nyny.cpp

// license:BSD-3-Clause
// copyright-holders:Darren Olafson, Zsolt Vasvari
/***************************************************************************

    New York! New York! hardware

    Games Supported:
        * New York! New York! (2 sets)
        * Waga Seishun no Arcadia

    Known issues/to-do's:
        * What does port A on IC37 AY8910 do?  It looks like a DAC, but
          this is not supported by the writes to the port.  All the
          writes are 0x9X, usually 0x9b or 0x9d.  Note that this is
          incorrectly referred to as port B on the schematics, but the
          pin #'s confirm it is, in fact port A.
        * What is the main CPU clock?  11.2Mhz / 16 goes through
          a MC4044 and a MC4024 analog chips before going to the EXTAL
          pin of the M6809

    Notes:
        * The Sigma set has Japanese voice samples, while the Gottlieb
          one is English
        * Taito T.T. New York New York's ROMs match the ones from the
          Sigma set
        * In cocktail mode New York! New York! programs the CRTC with an
          incorrect value.  Interestingly, when the Flip Screen DIP
          is set, the value programmed is correct.  This bug does not
          exist in Waga Seishun no Arcadia
        * The Crosshatch switch only works on the title screen
        * The Service Mode switch, which displays the total number of
          credits stored in the NVRAM, only works on the "Start Game"
          screen after a coin has been inserted.  Hold down the key to
          display the coin count
        * The schematics mixed up port A and B on both AY-8910


    Memory map main cpu (m6809)

    fedcba98
     --------
    000xxxxx  we1   $0000 8k (bitmap)
    100xxxxx  we1   $8000 8k (ram)

    010xxxxx  we2   $4000 8k (bitmap)
    110xxxxx  we2   $C000 8k (ram)

    001xxxxx  we3   $2000 16k x 3bits (color)

    011xxxxx  we4   $6000 16k x 3bits (color)

    10100000  SRAM  $A000 (HB4334P 1024-byte SRAM, but A8/A9 are always 0)
    10100001  CRTC  $A100
    10100010  PIA   $A200
    10100011  SOUND $A300 one latch for read one for write same address

    10101xxx  ROM7  $A800
    10110xxx  ROM6  $B000
    10111xxx  ROM5  $B800

    11100xxx  ROM4  $E000
    11101xxx  ROM3  $E800
    11110xxx  ROM2  $F000
    11111xxx  ROM1  $F800

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

#include "emu.h"

#include "cpu/m6800/m6800.h"
#include "cpu/m6809/m6809.h"
#include "machine/6821pia.h"
#include "machine/74123.h"
#include "machine/gen_latch.h"
#include "machine/nvram.h"
#include "machine/rescap.h"
#include "sound/ay8910.h"
#include "sound/dac.h"
#include "video/mc6845.h"

#include "emupal.h"
#include "screen.h"
#include "speaker.h"


namespace {

#define MAIN_CPU_MASTER_CLOCK       XTAL(11'200'000)
#define PIXEL_CLOCK                 (MAIN_CPU_MASTER_CLOCK / 2)
#define CRTC_CLOCK                  (MAIN_CPU_MASTER_CLOCK / 16)
#define AUDIO_1_MASTER_CLOCK        XTAL(4'000'000)
#define AUDIO_CPU_1_CLOCK           AUDIO_1_MASTER_CLOCK
#define AUDIO_2_MASTER_CLOCK        XTAL(4'000'000)
#define AUDIO_CPU_2_CLOCK           AUDIO_2_MASTER_CLOCK


class nyny_state : public driver_device
{
public:
	nyny_state(const machine_config &mconfig, device_type type, const char *tag) :
		driver_device(mconfig, type, tag),
		m_videoram(*this, "videoram%u", 1U),
		m_colorram(*this, "colorram%u", 1U),
		m_maincpu(*this, "maincpu"),
		m_audiocpu(*this, "audiocpu"),
		m_audiocpu2(*this, "audio2"),
		m_ic48_1(*this, "ic48_1"),
		m_mc6845(*this, "crtc"),
		m_palette(*this, "palette"),
		m_pia1(*this, "pia1"),
		m_pia2(*this, "pia2"),
		m_soundlatch(*this, "soundlatch"),
		m_soundlatch2(*this, "soundlatch2"),
		m_soundlatch3(*this, "soundlatch3")
	{ }

	void nyny(machine_config &config);

private:
	/* memory pointers */
	required_shared_ptr_array<uint8_t, 4> m_videoram;
	required_shared_ptr_array<uint8_t, 2> m_colorram;

	/* video-related */
	bool     m_flipscreen = false;
	bool     m_flipchars = false;
	uint8_t    m_star_enable = 0;
	uint16_t   m_star_delay_counter = 0;
	uint16_t   m_star_shift_reg = 0;

	/* devices */
	required_device<cpu_device> m_maincpu;
	required_device<cpu_device> m_audiocpu;
	required_device<cpu_device> m_audiocpu2;
	required_device<ttl74123_device> m_ic48_1;
	required_device<mc6845_device> m_mc6845;
	required_device<palette_device> m_palette;
	required_device<pia6821_device> m_pia1;
	required_device<pia6821_device> m_pia2;
	required_device<generic_latch_8_device> m_soundlatch;
	required_device<generic_latch_8_device> m_soundlatch2;
	required_device<generic_latch_8_device> m_soundlatch3;

	void audio_1_command_w(uint8_t data);
	void audio_1_answer_w(uint8_t data);
	void audio_2_command_w(uint8_t data);
	uint8_t nyny_pia_1_2_r(offs_t offset);
	void nyny_pia_1_2_w(offs_t offset, uint8_t data);
	void main_cpu_irq(int state);
	void main_cpu_firq(int state);
	void pia_2_port_a_w(uint8_t data);
	void pia_2_port_b_w(uint8_t data);
	void flipscreen_w(int state);
	void flipchars_w(int state);
	void nyny_ay8910_37_port_a_w(uint8_t data);
	virtual void machine_start() override;
	virtual void machine_reset() override;
	INTERRUPT_GEN_MEMBER(update_pia_1);
	void ic48_1_74123_output_changed(int state);
	inline void shift_star_generator(  );

	MC6845_UPDATE_ROW(crtc_update_row);
	MC6845_END_UPDATE(crtc_end_update);
	void audio_1_map(address_map &map);
	void audio_2_map(address_map &map);
	void main_map(address_map &map);
};


/*************************************
 *
 *  Interrupt generation
 *
 *************************************/

void nyny_state::main_cpu_irq(int state)
{
	int combined_state = m_pia1->irq_a_state() | m_pia1->irq_b_state() | m_pia2->irq_b_state();

	m_maincpu->set_input_line(M6809_IRQ_LINE, combined_state ? ASSERT_LINE : CLEAR_LINE);
}


void nyny_state::main_cpu_firq(int state)
{
	m_maincpu->set_input_line(M6809_FIRQ_LINE, state ? ASSERT_LINE : CLEAR_LINE);
}



/*************************************
 *
 *  PIA1
 *
 *************************************/

INTERRUPT_GEN_MEMBER(nyny_state::update_pia_1)
{
	/* update the different PIA pins from the input ports */

	/* CA1 - copy of PA0 (COIN1) */
	m_pia1->ca1_w(ioport("IN0")->read() & 0x01);

	/* CA2 - copy of PA1 (SERVICE1) */
	m_pia1->ca2_w(ioport("IN0")->read() & 0x02);

	/* CB1 - (crosshatch) */
	m_pia1->cb1_w(ioport("CROSS")->read());

	/* CB2 - NOT CONNECTED */
}


/*************************************
 *
 *  PIA2
 *
 *************************************/

void nyny_state::pia_2_port_a_w(uint8_t data)
{
	m_star_delay_counter = (m_star_delay_counter & 0x0f00) | data;
}


void nyny_state::pia_2_port_b_w(uint8_t data)
{
	/* bits 0-3 go to bits 8-11 of the star delay counter */
	m_star_delay_counter = (m_star_delay_counter & 0x00ff) | ((data & 0x0f) << 8);

	/* bit 4 is star field enable */
	m_star_enable = data & 0x10;

	/* bits 5-7 go to the music board connector */
	audio_2_command_w(data & 0xe0);
}


/*************************************
 *
 *  IC48 #1 - 74123
 *
 *  This timer is responsible for
 *  delaying the setting of PIA2's
 *  CA1 line.  This delay ensures that
 *  CA1 is only changed in the VBLANK
 *  region, but not in HBLANK
 *
 *************************************/

void nyny_state::ic48_1_74123_output_changed(int state)
{
	m_pia2->ca1_w(state);
}

/*************************************
 *
 *  Video system
 *
 *************************************/


void nyny_state::flipscreen_w(int state)
{
	m_flipscreen = !state;
}


void nyny_state::flipchars_w(int state)
{
	m_flipchars = state;
}


MC6845_UPDATE_ROW( nyny_state::crtc_update_row )
{
	uint32_t *pix = &bitmap.pix(y);

	for (uint8_t cx = 0; cx < x_count; cx++)
	{
		/* the memory is hooked up to the MA, RA lines this way */
		offs_t offs = ((ma << 3) & 0x3f00) |
						((ra << 5) & 0x00e0) |
						((ma << 0) & 0x001f);

		if (m_flipscreen)
			offs ^= 0x3fff;

		uint8_t data1 = m_videoram[offs >= 0x2000 ? 2 : 0][offs & 0x1fff];
		uint8_t data2 = m_videoram[offs >= 0x2000 ? 3 : 1][offs & 0x1fff];
		uint8_t color1 = offs >= 0x2000 ? 0 : m_colorram[0][offs] & 0x07;
		uint8_t color2 = offs >= 0x2000 ? 0 : m_colorram[1][offs] & 0x07;

		for (int i = 0; i < 8; i++)
		{
			uint8_t bit1, bit2, color;

			if (m_flipchars)
			{
				bit1 = BIT(data1, 7);
				bit2 = BIT(data2, 7);
				data1 <<= 1;
				data2 <<= 1;
			}
			else
			{
				bit1 = BIT(data1, 0);
				bit2 = BIT(data2, 0);
				data1 >>= 1;
				data2 >>= 1;
			}

			/* plane 1 has priority over plane 2 */
			if (bit1)
				color = color1;
			else
				color = bit2 ? color2 : 0;

			*pix++ = m_palette->pen_color(color);
		}

		ma++;
	}
}


void nyny_state::shift_star_generator(  )
{
	m_star_shift_reg = (m_star_shift_reg << 1) | (((~m_star_shift_reg >> 15) & 0x01) ^ ((m_star_shift_reg >> 2) & 0x01));
}


MC6845_END_UPDATE( nyny_state::crtc_end_update )
{
	/* draw the star field into the bitmap */
	uint16_t delay_counter = m_star_delay_counter;

	for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
	{
		for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
		{
			/* check if the star status */
			if (m_star_enable && (bitmap.pix(y, x) == m_palette->pen_color(0)) &&
				((m_star_shift_reg & 0x80ff) == 0x00ff) &&
				(((y & 0x01) ^ m_flipscreen) ^ (((x & 0x08) >> 3) ^ m_flipscreen)))
			{
				uint8_t color = ((m_star_shift_reg & 0x0100) >>  8) |  /* R */
								((m_star_shift_reg & 0x0400) >>  9) |    /* G */
								((m_star_shift_reg & 0x1000) >> 10);     /* B */

				bitmap.pix(y, x) = m_palette->pen_color(color);
			}

			if (delay_counter == 0)
				shift_star_generator();
			else
				delay_counter = delay_counter - 1;
		}
	}
}



/*************************************
 *
 *  Audio system - CPU 1
 *
 *************************************/

void nyny_state::audio_1_command_w(uint8_t data)
{
	m_soundlatch->write(data);
	m_audiocpu->set_input_line(M6802_IRQ_LINE, HOLD_LINE);
}


void nyny_state::audio_1_answer_w(uint8_t data)
{
	m_soundlatch3->write(data);
	m_maincpu->set_input_line(M6809_IRQ_LINE, HOLD_LINE);
}


void nyny_state::nyny_ay8910_37_port_a_w(uint8_t data)
{
	/* not sure what this does */

	/*logerror("%s PORT A write %x at  Y=%x X=%x\n", machine().describe_context(), data, m_screen->vpos(), m_screen->hpos());*/
}

/*************************************
 *
 *  Audio system - CPU 2
 *
 *************************************/

void nyny_state::audio_2_command_w(uint8_t data)
{
	m_soundlatch2->write((data & 0x60) >> 5);
	m_audiocpu2->set_input_line(M6802_IRQ_LINE, BIT(data, 7) ? CLEAR_LINE : ASSERT_LINE);
}



/*************************************
 *
 *  Memory handlers
 *
 *************************************/

uint8_t nyny_state::nyny_pia_1_2_r(offs_t offset)
{
	uint8_t ret = 0;

	/* the address bits are directly connected to the chip selects */
	if (BIT(offset, 2))  ret = m_pia1->read(offset & 0x03);
	if (BIT(offset, 3))  ret = m_pia2->read_alt(offset & 0x03);

	return ret;
}


void nyny_state::nyny_pia_1_2_w(offs_t offset, uint8_t data)
{
	/* the address bits are directly connected to the chip selects */
	if (BIT(offset, 2))  m_pia1->write(offset & 0x03, data);
	if (BIT(offset, 3))  m_pia2->write_alt(offset & 0x03, data);
}


void nyny_state::main_map(address_map &map)
{
	map(0x0000, 0x1fff).ram().share("videoram1");
	map(0x2000, 0x3fff).ram().share("colorram1");
	map(0x4000, 0x5fff).ram().share("videoram2");
	map(0x6000, 0x7fff).ram().share("colorram2");
	map(0x8000, 0x9fff).ram().share("videoram3");
	map(0xa000, 0xa0ff).ram().share("nvram"); /* SRAM (coin counter, shown when holding F2) */
	map(0xa100, 0xa100).mirror(0x00fe).w(m_mc6845, FUNC(mc6845_device::address_w));
	map(0xa101, 0xa101).mirror(0x00fe).w(m_mc6845, FUNC(mc6845_device::register_w));
	map(0xa200, 0xa20f).mirror(0x00f0).rw(FUNC(nyny_state::nyny_pia_1_2_r), FUNC(nyny_state::nyny_pia_1_2_w));
	map(0xa300, 0xa300).mirror(0x00ff).r(m_soundlatch3, FUNC(generic_latch_8_device::read)).w(FUNC(nyny_state::audio_1_command_w));
	map(0xa400, 0xa7ff).noprw();
	map(0xa800, 0xbfff).rom();
	map(0xc000, 0xdfff).ram().share("videoram4");
	map(0xe000, 0xffff).rom();
}


void nyny_state::audio_1_map(address_map &map)
{
	map.global_mask(0x7fff);
	map(0x0080, 0x0fff).noprw();
	map(0x1000, 0x1000).mirror(0x0fff).r(m_soundlatch, FUNC(generic_latch_8_device::read)).w(FUNC(nyny_state::audio_1_answer_w));
	map(0x2000, 0x2000).mirror(0x0fff).portr("SW3");
	map(0x3000, 0x3000).mirror(0x0ffc).r("ay1", FUNC(ay8910_device::data_r));
	map(0x3000, 0x3001).mirror(0x0ffc).w("ay1", FUNC(ay8910_device::data_address_w));
	map(0x3002, 0x3002).mirror(0x0ffc).r("ay2", FUNC(ay8910_device::data_r));
	map(0x3002, 0x3003).mirror(0x0ffc).w("ay2", FUNC(ay8910_device::data_address_w));
	map(0x4000, 0x4fff).noprw();
	map(0x5000, 0x57ff).mirror(0x0800).rom();
	map(0x6000, 0x67ff).mirror(0x0800).rom();
	map(0x7000, 0x77ff).mirror(0x0800).rom();
}


void nyny_state::audio_2_map(address_map &map)
{
	map.global_mask(0x7fff);
	map(0x0080, 0x0fff).noprw();
	map(0x1000, 0x1000).mirror(0x0fff).r(m_soundlatch2, FUNC(generic_latch_8_device::read));
	map(0x2000, 0x2000).mirror(0x0ffe).r("ay3", FUNC(ay8910_device::data_r));
	map(0x2000, 0x2001).mirror(0x0ffe).w("ay3", FUNC(ay8910_device::data_address_w));
	map(0x3000, 0x6fff).noprw();
	map(0x7000, 0x77ff).mirror(0x0800).rom();
}



/*************************************
 *
 *  Port definition
 *
 *************************************/

static INPUT_PORTS_START( nyny )
	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )     /* PIA0 PA0 */
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_SERVICE1 )  /* PIA0 PA1 */
	PORT_SERVICE_NO_TOGGLE(0x04, IP_ACTIVE_HIGH)    /* PIA0 PA2 */
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 )   /* PIA0 PA3 */
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL /* PIA0 PA4 */
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )    /* PIA0 PA5 */
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )    /* PIA0 PA6 */
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_START("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_COCKTAIL /* PIA0 PB0 */
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_COCKTAIL /* PIA0 PB1 */
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY   /* PIA0 PB2 */
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY  /* PIA0 PB3 */
	PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_START("SW1")
	PORT_DIPNAME( 0x03, 0x03, "Bombs from UFO (Screens 3+)" ) PORT_DIPLOCATION("SW1:1,2")
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "6" )
	PORT_DIPSETTING(    0x03, "9" )
	PORT_DIPSETTING(    0x02, "12" )
	PORT_DIPNAME( 0x04, 0x00, "Bombs from UFO (Screens 1 and 2)" ) PORT_DIPLOCATION("SW1:3")
	PORT_DIPSETTING(    0x04, "6" )
	PORT_DIPSETTING(    0x00, "9" )
	PORT_DIPNAME( 0x80, 0x80, "Voice Volume" ) PORT_DIPLOCATION("SW1:8")
	PORT_DIPSETTING(    0x00, DEF_STR( Low ) )
	PORT_DIPSETTING(    0x80, DEF_STR( High ) )

	PORT_START("SW2")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(    0x02, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0x18, 0x00, "Bonus Game" ) PORT_DIPLOCATION("SW2:4,5")
	PORT_DIPSETTING(    0x18, "No Bonus Game" )
	PORT_DIPSETTING(    0x10, "5000" )
	PORT_DIPSETTING(    0x00, "10000" )
	PORT_DIPSETTING(    0x08, "15000" )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:7")
	PORT_DIPSETTING(    0x00, "3000" )
	PORT_DIPSETTING(    0x40, "5000" )
	PORT_DIPNAME( 0x80, 0x80, "Bonus Life Awarded" ) PORT_DIPLOCATION("SW2:8")
	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Yes ) )

	PORT_START("SW3")
	PORT_DIPNAME( 0x01, 0x00, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW3:1")
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x01, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW3:2")
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x1c, 0x00, "Vertical Screen Position" ) PORT_DIPLOCATION("SW3:3,4,5")
	PORT_DIPSETTING(    0x1c, "-1" )
	PORT_DIPSETTING(    0x18, "-2" )
	PORT_DIPSETTING(    0x14, "-3" )
	PORT_DIPSETTING(    0x00, "Neutral" )
	PORT_DIPSETTING(    0x04, "+1" )
	PORT_DIPSETTING(    0x08, "+2" )
	PORT_DIPSETTING(    0x0c, "+3" )
	PORT_DIPNAME( 0xe0, 0x00, "Horizontal Screen Position" ) PORT_DIPLOCATION("SW3:6,7,8")
	PORT_DIPSETTING(    0xe0, "-1" )
	PORT_DIPSETTING(    0xc0, "-2" )
	PORT_DIPSETTING(    0xa0, "-3" )
	PORT_DIPSETTING(    0x00, "Neutral" )
	PORT_DIPSETTING(    0x60, "+1" )
	PORT_DIPSETTING(    0x40, "+2" )
	PORT_DIPSETTING(    0x20, "+3" )

	PORT_START("CROSS")     /* connected to PIA1 CB1 input */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("PS1 (Crosshatch)") PORT_CODE(KEYCODE_F1)

INPUT_PORTS_END



/*************************************
 *
 *  Machine start & reset
 *
 *************************************/

void nyny_state::machine_start()
{
	m_flipscreen = false;
	m_flipchars = false;

	/* setup for save states */
	save_item(NAME(m_flipscreen));
	save_item(NAME(m_flipchars));
	save_item(NAME(m_star_enable));
	save_item(NAME(m_star_delay_counter));
	save_item(NAME(m_star_shift_reg));
}

void nyny_state::machine_reset()
{
	m_star_enable = 0;
	m_star_delay_counter = 0;
	m_star_shift_reg = 0;
}

/*************************************
 *
 *  Machine driver
 *
 *************************************/

void nyny_state::nyny(machine_config &config)
{
	/* basic machine hardware */
	MC6809(config, m_maincpu, 5600000); /* 1.40 MHz? The clock signal is generated by analog chips */
	m_maincpu->set_addrmap(AS_PROGRAM, &nyny_state::main_map);
	m_maincpu->set_periodic_int(FUNC(nyny_state::update_pia_1), attotime::from_hz(25));

	M6802(config, m_audiocpu, AUDIO_CPU_1_CLOCK);
	m_audiocpu->set_addrmap(AS_PROGRAM, &nyny_state::audio_1_map);

	M6802(config, m_audiocpu2, AUDIO_CPU_2_CLOCK);
	m_audiocpu2->set_addrmap(AS_PROGRAM, &nyny_state::audio_2_map);

	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);

	/* video hardware */
	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
	screen.set_raw(PIXEL_CLOCK, 360, 0, 256, 276, 0, 224);
	screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update));

	PALETTE(config, m_palette, palette_device::RGB_3BIT);

	MC6845(config, m_mc6845, CRTC_CLOCK); // HD46505P
	m_mc6845->set_screen("screen");
	m_mc6845->set_show_border_area(false);
	m_mc6845->set_char_width(8);
	m_mc6845->set_update_row_callback(FUNC(nyny_state::crtc_update_row));
	m_mc6845->set_end_update_callback(FUNC(nyny_state::crtc_end_update));
	m_mc6845->out_de_callback().set(m_ic48_1, FUNC(ttl74123_device::a_w));

	/* 74LS123 */
	TTL74123(config, m_ic48_1, 0);
	m_ic48_1->set_connection_type(TTL74123_GROUNDED);   /* the hook up type */
	m_ic48_1->set_resistor_value(RES_K(22));            /* resistor connected to RCext */
	m_ic48_1->set_capacitor_value(CAP_U(0.01));         /* capacitor connected to Cext and RCext */
	m_ic48_1->set_a_pin_value(1);                       /* A pin - driven by the CRTC */
	m_ic48_1->set_b_pin_value(1);                       /* B pin - pulled high */
	m_ic48_1->set_clear_pin_value(1);                   /* Clear pin - pulled high */
	m_ic48_1->out_cb().set(FUNC(nyny_state::ic48_1_74123_output_changed));

	PIA6821(config, m_pia1);
	m_pia1->readpa_handler().set_ioport("IN0");
	m_pia1->readpb_handler().set_ioport("IN1");
	m_pia1->irqa_handler().set(FUNC(nyny_state::main_cpu_irq));
	m_pia1->irqb_handler().set(FUNC(nyny_state::main_cpu_irq));

	PIA6821(config, m_pia2);
	m_pia2->writepa_handler().set(FUNC(nyny_state::pia_2_port_a_w));
	m_pia2->writepb_handler().set(FUNC(nyny_state::pia_2_port_b_w));
	m_pia2->ca2_handler().set(FUNC(nyny_state::flipscreen_w));
	m_pia2->cb2_handler().set(FUNC(nyny_state::flipchars_w));
	m_pia2->irqa_handler().set(FUNC(nyny_state::main_cpu_firq));
	m_pia2->irqb_handler().set(FUNC(nyny_state::main_cpu_irq));

	/* audio hardware */
	SPEAKER(config, "speaker").front_center();

	GENERIC_LATCH_8(config, m_soundlatch);
	GENERIC_LATCH_8(config, m_soundlatch2);
	GENERIC_LATCH_8(config, m_soundlatch3);

	ay8910_device &ay1(AY8910(config, "ay1", AUDIO_CPU_1_CLOCK));
	ay1.port_a_write_callback().set(FUNC(nyny_state::nyny_ay8910_37_port_a_w));
	ay1.port_b_write_callback().set("dac", FUNC(dac_byte_interface::data_w));
	ay1.add_route(ALL_OUTPUTS, "speaker", 0.25);

	ay8910_device &ay2(AY8910(config, "ay2", AUDIO_CPU_1_CLOCK));
	ay2.port_a_read_callback().set_ioport("SW2");
	ay2.port_b_read_callback().set_ioport("SW1");
	ay2.add_route(ALL_OUTPUTS, "speaker", 0.25);

	AY8910(config, "ay3", AUDIO_CPU_2_CLOCK).add_route(ALL_OUTPUTS, "speaker", 0.03);

	DAC_8BIT_R2R(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.25); // unknown DAC
}



/*************************************
 *
 *  ROM definitions
 *
 *************************************/

ROM_START( nyny )
	ROM_REGION(0x10000, "maincpu", 0)   /* main CPU */
	ROM_LOAD( "nyny01s.100",  0xa800, 0x0800, CRC(a2b76eca) SHA1(e46717e6ad330be4c4e7d9fab4f055f89aa31bcc) ) // NE01.IC10.2716 on Taito PCB
	ROM_LOAD( "nyny02s.099",  0xb000, 0x0800, CRC(ef2d4dae) SHA1(718c0ecf7770a780aebb1dc8bf4ca86ea0a5ea28) ) // NE02.IC99.2716 on Taito PCB
	ROM_LOAD( "nyny03s.098",  0xb800, 0x0800, CRC(2734c229) SHA1(b028d057d26838bae50b8ddb90a3755b5315b4ee) ) // NE03.IC98.2716 on Taito PCB
	ROM_LOAD( "nyny04s.097",  0xe000, 0x0800, CRC(bd94087f) SHA1(02dde604bb84097fcd95c434847c55198b4e4309) ) // NE04.IC97.2716 on Taito PCB
	ROM_LOAD( "nyny05s.096",  0xe800, 0x0800, CRC(248b22c4) SHA1(d64d89bf78fa19d36e02720c296a60621ab8fe21) ) // NE05.IC96.2716 on Taito PCB
	ROM_LOAD( "nyny06s.095",  0xf000, 0x0800, CRC(8c073052) SHA1(0ce103ac0e79124ac9f1e097dda1a0664b92b89b) ) // NE06.IC95.2716 on Taito PCB
	ROM_LOAD( "nyny07s.094",  0xf800, 0x0800, CRC(d49d7429) SHA1(c12eaae7ba0b1d44c45a584232db03c5731c046a) ) // NE07.IC94.2716 on Taito PCB

	ROM_REGION(0x10000, "audiocpu", 0)  /* first audio CPU */
	ROM_LOAD( "nyny08.093",   0x5000, 0x0800, CRC(19ddb6c3) SHA1(0097fad542f9a33849565093c2fb106d90007b1a) ) // NE08.IC93.2716 on Taito PCB
	ROM_LOAD( "nyny09.092",   0x6000, 0x0800, CRC(a359c6f1) SHA1(1bc7b487581399908c3cec823733810fb6d944ce) ) // NE09.IC92.2716 on Taito PCB
	ROM_LOAD( "nyny10.091",   0x7000, 0x0800, CRC(a72a70fa) SHA1(deed7dec9cc43fa1d6c4854ba18169c894c9a2f0) ) // NE10.IC91.2716 on Taito PCB

	ROM_REGION(0x10000, "audio2", 0) /* second audio CPU */
	ROM_LOAD( "nyny11.snd",   0x7000, 0x0800, CRC(650450fc) SHA1(214693df394ca05eff5dbe1e800107d326ba80f6) ) // NE11.IC2.2516 on Taito PCB
ROM_END


ROM_START( nynyg )
	ROM_REGION(0x10000, "maincpu", 0)   /* main CPU */
	ROM_LOAD( "gny1.cpu",     0xa800, 0x0800, CRC(fb5b8f17) SHA1(2202325451dfd4e7c16cba93f0fade46929ffa72) )
	ROM_LOAD( "gny2.cpu",     0xb000, 0x0800, CRC(d248dd93) SHA1(0c4579698f8917332041c08af6902b8f8acd7d62) )
	ROM_LOAD( "gny3.cpu",     0xb800, 0x0800, CRC(223a9d09) SHA1(c2b12270d375587489208d6a1b37a4e3ec87bc20) )
	ROM_LOAD( "gny4.cpu",     0xe000, 0x0800, CRC(7964ec1f) SHA1(dba3dc2e928fb3fc04a9dca12951343669a4ecbe) )
	ROM_LOAD( "gny5.cpu",     0xe800, 0x0800, CRC(4799dcfc) SHA1(13dcc4a58a029c14a4e9acd0bf584c71d5302c03) )
	ROM_LOAD( "gny6.cpu",     0xf000, 0x0800, CRC(4839d4d2) SHA1(cfd6f2f252ee2f6a4d881496a017c02d7dd77944) )
	ROM_LOAD( "gny7.cpu",     0xf800, 0x0800, CRC(b7564c5b) SHA1(e1d8fe7f37aa7aa98f18c538fe6e688675cc2de1) )

	ROM_REGION(0x10000, "audiocpu", 0)  /* first audio CPU */
	ROM_LOAD( "gny8.cpu",     0x5000, 0x0800, CRC(e0bf7d00) SHA1(7afca3affa413179f4f59ce2cad89525cfa5efbc) )
	ROM_LOAD( "gny9.cpu",     0x6000, 0x0800, CRC(639bc81a) SHA1(91819d49099e438ac8c70920a787aeaed3ed82e9) )
	ROM_LOAD( "gny10.cpu",    0x7000, 0x0800, CRC(73764021) SHA1(bb2f62130142487afbd8d2540e2d4fe5bb67c4ee) )

	ROM_REGION(0x10000, "audio2", 0) /* second audio CPU */
	/* The original dump of this ROM was bad [FIXED BITS (x1xxxxxx)] */
	/* Since what's left is identical to the Sigma version, I'm assuming it's the same. */
	ROM_LOAD( "nyny11.snd",   0x7000, 0x0800, CRC(650450fc) SHA1(214693df394ca05eff5dbe1e800107d326ba80f6) )
ROM_END


ROM_START( warcadia )
	ROM_REGION(0x10000, "maincpu", 0)   /* main CPU */
	ROM_LOAD( "ar-01",        0xa800, 0x0800, CRC(7b7e8f27) SHA1(2bb1d07d87ad5b952de9460c840d7e8b59ed1b4a) )
	ROM_LOAD( "ar-02",        0xb000, 0x0800, CRC(81d9e172) SHA1(4279582f1edf54f0974fa277565d8ade6d9faa50) )
	ROM_LOAD( "ar-03",        0xb800, 0x0800, CRC(2c5feb05) SHA1(6f8952e7744ba7d7b8b345d67f546b504f7a3b30) )
	ROM_LOAD( "ar-04",        0xe000, 0x0800, CRC(66fcbd7f) SHA1(7b8c09593b7d0d25cbe0b28097d58772c32f13bb) )
	ROM_LOAD( "ar-05",        0xe800, 0x0800, CRC(b2320e20) SHA1(977afc2d26ef500eff4499e6bc61f14314b19130) )
	ROM_LOAD( "ar-06",        0xf000, 0x0800, CRC(27b79cc0) SHA1(2c5c3a9a09069751c5e9c23d0840ee4996006c0b) )
	ROM_LOAD( "ar-07",        0xf800, 0x0800, CRC(be77a477) SHA1(817c069855634dd844f0068d64bfbf1862980d6b) )

	ROM_REGION(0x10000, "audiocpu", 0)  /* first audio CPU */
	ROM_LOAD( "ar-08",        0x5000, 0x0800, CRC(38569b25) SHA1(887a9afaa65d0961097f7fb5f1ae390d40e9c164) )
	ROM_LOAD( "nyny09.092",   0x6000, 0x0800, CRC(a359c6f1) SHA1(1bc7b487581399908c3cec823733810fb6d944ce) )
	ROM_LOAD( "nyny10.091",   0x7000, 0x0800, CRC(a72a70fa) SHA1(deed7dec9cc43fa1d6c4854ba18169c894c9a2f0) )

	ROM_REGION(0x10000, "audio2", 0) /* second audio CPU */
	ROM_LOAD( "ar-11",        0x7000, 0x0800, CRC(208f4488) SHA1(533f8942e1c964cc88253e9dc4ec711f77607e4c) )
ROM_END

} // anonymous namespace


/*************************************
 *
 *  Game drivers
 *
 *************************************/

GAME( 1980, nyny,    0,    nyny, nyny, nyny_state, empty_init, ROT270, "Sigma Enterprises Inc.", "New York! New York!", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1980, nynyg,   nyny, nyny, nyny, nyny_state, empty_init, ROT270, "Sigma Enterprises Inc. (Gottlieb license)", "New York! New York! (Gottlieb)", MACHINE_IMPERFECT_SOUND  | MACHINE_SUPPORTS_SAVE )
GAME( 1982, warcadia,nyny, nyny, nyny, nyny_state, empty_init, ROT270, "Sigma Enterprises Inc.", "Waga Seishun no Arcadia", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )