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

Galaga memory map (preliminary)

CPU #1:
0000-3fff ROM
CPU #2:
0000-1fff ROM
CPU #3:
0000-1fff ROM
ALL CPUS:
8000-83ff Video RAM
8400-87ff Color RAM
8b80-8bff sprite code/color
9380-93ff sprite position
9b80-9bff sprite control
8800-9fff RAM

read:
6800-6807 dip switches (only bits 0 and 1 are used - bit 0 is DSW1, bit 1 is DSW2)
	  dsw1:
	    bit 6-7 lives
	    bit 3-5 bonus
	    bit 0-2 coins per play
		  dsw2: (bootleg version, the original version is slightly different)
		    bit 7 cocktail/upright (1 = upright)
	    bit 6 ?
	    bit 5 RACK TEST
	    bit 4 pause (0 = paused, 1 = not paused)
	    bit 3 ?
	    bit 2 ?
	    bit 0-1 difficulty
7000-     custom IO chip return values
7100      custom IO chip status ($10 = command executed)

write:
6805      sound voice 1 waveform (nibble)
6811-6813 sound voice 1 frequency (nibble)
6815      sound voice 1 volume (nibble)
680a      sound voice 2 waveform (nibble)
6816-6818 sound voice 2 frequency (nibble)
681a      sound voice 2 volume (nibble)
680f      sound voice 3 waveform (nibble)
681b-681d sound voice 3 frequency (nibble)
681f      sound voice 3 volume (nibble)
6820      cpu #1 irq acknowledge/enable
6821      cpu #2 irq acknowledge/enable
6822      cpu #3 nmi acknowledge/enable
6823      if 0, halt CPU #2 and #3
6830      Watchdog reset?
7000-     custom IO chip parameters
7100      custom IO chip command (see machine/galaga.c for more details)
a000-a001 starfield scroll speed (only bit 0 is significant)
a002      starfield scroll direction (0 = backwards) (only bit 0 is significant)
a003-a004 starfield blink
a005      starfield enable
a007      flip screen

Interrupts:
CPU #1 IRQ mode 1
       NMI is triggered by the custom IO chip to signal the CPU to read/write
	       parameters
CPU #2 IRQ mode 1
CPU #3 NMI (@120Hz)

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

#include "driver.h"
#include "vidhrdw/generic.h"



extern unsigned char *galaga_sharedram;
READ_HANDLER( galaga_hiscore_print_r );
READ_HANDLER( galaga_sharedram_r );
WRITE_HANDLER( galaga_sharedram_w );
READ_HANDLER( galaga_dsw_r );
WRITE_HANDLER( galaga_interrupt_enable_1_w );
WRITE_HANDLER( galaga_interrupt_enable_2_w );
WRITE_HANDLER( galaga_interrupt_enable_3_w );
READ_HANDLER( galaga_customio_r );
READ_HANDLER( galaga_customio_data_r );
WRITE_HANDLER( galaga_customio_w );
WRITE_HANDLER( galaga_customio_data_w );
WRITE_HANDLER( galaga_halt_w );
INTERRUPT_GEN( galaga_interrupt_1 );
INTERRUPT_GEN( galaga_interrupt_2 );
INTERRUPT_GEN( galaga_interrupt_3 );
MACHINE_INIT( galaga );


extern unsigned char *galaga_starcontrol;
VIDEO_START( galaga );
VIDEO_UPDATE( galaga );
PALETTE_INIT( galaga );

WRITE_HANDLER( pengo_sound_w );
extern unsigned char *pengo_soundregs;


static WRITE_HANDLER( flip_screen_w )
{
	flip_screen_set(data);
}


static MEMORY_READ_START( readmem_cpu1 )
	{ 0x8000, 0x9fff, galaga_sharedram_r },
	{ 0x6800, 0x6807, galaga_dsw_r },
	{ 0x7000, 0x700f, galaga_customio_data_r },
	{ 0x7100, 0x7100, galaga_customio_r },
	{ 0x0000, 0x3fff, MRA_ROM },
MEMORY_END

static MEMORY_READ_START( readmem_cpu2 )
	{ 0x8000, 0x9fff, galaga_sharedram_r },
	{ 0x6800, 0x6807, galaga_dsw_r },
	{ 0x0000, 0x1fff, MRA_ROM },
MEMORY_END

static MEMORY_READ_START( readmem_cpu3 )
	{ 0x8000, 0x9fff, galaga_sharedram_r },
	{ 0x6800, 0x6807, galaga_dsw_r },
	{ 0x0000, 0x1fff, MRA_ROM },
MEMORY_END

static MEMORY_WRITE_START( writemem_cpu1 )
	{ 0x8000, 0x9fff, galaga_sharedram_w, &galaga_sharedram },
	{ 0x6830, 0x6830, MWA_NOP },
	{ 0x7000, 0x700f, galaga_customio_data_w },
	{ 0x7100, 0x7100, galaga_customio_w },
	{ 0xa000, 0xa005, MWA_RAM, &galaga_starcontrol },
	{ 0x6820, 0x6820, galaga_interrupt_enable_1_w },
	{ 0x6822, 0x6822, galaga_interrupt_enable_3_w },
	{ 0x6823, 0x6823, galaga_halt_w },
	{ 0xa007, 0xa007, flip_screen_w },
	{ 0x0000, 0x3fff, MWA_ROM },
	{ 0x8b80, 0x8bff, MWA_RAM, &spriteram, &spriteram_size },       /* these three are here just to initialize */
	{ 0x9380, 0x93ff, MWA_RAM, &spriteram_2 },      /* the pointers. The actual writes are */
	{ 0x9b80, 0x9bff, MWA_RAM, &spriteram_3 },      /* handled by galaga_sharedram_w() */
	{ 0x8000, 0x83ff, MWA_RAM, &videoram, &videoram_size }, /* dirtybuffer[] handling is not needed because */
	{ 0x8400, 0x87ff, MWA_RAM, &colorram }, /* characters are redrawn every frame */
MEMORY_END

static MEMORY_WRITE_START( writemem_cpu2 )
	{ 0x8000, 0x9fff, galaga_sharedram_w },
	{ 0x6821, 0x6821, galaga_interrupt_enable_2_w },
	{ 0x0000, 0x1fff, MWA_ROM },
MEMORY_END

static MEMORY_WRITE_START( writemem_cpu3 )
	{ 0x8000, 0x9fff, galaga_sharedram_w },
	{ 0x6800, 0x681f, pengo_sound_w, &pengo_soundregs },
	{ 0x6822, 0x6822, galaga_interrupt_enable_3_w },
	{ 0x0000, 0x1fff, MWA_ROM },
MEMORY_END



INPUT_PORTS_START( galaga )
	PORT_START      /* DSW0 */
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	/* TODO: bonus scores are different for 5 lives */
	PORT_DIPNAME( 0x38, 0x10, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x20, "20K 60K 60K" )
	PORT_DIPSETTING(    0x18, "20K 60K" )
	PORT_DIPSETTING(    0x10, "20K 70K 70K" )
	PORT_DIPSETTING(    0x30, "20K 80K 80K" )
	PORT_DIPSETTING(    0x38, "30K 80K" )
	PORT_DIPSETTING(    0x08, "30K 100K 100K" )
	PORT_DIPSETTING(    0x28, "30K 120K 120K" )
	PORT_DIPSETTING(    0x00, "None" )
	PORT_DIPNAME( 0xc0, 0x80, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "2" )
	PORT_DIPSETTING(    0x80, "3" )
	PORT_DIPSETTING(    0x40, "4" )
	PORT_DIPSETTING(    0xc0, "5" )

	PORT_START      /* DSW1 */
	PORT_DIPNAME( 0x01, 0x01, "2 Credits Game" )
	PORT_DIPSETTING(    0x00, "1 Player" )
	PORT_DIPSETTING(    0x01, "2 Players" )
	PORT_DIPNAME( 0x06, 0x06, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x06, "Easy" )
	PORT_DIPSETTING(    0x00, "Medium" )
	PORT_DIPSETTING(    0x02, "Hard" )
	PORT_DIPSETTING(    0x04, "Hardest" )
	PORT_DIPNAME( 0x08, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, "Freeze" )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BITX(    0x20, 0x20, IPT_DIPSWITCH_NAME | IPF_CHEAT, "Rack Test", KEYCODE_F1, IP_JOY_NONE )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )

	PORT_START      /* FAKE */
	/* The player inputs are not memory mapped, they are handled by an I/O chip. */
	/* These fake input ports are read by galaga_customio_data_r() */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1, 1 )
	PORT_BITX(0x20, IP_ACTIVE_LOW, IPT_BUTTON1, 0, IP_KEY_PREVIOUS, IP_JOY_PREVIOUS )
	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START      /* FAKE */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY | IPF_COCKTAIL )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY | IPF_COCKTAIL )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL, 1 )
	PORT_BITX(0x20, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL, 0, IP_KEY_PREVIOUS, IP_JOY_PREVIOUS )
	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START      /* FAKE */
	/* the button here is used to trigger the sound in the test screen */
	PORT_BITX(0x03, IP_ACTIVE_LOW, IPT_BUTTON1,     0, IP_KEY_DEFAULT, IP_JOY_DEFAULT )
	PORT_BIT_IMPULSE( 0x04, IP_ACTIVE_LOW, IPT_START1, 1 )
	PORT_BIT_IMPULSE( 0x08, IP_ACTIVE_LOW, IPT_START2, 1 )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_COIN1, 1 )
	PORT_BIT_IMPULSE( 0x20, IP_ACTIVE_LOW, IPT_COIN2, 1 )
	PORT_BIT_IMPULSE( 0x40, IP_ACTIVE_LOW, IPT_COIN3, 1 )
	PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
INPUT_PORTS_END

/* same as galaga, dip switches are slightly different */
INPUT_PORTS_START( galaganm )
	PORT_START      /* DSW0 */
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	/* TODO: bonus scores are different for 5 lives */
	PORT_DIPNAME( 0x38, 0x10, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x20, "20K 60K 60K" )
	PORT_DIPSETTING(    0x18, "20K 60K" )
	PORT_DIPSETTING(    0x10, "20K 70K 70K" )
	PORT_DIPSETTING(    0x30, "20K 80K 80K" )
	PORT_DIPSETTING(    0x38, "30K 80K" )
	PORT_DIPSETTING(    0x08, "30K 100K 100K" )
	PORT_DIPSETTING(    0x28, "30K 120K 120K" )
	PORT_DIPSETTING(    0x00, "None" )
	PORT_DIPNAME( 0xc0, 0x80, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "2" )
	PORT_DIPSETTING(    0x80, "3" )
	PORT_DIPSETTING(    0x40, "4" )
	PORT_DIPSETTING(    0xc0, "5" )

	PORT_START      /* DSW1 */
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x03, "Easy" )
	PORT_DIPSETTING(    0x00, "Medium" )
	PORT_DIPSETTING(    0x01, "Hard" )
	PORT_DIPSETTING(    0x02, "Hardest" )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, "Freeze" )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BITX(    0x20, 0x20, IPT_DIPSWITCH_NAME | IPF_CHEAT, "Rack Test", KEYCODE_F1, IP_JOY_NONE )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )

	PORT_START      /* FAKE */
	/* The player inputs are not memory mapped, they are handled by an I/O chip. */
	/* These fake input ports are read by galaga_customio_data_r() */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1, 1 )
	PORT_BITX(0x20, IP_ACTIVE_LOW, IPT_BUTTON1, 0, IP_KEY_PREVIOUS, IP_JOY_PREVIOUS )
	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START      /* FAKE */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY | IPF_COCKTAIL )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY | IPF_COCKTAIL )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL, 1 )
	PORT_BITX(0x20, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL, 0, IP_KEY_PREVIOUS, IP_JOY_PREVIOUS )
	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START      /* FAKE */
	/* the button here is used to trigger the sound in the test screen */
	PORT_BITX(0x03, IP_ACTIVE_LOW, IPT_BUTTON1,     0, IP_KEY_DEFAULT, IP_JOY_DEFAULT )
	PORT_BIT_IMPULSE( 0x04, IP_ACTIVE_LOW, IPT_START1, 1 )
	PORT_BIT_IMPULSE( 0x08, IP_ACTIVE_LOW, IPT_START2, 1 )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_LOW, IPT_COIN1, 1 )
	PORT_BIT_IMPULSE( 0x20, IP_ACTIVE_LOW, IPT_COIN2, 1 )
	PORT_BIT_IMPULSE( 0x40, IP_ACTIVE_LOW, IPT_COIN3, 1 )
	PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
INPUT_PORTS_END



static struct GfxLayout charlayout =
{
	8,8,           /* 8*8 characters */
	128,           /* 128 characters */
	2,             /* 2 bits per pixel */
	{ 0, 4 },       /* the two bitplanes for 4 pixels are packed into one byte */
	{ 8*8+0, 8*8+1, 8*8+2, 8*8+3, 0, 1, 2, 3 },   /* bits are packed in groups of four */
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },   /* characters are rotated 90 degrees */
	16*8           /* every char takes 16 bytes */
};

static struct GfxLayout spritelayout =
{
	16,16,          /* 16*16 sprites */
	128,            /* 128 sprites */
	2,              /* 2 bits per pixel */
	{ 0, 4 },       /* the two bitplanes for 4 pixels are packed into one byte */
	{ 0, 1, 2, 3, 8*8, 8*8+1, 8*8+2, 8*8+3, 16*8+0, 16*8+1, 16*8+2, 16*8+3,
			24*8+0, 24*8+1, 24*8+2, 24*8+3 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
			32*8, 33*8, 34*8, 35*8, 36*8, 37*8, 38*8, 39*8 },
	64*8    /* every sprite takes 64 bytes */
};



static struct GfxDecodeInfo gfxdecodeinfo[] =
{
	{ REGION_GFX1, 0, &charlayout,       0, 32 },
	{ REGION_GFX2, 0, &spritelayout,  32*4, 32 },
	{ -1 } /* end of array */
};



static struct namco_interface namco_interface =
{
	3072000/32,	/* sample rate */
	3,			/* number of voices */
	100,		/* playback volume */
	REGION_SOUND1	/* memory region */
};

static const char *galaga_sample_names[] =
{
	"*galaga",
	"bang.wav",
	"init.wav",
	0       /* end of array */
};

static struct Samplesinterface samples_interface =
{
	1,	/* one channel */
	80,	/* volume */
	galaga_sample_names
};


static MACHINE_DRIVER_START( galaga )

	/* basic machine hardware */
	MDRV_CPU_ADD(Z80, 3125000)        /* 3.125 MHz */
	MDRV_CPU_MEMORY(readmem_cpu1,writemem_cpu1)
	MDRV_CPU_VBLANK_INT(galaga_interrupt_1,1)

	MDRV_CPU_ADD(Z80, 3125000)        /* 3.125 MHz */
	MDRV_CPU_MEMORY(readmem_cpu2,writemem_cpu2)
	MDRV_CPU_VBLANK_INT(galaga_interrupt_2,1)

	MDRV_CPU_ADD(Z80, 3125000)        /* 3.125 MHz */
	MDRV_CPU_MEMORY(readmem_cpu3,writemem_cpu3)
	MDRV_CPU_VBLANK_INT(galaga_interrupt_3,2)

	MDRV_FRAMES_PER_SECOND(60.606060)
	MDRV_VBLANK_DURATION(DEFAULT_60HZ_VBLANK_DURATION)
	MDRV_INTERLEAVE(99)	/* 99 CPU slices per frame - with 100, galagab2 hangs on coin insertion */

	MDRV_MACHINE_INIT(galaga)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_SIZE(36*8, 28*8)
	MDRV_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
	MDRV_GFXDECODE(gfxdecodeinfo)
	MDRV_PALETTE_LENGTH(32+64)
	MDRV_COLORTABLE_LENGTH(64*4)  /* 32 for the characters, 64 for the stars */

	MDRV_PALETTE_INIT(galaga)
	MDRV_VIDEO_START(galaga)
	MDRV_VIDEO_UPDATE(galaga)

	/* sound hardware */
	MDRV_SOUND_ADD(NAMCO, namco_interface)
	MDRV_SOUND_ADD(SAMPLES, samples_interface)
MACHINE_DRIVER_END



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

  Game driver(s)

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

ROM_START( galaga )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "04m_g01.bin",  0x0000, 0x1000, 0xa3a0f743 )
	ROM_LOAD( "04k_g02.bin",  0x1000, 0x1000, 0x43bb0d5c )
	ROM_LOAD( "04j_g03.bin",  0x2000, 0x1000, 0x753ce503 )
	ROM_LOAD( "04h_g04.bin",  0x3000, 0x1000, 0x83874442 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "04e_g05.bin",  0x0000, 0x1000, 0x3102fccd )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "04d_g06.bin",  0x0000, 0x1000, 0x8995088d )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "07m_g08.bin",  0x0000, 0x1000, 0x58b2f47c )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( galagamw )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "3200a.bin",    0x0000, 0x1000, 0x3ef0b053 )
	ROM_LOAD( "3300b.bin",    0x1000, 0x1000, 0x1b280831 )
	ROM_LOAD( "3400c.bin",    0x2000, 0x1000, 0x16233d33 )
	ROM_LOAD( "3500d.bin",    0x3000, 0x1000, 0x0aaf5c23 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "3600e.bin",    0x0000, 0x1000, 0xbc556e76 )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "3700g.bin",    0x0000, 0x1000, 0xb07f0aa4 )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "07m_g08.bin",  0x0000, 0x1000, 0x58b2f47c )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( galagads )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "3200a.bin",    0x0000, 0x1000, 0x3ef0b053 )
	ROM_LOAD( "3300b.bin",    0x1000, 0x1000, 0x1b280831 )
	ROM_LOAD( "3400c.bin",    0x2000, 0x1000, 0x16233d33 )
	ROM_LOAD( "3500d.bin",    0x3000, 0x1000, 0x0aaf5c23 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "3600fast.bin", 0x0000, 0x1000, 0x23d586e5 )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "3700g.bin",    0x0000, 0x1000, 0xb07f0aa4 )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "07m_g08.bin",  0x0000, 0x1000, 0x58b2f47c )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( gallag )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "04m_g01.bin",  0x0000, 0x1000, 0xa3a0f743 )
	ROM_LOAD( "gallag.2",     0x1000, 0x1000, 0x5eda60a7 )
	ROM_LOAD( "04j_g03.bin",  0x2000, 0x1000, 0x753ce503 )
	ROM_LOAD( "04h_g04.bin",  0x3000, 0x1000, 0x83874442 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "04e_g05.bin",  0x0000, 0x1000, 0x3102fccd )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "04d_g06.bin",  0x0000, 0x1000, 0x8995088d )

	ROM_REGION( 0x10000, REGION_CPU4, 0 )	/* 64k for a Z80 which emulates the custom I/O chip (not used) */
	ROM_LOAD( "gallag.6",     0x0000, 0x1000, 0x001b70bc )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "gallag.8",     0x0000, 0x1000, 0x169a98a4 )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( galagab2 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "g1",           0x0000, 0x1000, 0xab036c9f )
	ROM_LOAD( "g2",           0x1000, 0x1000, 0xd9232240 )
	ROM_LOAD( "04j_g03.bin",  0x2000, 0x1000, 0x753ce503 )
	ROM_LOAD( "g4",           0x3000, 0x1000, 0x499fcc76 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "04e_g05.bin",  0x0000, 0x1000, 0x3102fccd )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "04d_g06.bin",  0x0000, 0x1000, 0x8995088d )

	ROM_REGION( 0x10000, REGION_CPU4, 0 )	/* 64k for a Z80 which emulates the custom I/O chip (not used) */
	ROM_LOAD( "10h_g07.bin",  0x0000, 0x1000, 0x035e300c )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "gallag.8",     0x0000, 0x1000, 0x169a98a4 )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( galaga84 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "g1",           0x0000, 0x1000, 0xab036c9f )
	ROM_LOAD( "gal84_u2",     0x1000, 0x1000, 0x4d832a30 )
	ROM_LOAD( "04j_g03.bin",  0x2000, 0x1000, 0x753ce503 )
	ROM_LOAD( "g4",           0x3000, 0x1000, 0x499fcc76 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "gal84_u5",     0x0000, 0x1000, 0xbb5caae3 )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "04d_g06.bin",  0x0000, 0x1000, 0x8995088d )

	ROM_REGION( 0x10000, REGION_CPU4, 0 )	/* 64k for a Z80 which emulates the custom I/O chip (not used) */
	ROM_LOAD( "10h_g07.bin",  0x0000, 0x1000, 0x035e300c )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "07m_g08.bin",  0x0000, 0x1000, 0x58b2f47c )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "gal84u4d",     0x0000, 0x1000, 0x22e339d5 )
	ROM_LOAD( "gal84u4e",     0x1000, 0x1000, 0x60dcf940 )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END

ROM_START( nebulbee )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )     /* 64k for code for the first CPU  */
	ROM_LOAD( "nebulbee.01",  0x0000, 0x1000, 0xf405f2c4 )
	ROM_LOAD( "nebulbee.02",  0x1000, 0x1000, 0x31022b60 )
	ROM_LOAD( "04j_g03.bin",  0x2000, 0x1000, 0x753ce503 )
	ROM_LOAD( "nebulbee.04",  0x3000, 0x1000, 0xd76788a5 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )     /* 64k for the second CPU */
	ROM_LOAD( "04e_g05.bin",  0x0000, 0x1000, 0x3102fccd )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )     /* 64k for the third CPU  */
	ROM_LOAD( "04d_g06.bin",  0x0000, 0x1000, 0x8995088d )

	ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "07m_g08.bin",  0x0000, 0x1000, 0x58b2f47c )

	ROM_REGION( 0x2000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD( "07e_g10.bin",  0x0000, 0x1000, 0xad447c80 )
	ROM_LOAD( "07h_g09.bin",  0x1000, 0x1000, 0xdd6f1afc )

	ROM_REGION( 0x0320, REGION_PROMS, 0 )
	ROM_LOAD( "5n.bin",       0x0000, 0x0020, 0x54603c6b )	/* palette */
	ROM_LOAD( "2n.bin",       0x0020, 0x0100, 0xa547d33b )	/* char lookup table */
	ROM_LOAD( "1c.bin",       0x0120, 0x0100, 0xb6f585fb )	/* sprite lookup table */
	ROM_LOAD( "5c.bin",       0x0220, 0x0100, 0x8bd565f6 )	/* unknown */

	ROM_REGION( 0x0100, REGION_SOUND1, 0 )	/* sound prom */
	ROM_LOAD( "1d.bin",       0x0000, 0x0100, 0x86d92b24 )
ROM_END



GAME( 1981, galaga,   0,      galaga, galaganm, 0, ROT90, "Namco", "Galaga (Namco)" )
GAME( 1981, galagamw, galaga, galaga, galaga,   0, ROT90, "[Namco] (Midway license)", "Galaga (Midway)" )
GAME( 1981, galagads, galaga, galaga, galaga,   0, ROT90, "hack", "Galaga (fast shoot)" )
GAME( 1982, gallag,   galaga, galaga, galaganm, 0, ROT90, "bootleg", "Gallag" )
GAME( 1981, galagab2, galaga, galaga, galaganm, 0, ROT90, "bootleg", "Galaga (bootleg)" )
GAME( 1984, galaga84, galaga, galaga, galaganm, 0, ROT90, "hack", "Galaga '84" )
GAME( 1984, nebulbee, galaga, galaga, galaganm, 0, ROT90, "hack", "Nebulous Bee" )
