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/***************************************************************************
Espial hardware games (drivers: espial.c)
***************************************************************************/
class espial_state : public driver_device
{
public:
espial_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_attributeram(*this, "attributeram"),
m_scrollram(*this, "scrollram"),
m_spriteram_1(*this, "spriteram_1"),
m_spriteram_2(*this, "spriteram_2"),
m_spriteram_3(*this, "spriteram_3"),
m_colorram(*this, "colorram"),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_gfxdecode(*this, "gfxdecode") { }
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_attributeram;
required_shared_ptr<UINT8> m_scrollram;
required_shared_ptr<UINT8> m_spriteram_1;
required_shared_ptr<UINT8> m_spriteram_2;
required_shared_ptr<UINT8> m_spriteram_3;
required_shared_ptr<UINT8> m_colorram;
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
int m_flipscreen;
/* sound-related */
UINT8 m_main_nmi_enabled;
UINT8 m_sound_nmi_enabled;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<gfxdecode_device> m_gfxdecode;
DECLARE_WRITE8_MEMBER(espial_master_interrupt_mask_w);
DECLARE_WRITE8_MEMBER(espial_master_soundlatch_w);
DECLARE_WRITE8_MEMBER(espial_sound_nmi_mask_w);
DECLARE_WRITE8_MEMBER(espial_videoram_w);
DECLARE_WRITE8_MEMBER(espial_colorram_w);
DECLARE_WRITE8_MEMBER(espial_attributeram_w);
DECLARE_WRITE8_MEMBER(espial_scrollram_w);
DECLARE_WRITE8_MEMBER(espial_flipscreen_w);
TILE_GET_INFO_MEMBER(get_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
DECLARE_PALETTE_INIT(espial);
DECLARE_VIDEO_START(netwars);
UINT32 screen_update_espial(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(espial_sound_nmi_gen);
TIMER_DEVICE_CALLBACK_MEMBER(espial_scanline);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
};
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