// license:BSD-3-Clause // copyright-holders:Aaron Giles /*************************************************************************** Sega Outrun hardware ***************************************************************************/ #include "cpu/m68000/m68000.h" #include "cpu/z80/z80.h" #include "machine/i8255.h" #include "machine/nvram.h" #include "machine/segaic16.h" #include "machine/timer.h" #include "machine/watchdog.h" #include "video/segaic16.h" #include "video/segaic16_road.h" #include "video/sega16sp.h" // ======================> segaorun_state class segaorun_state : public sega_16bit_common_base { public: // construction/destruction segaorun_state(const machine_config &mconfig, device_type type, const char *tag) : sega_16bit_common_base(mconfig, type, tag), m_mapper(*this, "mapper"), m_maincpu(*this, "maincpu"), m_subcpu(*this, "subcpu"), m_soundcpu(*this, "soundcpu"), m_i8255(*this, "i8255"), m_nvram(*this, "nvram"), m_watchdog(*this, "watchdog"), m_sprites(*this, "sprites"), m_segaic16vid(*this, "segaic16vid"), m_segaic16road(*this, "segaic16road"), m_bankmotor_timer(*this, "bankmotor"), m_digital_ports(*this, { { "SERVICE", "UNKNOWN", "COINAGE", "DSW" } }), m_adc_ports(*this, "ADC.%u", 0), m_workram(*this, "workram"), m_custom_map(nullptr), m_shangon_video(false), m_scanline_timer(nullptr), m_irq2_state(0), m_adc_select(0), m_vblank_irq_state(0), m_bankmotor_pos(0x8000), m_bankmotor_delta(0) { } // PPI read/write handlers DECLARE_READ8_MEMBER( unknown_porta_r ); DECLARE_READ8_MEMBER( unknown_portb_r ); DECLARE_READ8_MEMBER( unknown_portc_r ); DECLARE_WRITE8_MEMBER( unknown_porta_w ); DECLARE_WRITE8_MEMBER( unknown_portb_w ); DECLARE_WRITE8_MEMBER( video_control_w ); DECLARE_READ8_MEMBER( bankmotor_limit_r ); DECLARE_WRITE8_MEMBER( bankmotor_control_w ); // memory mapping void memory_mapper(sega_315_5195_mapper_device &mapper, uint8_t index); // main CPU read/write handlers DECLARE_READ16_MEMBER( misc_io_r ); DECLARE_WRITE16_MEMBER( misc_io_w ); DECLARE_WRITE16_MEMBER( nop_w ); // game-specific driver init void init_generic(); void init_outrun(); void init_outrunb(); void init_shangon(); // video updates uint32_t screen_update_outrun(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint32_t screen_update_shangon(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_WRITE16_MEMBER( tileram_w ) { m_segaic16vid->tileram_w(space,offset,data,mem_mask); }; DECLARE_WRITE16_MEMBER( textram_w ) { m_segaic16vid->textram_w(space,offset,data,mem_mask); }; DECLARE_READ16_MEMBER( sega_road_control_0_r ) { return m_segaic16road->segaic16_road_control_0_r(space,offset,mem_mask); }; DECLARE_WRITE16_MEMBER( sega_road_control_0_w ) { m_segaic16road->segaic16_road_control_0_w(space,offset,data,mem_mask); }; CUSTOM_INPUT_MEMBER( bankmotor_pos_r ); TIMER_DEVICE_CALLBACK_MEMBER(bankmotor_update); void shangon_fd1089b(machine_config &config); void outrun_fd1094(machine_config &config); void outrundx(machine_config &config); void shangon(machine_config &config); void outrun_fd1089a(machine_config &config); void outrun(machine_config &config); void outrun_base(machine_config &config); void decrypted_opcodes_map(address_map &map); void outrun_map(address_map &map); void sound_map(address_map &map); void sound_portmap(address_map &map); void sub_map(address_map &map); protected: // timer IDs enum { TID_SCANLINE, TID_IRQ2_GEN, TID_SOUND_WRITE }; // device overrides virtual void machine_reset() override; virtual void video_start() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; // internal helpers void update_main_irqs(); DECLARE_WRITE_LINE_MEMBER(m68k_reset_callback); // custom I/O DECLARE_READ16_MEMBER( outrun_custom_io_r ); DECLARE_WRITE16_MEMBER( outrun_custom_io_w ); DECLARE_READ16_MEMBER( shangon_custom_io_r ); DECLARE_WRITE16_MEMBER( shangon_custom_io_w ); // devices required_device m_mapper; required_device m_maincpu; required_device m_subcpu; required_device m_soundcpu; required_device m_i8255; optional_device m_nvram; required_device m_watchdog; required_device m_sprites; required_device m_segaic16vid; required_device m_segaic16road; optional_device m_bankmotor_timer; // input ports required_ioport_array<4> m_digital_ports; optional_ioport_array<8> m_adc_ports; // memory required_shared_ptr m_workram; // configuration read16_delegate m_custom_io_r; write16_delegate m_custom_io_w; const uint8_t * m_custom_map; bool m_shangon_video; // internal state emu_timer * m_scanline_timer; emu_timer * m_irq2_gen_timer; uint8_t m_irq2_state; uint8_t m_adc_select; uint8_t m_vblank_irq_state; int m_bankmotor_pos; int m_bankmotor_delta; };