class system1_state : public driver_device { public: system1_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) { } UINT8 *m_videoram; void (*m_videomode_custom)(running_machine &machine, UINT8 data, UINT8 prevdata); UINT8 m_mute_xor; UINT8 *m_ram; UINT8 m_dakkochn_mux_data; UINT8 m_videomode_prev; UINT8 m_mcu_control; UINT8 *m_nob_mcu_status; UINT8 *m_nob_mcu_latch; UINT8 m_nob_maincpu_latch; int m_nobb_inport23_step; UINT8 *m_mix_collide; UINT8 m_mix_collide_summary; UINT8 *m_sprite_collide; UINT8 m_sprite_collide_summary; bitmap_t *m_sprite_bitmap; UINT8 m_video_mode; UINT8 m_videoram_bank; tilemap_t *m_tilemap_page[8]; UINT8 m_tilemap_pages; UINT8 *m_spriteram; }; /*----------- defined in video/system1.c -----------*/ VIDEO_START( system1 ); VIDEO_START( system2 ); WRITE8_HANDLER( system1_videomode_w ); WRITE8_HANDLER( system1_paletteram_w ); READ8_HANDLER( system1_videoram_r ); WRITE8_HANDLER( system1_videoram_w ); WRITE8_DEVICE_HANDLER( system1_videoram_bank_w ); READ8_HANDLER( system1_mixer_collision_r ); WRITE8_HANDLER( system1_mixer_collision_w ); WRITE8_HANDLER( system1_mixer_collision_reset_w ); READ8_HANDLER( system1_sprite_collision_r ); WRITE8_HANDLER( system1_sprite_collision_w ); WRITE8_HANDLER( system1_sprite_collision_reset_w ); SCREEN_UPDATE( system1 ); SCREEN_UPDATE( system2 ); SCREEN_UPDATE( system2_rowscroll );