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

    Midway 8080-based black and white hardware

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

#include "sound/discrete.h"
#include "sound/sn76477.h"
#include "sound/samples.h"


#define MW8080BW_MASTER_CLOCK             (19968000)
#define MW8080BW_CPU_CLOCK                (MW8080BW_MASTER_CLOCK / 10)
#define MW8080BW_PIXEL_CLOCK              (MW8080BW_MASTER_CLOCK / 4)
#define MW8080BW_HTOTAL                   (0x140)
#define MW8080BW_HBEND                    (0x000)
#define MW8080BW_HBSTART                  (0x100)
#define MW8080BW_VTOTAL                   (0x106)
#define MW8080BW_VBEND                    (0x000)
#define MW8080BW_VBSTART                  (0x0e0)
#define MW8080BW_VCOUNTER_START_NO_VBLANK (0x020)
#define MW8080BW_VCOUNTER_START_VBLANK    (0x0da)
#define MW8080BW_INT_TRIGGER_COUNT_1      (0x080)
#define MW8080BW_INT_TRIGGER_VBLANK_1     (0)
#define MW8080BW_INT_TRIGGER_COUNT_2      MW8080BW_VCOUNTER_START_VBLANK
#define MW8080BW_INT_TRIGGER_VBLANK_2     (1)

/* +4 is added to HBSTART because the hardware displays that many pixels after
   setting HBLANK */
#define MW8080BW_HPIXCOUNT                (MW8080BW_HBSTART + 4)


class mw8080bw_state : public driver_device
{
public:
	mw8080bw_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) { }

	/* memory pointers */
	UINT8 *     m_main_ram;
	UINT8 *     m_colorram;
	size_t      m_main_ram_size;

	/* sound-related */
	UINT8       m_port_1_last;
	UINT8       m_port_2_last;
	UINT8       m_port_1_last_extra;
	UINT8       m_port_2_last_extra;
	UINT8       m_port_3_last_extra;

	/* misc game specific */
	UINT16      m_phantom2_cloud_counter;
	UINT8       m_invaders_flip_screen;
	UINT8       m_rev_shift_res;
	UINT8       m_maze_tone_timing_state;	/* output of IC C1, pin 5 */
	UINT8       m_desertgun_controller_select;
	UINT8       m_clowns_controller_select;

	UINT8       m_spcenctr_strobe_state;
	UINT8       m_spcenctr_trench_width;
	UINT8       m_spcenctr_trench_center;
	UINT8       m_spcenctr_trench_slope[16];  /* 16x4 bit RAM */

	/* timer */
	emu_timer   *m_interrupt_timer;

	/* devices */
	device_t *m_maincpu;
	device_t *m_mb14241;
	device_t *m_samples;
	device_t *m_samples1;
	device_t *m_samples2;
	device_t *m_sn1;
	device_t *m_sn2;
	device_t *m_sn;
	device_t *m_discrete;
};


#define SEAWOLF_GUN_PORT_TAG			("GUN")

#define TORNBASE_CAB_TYPE_UPRIGHT_OLD	(0)
#define TORNBASE_CAB_TYPE_UPRIGHT_NEW	(1)
#define TORNBASE_CAB_TYPE_COCKTAIL		(2)

#define DESERTGU_GUN_X_PORT_TAG			("GUNX")
#define DESERTGU_GUN_Y_PORT_TAG			("GUNY")

#define INVADERS_CAB_TYPE_PORT_TAG		("CAB")
#define INVADERS_P1_CONTROL_PORT_TAG	("CONTP1")
#define INVADERS_P2_CONTROL_PORT_TAG	("CONTP2")


#define BLUESHRK_SPEAR_PORT_TAG			("IN0")

#define INVADERS_CONTROL_PORT_P1 \
	PORT_START(INVADERS_P1_CONTROL_PORT_TAG) \
	INVADERS_CONTROL_PORT_PLAYER(1)

#define INVADERS_CONTROL_PORT_P2 \
	PORT_START(INVADERS_P2_CONTROL_PORT_TAG) \
	INVADERS_CONTROL_PORT_PLAYER(2)

#define INVADERS_CONTROL_PORT_PLAYER(player) \
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(player) \
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(player) \
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(player) \
	PORT_BIT( 0xf8, IP_ACTIVE_HIGH, IPT_UNUSED )

#define INVADERS_CAB_TYPE_PORT \
	PORT_START(INVADERS_CAB_TYPE_PORT_TAG) \
	PORT_CONFNAME( 0x01, 0x00, DEF_STR( Cabinet ) ) \
	PORT_CONFSETTING(    0x00, DEF_STR( Upright ) ) \
	PORT_CONFSETTING(    0x01, DEF_STR( Cocktail ) )

/*----------- defined in drivers/mw8080bw.c -----------*/

MACHINE_CONFIG_EXTERN( mw8080bw_root );
MACHINE_CONFIG_EXTERN( invaders );
extern const char layout_invaders[];

UINT8 tornbase_get_cabinet_type(running_machine &machine);

CUSTOM_INPUT( invaders_in1_control_r );
CUSTOM_INPUT( invaders_in2_control_r );

int invaders_is_cabinet_cocktail(running_machine &machine);


/*----------- defined in machine/mw8080bw.c -----------*/

MACHINE_START( mw8080bw );
MACHINE_RESET( mw8080bw );


/*----------- defined in audio/mw8080bw.c -----------*/

WRITE8_DEVICE_HANDLER( midway_tone_generator_lo_w );
WRITE8_DEVICE_HANDLER( midway_tone_generator_hi_w );

MACHINE_CONFIG_EXTERN( seawolf_audio );
WRITE8_HANDLER( seawolf_audio_w );

MACHINE_CONFIG_EXTERN( gunfight_audio );
WRITE8_HANDLER( gunfight_audio_w );

MACHINE_CONFIG_EXTERN( tornbase_audio );
WRITE8_DEVICE_HANDLER( tornbase_audio_w );

MACHINE_CONFIG_EXTERN( zzzap_audio );
WRITE8_HANDLER( zzzap_audio_1_w );
WRITE8_HANDLER( zzzap_audio_2_w );

MACHINE_CONFIG_EXTERN( maze_audio );
void maze_write_discrete(device_t *device, UINT8 maze_tone_timing_state);

MACHINE_CONFIG_EXTERN( boothill_audio );
WRITE8_DEVICE_HANDLER( boothill_audio_w );

MACHINE_CONFIG_EXTERN( checkmat_audio );
WRITE8_DEVICE_HANDLER( checkmat_audio_w );

MACHINE_CONFIG_EXTERN( desertgu_audio );
WRITE8_DEVICE_HANDLER( desertgu_audio_1_w );
WRITE8_DEVICE_HANDLER( desertgu_audio_2_w );

MACHINE_CONFIG_EXTERN( dplay_audio );
WRITE8_DEVICE_HANDLER( dplay_audio_w );

MACHINE_CONFIG_EXTERN( gmissile_audio );
WRITE8_HANDLER( gmissile_audio_1_w );
WRITE8_HANDLER( gmissile_audio_2_w );
WRITE8_HANDLER( gmissile_audio_3_w );

MACHINE_CONFIG_EXTERN( m4_audio );
WRITE8_HANDLER( m4_audio_1_w );
WRITE8_HANDLER( m4_audio_2_w );

MACHINE_CONFIG_EXTERN( clowns_audio );
WRITE8_HANDLER( clowns_audio_1_w );
WRITE8_DEVICE_HANDLER( clowns_audio_2_w );

MACHINE_CONFIG_EXTERN( spacwalk_audio );
WRITE8_DEVICE_HANDLER( spacwalk_audio_1_w );
WRITE8_DEVICE_HANDLER( spacwalk_audio_2_w );

MACHINE_CONFIG_EXTERN( shuffle_audio );
WRITE8_DEVICE_HANDLER( shuffle_audio_1_w );
WRITE8_DEVICE_HANDLER( shuffle_audio_2_w );

MACHINE_CONFIG_EXTERN( dogpatch_audio );
WRITE8_HANDLER( dogpatch_audio_w );

MACHINE_CONFIG_EXTERN( spcenctr_audio );
WRITE8_DEVICE_HANDLER( spcenctr_audio_1_w );
WRITE8_DEVICE_HANDLER( spcenctr_audio_2_w );
WRITE8_DEVICE_HANDLER( spcenctr_audio_3_w );

MACHINE_CONFIG_EXTERN( phantom2_audio );
WRITE8_HANDLER( phantom2_audio_1_w );
WRITE8_HANDLER( phantom2_audio_2_w );

MACHINE_CONFIG_EXTERN( bowler_audio );
WRITE8_DEVICE_HANDLER( bowler_audio_1_w );
WRITE8_HANDLER( bowler_audio_2_w );
WRITE8_HANDLER( bowler_audio_3_w );
WRITE8_HANDLER( bowler_audio_4_w );
WRITE8_HANDLER( bowler_audio_5_w );
WRITE8_HANDLER( bowler_audio_6_w );

MACHINE_CONFIG_EXTERN( invaders_samples_audio );
MACHINE_CONFIG_EXTERN( invaders_audio );
WRITE8_DEVICE_HANDLER( invaders_audio_1_w );
WRITE8_DEVICE_HANDLER( invaders_audio_2_w );

MACHINE_CONFIG_EXTERN( blueshrk_audio );
WRITE8_DEVICE_HANDLER( blueshrk_audio_w );

MACHINE_CONFIG_EXTERN( invad2ct_audio );
WRITE8_DEVICE_HANDLER( invad2ct_audio_1_w );
WRITE8_DEVICE_HANDLER( invad2ct_audio_2_w );
WRITE8_DEVICE_HANDLER( invad2ct_audio_3_w );
WRITE8_DEVICE_HANDLER( invad2ct_audio_4_w );

/*----------- defined in video/mw8080bw.c -----------*/

SCREEN_UPDATE( mw8080bw );

SCREEN_UPDATE( spcenctr );

SCREEN_UPDATE( phantom2 );
SCREEN_EOF( phantom2 );

SCREEN_UPDATE( invaders );