text: /*
  Jumping Cross - (c) 1984 SNK
  driver by Tomasz Slanina
  
  Based on marvin's maze driver
  
  Todo:
  - problems with sprites - strange movement in attract mode,
  - $c800-$d7ff - unknown read (related with ^^^ )
  - verify dipswitches
  - verify colors (is palette banking correct ?)
  - unused tileset (almost identical to txt layer tiles ,  few (3?) chars are different)
  - cocktail mdoe/screen flipping
  
  Could be bad dump ('final' romset is made of two sets marked as 'bad' )
  
  */
  
  #include "driver.h"
  #include "vidhrdw/generic.h"
  #include "cpu/z80/z80.h"
  #include "snk.h"
  
  data8_t *jcr_textram;
  
  WRITE_HANDLER( snkwave_w );
  
  READ_HANDLER( jcross_background_ram_r );
  WRITE_HANDLER( jcross_background_ram_w );
  
  READ_HANDLER( jcross_text_ram_r );
  WRITE_HANDLER( jcross_text_ram_w );
  
  extern VIDEO_START( jcross );
  extern VIDEO_UPDATE( jcross );
  extern int jcross_vregs[5];
  WRITE_HANDLER( jcross_palettebank_w );
  
  static int sound_cpu_busy=0;
  
  data8_t *jcr_sharedram;
  static READ_HANDLER(sharedram_r){	return jcr_sharedram[offset];}
  static WRITE_HANDLER(sharedram_w){	jcr_sharedram[offset]=data;}
  
  static struct namco_interface snkwave_interface =
  {
  	24000,
  	1,
  	8,
  	-1
  };
  
  static struct AY8910interface ay8910_interface =
  {
  	2,
  	2000000,
  	{ 35,35 },
  	{ 0 },
  	{ 0 },
  	{ 0 },
  	{ 0 }
  };
  
  static WRITE_HANDLER( sound_command_w )
  {
  	sound_cpu_busy = 0x20;
  	soundlatch_w(0, data);
  	cpu_set_irq_line(2, IRQ_LINE_NMI, PULSE_LINE);
  }
  
  static READ_HANDLER( sound_command_r )
  {
  	sound_cpu_busy = 0;
  	return(soundlatch_r(0));
  }
  
  static READ_HANDLER( sound_nmi_ack_r )
  {
  	cpu_set_nmi_line(2, CLEAR_LINE);
  	return 0;
  }
  
  static READ_HANDLER( jcross_port_0_r )
  {
  	return(input_port_0_r(0) | sound_cpu_busy);
  }
  
  static WRITE_HANDLER(jcross_vregs0_w){jcross_vregs[0]=data;}
  static WRITE_HANDLER(jcross_vregs1_w){jcross_vregs[1]=data;}
  static WRITE_HANDLER(jcross_vregs2_w){jcross_vregs[2]=data;}
  static WRITE_HANDLER(jcross_vregs3_w){jcross_vregs[3]=data;}
  static WRITE_HANDLER(jcross_vregs4_w){jcross_vregs[4]=data;}
  
  
  static MEMORY_READ_START( readmem_sound )
  	{ 0x0000, 0x3fff, MRA_ROM },
  	{ 0x8000,0x87ff,MRA_RAM },
  	{ 0xa000, 0xa000, sound_command_r },
  	{ 0xc000, 0xc000, sound_nmi_ack_r },
  	MEMORY_END
  
  static MEMORY_WRITE_START( writemem_sound )
  	{ 0x0000, 0x3fff, MWA_ROM, &namco_wavedata },
  	{ 0x8000, 0x87ff,MWA_RAM },
  	{ 0xe000, 0xe000, AY8910_control_port_0_w },
  	{ 0xe001, 0xe001, AY8910_write_port_0_w },
  	{ 0xe002, 0xe007, snkwave_w },
  	{ 0xe008, 0xe008, AY8910_control_port_1_w },
  	{ 0xe009, 0xe009, AY8910_write_port_1_w },
  
  MEMORY_END
  
  static MEMORY_READ_START( readmem_CPUA )
  	{ 0x0000, 0x9fff, MRA_ROM },
  	{ 0xa000, 0xa000, jcross_port_0_r },
  	{ 0xa100, 0xa100, input_port_1_r },
  	{ 0xa200, 0xa200, input_port_2_r },
  	{ 0xa400, 0xa400, input_port_3_r },
  	{ 0xa500, 0xa500, input_port_4_r },
  	{ 0xa700, 0xa700, snk_cpuB_nmi_trigger_r  },
  	{ 0xd800, 0xdfff, sharedram_r },
  	{ 0xf000, 0xf3ff, jcross_text_ram_r },
    	{ 0xe000, 0xefff, jcross_background_ram_r },
  	{ 0xf400, 0xffff, MRA_RAM },
  MEMORY_END
  
  static MEMORY_WRITE_START( writemem_CPUA )
  	{ 0x0000, 0x9fff, MWA_ROM },
  	{ 0xa300, 0xa300, sound_command_w },
  	{ 0xa600, 0xa600, jcross_palettebank_w },
  	{ 0xa700, 0xa700, snk_cpuA_nmi_ack_w},
  	{ 0xd300, 0xd300, jcross_vregs0_w},
  	{ 0xd400, 0xd400, jcross_vregs1_w},
  	{ 0xd500, 0xd500, jcross_vregs2_w},
  	{ 0xd600, 0xd600, jcross_vregs3_w},
  	{ 0xd700, 0xd700, jcross_vregs4_w},
   	{ 0xd800, 0xdfff, sharedram_w, &jcr_sharedram },
  	{ 0xe000, 0xefff, jcross_background_ram_w, &videoram },
  	{ 0xf000, 0xf3ff, jcross_text_ram_w, &jcr_textram},
  	{ 0xf400, 0xffff, MWA_RAM },
  
  MEMORY_END
  
  static MEMORY_READ_START( readmem_CPUB )
  	{ 0x0000, 0x7fff, MRA_ROM },
  	{ 0xa700, 0xa700, snk_cpuA_nmi_trigger_r },
    	{ 0xc000, 0xc7ff, sharedram_r },
  	{ 0xc800, 0xd7ff, jcross_background_ram_r }, /* unknown ??? */
  MEMORY_END
  
  static MEMORY_WRITE_START( writemem_CPUB )
  	{ 0x0000, 0x7fff, MWA_ROM },
  	{ 0xa700, 0xa700, snk_cpuB_nmi_ack_w  },
    	{ 0xc000, 0xc7ff, sharedram_w },
  MEMORY_END
  
  static PORT_READ_START( readport_sound )
  	{ 0x0000, 0x0000, MRA_NOP },
  PORT_END
  
  
  INPUT_PORTS_START( jcross )
  	PORT_START
  	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
  	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
  	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN3 )
  	PORT_BIT( 0x08, IP_ACTIVE_LOW,  IPT_START1 )
  	PORT_BIT( 0x10, IP_ACTIVE_LOW,  IPT_START2 )
  	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN ) /* sound CPU status */
  
  
  	PORT_START
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_8WAY )
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_8WAY )
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_8WAY )
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 )
  
  
  	PORT_START
  	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_8WAY | IPF_COCKTAIL )
  	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_8WAY | IPF_COCKTAIL )
  	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_8WAY | IPF_COCKTAIL )
  	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
  	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_COCKTAIL )
  	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )
  	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
  
  	PORT_START	/* DSW1 */
  	PORT_DIPNAME( 0x01, 0x01, "Unknown SW 1-0" )
  	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Cabinet ) )
  	PORT_DIPSETTING(    0x02, DEF_STR( Upright ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )
  
  	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Lives ) )
  	PORT_DIPSETTING(    0x04, "3" )
  	PORT_DIPSETTING(    0x00, "5" )
  	PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coinage ) )
  	/* PORT_DIPSETTING(    0x10,  )  ???? 'insert more coin'*/
  	PORT_DIPSETTING(    0x28, DEF_STR( 3C_1C ) )
  	PORT_DIPSETTING(    0x30, DEF_STR( 2C_1C ) )
  	PORT_DIPSETTING(    0x38, DEF_STR( 1C_1C ) )
  	PORT_DIPSETTING(    0x18, DEF_STR( 1C_2C ) )
  	PORT_DIPSETTING(    0x20, DEF_STR( 1C_3C ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
  
  	PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Bonus_Life ) )/* not verified */
  	PORT_DIPSETTING(    0xc0, "20000 60000" )
  	PORT_DIPSETTING(    0x80, "40000 90000" )
  	PORT_DIPSETTING(    0x40, "50000 120000" )
  	PORT_DIPSETTING(    0x00, "None" )
  
  	PORT_START	/* DSW2 */
  	PORT_DIPNAME( 0x01, 0x00, "Bonus Life Occurence" )/* not verified */
  	PORT_DIPSETTING(    0x01, "1st, 2nd, then every 2nd" )
  	PORT_DIPSETTING(    0x00, "1st and 2nd only" )
  	PORT_DIPNAME( 0x06, 0x04, DEF_STR( Difficulty ) ) /* scrolling speed */
  	PORT_DIPSETTING(    0x06, "Easy" )
  	PORT_DIPSETTING(    0x04, "Normal" )
  	PORT_DIPSETTING(    0x02, "Hard" )
  	PORT_DIPSETTING(    0x00, "Hardest" )
  	PORT_DIPNAME( 0x18, 0x10, "Game mode" )
  	PORT_DIPSETTING(    0x18, "Demo Sounds Off" )
  	PORT_DIPSETTING(    0x10, "Demo Sounds On" )
  	PORT_BITX(0,        0x08, IPT_DIPSWITCH_SETTING | IPF_CHEAT, "Infinite Lives", IP_JOY_NONE, IP_KEY_NONE )
  	PORT_DIPSETTING(    0x00, "Freeze" )
  	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Flip_Screen ) )
  	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x40, 0x40, "Unknown SW 2-6" )
  	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
  	PORT_DIPNAME( 0x80, 0x80, "BG Collisions" )
  	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
  	PORT_DIPSETTING(    0x80, DEF_STR( On ) )
  
  INPUT_PORTS_END
  
  
  
  /***************************************************************************
  **
  **	Graphics Layout
  **
  ***************************************************************************/
  
  static struct GfxLayout sprite_layout =
  {
  	16,16,
  	RGN_FRAC(1,3),
  	3,
  	{ 0,0x2000*8,0x4000*8 },
  	{
  		7,6,5,4,3,2,1,0,15,14,13,12,11,10,9,8
  	},
  	{
  		0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16,
  		8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16
  	},
  	256
  };
  
  static struct GfxLayout tile_layout =
  {
  	8,8,
  	RGN_FRAC(1,1),
  	4,
  	{ 0, 1, 2, 3 },
  	{ 4, 0, 12, 8, 20, 16, 28, 24},
  	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
  	256
  };
  
  static struct GfxDecodeInfo jcross_gfxdecodeinfo[] =
  {
  	{ REGION_GFX1, 0, &tile_layout,	0x080, 8  },
  	{ REGION_GFX2, 0, &tile_layout,	0x110, 1  },
  	{ REGION_GFX3, 0, &tile_layout,	0x100, 1  },
  	{ REGION_GFX4, 0, &sprite_layout,	0x000, 16 }, /* sprites */
  	{ -1 }
  };
  
  
  /***************************************************************************
  **
  **	Machine Driver
  **
  ***************************************************************************/
  
  static MACHINE_DRIVER_START( jcross )
  
  	MDRV_CPU_ADD(Z80, 3360000)
  	MDRV_CPU_MEMORY(readmem_CPUA,writemem_CPUA)
  	MDRV_CPU_VBLANK_INT(irq0_line_hold,1)
  
  	MDRV_CPU_ADD(Z80, 3360000)
  	MDRV_CPU_MEMORY(readmem_CPUB,writemem_CPUB)
  	MDRV_CPU_VBLANK_INT(irq0_line_hold,1)
  
  	MDRV_CPU_ADD(Z80, 4000000)
  	MDRV_CPU_FLAGS(CPU_AUDIO_CPU)
  	MDRV_CPU_MEMORY(readmem_sound,writemem_sound)
  	MDRV_CPU_PORTS(readport_sound,0)
  	MDRV_CPU_PERIODIC_INT(irq0_line_hold, 244)
  
  	MDRV_FRAMES_PER_SECOND(61)
  	MDRV_VBLANK_DURATION(DEFAULT_REAL_60HZ_VBLANK_DURATION)
  	MDRV_INTERLEAVE(100)
  
  	/* video hardware */
  	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
  	MDRV_SCREEN_SIZE(512, 512)
  	MDRV_VISIBLE_AREA(0, 255,0, 223)
  	MDRV_GFXDECODE(jcross_gfxdecodeinfo)
  	MDRV_PALETTE_LENGTH((16+2)*16)
  	MDRV_VIDEO_START(jcross)
  	MDRV_VIDEO_UPDATE(jcross)
  
  	/* sound hardware */
  	MDRV_SOUND_ADD(AY8910, ay8910_interface)
  	MDRV_SOUND_ADD(NAMCO_15XX, snkwave_interface)
  MACHINE_DRIVER_END
  
  
  ROM_START( jcross )
  	ROM_REGION( 0x10000, REGION_CPU1, 0 )
  	ROM_LOAD( "jcrossa0.10b",  0x0000, 0x2000, CRC(0e79bbcd) SHA1(7088a8effd30080529b797991e24e9807bf90475) )
  	ROM_LOAD( "jcrossa1.12b",  0x2000, 0x2000, CRC(999b2bcc) SHA1(e5d13c9c11a82cedee15777341e6424639ecf2f5) )
  	ROM_LOAD( "jcrossa2.13b",  0x4000, 0x2000, CRC(ac89e49c) SHA1(9b9a0eec8ad341ce7af58bffe55f10bec696af62) )
  	ROM_LOAD( "jcrossa3.14b",  0x6000, 0x2000, CRC(4fd7848d) SHA1(870aea0b8e027616814df87afd24418fd140f736) )
  	ROM_LOAD( "jcrossa4.15b",  0x8000, 0x2000, CRC(8500575d) SHA1(b8751b86508de484f2eb8a6702c63a47ec882036) )
  
  	ROM_REGION( 0x10000, REGION_CPU2, 0 )
  	ROM_LOAD( "jcrossb0.15a",  0x0000, 0x2000, CRC(77ed51e7) SHA1(56b457846f71f442da6f99889231d4b71d5fcb6c) )
  	ROM_LOAD( "jcrossb1.14a",  0x2000, 0x2000, CRC(23cf0f70) SHA1(f258e899f332a026eeb0db92330fd60c478218af) )
  	ROM_LOAD( "jcrossb2.13a",  0x4000, 0x2000, CRC(5bed3118) SHA1(f105ca55223a4bfbc8e2d61c365c76cf2153254c) )
  	ROM_LOAD( "jcrossb3.12a",  0x6000, 0x2000, CRC(cd75dc95) SHA1(ef03d2b0f66f30fad5132e7b6aee9ec978650b53) )
  
  	ROM_REGION( 0x10000, REGION_CPU3, 0 )
  	ROM_LOAD( "jcrosss0.f1",   0x0000, 0x2000, CRC(9ae8ea93) SHA1(1d824302305a41bf5c354c36e2e11981d1aa5ea4) )
  	ROM_LOAD( "jcrosss1.h2",   0x2000, 0x2000, CRC(83785601) SHA1(cd3d484ef5464090c4b543b1edbbedcc52b15071) )
  
  	ROM_REGION( 0x2000, REGION_GFX1, ROMREGION_DISPOSE )
  	ROM_LOAD( "jcrosss.d2",    0x0000, 0x2000, CRC(3ebb5beb) SHA1(de0a1f0fdb5b08b76dab9fa64d9ae3047c4ff84b) )
  
  	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
  	ROM_LOAD( "jcrossb1.a2",   0x0000, 0x2000, CRC(ea3dfbc9) SHA1(eee56acd1c9dbc6c3ecdee4ffe860273e65cc09b) )
  
  	ROM_REGION( 0x2000, REGION_GFX3, ROMREGION_DISPOSE )
  	ROM_LOAD( "jcrossb4.10a",  0x0000, 0x2000, CRC(08ad93fe) SHA1(04baf2d9735b0d794b114abeced5a6b899958ce7) )
  
  	ROM_REGION( 0x6000, REGION_GFX4, ROMREGION_DISPOSE )
  	ROM_LOAD( "jcrossf2.j2",    0x0000, 0x2000, CRC(42a12b9d) SHA1(9f2bdb1f84f444442282cf0fc1f7b3c7f9a9bf48) )
  	ROM_LOAD( "jcrossf1.k2",    0x2000, 0x2000, CRC(70d219bf) SHA1(9ff9f88221edd141e8204ac810434b4290db7cff) )
  	ROM_LOAD( "jcrossf0.l2",  0x4000, 0x2000, CRC(4532509b) SHA1(c99f87e2b06b94d815e6099bccb2aee0edf8c98d) )
  
  	ROM_REGION( 0x0c00, REGION_PROMS, 0 )
  	ROM_LOAD( "jcrossp2.j7",  0x000, 0x400, CRC(b72a96a5) SHA1(20d40e4b6a2652e61dc3ad0c4afaec04e3c7cf74) )
  	ROM_LOAD( "jcrossp1.j8",  0x400, 0x400, CRC(35650448) SHA1(17e4a661ff304c093bb0253efceaf4e9b2498924) )
  	ROM_LOAD( "jcrossp0.j9",  0x800, 0x400, CRC(99f54d48) SHA1(9bd20eaa9706d28eaca9f5e195204d89e302272f) )
  ROM_END
  
  GAMEX(1984, jcross, 0, jcross, jcross, 0, ROT270,   "SNK", "Jumping Cross",GAME_NO_COCKTAIL|GAME_IMPERFECT_GRAPHICS)
  
  
  