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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
Sega System Hang On hardware
***************************************************************************/
#include "cpu/m68000/m68000.h"
#include "cpu/mcs51/mcs51.h"
#include "cpu/z80/z80.h"
#include "machine/i8255.h"
#include "machine/segaic16.h"
#include "video/segaic16.h"
#include "video/segaic16_road.h"
#include "video/sega16sp.h"
// ======================> segahang_state
class segahang_state : public sega_16bit_common_base
{
public:
// construction/destruction
segahang_state(const machine_config &mconfig, device_type type, const char *tag)
: sega_16bit_common_base(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "subcpu"),
m_soundcpu(*this, "soundcpu"),
m_mcu(*this, "mcu"),
m_i8255_1(*this, "i8255_1"),
m_i8255_2(*this, "i8255_2"),
m_sprites(*this, "sprites"),
m_segaic16vid(*this, "segaic16vid"),
m_segaic16road(*this, "segaic16road"),
m_workram(*this, "workram"),
m_sharrier_video(false),
m_adc_select(0),
m_decrypted_opcodes(*this, "decrypted_opcodes")
{ }
// PPI read/write callbacks
DECLARE_WRITE8_MEMBER( video_lamps_w );
DECLARE_WRITE8_MEMBER( tilemap_sound_w );
DECLARE_WRITE8_MEMBER( sub_control_adc_w );
DECLARE_READ8_MEMBER( adc_status_r );
// main CPU read/write handlers
DECLARE_READ16_MEMBER( hangon_io_r );
DECLARE_WRITE16_MEMBER( hangon_io_w );
DECLARE_READ16_MEMBER( sharrier_io_r );
DECLARE_WRITE16_MEMBER( sharrier_io_w );
// Z80 sound CPU read/write handlers
DECLARE_READ8_MEMBER( sound_data_r );
DECLARE_WRITE_LINE_MEMBER( sound_irq );
// I8751-related VBLANK interrupt hanlders
INTERRUPT_GEN_MEMBER( i8751_main_cpu_vblank );
// game-specific driver init
DECLARE_DRIVER_INIT(generic);
DECLARE_DRIVER_INIT(sharrier);
DECLARE_DRIVER_INIT(enduror);
DECLARE_DRIVER_INIT(endurobl);
DECLARE_DRIVER_INIT(endurob2);
// video updates
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// internal types
typedef delegate<void ()> i8751_sim_delegate;
// timer IDs
enum
{
TID_INIT_I8751,
TID_PPI_WRITE
};
// driver overrides
virtual void video_start() override;
virtual void machine_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// I8751 simulations
void sharrier_i8751_sim();
// devices
required_device<m68000_device> m_maincpu;
required_device<m68000_device> m_subcpu;
required_device<z80_device> m_soundcpu;
optional_device<i8751_device> m_mcu;
required_device<i8255_device> m_i8255_1;
required_device<i8255_device> m_i8255_2;
required_device<sega_16bit_sprite_device> m_sprites;
required_device<segaic16_video_device> m_segaic16vid;
required_device<segaic16_road_device> m_segaic16road;
// memory pointers
required_shared_ptr<UINT16> m_workram;
// configuration
bool m_sharrier_video;
i8751_sim_delegate m_i8751_vblank_hook;
// internal state
UINT8 m_adc_select;
bool m_shadow;
optional_shared_ptr<UINT16> m_decrypted_opcodes;
};
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