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

    Dead Angle                          (c) 1988 Seibu Kaihatsu
    Gang Hunter                         (c) 1988 Seibu Kaihatsu

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

/*

    TODO:

    - ghunter trackball input is broken
    - coin lockouts


Lead Angle
Seibu, 1988

Clocks
------
Top board
Two crystals on top board 12MHz and 16MHz
V30(x2) - both 8MHz [16/2]

Bottom board
One crystal on bottom board 14.31818MHz
Z80 - 3.579545MHz [14.31818/4]
OKI M5205(x2) - 375kHz [12/32]
YM2203(x2) 3.579545MHz [14.31818/4]
Seibu  SEI0100 YM3931 - 3.579545MHz [14.31818/4]
VSync 60Hz
HSync 15.37kHz

2008-08
Dip locations and factory settings verified with US manual

*/

#include "emu.h"
#include "cpu/nec/nec.h"
#include "audio/seibu.h"
#include "sound/2203intf.h"
#include "sound/msm5205.h"
#include "includes/deadang.h"

/* Read/Write Handlers */

static READ16_HANDLER( ghunter_trackball_low_r )
{
	return (input_port_read(space->machine(), "TRACKX") & 0xff) | ((input_port_read(space->machine(), "TRACKY") & 0xff) << 8);
}
static READ16_HANDLER( ghunter_trackball_high_r )
{
	return ((input_port_read(space->machine(), "TRACKX") & 0x0f00) >> 4) | (input_port_read(space->machine(), "TRACKY") & 0x0f00);
}

/* Memory Maps */

static ADDRESS_MAP_START( main_map, AS_PROGRAM, 16 )
	AM_RANGE(0x00000, 0x037ff) AM_RAM
	AM_RANGE(0x03800, 0x03fff) AM_RAM AM_BASE_MEMBER(deadang_state, m_spriteram)
	AM_RANGE(0x04000, 0x04fff) AM_RAM AM_SHARE("share1")
	AM_RANGE(0x05000, 0x05fff) AM_WRITEONLY
	AM_RANGE(0x06000, 0x0600f) AM_READWRITE(seibu_main_word_r, seibu_main_word_w)
	AM_RANGE(0x06010, 0x07fff) AM_WRITEONLY
	AM_RANGE(0x08000, 0x087ff) AM_WRITE(deadang_text_w) AM_BASE_MEMBER(deadang_state, m_videoram)
	AM_RANGE(0x08800, 0x0bfff) AM_WRITEONLY
	AM_RANGE(0x0a000, 0x0a001) AM_READ_PORT("P1_P2")
	AM_RANGE(0x0a002, 0x0a003) AM_READ_PORT("DSW")
	AM_RANGE(0x0c000, 0x0cfff) AM_WRITE(paletteram16_xxxxBBBBGGGGRRRR_word_w) AM_BASE_GENERIC(paletteram)
	AM_RANGE(0x0d000, 0x0dfff) AM_WRITEONLY
	AM_RANGE(0x0e000, 0x0e0ff) AM_WRITEONLY AM_BASE_MEMBER(deadang_state, m_scroll_ram)
	AM_RANGE(0x0e100, 0x0ffff) AM_WRITEONLY
	AM_RANGE(0xc0000, 0xfffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( sub_map, AS_PROGRAM, 16 )
	AM_RANGE(0x00000, 0x037ff) AM_RAM
	AM_RANGE(0x03800, 0x03fff) AM_RAM_WRITE(deadang_foreground_w) AM_BASE_MEMBER(deadang_state, m_video_data)
	AM_RANGE(0x04000, 0x04fff) AM_RAM AM_SHARE("share1")
	AM_RANGE(0x08000, 0x08001) AM_WRITE(deadang_bank_w)
	AM_RANGE(0x0c000, 0x0c001) AM_WRITE(watchdog_reset16_w)
	AM_RANGE(0xe0000, 0xfffff) AM_ROM
ADDRESS_MAP_END

/* Input Ports */

static INPUT_PORTS_START( deadang )
	SEIBU_COIN_INPUTS	/* coin inputs read through sound cpu */

	PORT_START("P1_P2")
	PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
	PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
	PORT_BIT( 0x00c0, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_START1 )

	PORT_START("DSW")
	/* Dip switch A */
	PORT_DIPNAME( 0x0007, 0x0007, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:1,2,3")
	PORT_DIPSETTING(    0x0000, DEF_STR( 5C_1C ) )
	PORT_DIPSETTING(    0x0004, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x0002, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x0006, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x0007, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0003, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x0005, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0001, DEF_STR( 1C_5C ) )
	PORT_DIPNAME( 0x0018, 0x0018, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:4,5")
	PORT_DIPSETTING(    0x0010, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x0018, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0000, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x0008, DEF_STR( 1C_2C ) )
	PORT_SERVICE_DIPLOC( 0x0020, IP_ACTIVE_LOW, "SW1:6" )
	PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:7")
	PORT_DIPSETTING(    0x0040, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x0000, DEF_STR( On ) )
	PORT_DIPNAME( 0x0080, 0x0080, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:8")
	PORT_DIPSETTING(    0x0080, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x0000, DEF_STR( Cocktail ) )
	/* Dip switch B */
	PORT_DIPNAME( 0x0300, 0x0300, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(    0x0200, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x0300, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x0100, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x0000, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x0c00, 0x0c00, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:3,4")
	PORT_DIPSETTING(    0x0800, "20K 50K" )
	PORT_DIPSETTING(    0x0c00, "30K 100K" )
	PORT_DIPSETTING(    0x0400, "50K 150K" )
	PORT_DIPSETTING(    0x0000, "100K 200K" )
	PORT_DIPNAME( 0x3000, 0x3000, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:5,6")
	PORT_DIPSETTING(    0x2000, "1" )
	PORT_DIPSETTING(    0x1000, "2" )
	PORT_DIPSETTING(    0x3000, "3" )
	PORT_DIPSETTING(    0x0000, "4" )
	PORT_DIPNAME( 0x4000, 0x4000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:7")
	PORT_DIPSETTING(    0x0000, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x4000, DEF_STR( On ) )
	PORT_DIPNAME( 0x8000, 0x8000, "User Mode" ) PORT_DIPLOCATION("SW2:8")
	PORT_DIPSETTING(    0x0000, DEF_STR( Japan ) )
	PORT_DIPSETTING(    0x8000, "Overseas" )
INPUT_PORTS_END

static INPUT_PORTS_START( ghunter )
	PORT_INCLUDE( deadang )

	PORT_MODIFY("DSW")
	PORT_DIPNAME( 0x0400, 0x0400, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:3")
	PORT_DIPSETTING(    0x0400, "50K 150K" )
	PORT_DIPSETTING(    0x0000, "100K 200K" )
	PORT_DIPNAME( 0x0800, 0x0800, DEF_STR( Controller ) ) PORT_DIPLOCATION("SW2:4")
	PORT_DIPSETTING(    0x0800, DEF_STR( Trackball ) )
	PORT_DIPSETTING(    0x0000, DEF_STR( Joystick ) )

	PORT_START("TRACKX")
	PORT_BIT( 0x0fff, 0x0000, IPT_TRACKBALL_X ) PORT_SENSITIVITY(100) PORT_KEYDELTA(30) PORT_PLAYER(1)

	PORT_START("TRACKY")
	PORT_BIT( 0x0fff, 0x0000, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(100) PORT_KEYDELTA(30) PORT_PLAYER(1)
INPUT_PORTS_END

/* Graphics Layouts */

static const gfx_layout charlayout =
{
	8,8,		/* 8*8 characters */
	RGN_FRAC(1,2),
	4,			/* 4 bits per pixel */
	{ RGN_FRAC(1,2)+0, RGN_FRAC(1,2)+4, 0, 4 },
	{ STEP4(3,-1), STEP4(11,-1) },
	{ STEP8(0,16) },
	128
};

static const gfx_layout spritelayout =
{
	16,16,	/* 16*16 tiles */
	RGN_FRAC(1,1),
	4,		/* 4 bits per pixel */
	{ 8,12,0,4},
	{ STEP4(3,-1), STEP4(19,-1), STEP4(512+3,-1), STEP4(512+19,-1) },
	{ STEP16(0,32) },
	1024
};

/* Graphics Decode Information */

static GFXDECODE_START( deadang )
	GFXDECODE_ENTRY( "gfx1", 0x000000, charlayout,    512, 16 )
	GFXDECODE_ENTRY( "gfx2", 0x000000, spritelayout,  768, 16 )
	GFXDECODE_ENTRY( "gfx3", 0x000000, spritelayout, 1024, 16 )
	GFXDECODE_ENTRY( "gfx4", 0x000000, spritelayout,  256, 16 )
	GFXDECODE_ENTRY( "gfx5", 0x000000, spritelayout,    0, 16 )
GFXDECODE_END

/* Interrupt Generators */

static TIMER_DEVICE_CALLBACK( deadang_main_scanline )
{
	int scanline = param;

	if(scanline == 240) // vblank-out irq
		cputag_set_input_line_and_vector(timer.machine(), "maincpu", 0, HOLD_LINE,0xc4/4);

	if(scanline == 0) // vblank-in irq
		cputag_set_input_line_and_vector(timer.machine(), "maincpu", 0, HOLD_LINE,0xc8/4);
}

static TIMER_DEVICE_CALLBACK( deadang_sub_scanline )
{
	int scanline = param;

	if(scanline == 240) // vblank-out irq
		cputag_set_input_line_and_vector(timer.machine(), "sub", 0, HOLD_LINE,0xc4/4);

	if(scanline == 0) // vblank-in irq
		cputag_set_input_line_and_vector(timer.machine(), "sub", 0, HOLD_LINE,0xc8/4);
}

/* Machine Drivers */

static MACHINE_CONFIG_START( deadang, deadang_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", V30,XTAL_16MHz/2) /* Sony 8623h9 CXQ70116D-8 (V30 compatible) */
	MCFG_CPU_PROGRAM_MAP(main_map)
	MCFG_TIMER_ADD_SCANLINE("scantimer1", deadang_main_scanline, "screen", 0, 1)

	MCFG_CPU_ADD("sub", V30,XTAL_16MHz/2) /* Sony 8623h9 CXQ70116D-8 (V30 compatible) */
	MCFG_CPU_PROGRAM_MAP(sub_map)
	MCFG_TIMER_ADD_SCANLINE("scantimer2", deadang_sub_scanline, "screen", 0, 1)

	SEIBU3A_SOUND_SYSTEM_CPU(XTAL_14_31818MHz/4)

	MCFG_QUANTUM_TIME(attotime::from_hz(60)) // the game stops working with higher interleave rates..

	MCFG_MACHINE_RESET(seibu_sound)

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
	MCFG_SCREEN_UPDATE_STATIC(deadang)

	MCFG_GFXDECODE(deadang)
	MCFG_PALETTE_LENGTH(2048)

	MCFG_VIDEO_START(deadang)

	/* sound hardware */
	SEIBU_SOUND_SYSTEM_YM2203_INTERFACE(XTAL_14_31818MHz/4)
	SEIBU_SOUND_SYSTEM_ADPCM_INTERFACE
MACHINE_CONFIG_END

/* ROMs */

ROM_START( deadang )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* v20 main cpu */
	ROM_LOAD16_BYTE("2.18h",   0x0c0000, 0x10000, CRC(1bc05b7e) SHA1(21833150a1f5ab543999a67f5b3bfbaf703e5508) )
	ROM_LOAD16_BYTE("4.22h",   0x0c0001, 0x10000, CRC(5751d4e7) SHA1(2e1a30c20199461fd876849f7563fef1d9a80c2d) )
	ROM_LOAD16_BYTE("1.18f",   0x0e0000, 0x10000, CRC(8e7b15cc) SHA1(7e4766953c1adf04be18207a2aa6f5e861ea5f6c) )
	ROM_LOAD16_BYTE("3.21f",   0x0e0001, 0x10000, CRC(e784b1fa) SHA1(3f41d31e0b36b9a2fab5e9998bb4146dfa0a97eb) )

	ROM_REGION( 0x100000, "sub", 0 ) /* v20 sub cpu */
	ROM_LOAD16_BYTE("5.6bh",   0x0e0000, 0x10000, CRC(9c69eb35) SHA1(d5a9714f279b71c419b4bae0f142c4cb1cc8d30e) )
	ROM_LOAD16_BYTE("6.9b",    0x0e0001, 0x10000, CRC(34a44ce5) SHA1(621c69d8778d4c96ac3be06b033a5931a6a23da2) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* sound Z80 */
	ROM_LOAD( "13.b1", 0x000000, 0x02000, CRC(13b956fb) SHA1(f7c21ad5e988ac59073659a427b1fa66ff49b0c1) ) /* Encrypted */
	ROM_LOAD( "14.c1", 0x010000, 0x10000, CRC(98837d57) SHA1(291769a11478291a65c959d119d19960b100d135) ) /* Banked */

	ROM_REGION( 0x08000, "gfx1", 0 ) /* Chars */
	ROM_LOAD( "7.21j", 0x000000, 0x4000, CRC(fe615fcd) SHA1(d67ee5e877b937173f4c188829d5bcbd354ceb29) )
	ROM_LOAD( "8.21l", 0x004000, 0x4000, CRC(905d6b27) SHA1(952f1879e6c27dc87234a4dc572e0453dc2d59fa) )

	ROM_REGION( 0x80000, "gfx2", 0 ) /* Sprites */
	ROM_LOAD( "l12", 0x000000, 0x80000, CRC(c94d5cd2) SHA1(25ded13faaed90886c9fe40f85969dab2f511e31) )

	ROM_REGION( 0x100000, "gfx3", 0 ) /* pf1 layer */
	ROM_LOAD( "16n", 0x000000, 0x80000, CRC(fd70e1a5) SHA1(c3d1233f4dfe08f686ec99a556889f9ed6a21da3) ) // bank 0 (0x1000 tiles)
	ROM_LOAD( "16r", 0x080000, 0x80000, CRC(92f5e382) SHA1(2097b9e9bf3cd37c8613847e7aed677b5aeab7f9) ) // bank 1 (0x1000 tiles)

	ROM_REGION( 0x40000, "gfx4", 0 ) // pf2 layer
	ROM_LOAD( "11m", 0x000000, 0x40000, CRC(a366659a) SHA1(e2fcd82b0b2d4e3adcdf50c710984907d26acd04) ) // fixed (0x800 tiles)

	ROM_REGION( 0x40000, "gfx5", 0 ) // pf3 layer
	ROM_LOAD( "11k", 0x000000, 0x40000, CRC(9cf5bcc7) SHA1(cf96592e601fc373b1bf322d9b576668799130a5) ) // fixed (0x800 tiles)

	ROM_REGION16_BE( 0x10000, "gfx6", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "10.6l",  0x00000, 0x8000, CRC(ca99176b) SHA1(283e3769a1ff579c78a008b65cb8267e5770ba1f) )
	ROM_LOAD16_BYTE( "9.6m",   0x00001, 0x8000, CRC(51d868ca) SHA1(3e9a4e6bc4bc68773c4ba18c5f4110e6c595d0c9) )

	ROM_REGION16_BE( 0x10000, "gfx7", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "12.6j",  0x00000, 0x8000, CRC(2674d23f) SHA1(0533d80a23d917e20a703aeb833dcaccfa3a1967) )
	ROM_LOAD16_BYTE( "11.6k",  0x00001, 0x8000, CRC(3dd4d81d) SHA1(94f0a13a8d3812f6879819ca186abf3a8665f7cb) )

	ROM_REGION( 0x10000, "adpcm1", 0 )
	ROM_LOAD( "15.b11", 0x000000, 0x10000, CRC(fabd74f2) SHA1(ac70e952a8b38287613b384cdc7ca00a7f155a13) )

    ROM_REGION( 0x10000, "adpcm2", 0 )
	ROM_LOAD( "16.11a", 0x000000, 0x10000, CRC(a8d46fc9) SHA1(3ba51bdec4057413396a152b35015f9d95253e3f) )
ROM_END

ROM_START( leadang )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* v20 main cpu */
	ROM_LOAD16_BYTE("2(__leadang).18h",   0x0c0000, 0x10000, CRC(611247e0) SHA1(1b9ad50f67ba3a3a9e5a0d6e33f4d4be2fc20446) )
	ROM_LOAD16_BYTE("4(__leadang).22h",   0x0c0001, 0x10000, CRC(348c1201) SHA1(277dd77dcbc950299de0fd56a4f66db8f90752ad) )
	ROM_LOAD16_BYTE("1(__leadang).18f",   0x0e0000, 0x10000, CRC(fb952d71) SHA1(c6578cddf019872e6005c3a9e8e3e024d17d8c6e) )
	ROM_LOAD16_BYTE("3.22f",   0x0e0001, 0x10000, CRC(2271c6df) SHA1(774a92bb698606e58d0c74ea07d7eaecf766dddf) )

	ROM_REGION( 0x100000, "sub", 0 ) /* v20 sub cpu */
	ROM_LOAD16_BYTE("5.6b",    0x0e0000, 0x10000, CRC(9c69eb35) SHA1(d5a9714f279b71c419b4bae0f142c4cb1cc8d30e) )
	ROM_LOAD16_BYTE("6.9b",    0x0e0001, 0x10000, CRC(34a44ce5) SHA1(621c69d8778d4c96ac3be06b033a5931a6a23da2) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* sound Z80 */
	ROM_LOAD( "13.b1", 0x000000, 0x02000, CRC(13b956fb) SHA1(f7c21ad5e988ac59073659a427b1fa66ff49b0c1) ) /* Encrypted */
	ROM_LOAD( "14.c1", 0x010000, 0x10000, CRC(98837d57) SHA1(291769a11478291a65c959d119d19960b100d135) ) /* Banked */

	ROM_REGION( 0x08000, "gfx1", 0 ) /* Chars */
	ROM_LOAD( "7.22k", 0x000000, 0x4000, CRC(490701e7) SHA1(2f5cbc0407d7fe41b9e7683c7531656fda7bf9f7) )
	ROM_LOAD( "8.22l", 0x004000, 0x4000, CRC(18024c5e) SHA1(b02bcaa1ba6e7c188f3d2a6b20b52b2dcb8215e0) )

	ROM_REGION( 0x80000, "gfx2", 0 ) /* Sprites */
	ROM_LOAD( "l12", 0x000000, 0x80000, CRC(c94d5cd2) SHA1(25ded13faaed90886c9fe40f85969dab2f511e31) )

	ROM_REGION( 0x100000, "gfx3", 0 ) /* pf1 layer */
	ROM_LOAD( "16n", 0x000000, 0x80000, CRC(fd70e1a5) SHA1(c3d1233f4dfe08f686ec99a556889f9ed6a21da3) ) // bank 0 (0x1000 tiles)
	ROM_LOAD( "16r", 0x080000, 0x80000, CRC(92f5e382) SHA1(2097b9e9bf3cd37c8613847e7aed677b5aeab7f9) ) // bank 1 (0x1000 tiles)

	ROM_REGION( 0x40000, "gfx4", 0 ) // pf2 layer
	ROM_LOAD( "11m", 0x000000, 0x40000, CRC(a366659a) SHA1(e2fcd82b0b2d4e3adcdf50c710984907d26acd04) ) // fixed (0x800 tiles)

	ROM_REGION( 0x40000, "gfx5", 0 ) // pf3 layer
	ROM_LOAD( "11k", 0x000000, 0x40000, CRC(9cf5bcc7) SHA1(cf96592e601fc373b1bf322d9b576668799130a5) ) // fixed (0x800 tiles)

	ROM_REGION16_BE( 0x10000, "gfx6", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "10.6l",  0x00000, 0x8000, CRC(ca99176b) SHA1(283e3769a1ff579c78a008b65cb8267e5770ba1f) )
	ROM_LOAD16_BYTE( "9.6m",   0x00001, 0x8000, CRC(51d868ca) SHA1(3e9a4e6bc4bc68773c4ba18c5f4110e6c595d0c9) )

	ROM_REGION16_BE( 0x10000, "gfx7", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "12.6j",  0x00000, 0x8000, CRC(2674d23f) SHA1(0533d80a23d917e20a703aeb833dcaccfa3a1967) )
	ROM_LOAD16_BYTE( "11.6k",  0x00001, 0x8000, CRC(3dd4d81d) SHA1(94f0a13a8d3812f6879819ca186abf3a8665f7cb) )

	ROM_REGION( 0x10000, "adpcm1", 0 )
	ROM_LOAD( "15.b11", 0x000000, 0x10000, CRC(fabd74f2) SHA1(ac70e952a8b38287613b384cdc7ca00a7f155a13) )

    ROM_REGION( 0x10000, "adpcm2", 0 )
	ROM_LOAD( "16.11a", 0x000000, 0x10000, CRC(a8d46fc9) SHA1(3ba51bdec4057413396a152b35015f9d95253e3f) )
ROM_END

ROM_START( ghunter )
	ROM_REGION( 0x100000, "maincpu", 0 ) /* v20 main cpu */
	ROM_LOAD16_BYTE("ggh-2.h18",   0x0c0000, 0x10000, CRC(7ccc6fee) SHA1(bccc283d82f080157f0521457b04fdd1d63caafe) )
	ROM_LOAD16_BYTE("ggh-4.h22",   0x0c0001, 0x10000, CRC(d1f23ad7) SHA1(2668729af797ccab52ac2bf519d43ab2fa9e54ce) )
	ROM_LOAD16_BYTE("ggh-1.f18",   0x0e0000, 0x10000, CRC(0d6ff111) SHA1(209d26170446b43d1d463737b447e30aaca614a7) )
	ROM_LOAD16_BYTE("ggh-3.f22",   0x0e0001, 0x10000, CRC(66dec38d) SHA1(78dd3143265c3da90d1a0ab2c4f42b4e32716af8) )

	ROM_REGION( 0x100000, "sub", 0 ) /* v20 sub cpu */
	ROM_LOAD16_BYTE("ggh-5.b6",   0x0e0000, 0x10000, CRC(1f612f3b) SHA1(71840fa0e988828a819d371f082ce31d5a5e3a30) )
	ROM_LOAD16_BYTE("ggh-6.b10",  0x0e0001, 0x10000, CRC(63e18e56) SHA1(5183d0909a7c795e76540723fb710a5a75730298) )

	ROM_REGION( 0x20000, "audiocpu", 0 ) /* sound Z80 */
	ROM_LOAD( "13.b1", 0x000000, 0x02000, CRC(13b956fb) SHA1(f7c21ad5e988ac59073659a427b1fa66ff49b0c1) ) /* Encrypted */
	ROM_LOAD( "14.c1", 0x010000, 0x10000, CRC(98837d57) SHA1(291769a11478291a65c959d119d19960b100d135) ) /* Banked */

	ROM_REGION( 0x08000, "gfx1", 0 ) /* Chars */
	ROM_LOAD( "7.21j", 0x000000, 0x4000, CRC(fe615fcd) SHA1(d67ee5e877b937173f4c188829d5bcbd354ceb29) )
	ROM_LOAD( "8.21l", 0x004000, 0x4000, CRC(905d6b27) SHA1(952f1879e6c27dc87234a4dc572e0453dc2d59fa) )

	ROM_REGION( 0x80000, "gfx2", 0 ) /* Sprites */
	ROM_LOAD( "l12", 0x000000, 0x80000, CRC(c94d5cd2) SHA1(25ded13faaed90886c9fe40f85969dab2f511e31) )

	ROM_REGION( 0x100000, "gfx3", 0 ) /* pf1 layer */
	ROM_LOAD( "16n", 0x000000, 0x80000, CRC(fd70e1a5) SHA1(c3d1233f4dfe08f686ec99a556889f9ed6a21da3) ) // bank 0 (0x1000 tiles)
	ROM_LOAD( "16r", 0x080000, 0x80000, CRC(92f5e382) SHA1(2097b9e9bf3cd37c8613847e7aed677b5aeab7f9) ) // bank 1 (0x1000 tiles)

	ROM_REGION( 0x40000, "gfx4", 0 ) // pf2 layer
	ROM_LOAD( "11m", 0x000000, 0x40000, CRC(a366659a) SHA1(e2fcd82b0b2d4e3adcdf50c710984907d26acd04) ) // fixed (0x800 tiles)

	ROM_REGION( 0x40000, "gfx5", 0 ) // pf3 layer
	ROM_LOAD( "11k", 0x000000, 0x40000, CRC(9cf5bcc7) SHA1(cf96592e601fc373b1bf322d9b576668799130a5) ) // fixed (0x800 tiles)

	ROM_REGION16_BE( 0x10000, "gfx6", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "10.6l",  0x00000, 0x8000, CRC(ca99176b) SHA1(283e3769a1ff579c78a008b65cb8267e5770ba1f) )
	ROM_LOAD16_BYTE( "9.6m",   0x00001, 0x8000, CRC(51d868ca) SHA1(3e9a4e6bc4bc68773c4ba18c5f4110e6c595d0c9) )

	ROM_REGION16_BE( 0x10000, "gfx7", 0 )	/* background map data */
	ROM_LOAD16_BYTE( "12.6j",  0x00000, 0x8000, CRC(2674d23f) SHA1(0533d80a23d917e20a703aeb833dcaccfa3a1967) )
	ROM_LOAD16_BYTE( "11.6k",  0x00001, 0x8000, CRC(3dd4d81d) SHA1(94f0a13a8d3812f6879819ca186abf3a8665f7cb) )

	ROM_REGION( 0x10000, "adpcm1", 0 )
	ROM_LOAD( "15.b11", 0x000000, 0x10000, CRC(fabd74f2) SHA1(ac70e952a8b38287613b384cdc7ca00a7f155a13) )

	ROM_REGION( 0x10000, "adpcm2", 0 )
    ROM_LOAD( "16.11a", 0x000000, 0x10000, CRC(a8d46fc9) SHA1(3ba51bdec4057413396a152b35015f9d95253e3f) )
ROM_END

/* Driver Initialization */

static DRIVER_INIT( deadang )
{
	seibu_sound_decrypt(machine, "audiocpu", 0x2000);
	seibu_adpcm_decrypt(machine, "adpcm1");
	seibu_adpcm_decrypt(machine, "adpcm2");
}

static DRIVER_INIT( ghunter )
{
	seibu_sound_decrypt(machine, "audiocpu", 0x2000);
	seibu_adpcm_decrypt(machine, "adpcm1");
	seibu_adpcm_decrypt(machine, "adpcm2");

	machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_read_handler(0x80000, 0x80001, FUNC(ghunter_trackball_low_r));
	machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_read_handler(0xb0000, 0xb0001, FUNC(ghunter_trackball_high_r));
}

/* Game Drivers */

GAME( 1988, deadang, 0,       deadang, deadang, deadang, ROT0, "Seibu Kaihatsu", "Dead Angle", 0 )
GAME( 1988, leadang, deadang, deadang, deadang, deadang, ROT0, "Seibu Kaihatsu", "Lead Angle (Japan)", 0 )
GAME( 1988, ghunter, deadang, deadang, ghunter, ghunter, ROT0, "Seibu Kaihatsu (Segasa/Sonic license)", "Gang Hunter (Spain)", 0 )
