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

Hot Pinball
Gals Pinball

driver by Nicola Salmoria

Notes:
- to start a 2 or more players game, press the start button multiple times
- the sprite graphics contain a "(c) Tecmo", and the sprite system is
  indeed similar to other Tecmo games like Ninja Gaiden.


TODO:
- scrolling is wrong.
- sprite/tile priority might be wrong. There is an unknown bit in the fg
  tilemap, marking some tiles that I'm not currently drawing.

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

#include "driver.h"
#include "cpu/m68000/m68000.h"
#include "cpu/z80/z80.h"
#include "sound/okim6295.h"
#include "sound/3812intf.h"


extern UINT16 *galspnbl_bgvideoram;
extern UINT16 *galspnbl_videoram;
extern UINT16 *galspnbl_colorram;
extern UINT16 *galspnbl_scroll;

PALETTE_INIT( galspnbl );
VIDEO_UPDATE( galspnbl );


static WRITE16_HANDLER( soundcommand_w )
{
	if (ACCESSING_BITS_0_7)
	{
		soundlatch_w(space,offset,data & 0xff);
		cpu_set_input_line(space->machine->cpu[1],INPUT_LINE_NMI,PULSE_LINE);
	}
}


static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x3fffff) AM_ROM
	AM_RANGE(0x700000, 0x703fff) AM_RAM		/* galspnbl work RAM */
	AM_RANGE(0x708000, 0x70ffff) AM_RAM		/* galspnbl work RAM, bitmaps are decompressed here */
	AM_RANGE(0x800000, 0x803fff) AM_RAM		/* hotpinbl work RAM */
	AM_RANGE(0x808000, 0x80ffff) AM_RAM		/* hotpinbl work RAM, bitmaps are decompressed here */
	AM_RANGE(0x880000, 0x880fff) AM_RAM AM_BASE(&spriteram16) AM_SIZE(&spriteram_size)
	AM_RANGE(0x8ff400, 0x8fffff) AM_WRITE(SMH_NOP)	/* ??? */
	AM_RANGE(0x900000, 0x900fff) AM_RAM AM_BASE(&galspnbl_colorram)
	AM_RANGE(0x901000, 0x903fff) AM_WRITE(SMH_NOP)	/* ??? */
	AM_RANGE(0x904000, 0x904fff) AM_RAM AM_BASE(&galspnbl_videoram)
	AM_RANGE(0x905000, 0x907fff) AM_WRITE(SMH_NOP)	/* ??? */
	AM_RANGE(0x980000, 0x9bffff) AM_RAM AM_BASE(&galspnbl_bgvideoram)
	AM_RANGE(0xa00000, 0xa00fff) AM_WRITE(SMH_NOP)	/* more palette ? */
	AM_RANGE(0xa01000, 0xa017ff) AM_WRITE(paletteram16_xxxxBBBBGGGGRRRR_word_w) AM_BASE(&paletteram16)
	AM_RANGE(0xa01800, 0xa027ff) AM_WRITE(SMH_NOP)	/* more palette ? */
	AM_RANGE(0xa80000, 0xa80001) AM_READ_PORT("IN0")
	AM_RANGE(0xa80010, 0xa80011) AM_READ_PORT("IN1") AM_WRITE(soundcommand_w)
	AM_RANGE(0xa80020, 0xa80021) AM_READ_PORT("SYSTEM") AM_WRITENOP		/* w - could be watchdog, but causes resets when picture is shown */
	AM_RANGE(0xa80030, 0xa80031) AM_READ_PORT("DSW1") AM_WRITENOP		/* w - irq ack? */
	AM_RANGE(0xa80040, 0xa80041) AM_READ_PORT("DSW2")
	AM_RANGE(0xa80050, 0xa80051) AM_WRITE(SMH_RAM) AM_BASE(&galspnbl_scroll)	/* ??? */
ADDRESS_MAP_END

static ADDRESS_MAP_START( audio_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xefff) AM_ROM
	AM_RANGE(0xf000, 0xf7ff) AM_RAM
	AM_RANGE(0xf800, 0xf800) AM_DEVREADWRITE("oki", okim6295_r, okim6295_w)
	AM_RANGE(0xf810, 0xf811) AM_DEVWRITE("ym", ym3812_w)
	AM_RANGE(0xfc00, 0xfc00) AM_READWRITE(SMH_NOP, SMH_NOP)	/* irq ack ?? */
	AM_RANGE(0xfc20, 0xfc20) AM_READ(soundlatch_r)
ADDRESS_MAP_END


static INPUT_PORTS_START( galspnbl )
	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )            /* tested at 0x0016c6 - doesn't seem tilt related */
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )            /* tested at 0x0016d2 - doesn't seem tilt related */
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME( "Left Flippers" )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME( "Launch Ball / Tilt" )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )            /* uncalled (?) code at 0x007ed2 ('hotpinbl') or 0x008106 ('galspnbl') */
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SPECIAL )            /* same as BUTTON3 - leftover from another game ? */
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME( "Right Flippers" )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )            /* uncalled (?) code at 0x007e90 ('hotpinbl') or 0x0080c4 ('galspnbl') */
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("SYSTEM")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 ) PORT_NAME( "Start" )  /* needed to avoid confusion with # of players */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")	/* 0x700018.b */
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Unknown ) )          /* difficulty ? code at 0x0085c6 ('hotpinbl') or 0x008994 ('galspnbl') */
	PORT_DIPSETTING(    0x03, "0" )
	PORT_DIPSETTING(    0x02, "1" )
	PORT_DIPSETTING(    0x01, "2" )
	PORT_DIPSETTING(    0x00, "3" )
	PORT_DIPNAME( 0x0c, 0x0c, "Extra Ball" )
	PORT_DIPSETTING(    0x04, "100K 500K" )
	PORT_DIPSETTING(    0x0c, "200K 800K" )
	PORT_DIPSETTING(    0x08, "200K only" )
	PORT_DIPSETTING(    0x00, DEF_STR( None ) )
	PORT_DIPUNUSED( 0x10, IP_ACTIVE_LOW )
	PORT_DIPNAME( 0x20, 0x20, "Slide Show" )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x40, DEF_STR( On ) )
	PORT_DIPUNUSED( 0x80, IP_ACTIVE_LOW )

	PORT_START("DSW2")	/* 0x700019.b */
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x01, "2 Coins/1 Credit 3/2" )
	PORT_DIPSETTING(    0x07, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x06, "1 Coin/1 Credit 2/3" )
	PORT_DIPSETTING(    0x00, "1 Coin/1 Credit 5/6" )
	PORT_DIPSETTING(    0x05, DEF_STR( 1C_2C ) )
	PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x18, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x20, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x08, "2 Coins/1 Credit 3/2" )
	PORT_DIPSETTING(    0x38, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x30, "1 Coin/1 Credit 2/3" )
	PORT_DIPSETTING(    0x00, "1 Coin/1 Credit 5/6" )
	PORT_DIPSETTING(    0x28, DEF_STR( 1C_2C ) )
	PORT_DIPNAME( 0xc0, 0xc0, "Balls" )
	PORT_DIPSETTING(    0x00, "2" )
	PORT_DIPSETTING(    0xc0, "3" )
	PORT_DIPSETTING(    0x80, "4" )
	PORT_DIPSETTING(    0x40, "5" )
INPUT_PORTS_END

static INPUT_PORTS_START( hotpinbl )
	PORT_INCLUDE( galspnbl )

	PORT_MODIFY("IN1")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME( "Right Flippers" )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SPECIAL )            /* same as BUTTON3 - leftover from another game ? */
INPUT_PORTS_END


static const gfx_layout tilelayout =
{
	16,8,
	RGN_FRAC(1,2),
	4,
	{ 0, 1, 2, 3 },
	{ 0*4, 1*4, RGN_FRAC(1,2)+0*4, RGN_FRAC(1,2)+1*4, 2*4, 3*4, RGN_FRAC(1,2)+2*4, RGN_FRAC(1,2)+3*4,
			16*8+0*4, 16*8+1*4, 16*8+RGN_FRAC(1,2)+0*4, 16*8+RGN_FRAC(1,2)+1*4, 16*8+2*4, 16*8+3*4, 16*8+RGN_FRAC(1,2)+2*4, 16*8+RGN_FRAC(1,2)+3*4 },
	{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
	32*8
};

static const gfx_layout spritelayout =
{
	8,8,
	RGN_FRAC(1,2),
	4,
	{ 0, 1, 2, 3 },
	{ 0, 4, RGN_FRAC(1,2)+0, RGN_FRAC(1,2)+4, 8+0, 8+4, 8+RGN_FRAC(1,2)+0, 8+RGN_FRAC(1,2)+4 },
	{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
	16*8
};

static GFXDECODE_START( galspnbl )
	GFXDECODE_ENTRY( "gfx1", 0, tilelayout,   512, 16 )
	GFXDECODE_ENTRY( "gfx2", 0, spritelayout,   0, 16 )
GFXDECODE_END



static void irqhandler(const device_config *device, int linestate)
{
	cpu_set_input_line(device->machine->cpu[1],0,linestate);
}

static const ym3812_interface ym3812_config =
{
	irqhandler
};



static MACHINE_DRIVER_START( galspnbl )

	/* basic machine hardware */
	MDRV_CPU_ADD("maincpu", M68000, 10000000)	/* 10 MHz ??? */
	MDRV_CPU_PROGRAM_MAP(main_map,0)
	MDRV_CPU_VBLANK_INT("screen", irq3_line_hold)/* also has vector for 6, but it does nothing */

	MDRV_CPU_ADD("audiocpu", Z80, 4000000)	/* 4 MHz ??? */
	MDRV_CPU_PROGRAM_MAP(audio_map,0)
								/* NMI is caused by the main CPU */

	/* video hardware */
	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(512, 256)
	MDRV_SCREEN_VISIBLE_AREA(0, 512-1, 16, 240-1)

	MDRV_GFXDECODE(galspnbl)
	MDRV_PALETTE_LENGTH(1024 + 32768)

	MDRV_PALETTE_INIT(galspnbl)
	MDRV_VIDEO_UPDATE(galspnbl)

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

	MDRV_SOUND_ADD("ym", YM3812, 3579545)
	MDRV_SOUND_CONFIG(ym3812_config)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)

	MDRV_SOUND_ADD("oki", OKIM6295, 1056000)
	MDRV_SOUND_CONFIG(okim6295_interface_pin7high) // clock frequency & pin 7 not verified
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END



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

  Game driver(s)

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

ROM_START( galspnbl )
	ROM_REGION( 0x400000, "maincpu", 0 )	/* 68000 code */
	ROM_LOAD16_BYTE( "7.rom",        0x000000, 0x80000, CRC(ce0189bf) SHA1(06d8cc6f5b819fe2ca536ce553db6986547a15ba) )
	ROM_LOAD16_BYTE( "3.rom",        0x000001, 0x80000, CRC(9b0a8744) SHA1(ac80f22b8b2f4c559c225bf203af698bf59699e7) )
	ROM_LOAD16_BYTE( "8.rom",        0x100000, 0x80000, CRC(eee2f087) SHA1(37285ae7b49c9d20ad92b3971db89ba593975154) )
	ROM_LOAD16_BYTE( "4.rom",        0x100001, 0x80000, CRC(56298489) SHA1(6dce296d752fa5579e8a3c1db3e563c4f98b6bae) )
	ROM_LOAD16_BYTE( "9.rom",        0x200000, 0x80000, CRC(d9e4964c) SHA1(0bb63384ed57a6ee1d45d1f2c181172a3f0b39df) )
	ROM_LOAD16_BYTE( "5.rom",        0x200001, 0x80000, CRC(a5e71ee4) SHA1(f41ea4ab07be263157d6c1f4a96ef45c9bccfe39) )
	ROM_LOAD16_BYTE( "10.rom",       0x300000, 0x80000, CRC(3a20e1e5) SHA1(850be621547bc9c7519055211392f2684e440462) )
	ROM_LOAD16_BYTE( "6.rom",        0x300001, 0x80000, CRC(94927d20) SHA1(0ea1a179956ad9a93a99cccec92f0490044ad1d3) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	/* Z80 code */
	ROM_LOAD( "2.rom",        0x0000, 0x10000, CRC(fae688a7) SHA1(e1ef7abd18f6a820d1a7f0ceb9a9b1a2c7de41f0) )

	ROM_REGION( 0x80000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "17.rom",       0x00000, 0x40000, CRC(7d435701) SHA1(f6a2241c95f101d09b18f550689d125abd3ea9c4) )
	ROM_LOAD( "18.rom",       0x40000, 0x40000, CRC(136adaac) SHA1(5f5e70a66d256cad9fcdbc5a7fff035f9a3279b9) )

	ROM_REGION( 0x40000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "15.rom",       0x00000, 0x20000, CRC(4beb840d) SHA1(351cd8da361a55794595d2cf7b0fed9233d0a5a0) )
	ROM_LOAD( "16.rom",       0x20000, 0x20000, CRC(93d3c610) SHA1(0cf1f311ec2646a436c37e121634731646c06437) )

	ROM_REGION( 0x40000, "oki", 0 )	/* OKIM6295 samples */
	ROM_LOAD( "1.rom",        0x00000, 0x40000, CRC(93c06d3d) SHA1(8620d274ca7824e7e72a1ad1da3eaa804d550653) )
ROM_END

ROM_START( hotpinbl )
	ROM_REGION( 0x400000, "maincpu", 0 )	/* 68000 code */
	ROM_LOAD16_BYTE( "hp_07.bin",    0x000000, 0x80000, CRC(978cc13e) SHA1(0060aaf7259fdeeacb07e9ced01bdf69c27bdfb6) )
	ROM_LOAD16_BYTE( "hp_03.bin",    0x000001, 0x80000, CRC(68388726) SHA1(d8dca9050403be70097a0f833ba189bd2fa87e80) )
	ROM_LOAD16_BYTE( "hp_08.bin",    0x100000, 0x80000, CRC(bd16be12) SHA1(36e64705efba8ecdc96a62f55d68e959022fb98f) )
	ROM_LOAD16_BYTE( "hp_04.bin",    0x100001, 0x80000, CRC(655b0cf0) SHA1(4348d774155c61b1a29c2618f472a0032f4be9c0) )
	ROM_LOAD16_BYTE( "hp_09.bin",    0x200000, 0x80000, CRC(a6368624) SHA1(fa0b3dc4eb33a4b2d00e30676e59feec2fa64c3d) )
	ROM_LOAD16_BYTE( "hp_05.bin",    0x200001, 0x80000, CRC(48efd028) SHA1(8c968c4a73069a8f64e7bc339bab0eeb5254c580) )
	ROM_LOAD16_BYTE( "hp_10.bin",    0x300000, 0x80000, CRC(a5c63e34) SHA1(de27cfe20e09e8c13ee28d6eb42bfab1ebe33149) )
	ROM_LOAD16_BYTE( "hp_06.bin",    0x300001, 0x80000, CRC(513eda91) SHA1(14a43c00ad1f55bff525a14cd53913dd78e80f0c) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	/* Z80 code */
	ROM_LOAD( "hp_02.bin",    0x0000, 0x10000, CRC(82698269) SHA1(5e27e89f1bdd7c3793d40867c50981f5fac0a7fb) )

	ROM_REGION( 0x80000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "hp_13.bin",    0x00000, 0x40000, CRC(d53b64b9) SHA1(347b6ec908e23f848e98eed46fb34b49b728556b) )
	ROM_LOAD( "hp_14.bin",    0x40000, 0x40000, CRC(2fe3fcee) SHA1(29f96aa3dded6cb0b2fe3d9507fb5638e9778ef3) )

	ROM_REGION( 0x40000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "hp_11.bin",    0x00000, 0x20000, CRC(deecd7f1) SHA1(752c944d941bfe8f21d32881f32676999ebc5a7f) )
	ROM_LOAD( "hp_12.bin",    0x20000, 0x20000, CRC(5fd603c2) SHA1(864686cd1ba5beb6cebfd394b60620106c929abd) )

	ROM_REGION( 0x40000, "oki", 0 )	/* OKIM6295 samples */
	ROM_LOAD( "hp_01.bin",    0x00000, 0x40000, CRC(93c06d3d) SHA1(8620d274ca7824e7e72a1ad1da3eaa804d550653) )
ROM_END


GAME( 1995, hotpinbl, 0, galspnbl, hotpinbl, 0, ROT90, "Comad & New Japan System", "Hot Pinball", 0 )
GAME( 1996, galspnbl, 0, galspnbl, galspnbl, 0, ROT90, "Comad", "Gals Pinball", 0 )
