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

    Atari System 2 hardware

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

#include "machine/atarigen.h"
#include "cpu/m6502/m6502.h"
#include "cpu/t11/t11.h"

class atarisy2_state : public atarigen_state
{
public:
	atarisy2_state(const machine_config &mconfig, device_type type, const char *tag)
		: atarigen_state(mconfig, type, tag),
			m_maincpu(*this, "maincpu"),
			m_audiocpu(*this, "audiocpu"),
			m_slapstic_base(*this, "slapstic_base"),
			m_bankselect(*this, "bankselect"),
			m_playfield_tilemap(*this, "playfield"),
			m_alpha_tilemap(*this, "alpha"),
			m_rombank1(*this, "rombank1"),
			m_rombank2(*this, "rombank2") { }

	required_device<t11_device> m_maincpu;
	required_device<m6502_device> m_audiocpu;
	required_shared_ptr<UINT16> m_slapstic_base;

	UINT8           m_interrupt_enable;
	required_shared_ptr<UINT16> m_bankselect;
	
	required_device<tilemap_device> m_playfield_tilemap;
	required_device<tilemap_device> m_alpha_tilemap;

	INT8            m_pedal_count;

	UINT8           m_has_tms5220;

	UINT8           m_which_adc;

	UINT8           m_p2portwr_state;
	UINT8           m_p2portrd_state;

	required_shared_ptr<UINT16> m_rombank1;
	required_shared_ptr<UINT16> m_rombank2;

	UINT8           m_sound_reset_state;

	emu_timer *     m_yscroll_reset_timer;
	UINT32          m_playfield_tile_bank[2];
	UINT32          m_videobank;

	// 720 fake joystick
	double          m_joy_last_angle;
	int             m_joy_rotations;

	// 720 fake spinner
	UINT32          m_spin_last_rotate_count;
	INT32           m_spin_pos;                 /* track fake position of spinner */
	UINT32          m_spin_center_count;

	UINT16          m_vram[0x8000/2];

	virtual void device_post_load();

	virtual void update_interrupts();
	virtual void scanline_update(screen_device &screen, int scanline);
	DECLARE_WRITE16_MEMBER(int0_ack_w);
	DECLARE_WRITE16_MEMBER(int1_ack_w);
	DECLARE_WRITE16_MEMBER(int_enable_w);
	DECLARE_WRITE16_MEMBER(bankselect_w);
	DECLARE_READ16_MEMBER(switch_r);
	DECLARE_READ8_MEMBER(switch_6502_r);
	DECLARE_WRITE8_MEMBER(switch_6502_w);
	DECLARE_WRITE16_MEMBER(adc_strobe_w);
	DECLARE_READ16_MEMBER(adc_r);
	DECLARE_READ8_MEMBER(leta_r);
	DECLARE_WRITE8_MEMBER(mixer_w);
	DECLARE_WRITE8_MEMBER(sound_reset_w);
	DECLARE_READ16_MEMBER(sound_r);
	DECLARE_WRITE8_MEMBER(sound_6502_w);
	DECLARE_READ8_MEMBER(sound_6502_r);
	DECLARE_WRITE8_MEMBER(tms5220_w);
	DECLARE_WRITE8_MEMBER(tms5220_strobe_w);
	DECLARE_WRITE8_MEMBER(coincount_w);
	DECLARE_DIRECT_UPDATE_MEMBER(atarisy2_direct_handler);
	DECLARE_DRIVER_INIT(ssprint);
	DECLARE_DRIVER_INIT(apb);
	DECLARE_DRIVER_INIT(csprint);
	DECLARE_DRIVER_INIT(paperboy);
	DECLARE_DRIVER_INIT(720);
	TILE_GET_INFO_MEMBER(get_alpha_tile_info);
	TILE_GET_INFO_MEMBER(get_playfield_tile_info);
	DECLARE_MACHINE_START(atarisy2);
	DECLARE_MACHINE_RESET(atarisy2);
	DECLARE_VIDEO_START(atarisy2);
	UINT32 screen_update_atarisy2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	INTERRUPT_GEN_MEMBER(vblank_int);
	TIMER_CALLBACK_MEMBER(delayed_int_enable_w);
	TIMER_CALLBACK_MEMBER(reset_yscroll_callback);
	DECLARE_READ16_MEMBER(slapstic_r);
	DECLARE_READ16_MEMBER(videoram_r);
	DECLARE_WRITE16_MEMBER(slapstic_w);
	DECLARE_WRITE16_MEMBER(yscroll_w);
	DECLARE_WRITE16_MEMBER(xscroll_w);
	DECLARE_WRITE16_MEMBER(videoram_w);
	DECLARE_WRITE16_MEMBER(paletteram_w);
};