text: // license:BSD-3-Clause
  // copyright-holders:David Haywood
  /***************************************************************************
  
    Tao Taido             (c) 1993 Video System
  
  
      driver by David Haywood - Dip Switches and Inputs by stephh
      based on other Video System drivers
  
  Stephh's notes (based on the games M68000 code and some tests) :
  
  0) all games
  
    - Don't trust the test mode ! It shows inputs for 4 players as well as
      3 buttons for each player, while the game is a 2 players game with only
      2 buttons (punch and kick) for each player.
      IMO, it's a leftover from a previous game.
      If you want to test all inputs, turn TAOTAIDO_SHOW_ALL_INPUTS to 1.
  
    - The "Buy-In" features allows a player to recover some energy and reset timer
      by pressing his "Start" button (provided he has at least one credit).
  
    - 'taotaido' allows to play a 2 players game with a single credit while
      this isn't possible with 'taotaida'.
      Now, telling which version is the newest one is another story ;)
  
    - 'taotaido' seems to show you how to do the special moves, 'taotaida' doesn't
      and they don't seem to work in the same way (unless this is a bug)
  
    - Coin buttons act differently depending on the "Coin Slot" Dip Switch :
  
        * "Coin Slot" Dip Switch set to "Same" :
  
            . COIN1 : adds coin(s)/credit(s) depending on "Coinage" Dip Switch
            . COIN2 : adds 1 credit
            . SERVICE1 : adds coin(s)/credit(s) depending on "Coinage" Dip Switch
  
        * "Coin Slot" Dip Switch set to "Individual" :
  
            . COIN1 : adds coin(s)/credit(s) for player 1 depending on "Coinage" Dip Switch
            . COIN2 : adds coin(s)/credit(s) for player 2 depending on "Coinage" Dip Switch
            . SERVICE1 : adds 1 credit for player 1
  
  ***************************************************************************/
  
  /* Tao Taido
  (c)1993 Video System
  
  CPU:    68000-16
  Sound:  Z80-B
          YM2610
  OSC:    14.31818MHz
          20.0000MHz
          32.0000MHz
  Chips:  VS9108
          VS920B
          VS9209 x2
  
  ****************************************************************************
  
  zooming might be wrong
  
  ***************************************************************************/
  
  #include "emu.h"
  #include "includes/taotaido.h"
  
  #include "cpu/z80/z80.h"
  #include "cpu/m68000/m68000.h"
  #include "machine/vs9209.h"
  #include "sound/2610intf.h"
  #include "screen.h"
  #include "speaker.h"
  
  
  #define TAOTAIDO_SHOW_ALL_INPUTS    0
  
  
  void taotaido_state::machine_start()
  {
  	membank("soundbank")->configure_entries(0, 4, memregion("audiocpu")->base(), 0x8000);
  }
  
  
  READ16_MEMBER(taotaido_state::pending_command_r)
  {
  	/* Only bit 0 is tested */
  	return m_soundlatch->pending_r();
  }
  
  WRITE8_MEMBER(taotaido_state::unknown_output_w)
  {
  	m_watchdog->write_line_ck(BIT(data, 7));
  
  	// Bits 5, 4 also used?
  }
  
  void taotaido_state::main_map(address_map &map)
  {
  	map(0x000000, 0x0fffff).rom();
  	map(0x800000, 0x803fff).ram().w(this, FUNC(taotaido_state::bgvideoram_w)).share("bgram");  // bg ram?
  	map(0xa00000, 0xa01fff).ram().share("spriteram");       // sprite ram
  	map(0xc00000, 0xc0ffff).ram().share("spriteram2");      // sprite tile lookup ram
  	map(0xfe0000, 0xfeffff).ram();                                     // main ram
  	map(0xffc000, 0xffcfff).ram().w("palette", FUNC(palette_device::write16)).share("palette");    // palette ram
  	map(0xffe000, 0xffe3ff).ram().share("scrollram");       // rowscroll / rowselect / scroll ram
  	map(0xffff80, 0xffff9f).rw("io1", FUNC(vs9209_device::read), FUNC(vs9209_device::write)).umask16(0x00ff);
  	map(0xffffa0, 0xffffbf).rw("io2", FUNC(vs9209_device::read), FUNC(vs9209_device::write)).umask16(0x00ff);
  	map(0xffff00, 0xffff0f).w(this, FUNC(taotaido_state::tileregs_w));
  	map(0xffff10, 0xffff11).nopw();                        // unknown
  	map(0xffff20, 0xffff21).nopw();                        // unknown - flip screen related
  	map(0xffff40, 0xffff47).w(this, FUNC(taotaido_state::sprite_character_bank_select_w));
  	map(0xffffc1, 0xffffc1).w(m_soundlatch, FUNC(generic_latch_8_device::write));        // seems right
  	map(0xffffe0, 0xffffe1).r(this, FUNC(taotaido_state::pending_command_r)); // guess - seems to be needed for all the sounds to work
  }
  
  /* sound cpu - same as aerofgt */
  
  
  WRITE8_MEMBER(taotaido_state::sh_bankswitch_w)
  {
  	membank("soundbank")->set_entry(data & 0x03);
  }
  
  void taotaido_state::sound_map(address_map &map)
  {
  	map(0x0000, 0x77ff).rom();
  	map(0x7800, 0x7fff).ram();
  	map(0x8000, 0xffff).bankr("soundbank");
  }
  
  void taotaido_state::sound_port_map(address_map &map)
  {
  	map.global_mask(0xff);
  	map(0x00, 0x03).rw("ymsnd", FUNC(ym2610_device::read), FUNC(ym2610_device::write));
  	map(0x04, 0x04).w(this, FUNC(taotaido_state::sh_bankswitch_w));
  	map(0x08, 0x08).w(m_soundlatch, FUNC(generic_latch_8_device::acknowledge_w));
  	map(0x0c, 0x0c).r(m_soundlatch, FUNC(generic_latch_8_device::read));
  }
  
  
  static INPUT_PORTS_START( taotaido )
  	PORT_START("P1")    /* 0xffff81.b */
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) // "Punch"
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // "Kick"
  #if TAOTAIDO_SHOW_ALL_INPUTS
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
  #else
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #endif
  	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
  
  	PORT_START("P2")    /* 0xffff83.b */
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) // "Punch"
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) // "Kick"
  #if TAOTAIDO_SHOW_ALL_INPUTS
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
  #else
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #endif
  	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
  
  	/* These inputs are only to fit the test mode - leftover from another game ? */
  	PORT_START("P3")    /* 0xffffa1.b */
  	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #if TAOTAIDO_SHOW_ALL_INPUTS
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(3)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(3)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(3)
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(3)
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3)
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3)
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(3)
  	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #endif
  
  	PORT_START("P4")    /* 0xffffa3.b */
  	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #if TAOTAIDO_SHOW_ALL_INPUTS
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(4)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(4)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(4)
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(4)
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(4)
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(4)
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(4)
  	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
  #endif
  
  	PORT_START("SYSTEM")    /* 0xffff85.b */
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )  // see notes
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
  #if TAOTAIDO_SHOW_ALL_INPUTS
  	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME(DEF_STR( Test )) PORT_CODE(KEYCODE_F1)
  #else
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SERVICE )    // "Test" in "test mode"
  #endif
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_TILT )       // not working ?
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )   // see notes - SERVICE in "test mode"
  	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )    // VBLANK ? The game freezes when ON
  
  	PORT_START("DSW1")  /* 0xffff87.b -> !0xfe2f6c.w or !0xfe30d0 */
  	PORT_DIPNAME( 0x01, 0x01, "Coin Slot" )
  	PORT_DIPSETTING(    0x01, "Same" )
  	PORT_DIPSETTING(    0x00, "Individual" )
  	PORT_DIPNAME( 0x0e, 0x0e, DEF_STR( Coinage ) )
  	PORT_DIPSETTING(    0x0a, DEF_STR( 3C_1C ) )
  	PORT_DIPSETTING(    0x0c, DEF_STR( 2C_1C ) )
  	PORT_DIPSETTING(    0x0e, DEF_STR( 1C_1C ) )
  	PORT_DIPSETTING(    0x08, DEF_STR( 1C_2C ) )
  	PORT_DIPSETTING(    0x06, DEF_STR( 1C_3C ) )
  	PORT_DIPSETTING(    0x04, DEF_STR( 1C_4C ) )
  	PORT_DIPSETTING(    0x02, DEF_STR( 1C_5C ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( 1C_6C ) )
  	PORT_DIPUNUSED( 0x10, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x20, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x40, IP_ACTIVE_LOW )
  	PORT_DIPNAME( 0x80, 0x80, "2 Coins to Start, 1 to Continue" )
  	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  
  	PORT_START("DSW2")  /* 0xffff89.b -> !0xfe73c2.w or !0xfe751c.w */
  	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )  // check code at 0x0963e2 or 0x845e2
  	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPUNUSED( 0x02, IP_ACTIVE_LOW )
  	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Free_Play ) )
  	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x18, 0x18, DEF_STR( Difficulty ) )
  	PORT_DIPSETTING(    0x10, DEF_STR( Easy ) )
  	PORT_DIPSETTING(    0x18, DEF_STR( Normal ) )
  	PORT_DIPSETTING(    0x08, DEF_STR( Hard ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
  	PORT_SERVICE( 0x20, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x40, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x80, IP_ACTIVE_LOW )
  
  	PORT_START("DSW3")  /* 0xffff8b.b -> !0xfe2f94.w or !0xfe30f8.w */
  	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )  // doesn't seem to be demo sounds
  	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x01, DEF_STR( On ) )
  	PORT_DIPNAME( 0x02, 0x02, "Buy In" )            // see notes
  	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
  	PORT_DIPSETTING(    0x02, DEF_STR( Yes ) )
  	PORT_DIPUNUSED( 0x04, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x08, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x10, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x20, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x40, IP_ACTIVE_LOW )
  	PORT_DIPUNUSED( 0x80, IP_ACTIVE_LOW )
  
  	PORT_START("JP")    /* Jumpers (0xffff8f.b) */
  	PORT_DIPNAME( 0x0f, 0x08, DEF_STR( Region ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( USA ) )              // also (c) Mc O'River Inc
  	PORT_DIPSETTING(    0x01, DEF_STR( Japan ) )
  	PORT_DIPSETTING(    0x02, "Hong Kong/Taiwan" )
  //  PORT_DIPSETTING(    0x03, DEF_STR( Japan ) )
  	PORT_DIPSETTING(    0x04, DEF_STR( Korea ) )
  //  PORT_DIPSETTING(    0x05, DEF_STR( Japan ) )
  //  PORT_DIPSETTING(    0x06, DEF_STR( Japan ) )
  //  PORT_DIPSETTING(    0x07, DEF_STR( Japan ) )
  	PORT_DIPSETTING(    0x08, DEF_STR( World ) )
  	/* 0x09 to 0x0f : DEF_STR( Japan ) */
  INPUT_PORTS_END
  
  static INPUT_PORTS_START( taotaido3 )
  	PORT_INCLUDE(taotaido)
  
  	PORT_MODIFY("P1")
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
  
  	PORT_MODIFY("P2")
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
  
  	PORT_MODIFY("DSW3")
  	PORT_DIPNAME( 0x04, 0x04, "Number of Buttons" )
  	PORT_DIPSETTING(    0x00, "2" )
  	PORT_DIPSETTING(    0x04, "3" )
  INPUT_PORTS_END
  
  static INPUT_PORTS_START( taotaido6 )
  	PORT_INCLUDE(taotaido)
  
  	PORT_MODIFY("P1")
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
  
  	PORT_MODIFY("P2")
  	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
  
  	PORT_MODIFY("P3")
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(1)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(1)
  	PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNKNOWN )
  
  	PORT_MODIFY("P4")
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2)
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(2)
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(2)
  	PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNKNOWN )
  
  	PORT_MODIFY("DSW3")
  	PORT_DIPNAME( 0x08, 0x08, "Debug Info 1" )
  	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x10, 0x10, "Debug Info 2" )
  	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x20, 0x20, "Debug Info 3" )
  	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x40, 0x40, "Debug Info 4" )
  	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  INPUT_PORTS_END
  
  
  static const gfx_layout layout =
  {
  	16,16,
  	RGN_FRAC(1,1),
  	4,
  	{ 0, 1, 2, 3 },
  	{ 1*4, 0*4, 3*4, 2*4, 5*4, 4*4, 7*4, 6*4,
  			9*4, 8*4, 11*4, 10*4, 13*4, 12*4, 15*4, 14*4 },
  	{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
  			8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
  	128*8
  };
  
  static GFXDECODE_START( taotaido )
  	GFXDECODE_ENTRY( "gfx1", 0, layout,  0x000, 256  ) /* sprites */
  	GFXDECODE_ENTRY( "gfx2", 0, layout,  0x300, 256  ) /* bg tiles */
  GFXDECODE_END
  
  
  
  MACHINE_CONFIG_START(taotaido_state::taotaido)
  	MCFG_CPU_ADD("maincpu", M68000, 32000000/2)
  	MCFG_CPU_PROGRAM_MAP(main_map)
  	MCFG_CPU_VBLANK_INT_DRIVER("screen", taotaido_state,  irq1_line_hold)
  
  	MCFG_CPU_ADD("audiocpu", Z80,20000000/4) // ??
  	MCFG_CPU_PROGRAM_MAP(sound_map)
  	MCFG_CPU_IO_MAP(sound_port_map)
  								/* IRQs are triggered by the YM2610 */
  
  	MCFG_DEVICE_ADD("io1", VS9209, 0)
  	MCFG_VS9209_IN_PORTA_CB(IOPORT("P1"))
  	MCFG_VS9209_IN_PORTB_CB(IOPORT("P2"))
  	MCFG_VS9209_IN_PORTC_CB(IOPORT("SYSTEM"))
  	MCFG_VS9209_IN_PORTD_CB(IOPORT("DSW1"))
  	MCFG_VS9209_IN_PORTE_CB(IOPORT("DSW2"))
  	MCFG_VS9209_IN_PORTF_CB(IOPORT("DSW3"))
  	MCFG_VS9209_OUT_PORTG_CB(WRITE8(taotaido_state, unknown_output_w))
  	MCFG_VS9209_IN_PORTH_CB(IOPORT("JP"))
  
  	MCFG_DEVICE_ADD("io2", VS9209, 0)
  	MCFG_VS9209_IN_PORTA_CB(IOPORT("P3"))                   // used only by taotaida
  	MCFG_VS9209_IN_PORTB_CB(IOPORT("P4"))                   // used only by taotaida
  
  	MCFG_DEVICE_ADD("watchdog", MB3773, 0)
  
  	MCFG_GFXDECODE_ADD("gfxdecode", "palette", taotaido)
  
  	MCFG_SCREEN_ADD("screen", RASTER)
  	MCFG_SCREEN_REFRESH_RATE(60)
  	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
  	MCFG_SCREEN_SIZE(40*8, 32*8)
  	MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 0*8, 28*8-1)
  	MCFG_SCREEN_UPDATE_DRIVER(taotaido_state, screen_update)
  	MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(taotaido_state, screen_vblank))
  	MCFG_SCREEN_PALETTE("palette")
  
  	MCFG_PALETTE_ADD("palette", 0x800)
  	MCFG_PALETTE_FORMAT(xRRRRRGGGGGBBBBB)
  
  	MCFG_DEVICE_ADD("vsystem_spr", VSYSTEM_SPR, 0)
  	MCFG_VSYSTEM_SPR_SET_TILE_INDIRECT( taotaido_state, tile_callback )
  	MCFG_VSYSTEM_SPR_SET_GFXREGION(0)
  	MCFG_VSYSTEM_SPR_GFXDECODE("gfxdecode")
  
  	/* sound hardware */
  	MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
  
  	MCFG_GENERIC_LATCH_8_ADD("soundlatch")
  	MCFG_GENERIC_LATCH_DATA_PENDING_CB(INPUTLINE("audiocpu", INPUT_LINE_NMI))
  	MCFG_GENERIC_LATCH_SEPARATE_ACKNOWLEDGE(true)
  
  	MCFG_SOUND_ADD("ymsnd", YM2610, 8000000)
  	MCFG_YM2610_IRQ_HANDLER(INPUTLINE("audiocpu", 0))
  	MCFG_SOUND_ROUTE(0, "lspeaker",  0.25)
  	MCFG_SOUND_ROUTE(0, "rspeaker", 0.25)
  	MCFG_SOUND_ROUTE(1, "lspeaker",  1.0)
  	MCFG_SOUND_ROUTE(2, "rspeaker", 1.0)
  MACHINE_CONFIG_END
  
  
  ROM_START( taotaido )
  	ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
  	ROM_LOAD16_WORD_SWAP( "1-u90.bin", 0x00000, 0x80000, CRC(a3ee30da) SHA1(920a83ce9192bf785bffdc041e280f1a420de4c9) )
  	ROM_LOAD16_WORD_SWAP( "2-u91.bin", 0x80000, 0x80000, CRC(30b7e4fb) SHA1(15e1f6d252c736fdee33b691a0a1a45f0307bffb) )
  
  	ROM_REGION( 0x20000, "audiocpu", 0 ) /* z80 Code */
  	ROM_LOAD( "3-u113.bin", 0x000000, 0x20000, CRC(a167c4e4) SHA1(d32184e7040935cd440d4d82c66491b710ec87a8) )
  
  	ROM_REGION( 0x100000, "ymsnd.deltat", 0 ) /* sound samples */
  	ROM_LOAD( "u104.bin",     0x000000, 0x100000, CRC(e89387a9) SHA1(1deeee056af367d1a5aa0722dd3d6c68a82d0489) )
  
  	ROM_REGION( 0x200000, "ymsnd", 0 ) /* sound samples */
  	ROM_LOAD( "u127.bin",     0x00000, 0x200000, CRC(0cf0cb23) SHA1(a87e7159db2fa0d50446cbf45ec9fbf585b8f396) )
  
  	ROM_REGION( 0x600000, "gfx1", 0 ) /* Sprites */
  	ROM_LOAD( "u86.bin", 0x000000, 0x200000, CRC(908e251e) SHA1(5a135787f3263bfb195f8fd1e814c580d840531f) )
  	ROM_LOAD( "u87.bin", 0x200000, 0x200000, CRC(c4290ba6) SHA1(4132ffad4668f1dd3f708f009e18435e7dd60120) )
  	ROM_LOAD( "u88.bin", 0x400000, 0x200000, CRC(407d9aeb) SHA1(d532c7b80f6c192dba86542fb6eb3ef24fbbbdb9) )
  
  	ROM_REGION( 0x200000, "gfx2", 0 ) /* BG Tiles */
  	ROM_LOAD( "u15.bin", 0x000000, 0x200000, CRC(e95823e9) SHA1(362583944ad4fdde4f9e29928cf34376c7ad931f) )
  ROM_END
  
  ROM_START( taotaidoa )
  	ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
  	ROM_LOAD16_WORD_SWAP( "tt0-u90.bin", 0x00000, 0x80000, CRC(69d4cca7) SHA1(f1aba74fef8fe4271d19763f428fc0e2674d08b3) )
  	ROM_LOAD16_WORD_SWAP( "tt1-u91.bin", 0x80000, 0x80000, CRC(41025469) SHA1(fa3a424ca3ecb513f418e436e4191ff76f6a0de1) )
  
  	ROM_REGION( 0x20000, "audiocpu", 0 ) /* z80 Code */
  	ROM_LOAD( "3-u113.bin", 0x000000, 0x20000, CRC(a167c4e4) SHA1(d32184e7040935cd440d4d82c66491b710ec87a8) )
  
  	ROM_REGION( 0x100000, "ymsnd.deltat", 0 ) /* sound samples */
  	ROM_LOAD( "u104.bin",     0x000000, 0x100000, CRC(e89387a9) SHA1(1deeee056af367d1a5aa0722dd3d6c68a82d0489) )
  
  	ROM_REGION( 0x200000, "ymsnd", 0 ) /* sound samples */
  	ROM_LOAD( "u127.bin",     0x00000, 0x200000, CRC(0cf0cb23) SHA1(a87e7159db2fa0d50446cbf45ec9fbf585b8f396) )
  
  	ROM_REGION( 0x600000, "gfx1", 0 ) /* Sprites */
  	ROM_LOAD( "u86.bin", 0x000000, 0x200000, CRC(908e251e) SHA1(5a135787f3263bfb195f8fd1e814c580d840531f) )
  	ROM_LOAD( "u87.bin", 0x200000, 0x200000, CRC(c4290ba6) SHA1(4132ffad4668f1dd3f708f009e18435e7dd60120) )
  	ROM_LOAD( "u88.bin", 0x400000, 0x200000, CRC(407d9aeb) SHA1(d532c7b80f6c192dba86542fb6eb3ef24fbbbdb9) )
  
  	ROM_REGION( 0x200000, "gfx2", 0 ) /* BG Tiles */
  	ROM_LOAD( "u15.bin", 0x000000, 0x200000, CRC(e95823e9) SHA1(362583944ad4fdde4f9e29928cf34376c7ad931f) )
  ROM_END
  
  ROM_START( taotaido3 )
  	ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
  	ROM_LOAD16_WORD_SWAP( "1.u90", 0x00000, 0x80000, CRC(27c5c626) SHA1(f2aea45a15db24c914aa889be21cd8994d138a59) )
  	ROM_LOAD16_WORD_SWAP( "2.u91", 0x80000, 0x80000, CRC(71a4e538) SHA1(608c2d77aa8c1c4bb39a419bdfdf73a2fd587403) )
  
  	ROM_REGION( 0x20000, "audiocpu", 0 ) /* z80 Code */
  	ROM_LOAD( "3-u113.bin", 0x000000, 0x20000, CRC(a167c4e4) SHA1(d32184e7040935cd440d4d82c66491b710ec87a8) )
  
  	ROM_REGION( 0x100000, "ymsnd.deltat", 0 ) /* sound samples */
  	ROM_LOAD( "u104.bin",     0x000000, 0x100000, CRC(e89387a9) SHA1(1deeee056af367d1a5aa0722dd3d6c68a82d0489) )
  
  	ROM_REGION( 0x200000, "ymsnd", 0 ) /* sound samples */
  	ROM_LOAD( "u127.bin",     0x00000, 0x200000, CRC(0cf0cb23) SHA1(a87e7159db2fa0d50446cbf45ec9fbf585b8f396) )
  
  	ROM_REGION( 0x600000, "gfx1", 0 ) /* Sprites */
  	ROM_LOAD( "u86.bin", 0x000000, 0x200000, CRC(908e251e) SHA1(5a135787f3263bfb195f8fd1e814c580d840531f) )
  	ROM_LOAD( "u87.bin", 0x200000, 0x200000, CRC(c4290ba6) SHA1(4132ffad4668f1dd3f708f009e18435e7dd60120) )
  	ROM_LOAD( "u88.bin", 0x400000, 0x200000, CRC(407d9aeb) SHA1(d532c7b80f6c192dba86542fb6eb3ef24fbbbdb9) )
  
  	ROM_REGION( 0x200000, "gfx2", 0 ) /* BG Tiles */
  	ROM_LOAD( "u15.bin", 0x000000, 0x200000, CRC(e95823e9) SHA1(362583944ad4fdde4f9e29928cf34376c7ad931f) )
  ROM_END
  
  GAME( 1993, taotaido,  0,        taotaido, taotaido,  taotaido_state, 0, ROT0, "Video System Co.", "Tao Taido (2 button version)",   MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
  GAME( 1993, taotaidoa, taotaido, taotaido, taotaido6, taotaido_state, 0, ROT0, "Video System Co.", "Tao Taido (6 button version)",   MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE ) // maybe a prototype? has various debug features
  GAME( 1993, taotaido3, taotaido, taotaido, taotaido3, taotaido_state, 0, ROT0, "Video System Co.", "Tao Taido (2/3 button version)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
  