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/*************************************************************************
Gangbusters
*************************************************************************/
class gbusters_state : public driver_device
{
public:
gbusters_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_ram(*this, "ram"){ }
/* memory pointers */
required_shared_ptr<UINT8> m_ram;
/* video-related */
int m_layer_colorbase[3];
int m_sprite_colorbase;
/* misc */
int m_palette_selected;
int m_priority;
/* devices */
cpu_device *m_maincpu;
cpu_device *m_audiocpu;
device_t *m_k007232;
device_t *m_k052109;
device_t *m_k051960;
DECLARE_READ8_MEMBER(bankedram_r);
DECLARE_WRITE8_MEMBER(bankedram_w);
DECLARE_WRITE8_MEMBER(gbusters_1f98_w);
DECLARE_WRITE8_MEMBER(gbusters_coin_counter_w);
DECLARE_WRITE8_MEMBER(gbusters_unknown_w);
DECLARE_WRITE8_MEMBER(gbusters_sh_irqtrigger_w);
DECLARE_READ8_MEMBER(k052109_051960_r);
DECLARE_WRITE8_MEMBER(k052109_051960_w);
DECLARE_WRITE8_MEMBER(gbusters_snd_bankswitch_w);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
UINT32 screen_update_gbusters(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
/*----------- defined in video/gbusters.c -----------*/
extern void gbusters_tile_callback(running_machine &machine, int layer,int bank,int *code,int *color,int *flags, int *priority);
extern void gbusters_sprite_callback(running_machine &machine, int *code,int *color,int *priority,int *shadow);
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