpu_type1_device(mconfig, tag, owner, clock)
{
set_cpuregion(std::forward<T>(cpuregion_tag));
}
decocpu_type1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// callbacks
auto display_read_callback() { return m_read_display.bind(); }
auto display_write_callback() { return m_write_display.bind(); }
auto dmdstatus_read_callback() { return m_read_dmdstatus.bind(); }
auto soundlatch_write_callback() { return m_write_soundlatch.bind(); }
auto switch_read_callback() { return m_read_switch.bind(); }
auto switch_write_callback() { return m_write_switch.bind(); }
auto lamp_write_callback() { return m_write_lamp.bind(); }
auto solenoid_write_callback() { return m_write_solenoid.bind(); }
DECLARE_WRITE8_MEMBER(solenoid2_w);
INPUT_CHANGED_MEMBER(main_nmi);
INPUT_CHANGED_MEMBER(audio_nmi);
template <typename T> void set_cpuregion(T &&tag) { m_rom.set_tag(std::forward<T>(tag)); } // region for cpu board code and data
protected:
static constexpr device_timer_id TIMER_IRQ = 0;
decocpu_type1_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
void decocpu1_map(address_map &map);
required_device<cpu_device> m_cpu;
required_device<pia6821_device> m_pia21;
required_device<pia6821_device> m_pia24;
required_device<pia6821_device> m_pia28;
required_device<pia6821_device> m_pia2c;
required_device<pia6821_device> m_pia30;
required_device<pia6821_device> m_pia34;
required_region_ptr<uint8_t> m_rom;
private:
emu_timer* m_irq_timer;
bool m_irq_active;
bool m_ca2;
// callbacks
devcb_read8 m_read_display;
devcb_write8 m_write_display;
devcb_read8 m_read_dmdstatus;
devcb_write8 m_write_soundlatch;
devcb_read8 m_read_switch;
devcb_write8 m_write_switch;
devcb_write8 m_write_lamp;
devcb_write8 m_write_solenoid;
DECLARE_WRITE_LINE_MEMBER(cpu_pia_irq);
DECLARE_WRITE_LINE_MEMBER(pia21_ca2_w);
DECLARE_WRITE8_MEMBER(lamp0_w);
DECLARE_WRITE8_MEMBER(lamp1_w);
DECLARE_READ8_MEMBER(display_strobe_r);
DECLARE_WRITE8_MEMBER(display_strobe_w);
DECLARE_WRITE8_MEMBER(display_out1_w);
DECLARE_WRITE8_MEMBER(display_out2_w);
DECLARE_WRITE8_MEMBER(display_out3_w);
DECLARE_WRITE8_MEMBER(display_out4_w);
DECLARE_READ8_MEMBER(display_in3_r);
DECLARE_WRITE8_MEMBER(switch_w);
DECLARE_READ8_MEMBER(switch_r);
DECLARE_READ8_MEMBER(dmdstatus_r);
DECLARE_WRITE8_MEMBER(sound_w);
DECLARE_WRITE8_MEMBER(solenoid1_w);
};
class decocpu_type2_device : public decocpu_type1_device
{
public:
template <typename T>
decocpu_type2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpuregion_tag)
: decocpu_type2_device(mconfig, tag, owner, clock)
{
set_cpuregion(std::forward<T>(cpuregion_tag));
}
decocpu_type2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void decocpu2_map(address_map &map);
protected:
decocpu_type2_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
};
class decocpu_type3_device : public decocpu_type2_device
{
public:
template <typename T>
decocpu_type3_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpuregion_tag)
: decocpu_type3_device(mconfig, tag, owner, clock)
{
set_cpuregion(std::forward<T>(cpuregion_tag));
}
decocpu_type3_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
decocpu_type3_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// overrides
virtual void device_start() override;
};
class decocpu_type3b_device : public decocpu_type3_device
{
public:
template <typename T>
decocpu_type3b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpuregion_tag)
: decocpu_type3b_device(mconfig, tag, owner, clock)
{
set_cpuregion(std::forward<T>(cpuregion_tag));
}
decocpu_type3b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// overrides
virtual void device_start() override;
};
DECLARE_DEVICE_TYPE(DECOCPU1, decocpu_type1_device)
DECLARE_DEVICE_TYPE(DECOCPU2, decocpu_type2_device)
DECLARE_DEVICE_TYPE(DECOCPU3, decocpu_type3_device)
DECLARE_DEVICE_TYPE(DECOCPU3B, decocpu_type3b_device)
#endif // MAME_MACHINE_DECOPINCPU_H