extern UINT8 *cgenie_fontram;

DEVICE_LOAD( cgenie_cassette );
DEVICE_LOAD( cgenie_floppy );

VIDEO_START( cgenie );
VIDEO_UPDATE( cgenie );

void cgenie_sh_sound_init(const char * gamename);
WRITE8_HANDLER ( cgenie_sh_control_port_w );
WRITE8_HANDLER ( cgenie_sh_data_port_w );
READ8_HANDLER ( cgenie_sh_control_port_r );
READ8_HANDLER ( cgenie_sh_data_port_r );

/* from mess/machine/cgenie.c */
extern int cgenie_tv_mode;

READ8_HANDLER ( cgenie_psg_port_a_r);
READ8_HANDLER ( cgenie_psg_port_b_r );
WRITE8_HANDLER ( cgenie_psg_port_a_w );
WRITE8_HANDLER ( cgenie_psg_port_b_w );

MACHINE_START( cgenie );

READ8_HANDLER ( cgenie_colorram_r );
READ8_HANDLER ( cgenie_fontram_r );

void cgenie_dos_rom_w(int offset, int data);
void cgenie_ext_rom_w(int offset, int data);
WRITE8_HANDLER ( cgenie_colorram_w );
WRITE8_HANDLER ( cgenie_fontram_w );

WRITE8_HANDLER ( cgenie_port_ff_w );
 READ8_HANDLER ( cgenie_port_ff_r );
int cgenie_port_xx_r(int offset);

INTERRUPT_GEN( cgenie_timer_interrupt );
INTERRUPT_GEN( cgenie_frame_interrupt );

 READ8_HANDLER ( cgenie_status_r );
 READ8_HANDLER ( cgenie_track_r );
 READ8_HANDLER ( cgenie_sector_r );
 READ8_HANDLER ( cgenie_data_r );

WRITE8_HANDLER ( cgenie_command_w );
WRITE8_HANDLER ( cgenie_track_w );
WRITE8_HANDLER ( cgenie_sector_w );
WRITE8_HANDLER ( cgenie_data_w );

 READ8_HANDLER ( cgenie_irq_status_r );

WRITE8_HANDLER ( cgenie_motor_w );

 READ8_HANDLER ( cgenie_keyboard_r );
int cgenie_videoram_r(int offset);
WRITE8_HANDLER ( cgenie_videoram_w );

typedef struct {         // CRTC 6845
        UINT8    cursor_address_lo;
        UINT8    cursor_address_hi;
        UINT8    screen_address_lo;
        UINT8    screen_address_hi;
        UINT8    cursor_bottom;
        UINT8    cursor_top;
        UINT8    scan_lines;
        UINT8    crt_mode;
        UINT8    vertical_sync_pos;
        UINT8    vertical_displayed;
        UINT8    vertical_adjust;
        UINT8    vertical_total;
        UINT8    horizontal_length;
        UINT8    horizontal_sync_pos;
        UINT8    horizontal_displayed;
        UINT8    horizontal_total;
        UINT8    idx;
        UINT8    cursor_visible;
        UINT8    cursor_phase;
} CRTC6845;

extern	int 	cgenie_font_offset[4];

VIDEO_START( cgenie );
VIDEO_UPDATE( cgenie );

extern	 READ8_HANDLER ( cgenie_index_r );
extern	 READ8_HANDLER ( cgenie_register_r );

extern	WRITE8_HANDLER ( cgenie_index_w );
extern	WRITE8_HANDLER (	cgenie_register_w );

extern	int 	cgenie_get_register(int indx);

extern	void	cgenie_mode_select(int graphics);
extern	void	cgenie_invalidate_range(int l, int h);