/*
Car Jamboree
Omori Electric CAD (OEC) 1981

c14                c.d19
c13                c.d18           c10
c12                                c9
c11         2125   2125
            2125   2125
            2125   2125  2114 2114
            2125   2125  2114 2114
            2125   2125            c8
            2125   2125            c7
                                   c6
                                   c5
                                   c4
                                   c3
5101                               c2
5101                               c1
                                   6116
18.432MHz
          6116
Z80A      c15
                                   Z80A
       8910         SW
       8910

Notes:

- sound cpu speed chosen from coin error countdown, 1.536 MHz is too fast
  as it loses synchronisation with the onscreen timer

- some sprite glitches from sprite number/colour changes happening on
  different frames, possibly original behaviour. eg cars changing colour
  just before exploding, animals displaying as the wrong sprite for one
  frame when entering the arena

- colours are wrong, sprites and characters only using one of the proms

- background colour calculation is a guess
*/

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

WRITE8_HANDLER( carjmbre_flipscreen_w );
WRITE8_HANDLER( carjmbre_bgcolor_w );
WRITE8_HANDLER( carjmbre_videoram_w );

PALETTE_INIT( carjmbre );
VIDEO_START( carjmbre );
VIDEO_UPDATE( carjmbre );


static ADDRESS_MAP_START( carjmbre_readmem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM)
	AM_RANGE(0x8000, 0x87ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8800, 0x8800) AM_READ(MRA8_NOP)			//?? possibly watchdog
	AM_RANGE(0x9000, 0x97ff) AM_READ(videoram_r)
	AM_RANGE(0xa000, 0xa000) AM_READ(input_port_0_r)
	AM_RANGE(0xa800, 0xa800) AM_READ(input_port_1_r)
	AM_RANGE(0xb800, 0xb800) AM_READ(input_port_2_r)
ADDRESS_MAP_END

static ADDRESS_MAP_START( carjmbre_writemem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM)
	AM_RANGE(0x8000, 0x87ff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x8803, 0x8803) AM_WRITE(interrupt_enable_w)
	AM_RANGE(0x8805, 0x8806) AM_WRITE(carjmbre_bgcolor_w)	//guess
	AM_RANGE(0x8807, 0x8807) AM_WRITE(carjmbre_flipscreen_w)
	AM_RANGE(0x8fc1, 0x8fc1) AM_WRITE(MWA8_NOP)			//overrun during initial screen clear
	AM_RANGE(0x8fe1, 0x8fe1) AM_WRITE(MWA8_NOP)			//overrun during initial screen clear
	AM_RANGE(0x9000, 0x97ff) AM_WRITE(carjmbre_videoram_w) AM_BASE(&videoram)
	AM_RANGE(0x9800, 0x985f) AM_WRITE(spriteram_w) AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
	AM_RANGE(0x9880, 0x98df) AM_WRITE(MWA8_RAM)			//spriteram mirror
	AM_RANGE(0xb800, 0xb800) AM_WRITE(soundlatch_w)
ADDRESS_MAP_END

static ADDRESS_MAP_START( carjmbre_sound_readmem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_READ(MRA8_ROM)
	AM_RANGE(0x1000, 0x10ff) AM_READ(MRA8_NOP)			//look to be stray reads from 10/12/14/16/18xx
	AM_RANGE(0x1200, 0x12ff) AM_READ(MRA8_NOP)
	AM_RANGE(0x1400, 0x14ff) AM_READ(MRA8_NOP)
	AM_RANGE(0x1600, 0x16ff) AM_READ(MRA8_NOP)
	AM_RANGE(0x1800, 0x18ff) AM_READ(MRA8_NOP)
	AM_RANGE(0x2000, 0x27ff) AM_READ(MRA8_RAM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( carjmbre_sound_writemem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_WRITE(MWA8_ROM)
	AM_RANGE(0x2000, 0x27ff) AM_WRITE(MWA8_RAM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( carjmbre_sound_readport, ADDRESS_SPACE_IO, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
	AM_RANGE(0x00, 0x00) AM_READ(soundlatch_r)
	AM_RANGE(0x24, 0x24) AM_READ(MRA8_NOP)				//??
ADDRESS_MAP_END

static ADDRESS_MAP_START( carjmbre_sound_writeport, ADDRESS_SPACE_IO, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
	AM_RANGE(0x10, 0x10) AM_WRITE(MWA8_NOP)				//?? written on init/0xff sound command reset
	AM_RANGE(0x20, 0x20) AM_WRITE(AY8910_control_port_0_w)
	AM_RANGE(0x21, 0x21) AM_WRITE(AY8910_write_port_0_w)
	AM_RANGE(0x22, 0x22) AM_WRITE(MWA8_NOP)				//?? written before and after 0x21 with same value
	AM_RANGE(0x30, 0x30) AM_WRITE(AY8910_control_port_1_w)
	AM_RANGE(0x31, 0x31) AM_WRITE(AY8910_write_port_1_w)
	AM_RANGE(0x32, 0x32) AM_WRITE(MWA8_NOP)				//?? written before and after 0x31 with same value
ADDRESS_MAP_END

static INPUT_PORTS_START( carjmbre )
	PORT_START_TAG("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )		//coin error if held high for 1s
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )		//or if many coins inserted quickly
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SERVICE1 )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY

	PORT_START_TAG("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL

	PORT_START_TAG("IN2")
	PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_6C ) )
	PORT_DIPNAME( 0x18, 0x00, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "3" )
	PORT_DIPSETTING(    0x08, "4" )
	PORT_DIPSETTING(    0x10, "5" )
	PORT_DIPSETTING(    0x18, "250 (Cheat)")
	PORT_DIPNAME( 0x20, 0x00, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x00, "10k, then every 100k" )
	PORT_DIPSETTING(    0x20, "20k, then every 100k" )
	PORT_DIPNAME( 0x40, 0x00, DEF_STR( Allow_Continue ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x40, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )
INPUT_PORTS_END

static const gfx_layout carjmbre_charlayout =
{
	8,8,
	RGN_FRAC(2,4),
	2,
	{ RGN_FRAC(0,4), RGN_FRAC(2,4) },
	{ STEP8(0,1) },
	{ STEP8(0,8) },
	8*8
};

static const gfx_layout carjmbre_spritelayout =
{
	16,16,
	RGN_FRAC(1,4),
	2,
	{ RGN_FRAC(2,4), RGN_FRAC(0,4) },
	{ STEP8(0,1), STEP8(256*16*8,1) },
	{ STEP16(0,8) },
	16*8
};

static GFXDECODE_START( carjmbre )
	GFXDECODE_ENTRY( REGION_GFX1, 0, carjmbre_charlayout,   0, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0, carjmbre_spritelayout, 0, 16 )
GFXDECODE_END

static MACHINE_DRIVER_START( carjmbre )

	/* basic machine hardware */
	MDRV_CPU_ADD(Z80,18432000/6)
	MDRV_CPU_PROGRAM_MAP(carjmbre_readmem,carjmbre_writemem)
	MDRV_CPU_VBLANK_INT(nmi_line_pulse,1)

	MDRV_CPU_ADD(Z80, 1500000)
	/* audio CPU */
	MDRV_CPU_PROGRAM_MAP(carjmbre_sound_readmem,carjmbre_sound_writemem)
	MDRV_CPU_IO_MAP(carjmbre_sound_readport,carjmbre_sound_writeport)
	MDRV_CPU_VBLANK_INT(irq0_line_hold,1)

	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_60HZ_VBLANK_DURATION)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(32*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
	MDRV_GFXDECODE(carjmbre)
	MDRV_PALETTE_LENGTH(64)
	MDRV_COLORTABLE_LENGTH(64)

	MDRV_PALETTE_INIT(carjmbre)
	MDRV_VIDEO_START(carjmbre)
	MDRV_VIDEO_UPDATE(carjmbre)

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

	MDRV_SOUND_ADD(AY8910, 1500000)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.12)

	MDRV_SOUND_ADD(AY8910, 1500000)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.12)
MACHINE_DRIVER_END

ROM_START( carjmbre )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "c1",      0x0000, 0x1000, CRC(62b21739) SHA1(710e5c52f27603aa8f864f6f28d7272f21271d60) )
	ROM_LOAD( "c2",      0x1000, 0x1000, CRC(9ab1a0fa) SHA1(519cf67b98e62b2b42232788ba01ab6637880afc) )
	ROM_LOAD( "c3",      0x2000, 0x1000, CRC(bb29e100) SHA1(93e3cfcf7f8b0b36327f402d9a64c04c3b2c7549) )
	ROM_LOAD( "c4",      0x3000, 0x1000, CRC(c63d8f97) SHA1(9f08fd1cd24a1fb4011864c06580985e009d9af4) )
	ROM_LOAD( "c5",      0x4000, 0x1000, CRC(4d593942) SHA1(30cc649a4be3d7f3705f55d8d0dadb0b63d59ec9) )
	ROM_LOAD( "c6",      0x5000, 0x1000, CRC(fb576963) SHA1(5bf5c54a7c12aa55272629c12b414bf49cda0f1f) )
	ROM_LOAD( "c7",      0x6000, 0x1000, CRC(2b8c4511) SHA1(428a48d6b14455d66720a115bc5f35293dc50de7) )
	ROM_LOAD( "c8",      0x7000, 0x1000, CRC(51cc22a7) SHA1(f614368bfee04f084c70bf145801ac46e5631acb) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "c15",     0x0000, 0x1000, CRC(7d7779d1) SHA1(f8f5246be4cc9632076d3330fc3d3343b911dfee) )

	ROM_REGION( 0x2000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "c9",     0x0000, 0x1000, CRC(2accb821) SHA1(ce2804536fc1abd3377dc864c8c9976ca28c1b6e) )
	ROM_LOAD( "c10",    0x1000, 0x1000, CRC(75ddbe56) SHA1(5e1363967a822265618793ccb74bf3ef5e0e00b5) )

	ROM_REGION( 0x4000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "c11",    0x0000, 0x1000, CRC(d90cd126) SHA1(7ee110cf19b45ee654016ba0ce92f3db6ea2ed92) )
	ROM_LOAD( "c12",    0x1000, 0x1000, CRC(b3bb39d7) SHA1(89c901be6fae2356ce4d2653e94bf28d6bcf41fe) )
	ROM_LOAD( "c13",    0x2000, 0x1000, CRC(3004010b) SHA1(00d5d2185014159112eb90d8ed50092a3b4ab664) )
	ROM_LOAD( "c14",    0x3000, 0x1000, CRC(fb5f0d31) SHA1(7a27af91efc836bb48c6ed3b283b7c5f7b31c4b5) )

	ROM_REGION( 0x0040, REGION_PROMS, 0 )
	ROM_LOAD( "c.d19",  0x0000, 0x0020, CRC(220bceeb) SHA1(46b9f867d014596e2aa7503f104dc721965f0ed5) )
	ROM_LOAD( "c.d18",  0x0020, 0x0020, CRC(7b9ed1b0) SHA1(ec5e1f56e5a2fc726083866c08ac0e1de0ed6ace) )
ROM_END

GAME( 1983, carjmbre, 0, carjmbre, carjmbre, 0, ROT90, "Omori Electric Co., Ltd.", "Car Jamboree", GAME_IMPERFECT_COLORS )
