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/***************************************************************************

    Burger Time hardware

***************************************************************************/

class btime_state : public driver_device
{
public:
	btime_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_rambase(*this, "rambase"),
		m_videoram(*this, "videoram"),
		m_colorram(*this, "colorram"),
		m_bnj_backgroundram(*this, "bnj_bgram"),
		m_zoar_scrollram(*this, "zoar_scrollram"),
		m_lnc_charbank(*this, "lnc_charbank"),
		m_deco_charram(*this, "deco_charram"),
		m_spriteram(*this, "spriteram"),
		m_audio_rambase(*this, "audio_rambase")
	{ }

	/* memory pointers */
	optional_shared_ptr<UINT8> m_rambase;
	required_shared_ptr<UINT8> m_videoram;
	required_shared_ptr<UINT8> m_colorram;
//  UINT8 *  m_paletteram;    // currently this uses generic palette handling
	optional_shared_ptr<UINT8> m_bnj_backgroundram;
	optional_shared_ptr<UINT8> m_zoar_scrollram;
	optional_shared_ptr<UINT8> m_lnc_charbank;
	optional_shared_ptr<UINT8> m_deco_charram;
	optional_shared_ptr<UINT8> m_spriteram; 	// used by disco
//  UINT8 *  m_decrypted;
	optional_shared_ptr<UINT8> m_audio_rambase;

	/* video-related */
	bitmap_ind16 *m_background_bitmap;
	UINT8    m_btime_palette;
	UINT8    m_bnj_scroll1;
	UINT8    m_bnj_scroll2;
	UINT8    m_btime_tilemap[4];

	/* audio-related */
	UINT8    m_audio_nmi_enable_type;
	UINT8    m_audio_nmi_enabled;
	UINT8    m_audio_nmi_state;

	/* protection-related (for mmonkey) */
	int      m_protection_command;
	int      m_protection_status;
	int      m_protection_value;
	int      m_protection_ret;

	/* devices */
	cpu_device *m_maincpu;
	cpu_device *m_audiocpu;

	DECLARE_WRITE8_MEMBER(audio_nmi_enable_w);
	DECLARE_WRITE8_MEMBER(lnc_w);
	DECLARE_WRITE8_MEMBER(mmonkey_w);
	DECLARE_WRITE8_MEMBER(btime_w);
	DECLARE_WRITE8_MEMBER(tisland_w);
	DECLARE_WRITE8_MEMBER(zoar_w);
	DECLARE_WRITE8_MEMBER(disco_w);
	DECLARE_WRITE8_MEMBER(audio_command_w);
	DECLARE_READ8_MEMBER(audio_command_r);
	DECLARE_READ8_MEMBER(zoar_dsw1_read);
	DECLARE_READ8_MEMBER(wtennis_reset_hack_r);
	DECLARE_READ8_MEMBER(mmonkey_protection_r);
	DECLARE_WRITE8_MEMBER(mmonkey_protection_w);
	DECLARE_WRITE8_MEMBER(btime_paletteram_w);
	DECLARE_WRITE8_MEMBER(lnc_videoram_w);
	DECLARE_READ8_MEMBER(btime_mirrorvideoram_r);
	DECLARE_READ8_MEMBER(btime_mirrorcolorram_r);
	DECLARE_WRITE8_MEMBER(btime_mirrorvideoram_w);
	DECLARE_WRITE8_MEMBER(lnc_mirrorvideoram_w);
	DECLARE_WRITE8_MEMBER(btime_mirrorcolorram_w);
	DECLARE_WRITE8_MEMBER(deco_charram_w);
	DECLARE_WRITE8_MEMBER(bnj_background_w);
	DECLARE_WRITE8_MEMBER(bnj_scroll1_w);
	DECLARE_WRITE8_MEMBER(bnj_scroll2_w);
	DECLARE_WRITE8_MEMBER(btime_video_control_w);
	DECLARE_WRITE8_MEMBER(bnj_video_control_w);
	DECLARE_WRITE8_MEMBER(zoar_video_control_w);
	DECLARE_WRITE8_MEMBER(disco_video_control_w);
	DECLARE_INPUT_CHANGED_MEMBER(coin_inserted_irq_hi);
	DECLARE_INPUT_CHANGED_MEMBER(coin_inserted_irq_lo);
	DECLARE_INPUT_CHANGED_MEMBER(coin_inserted_nmi_lo);
	DECLARE_WRITE8_MEMBER(ay_audio_nmi_enable_w);

	DECLARE_DRIVER_INIT(btime);
	DECLARE_DRIVER_INIT(tisland);
	DECLARE_DRIVER_INIT(cookrace);
	DECLARE_DRIVER_INIT(zoar);
	DECLARE_DRIVER_INIT(sdtennis);
	DECLARE_DRIVER_INIT(wtennis);
	DECLARE_DRIVER_INIT(bnj);
	DECLARE_DRIVER_INIT(protennb);
	DECLARE_DRIVER_INIT(disco);
	DECLARE_DRIVER_INIT(lnc);
	DECLARE_MACHINE_START(btime);
	DECLARE_MACHINE_RESET(btime);
	DECLARE_VIDEO_START(btime);
	DECLARE_PALETTE_INIT(btime);
	DECLARE_MACHINE_RESET(lnc);
	DECLARE_PALETTE_INIT(lnc);
	DECLARE_MACHINE_START(mmonkey);
	DECLARE_MACHINE_RESET(mmonkey);
	DECLARE_VIDEO_START(bnj);
};


/*----------- defined in machine/btime.c -----------*/



/*----------- defined in video/btime.c -----------*/







SCREEN_UPDATE_IND16( btime );
SCREEN_UPDATE_IND16( cookrace );
SCREEN_UPDATE_IND16( bnj );
SCREEN_UPDATE_IND16( lnc );
SCREEN_UPDATE_IND16( zoar );
SCREEN_UPDATE_IND16( disco );
SCREEN_UPDATE_IND16( eggs );