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/*************************************************************************
Express Raider
*************************************************************************/
class exprraid_state : public driver_device
{
public:
exprraid_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
/* memory pointers */
UINT8 * m_main_ram;
UINT8 * m_videoram;
UINT8 * m_colorram;
UINT8 * m_spriteram;
size_t m_spriteram_size;
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
int m_bg_index[4];
/* misc */
//int m_coin; // used in the commented out INTERRUPT_GEN - can this be removed?
/* devices */
device_t *m_maincpu;
device_t *m_slave;
};
/*----------- defined in video/exprraid.c -----------*/
extern WRITE8_HANDLER( exprraid_videoram_w );
extern WRITE8_HANDLER( exprraid_colorram_w );
extern WRITE8_HANDLER( exprraid_flipscreen_w );
extern WRITE8_HANDLER( exprraid_bgselect_w );
extern WRITE8_HANDLER( exprraid_scrollx_w );
extern WRITE8_HANDLER( exprraid_scrolly_w );
extern VIDEO_START( exprraid );
extern SCREEN_UPDATE( exprraid );
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