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

    Atari Cyberball hardware

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

#include "machine/atarigen.h"

typedef struct _cyberbal_state cyberbal_state;
struct _cyberbal_state
{
	atarigen_state	atarigen;

	UINT16 *		paletteram_0;
	UINT16 *		paletteram_1;
	UINT16 			current_slip[2];
	UINT8 			playfield_palette_bank[2];
	UINT16 			playfield_xscroll[2];
	UINT16 			playfield_yscroll[2];

	UINT8 *			bank_base;
	UINT8 			fast_68k_int;
	UINT8			io_68k_int;
	UINT8 			sound_data_from_68k;
	UINT8			sound_data_from_6502;
	UINT8 			sound_data_from_68k_ready;
	UINT8			sound_data_from_6502_ready;
};



/*----------- defined in audio/cyberbal.c -----------*/

void cyberbal_sound_reset(running_machine *machine);

INTERRUPT_GEN( cyberbal_sound_68k_irq_gen );

READ8_HANDLER( cyberbal_special_port3_r );
READ8_HANDLER( cyberbal_sound_6502_stat_r );
READ8_HANDLER( cyberbal_sound_68k_6502_r );
WRITE8_HANDLER( cyberbal_sound_bank_select_w );
WRITE8_HANDLER( cyberbal_sound_68k_6502_w );

READ16_HANDLER( cyberbal_sound_68k_r );
WRITE16_HANDLER( cyberbal_io_68k_irq_ack_w );
WRITE16_HANDLER( cyberbal_sound_68k_w );
WRITE16_HANDLER( cyberbal_sound_68k_dac_w );


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

READ16_HANDLER( cyberbal_paletteram_0_r );
READ16_HANDLER( cyberbal_paletteram_1_r );
WRITE16_HANDLER( cyberbal_paletteram_0_w );
WRITE16_HANDLER( cyberbal_paletteram_1_w );

VIDEO_START( cyberbal );
VIDEO_START( cyberb2p );
VIDEO_UPDATE( cyberbal );

void cyberbal_scanline_update(const device_config *screen, int scanline);