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

Speed Attack! (c) 1984 Seta Kikaku Corp.

driver by Pierpaolo Prazzoli & Angelo Salese, based on early work by David Haywood

TODO:
 - Coinage Dip Switch doesn't match the readme? Also there are wrong coin insertions even
   with the bit impulse macro. There are chances that there's a circuitry which controls
   both...

How to play:
 - A to D selects a card.
 - Turn takes one or more cards into your hand (depends on how many cards you
   putted on the stacks).
 - Left & right puts a card on one of the two stacks.

Notes:
 - According to the text gfx rom, there are also a Taito and a KKK versions out there.

------------------------------------------------------------------------------------------
SPEED ATTACK!
(c)SETA

CPU :Z80 x 1
SOUND   :AY-3-8910 x 1
XTAL    :12MHZ

SETA CUSTOM ?
AC-002 , AC-003

CB1-1   :1C
CB0-2   :1D
CB1-3   :1F
CB0-4   :1H
CB0-5   :7C
CB0-6   :7D
CB0-7   :7E

CB1.BPR :7L TBP18S030
CB2.BPR :6K 82S129

----------------------------------------------------------

DIP SWITCH 8BIT (Default: ALL ON)

SW 1,2 : COIN CREDIT   LL:1-1 HL:1-2 LH:1-5 HH:1-10
SW 3,4 : LEVEL LL:EASY -> LH -> HL -> HH:HARD
SW 5,6 : NOT USE
SW 7   : FLIP SCREEN H:FLIP
SW 8   : TEST MODE H:TEST

   PARTS SIDE | SOLDIER SIDE
  ----------------------------
      GND   | 1|    GND
      GND   | 2|    GND
      +5V   | 3|    +5V
            | 4|
     +12V   | 5|   +12V
  SPEAKER(+)| 6|  SPEAKER(-)
     SYNC   | 7| COIN COUNTER
       B    | 8|  SERVICE
       G    | 9|  COIN SW
       R    |10|
     PD 6   |11|   PS 6 (NOT USE)
     PD 5   |12|   PS 5 (NOT USE)
     PD 4   |13|   PS 4
     PD 3   |14|   PS 3
     PD 1   |15|   PS 1
     PD 2   |16|   PS 2
            |17|
            |18|

PS / PD :  key matrix
*****************************************************************************************/

#include "driver.h"
#include "sound/ay8910.h"

static UINT8 mux_data;

extern WRITE8_HANDLER( speedatk_videoram_w );
extern WRITE8_HANDLER( speedatk_colorram_w );
extern WRITE8_HANDLER( speedatk_flip_screen_w );
extern PALETTE_INIT( speedatk );
extern VIDEO_START( speedatk );
extern VIDEO_UPDATE( speedatk );

/* This "key matrix" device maps some buttons with multiple bit activations,for        *
 * example pressing button A + button B it causes an output of button C.               *
 * This function converts the bit inputs of this game into the usual way MAME does,and *
 * it handles the multiplexer device between player one and two.                       */
static READ8_HANDLER( key_matrix_r )
{
	switch(mux_data)
	{
		case 0x02:
		{
			switch(readinputport(1))
			{
				case 0x002: return 0x02;
				case 0x001: return 0x01;
				case 0x004: return 0x03;
				case 0x008: return 0x04;
				case 0x010: return 0x07;
				case 0x020: return 0x08;
				case 0x040: return 0x09;
				case 0x080: return 0x0a;
				case 0x100: return 0x10;
				case 0x200: return 0x20;
				case 0x400: return 0x40;
				case 0x800: return 0x80;
				default:	return 0x00;
			}
		}
		case 0x04:
		{
			switch(readinputport(2))
			{
				case 0x002: return 0x02;
				case 0x001: return 0x01;
		 		case 0x004: return 0x03;
		 		case 0x008: return 0x04;
				case 0x010: return 0x07;
				case 0x020: return 0x08;
				case 0x040: return 0x09;
				case 0x080: return 0x0a;
				case 0x100: return 0x10;
				case 0x200: return 0x20;
				case 0x400: return 0x40;
				case 0x800: return 0x80;
				default:	return 0x00;
			}
		}
		default: logerror("Input reads with mux_data = %x\n",mux_data);
	}

	return 0x00;
}

static WRITE8_HANDLER( key_matrix_w )
{
	mux_data = data;
}

static READ8_HANDLER( read_8001 )
{
	return 1;
}

static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM)
	AM_RANGE(0x8000, 0x8000) AM_READ(key_matrix_r)
	AM_RANGE(0x8001, 0x8001) AM_READ(read_8001)
	AM_RANGE(0x8588, 0x858f) AM_READ(MRA8_RAM)
	AM_RANGE(0x8800, 0x8bff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8c00, 0x8fff) AM_READ(MRA8_RAM)
	AM_RANGE(0xa000, 0xa3ff) AM_READ(MRA8_RAM)
	AM_RANGE(0xb000, 0xb3ff) AM_READ(MRA8_RAM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM)
	AM_RANGE(0x8000, 0x8000) AM_WRITE(key_matrix_w)
	AM_RANGE(0x8588, 0x858f) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x8800, 0x8bff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x8c00, 0x8fff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0xa000, 0xa3ff) AM_WRITE(speedatk_videoram_w) AM_BASE(&videoram)
	AM_RANGE(0xb000, 0xb3ff) AM_WRITE(speedatk_colorram_w) AM_BASE(&colorram)
ADDRESS_MAP_END

static ADDRESS_MAP_START( readport, ADDRESS_SPACE_IO, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
	AM_RANGE(0x40, 0x40) AM_READ(input_port_0_r)
	/* are these not used? after they're read it sets bit 7 */
	AM_RANGE(0x60, 0x60) AM_READ(MRA8_NOP)
	AM_RANGE(0x61, 0x61) AM_READ(MRA8_NOP)
	AM_RANGE(0x68, 0x68) AM_READ(MRA8_NOP)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writeport, ADDRESS_SPACE_IO, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
	AM_RANGE(0x01, 0x01) AM_WRITE(speedatk_flip_screen_w)
	AM_RANGE(0x40, 0x40) AM_WRITE(AY8910_control_port_0_w)
	AM_RANGE(0x41, 0x41) AM_WRITE(AY8910_write_port_0_w)
ADDRESS_MAP_END

static INPUT_PORTS_START( speedatk )
	PORT_START
	PORT_SERVICE( 0x01, IP_ACTIVE_HIGH )
	PORT_DIPNAME( 0x02, 0x00, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x02, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unused ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x04, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unused ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x08, DEF_STR( On ) )
	PORT_DIPNAME( 0x30, 0x00, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x30, DEF_STR( Hardest ) )
	/* Doesn't work? */
	PORT_DIPNAME( 0xc0, 0x00, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x40, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0xc0, "1 Coin/10 Credits" )

	PORT_START
	PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) //P1 A
	PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) //P1 B
	PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) //P1 C
	PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1) //P1 D
	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
	PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
	PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(1) //P1 Turn
	PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x800, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_IMPULSE(2)

	PORT_START
	PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) //P2 A
	PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) //P2 B
	PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) //P2 C
	PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2) //P2 D
	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
	PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
	PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(2) //P2 Turn
	PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x0800, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_IMPULSE(2)
INPUT_PORTS_END

static const gfx_layout charlayout_1bpp =
{
	8,8,
	RGN_FRAC(1,1),
	3,
	{ 0, 0, 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8
};

static const gfx_layout charlayout_3bpp =
{
	8,8,
	RGN_FRAC(1,3),
	3,
	{ RGN_FRAC(2,3), RGN_FRAC(1,3), RGN_FRAC(0,3) },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8
};


static GFXDECODE_START( speedatk )
	GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout_1bpp,   0, 32 )
	GFXDECODE_ENTRY( REGION_GFX2, 0, charlayout_3bpp,   0, 32 )
GFXDECODE_END

static MACHINE_DRIVER_START( speedatk )
	MDRV_CPU_ADD(Z80,12000000/2)
	MDRV_CPU_PROGRAM_MAP(readmem,writemem)
	MDRV_CPU_IO_MAP(readport,writeport)
	MDRV_CPU_VBLANK_INT(irq0_line_hold,1)

	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(320, 256)
	MDRV_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 0*8, 29*8-1)

	MDRV_GFXDECODE(speedatk)
	MDRV_PALETTE_LENGTH(16)
	MDRV_COLORTABLE_LENGTH(0x100)
	MDRV_PALETTE_INIT(speedatk)

	MDRV_VIDEO_START(speedatk)
	MDRV_VIDEO_UPDATE(speedatk)

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_MONO("mono")

	MDRV_SOUND_ADD(AY8910, 4000000)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END

ROM_START( speedatk )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "cb1-1",        0x0000, 0x2000, CRC(df988e05) SHA1(0ec91c5f2e1adf952a4fe7aede591e763773a75b) )
	ROM_LOAD( "cb0-2",        0x2000, 0x2000, CRC(be949154) SHA1(8a594a7ebdc8456290919163f7ea4ccb0d1f4edb) )
	ROM_LOAD( "cb1-3",        0x4000, 0x2000, CRC(741a5949) SHA1(7f7bebd4fb73fef9aa28549d100f632c442ac9b3) )
	ROM_LOAD( "cb0-4",        0x6000, 0x2000, CRC(53a9c0c8) SHA1(cd0fd94411dabf09828c1f629891158c40794127) )

	ROM_REGION( 0x2000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "cb0-7",        0x0000, 0x2000, CRC(a86007b5) SHA1(8e5cab76c37a8d53e1355000cd1a0a85ffae0e8c) )

	ROM_REGION( 0x6000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "cb0-5",        0x0000, 0x2000, CRC(47a966e7) SHA1(fdaa0f88656afc431bae367679ce6298fa962e0f) )
	ROM_LOAD( "cb0-6",        0x2000, 0x2000, CRC(cc1da937) SHA1(1697bb008bfa5c33a282bd470ac39c324eea7509) )
	ROM_COPY( REGION_GFX2,    0x0000, 0x4000, 0x1000 ) /* Fill the blank space with cards gfx */
	ROM_COPY( REGION_GFX1,    0x1000, 0x5000, 0x1000 ) /* Gfx from cb0-7 */

	ROM_REGION( 0x0120, REGION_PROMS, 0 )
	ROM_LOAD( "cb1.bpr",      0x0000, 0x0020, CRC(a0176c23) SHA1(133fb9eef8a6595cac2dcd7edce4789899a59e84) ) /* color PROM */
	ROM_LOAD( "cb2.bpr",      0x0020, 0x0100, CRC(a604cf96) SHA1(a4ef6e77dcd3abe4c27e8e636222a5ee711a51f5) ) /* lookup table */
ROM_END

GAME( 1984, speedatk, 0, speedatk, speedatk, 0, ROT0, "Seta Kikaku Corp.", "Speed Attack!", 0 )