/*
Konami "Twin16"

driver by Phil Stroffolino

CPU   : 68000(10M)x2 Z-80
SOUND : YM2151 007232 uPD7759C
OSC.  : 3.579545MHz 18432.00KHz

Main processors are a pair of 68000 CPUs
Sounds are generated by a Z80, a Yamaha 2151 and 3012, a Konami custom IC and a uPD7759C

    Dark Adventure / Devil World / Majuu no Ohkoku
    Vulcan Venture / Gradius II
    Cuebrick
    MIA (Japan)
    Final Round / Hard Puncher (Japan)

68000 Memory Map for Konami Twin System

    CPUA                                        CPUB
    0x000000..0x03ffff  ROM                     0x000000..0x03ffff
    0x040000..0x043fff  communication RAM       0x040000..0x043fff (shared)
    0x060000..0x063fff  work RAM                0x060000..0x063fff
    0x080000..0x080fff  palette
    0x080000..0x09ffff  ROM (extra tile data)
    0x0a0000..0x0a0001  IRQ control             0x0a0000..0x0a0001
    0x0a0008..0x0a0009  sound command
    0x0a0010..0xa00011  watchdog
    0x0c0000..0x0c0001  screenflip
    0x0c0002..0x0c000f  scroll registers

    0x100000..0x103fff  FIXRAM (text layer)
    0x120000..0x123fff  VIDRAM (tilemaps)       0x480000..0x483fff (shared)
    0x140000..0x143fff  OBJRAM (sprites)        0x400000..0x403fff (shared)
                        ZIP RAM (tiles)         0x500000..0x53ffff
                        gfx ROM (banked)        0x600000..0x77ffff
                        sprite gfx RAM          0x780000..0x79ffff

Known Issues:
- repeated uPD7759C samples in fround, disconnecting reset helps but doesn't fix it
- see video/twin16.c for graphics related issues

*/

#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "cpu/z80/z80.h"
#include "sound/2151intf.h"
#include "sound/k007232.h"
#include "sound/upd7759.h"
#include "includes/twin16.h"
#include "includes/konamipt.h"

UINT16 twin16_custom_video;
UINT16 *twin16_gfx_rom;
UINT16 *twin16_sprite_gfx_ram;
UINT16 *twin16_tile_gfx_ram;
UINT16 *twin16_text_ram;

static UINT16 twin16_CPUA_register, twin16_CPUB_register;

#define CPUA_IRQ_ENABLE (twin16_CPUA_register & 0x20)
#define CPUB_IRQ_ENABLE (twin16_CPUB_register & 0x02)

static UINT16 twin16_sound_command;

static int cuebrickj_nvram_bank;
static UINT16 cuebrickj_nvram[0x400*0x20];	// 32k paged in a 1k window


int twin16_spriteram_process_enable( void )
{
	return (twin16_CPUA_register & 0x40) == 0;
}

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

#define COMRAM_r					"comram"
#define COMRAM_w					"comram"

/* Read/Write Handlers */

static READ16_HANDLER( videoram16_r )
{
	return space->machine->generic.videoram.u16[offset];
}

static WRITE16_HANDLER( videoram16_w )
{
	COMBINE_DATA(space->machine->generic.videoram.u16 + offset);
}

static READ16_HANDLER( extra_rom_r )
{
	return ((UINT16 *)memory_region(space->machine, "gfx3"))[offset];
}

static READ16_HANDLER( twin16_gfx_rom1_r )
{
	return twin16_gfx_rom[offset + ((twin16_CPUB_register&0x04)?0x40000:0)];
}

static READ16_HANDLER( twin16_gfx_rom2_r )
{
	return twin16_gfx_rom[offset + 0x80000 + ((twin16_CPUB_register&0x04)?0x40000:0)];
}

static WRITE16_HANDLER( sound_command_w )
{
	COMBINE_DATA(&twin16_sound_command);
	soundlatch_w( space, 0, twin16_sound_command&0xff );
}

static WRITE16_HANDLER( twin16_CPUA_register_w )
{
	/*
    7   6   5   4   3   2   1   0
        X                           sprite processing disable
            X                       IRQ5 enable (CPUA)
                X                   0->1 trigger IRQ6 on CPUB
                    X               0->1 trigger IRQ on sound CPU
                        x   x   x   coin counters
    */
	UINT16 old = twin16_CPUA_register;
	COMBINE_DATA(&twin16_CPUA_register);
	if (twin16_CPUA_register != old)
	{
		if ((old & 0x08) == 0 && (twin16_CPUA_register & 0x08))
			cputag_set_input_line_and_vector(space->machine, "audiocpu", 0, HOLD_LINE, 0xff);

		if ((old & 0x40) && (twin16_CPUA_register & 0x40) == 0)
			twin16_spriteram_process(space->machine);

		if ((old & 0x10) == 0 && (twin16_CPUA_register & 0x10))
			cputag_set_input_line(space->machine, "sub", M68K_IRQ_6, HOLD_LINE);

		coin_counter_w(space->machine, 0, twin16_CPUA_register & 0x01);
		coin_counter_w(space->machine, 1, twin16_CPUA_register & 0x02);
		coin_counter_w(space->machine, 2, twin16_CPUA_register & 0x04);
	}
}

static WRITE16_HANDLER( twin16_CPUB_register_w )
{
	/*
    7   6   5   4   3   2   1   0
                        X           gfx bank select
                            X       IRQ5 enable
                                X   0->1 trigger IRQ6 on CPUA
    */
	UINT16 old = twin16_CPUB_register;
	COMBINE_DATA(&twin16_CPUB_register);
	if( twin16_CPUB_register!=old )
	{
		if ((old & 0x01) == 0 && (twin16_CPUB_register & 0x01))
			cputag_set_input_line(space->machine, "maincpu", M68K_IRQ_6, HOLD_LINE);
	}
}

static WRITE16_HANDLER( fround_CPU_register_w )
{
	/*
    7   6   5   4   3   2   1   0
                    X               0->1 trigger IRQ on sound CPU
                            x   x   coin counters
    */
	UINT16 old = twin16_CPUA_register;
	COMBINE_DATA(&twin16_CPUA_register);
	if (twin16_CPUA_register != old)
	{
		if ((old & 0x08) == 0 && (twin16_CPUA_register & 0x08))
			cputag_set_input_line_and_vector(space->machine, "audiocpu", 0, HOLD_LINE, 0xff);

		coin_counter_w(space->machine, 0, twin16_CPUA_register & 0x01);
		coin_counter_w(space->machine, 1, twin16_CPUA_register & 0x02);
	}
}

static READ16_HANDLER( twin16_input_r )
{
	switch( offset )
	{
		case 0x00: return input_port_read(space->machine, "SYSTEM");
		case 0x01: return input_port_read(space->machine, "P1");
		case 0x02: return input_port_read(space->machine, "P2");
		case 0x03: return input_port_read(space->machine, "P3");
		case 0x08: return input_port_read(space->machine, "DSW2");
		case 0x09: return input_port_read(space->machine, "DSW1");
		case 0x0c: return input_port_read(space->machine, "DSW3");
		default: break;
	}
	return 0;
}

static READ8_DEVICE_HANDLER( twin16_upd_busy_r )
{
	return upd7759_busy_r(device);
}

static WRITE8_DEVICE_HANDLER( twin16_upd_reset_w )
{
	upd7759_reset_w(device, data & 2);
}

static WRITE8_DEVICE_HANDLER( twin16_upd_start_w )
{
	upd7759_start_w(device, data & 1);
}

static READ16_HANDLER( cuebrickj_nvram_r )
{
	return cuebrickj_nvram[offset + (cuebrickj_nvram_bank * 0x400 / 2)];
}

static WRITE16_HANDLER( cuebrickj_nvram_w )
{
	COMBINE_DATA(&cuebrickj_nvram[offset + (cuebrickj_nvram_bank * 0x400 / 2)]);
}

static WRITE16_HANDLER( cuebrickj_nvram_bank_w )
{
	cuebrickj_nvram_bank = (data >> 8);
}

/* Memory Maps */

static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0x8000, 0x8fff) AM_RAM
	AM_RANGE(0x9000, 0x9000) AM_DEVWRITE("upd", twin16_upd_reset_w)
	AM_RANGE(0xa000, 0xa000) AM_READ(soundlatch_r)
	AM_RANGE(0xb000, 0xb00d) AM_DEVREADWRITE("konami", k007232_r, k007232_w)
	AM_RANGE(0xc000, 0xc001) AM_DEVREADWRITE("ymsnd", ym2151_r, ym2151_w)
	AM_RANGE(0xd000, 0xd000) AM_DEVWRITE("upd", upd7759_port_w)
	AM_RANGE(0xe000, 0xe000) AM_DEVWRITE("upd", twin16_upd_start_w)
	AM_RANGE(0xf000, 0xf000) AM_DEVREAD("upd", twin16_upd_busy_r)	// miaj writes 0 to it
	ADDRESS_MAP_END

static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x03ffff) AM_ROM
	AM_RANGE(0x040000, 0x043fff) AM_READ_BANK(COMRAM_r) AM_WRITE_BANK(COMRAM_w)
//  AM_RANGE(0x044000, 0x04ffff) AM_NOP             // miaj
	AM_RANGE(0x060000, 0x063fff) AM_RAM
	AM_RANGE(0x080000, 0x080fff) AM_RAM_WRITE(twin16_paletteram_word_w) AM_BASE_GENERIC(paletteram)
	AM_RANGE(0x081000, 0x081fff) AM_WRITENOP
	AM_RANGE(0x0a0000, 0x0a001b) AM_READ(twin16_input_r)
	AM_RANGE(0x0a0000, 0x0a0001) AM_WRITE(twin16_CPUA_register_w)
	AM_RANGE(0x0a0008, 0x0a0009) AM_WRITE(sound_command_w)
	AM_RANGE(0x0a0010, 0x0a0011) AM_WRITE(watchdog_reset16_w)
	AM_RANGE(0x0b0000, 0x0b03ff) AM_READWRITE(cuebrickj_nvram_r, cuebrickj_nvram_w)
	AM_RANGE(0x0b0400, 0x0b0401) AM_WRITE(cuebrickj_nvram_bank_w)
	AM_RANGE(0x0c0000, 0x0c000f) AM_WRITE(twin16_video_register_w)
	AM_RANGE(0x0c000e, 0x0c000f) AM_READ(twin16_sprite_status_r)
	AM_RANGE(0x100000, 0x103fff) AM_RAM_WRITE(twin16_text_ram_w) AM_BASE(&twin16_text_ram)
//  AM_RANGE(0x104000, 0x105fff) AM_NOP             // miaj
	AM_RANGE(0x120000, 0x123fff) AM_RAM AM_BASE_GENERIC(videoram)
	AM_RANGE(0x140000, 0x143fff) AM_RAM AM_SHARE("share1") AM_BASE_SIZE_GENERIC(spriteram)
ADDRESS_MAP_END

static ADDRESS_MAP_START( sub_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x03ffff) AM_ROM
	AM_RANGE(0x040000, 0x043fff) AM_READ_BANK(COMRAM_r) AM_WRITE_BANK(COMRAM_w)
//  AM_RANGE(0x044000, 0x04ffff) AM_NOP             // miaj
	AM_RANGE(0x060000, 0x063fff) AM_RAM
	AM_RANGE(0x080000, 0x09ffff) AM_READ(extra_rom_r)
	AM_RANGE(0x0a0000, 0x0a0001) AM_WRITE(twin16_CPUB_register_w)
	AM_RANGE(0x400000, 0x403fff) AM_RAM AM_SHARE("share1")
	AM_RANGE(0x480000, 0x483fff) AM_READWRITE(videoram16_r, videoram16_w)
	AM_RANGE(0x500000, 0x53ffff) AM_RAM AM_BASE(&twin16_tile_gfx_ram)
	AM_RANGE(0x600000, 0x6fffff) AM_READ(twin16_gfx_rom1_r)
	AM_RANGE(0x700000, 0x77ffff) AM_READ(twin16_gfx_rom2_r)
	AM_RANGE(0x780000, 0x79ffff) AM_RAM AM_BASE(&twin16_sprite_gfx_ram)
ADDRESS_MAP_END

static ADDRESS_MAP_START( fround_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x03ffff) AM_ROM
	AM_RANGE(0x040000, 0x043fff) AM_READ_BANK(COMRAM_r) AM_WRITE_BANK(COMRAM_w)
	AM_RANGE(0x060000, 0x063fff) AM_RAM
	AM_RANGE(0x080000, 0x080fff) AM_RAM_WRITE(twin16_paletteram_word_w) AM_BASE_GENERIC(paletteram)
	AM_RANGE(0x0a0000, 0x0a001b) AM_READ(twin16_input_r)
	AM_RANGE(0x0a0000, 0x0a0001) AM_WRITE(fround_CPU_register_w)
	AM_RANGE(0x0a0008, 0x0a0009) AM_WRITE(sound_command_w)
	AM_RANGE(0x0a0010, 0x0a0011) AM_WRITE(watchdog_reset16_w)
	AM_RANGE(0x0c0000, 0x0c000f) AM_WRITE(twin16_video_register_w)
	AM_RANGE(0x0c000e, 0x0c000f) AM_READ(twin16_sprite_status_r)
	AM_RANGE(0x0e0000, 0x0e0001) AM_WRITE(fround_gfx_bank_w)
	AM_RANGE(0x100000, 0x103fff) AM_RAM_WRITE(twin16_text_ram_w) AM_BASE(&twin16_text_ram)
	AM_RANGE(0x120000, 0x123fff) AM_RAM AM_BASE_GENERIC(videoram)
	AM_RANGE(0x140000, 0x143fff) AM_RAM AM_BASE_SIZE_GENERIC(spriteram)
	AM_RANGE(0x500000, 0x6fffff) AM_READ(twin16_gfx_rom1_r)
ADDRESS_MAP_END

/* Input Ports */

static INPUT_PORTS_START( devilw )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SERVICE4 )	// map, advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123_UNK(1)				// button1 = start/powerup, button2 = attack, button3 = jump

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")
	KONAMI_COINAGE(DEF_STR( Free_Play ), "Invalid")
	/* "Invalid" = both coin slots disabled */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_BIT( 0x1c, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Difficult ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0019 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END

static INPUT_PORTS_START( darkadv )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SERVICE4 )	// map, advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE2 )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123(1)					// button1 = start/jump, button2 = attack, button3 = dynamite
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE3 )

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	KONAMI8_B123_UNK(3)

	PORT_START("DSW1")	/* Coinage */
	PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0x0f, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x0e, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x0a, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x09, DEF_STR( 1C_7C ) )
	PORT_DIPSETTING(    0x00, "Invalid" )
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED)

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_BIT( 0x1c, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Difficult ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0019 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
INPUT_PORTS_END

static INPUT_PORTS_START( vulcan )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )	// advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123_UNK(1)				// button1 = powerup, button2 = shoot, button3 = missile

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")
	KONAMI_COINAGE(DEF_STR( Free_Play ), DEF_STR( None ))
	/* "None" = coin slot B disabled */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "4" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x18, 0x18, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x18, "20K 70K" )
	PORT_DIPSETTING(    0x10, "30K 80K" )
	PORT_DIPSETTING(    0x08, "20K" )
	PORT_DIPSETTING(    0x00, "70K" )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Difficult ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0018 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x00, "Upright Controls" )
	PORT_DIPSETTING(    0x02, DEF_STR( Single ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Dual ) )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
INPUT_PORTS_END


static INPUT_PORTS_START( gradius2 )	// same as vulcan, different bonus
	PORT_INCLUDE( vulcan )

	PORT_MODIFY("DSW2")
	PORT_DIPNAME( 0x18, 0x18, DEF_STR (Bonus_Life ) )
	PORT_DIPSETTING(    0x18, "20K 150K" )
	PORT_DIPSETTING(    0x10, "30K 200K" )
	PORT_DIPSETTING(    0x08, "20K" )
	PORT_DIPSETTING(    0x00, "70K" )
INPUT_PORTS_END

static INPUT_PORTS_START( fround )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )	// advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123_UNK(1)				// button1 = face punch, button2 = body punch, button3 = defend

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")
	KONAMI_COINAGE(DEF_STR( Free_Play ), "No Coin B")
	/* "No Coin B" = coins produce sound, but no effect on coin counter */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, "Energy" )
	PORT_DIPSETTING(    0x03, "18" )
	PORT_DIPSETTING(    0x02, "20" )
	PORT_DIPSETTING(    0x01, "22" )
	PORT_DIPSETTING(    0x00, "24" )
	PORT_BIT( 0x1c, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Difficult ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0018 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END

static INPUT_PORTS_START( miaj )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )	// advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123_UNK(1)				// button1 = knife, button2 = weapon, button3 = choice

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")
	KONAMI_COINAGE(DEF_STR( Free_Play ), "Invalid")
	/* "Invalid" = both coin slots disabled */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_DIPNAME( 0x18, 0x10, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x18, "30K 80K" )
	PORT_DIPSETTING(    0x10, "50K 100K" )
	PORT_DIPSETTING(    0x08, "50K" )
	PORT_DIPSETTING(    0x00, "100K" )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Difficult ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Difficult ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0018 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, "VRAM Character Check" )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END

static INPUT_PORTS_START( cuebrickj )
	PORT_START("SYSTEM")	/* 0xa0001 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )	// advance through tests
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("P1")	/* 0xa0003 */
	KONAMI8_B123_UNK(1)				// button1 = move, button2 = warp, button3 = stop

	PORT_START("P2")	/* 0xa0005 */
	KONAMI8_B123_UNK(2)

	PORT_START("P3")	/* 0xa0007 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSW1")
	KONAMI_COINAGE(DEF_STR( Free_Play ), "Invalid")
	/* "Invalid" = both coin slots disabled */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "4" )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x18, 0x18, "Machine Name" )
	PORT_DIPSETTING(    0x18, DEF_STR( None ) )
	PORT_DIPSETTING(    0x10, "Lewis" )
	PORT_DIPSETTING(    0x08, "Johnson" )
	PORT_DIPSETTING(    0x00, "George" )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")	/* 0xa0018 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x00, "Upright Controls" )
	PORT_DIPSETTING(    0x02, DEF_STR( Single ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Dual ) )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_DIPNAME( 0x08, 0x08, "Mode" )
	PORT_DIPSETTING(    0x08, "3" )
	PORT_DIPSETTING(    0x00, "4" )
	PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END

/* Graphics Layouts */

static const gfx_layout alpha_layout =
{
	8,8,
	0x200,
	4,
	{ 0,1,2,3 },
	{ 0*4,1*4,2*4,3*4,4*4,5*4,6*4,7*4 },
	{ 0*32,1*32,2*32,3*32,4*32,5*32,6*32,7*32 },
	8*32
};

/* Graphics Decode Info */

static GFXDECODE_START( twin16 )
	GFXDECODE_ENTRY( "gfx1", 0x00000, alpha_layout, 0, 16 )
GFXDECODE_END

/* Sound Interfaces */

static void volume_callback(running_device *device, int v)
{
	k007232_set_volume(device,0,(v >> 4) * 0x11,0);
	k007232_set_volume(device,1,0,(v & 0x0f) * 0x11);
}

static const k007232_interface k007232_config =
{
	volume_callback	/* external port callback */
};

/* Interrupt Generators */

static INTERRUPT_GEN( CPUA_interrupt )
{
	if (CPUA_IRQ_ENABLE) cpu_set_input_line(device, 5, HOLD_LINE);
}

static INTERRUPT_GEN( CPUB_interrupt )
{
	if (CPUB_IRQ_ENABLE) cpu_set_input_line(device, 5, HOLD_LINE);
}

/* Machine Drivers */

static MACHINE_RESET( twin16 )
{
	;
}

static MACHINE_START( twin16 )
{
	twin16_CPUA_register=0;
	twin16_CPUB_register=0;

	/* register for savestates */
	state_save_register_global(machine, twin16_CPUA_register);
	state_save_register_global(machine, twin16_CPUB_register);

	state_save_register_global(machine, twin16_sound_command);
	state_save_register_global(machine, cuebrickj_nvram_bank);
	state_save_register_global_array(machine, cuebrickj_nvram);
}

static MACHINE_DRIVER_START( twin16 )
	// basic machine hardware
	MDRV_CPU_ADD("maincpu", M68000, XTAL_18_432MHz/2)
	MDRV_CPU_PROGRAM_MAP(main_map)
	MDRV_CPU_VBLANK_INT("screen", CPUA_interrupt)

	MDRV_CPU_ADD("sub", M68000, XTAL_18_432MHz/2)
	MDRV_CPU_PROGRAM_MAP(sub_map)
	MDRV_CPU_VBLANK_INT("screen", CPUB_interrupt)

	MDRV_CPU_ADD("audiocpu", Z80, 3579545)
	MDRV_CPU_PROGRAM_MAP(sound_map)

	MDRV_QUANTUM_TIME(HZ(6000))

	MDRV_MACHINE_START(twin16)
	MDRV_MACHINE_RESET(twin16)

	// video hardware
	MDRV_VIDEO_ATTRIBUTES(VIDEO_HAS_SHADOWS | VIDEO_BUFFERS_SPRITERAM)

	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_REFRESH_RATE(((double)XTAL_18_432MHz / 2) / (576 * 264))
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2062)) // 32 lines
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(40*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(0, 40*8-1, 2*8, 30*8-1)

	MDRV_GFXDECODE(twin16)
	MDRV_PALETTE_LENGTH(0x400)

	MDRV_VIDEO_START(twin16)
	MDRV_VIDEO_UPDATE(twin16)
	MDRV_VIDEO_EOF(twin16)

	// sound hardware
	MDRV_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")

	MDRV_SOUND_ADD("ymsnd", YM2151, 7159160/2)
	MDRV_SOUND_ROUTE(0, "lspeaker", 1.0)
	MDRV_SOUND_ROUTE(1, "rspeaker", 1.0)

	MDRV_SOUND_ADD("konami", K007232, 3579545)
	MDRV_SOUND_CONFIG(k007232_config)
	MDRV_SOUND_ROUTE(0, "lspeaker", 0.12) // estimated with gradius2 OST
	MDRV_SOUND_ROUTE(0, "rspeaker", 0.12)
	MDRV_SOUND_ROUTE(1, "lspeaker", 0.12)
	MDRV_SOUND_ROUTE(1, "rspeaker", 0.12)

	MDRV_SOUND_ADD("upd", UPD7759, UPD7759_STANDARD_CLOCK)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.20)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.20)
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( devilw )
	MDRV_IMPORT_FROM(twin16)
	MDRV_QUANTUM_TIME(HZ(60000)) // watchdog reset otherwise
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( fround )
	/* basic machine hardware */
	MDRV_CPU_ADD("maincpu", M68000, 10000000)
	MDRV_CPU_PROGRAM_MAP(fround_map)
	MDRV_CPU_VBLANK_INT("screen", CPUA_interrupt)

	MDRV_CPU_ADD("audiocpu", Z80, 3579545)
	MDRV_CPU_PROGRAM_MAP(sound_map)

	MDRV_QUANTUM_TIME(HZ(6000))

	MDRV_MACHINE_START(twin16)
	MDRV_MACHINE_RESET(twin16)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_HAS_SHADOWS | VIDEO_BUFFERS_SPRITERAM)

	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(40*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(0, 40*8-1, 2*8, 30*8-1)

	MDRV_GFXDECODE(twin16)
	MDRV_PALETTE_LENGTH(0x400)

	MDRV_VIDEO_START(twin16)
	MDRV_VIDEO_UPDATE(twin16)
	MDRV_VIDEO_EOF(twin16)

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")

	MDRV_SOUND_ADD("ymsnd", YM2151, 7159160/2)
	MDRV_SOUND_ROUTE(0, "lspeaker", 1.0)
	MDRV_SOUND_ROUTE(1, "rspeaker", 1.0)

	MDRV_SOUND_ADD("konami", K007232, 3579545)
	MDRV_SOUND_CONFIG(k007232_config)
	MDRV_SOUND_ROUTE(0, "lspeaker", 0.12)
	MDRV_SOUND_ROUTE(0, "rspeaker", 0.12)
	MDRV_SOUND_ROUTE(1, "lspeaker", 0.12)
	MDRV_SOUND_ROUTE(1, "rspeaker", 0.12)

	MDRV_SOUND_ADD("upd", UPD7759, UPD7759_STANDARD_CLOCK)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.20)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.20)
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( miaj )
	MDRV_IMPORT_FROM(twin16)
	MDRV_SCREEN_MODIFY("screen")
	MDRV_SCREEN_VISIBLE_AREA(1*8, 39*8-1, 2*8, 30*8-1)
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( cuebrickj )
	MDRV_IMPORT_FROM(twin16)
	MDRV_SCREEN_MODIFY("screen")
	MDRV_SCREEN_VISIBLE_AREA(1*8, 39*8-1, 2*8, 30*8-1)
	MDRV_NVRAM_HANDLER(generic_0fill)
MACHINE_DRIVER_END

/* ROMs */

ROM_START( devilw )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "687_t05.6n",	0x00000, 0x10000, CRC(8ab7dc61) SHA1(de8e93f04f22fa07ea6c379eeae12f8fcb48f751) )
	ROM_LOAD16_BYTE( "687_t04.4n",	0x00001, 0x10000, CRC(c69924da) SHA1(9b7220eac95fd92f32fec92b21f4f02f871c5d43) )
	ROM_LOAD16_BYTE( "687_t09.6r",	0x20000, 0x10000, CRC(fae97de0) SHA1(25b085c9de0943a0112d76447ca0504ed57cad85) )
	ROM_LOAD16_BYTE( "687_t08.4r",	0x20001, 0x10000, CRC(8c898d67) SHA1(0dd1a4467f97c993ea8d40398f46c3fc88c889bd) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "687_q07.10n",	0x00000, 0x10000, CRC(53110c0b) SHA1(a473486f7c99ab758187376d5bd89581e0b7cbdf) )
	ROM_LOAD16_BYTE( "687_q06.8n",	0x00001, 0x10000, CRC(9c53a0c5) SHA1(3b195a88af2b0198af47e4f7140087bf5a7feee6) )
	ROM_LOAD16_BYTE( "687_q13.10s",	0x20000, 0x10000, CRC(36ae6014) SHA1(102d4c3215fb5f199ce6f93ce92725b5cce0b01d) )
	ROM_LOAD16_BYTE( "687_q12.8s",	0x20001, 0x10000, CRC(6d012167) SHA1(d608e29e0b2e834c099386b6ebb667e4bfc40ce7) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "687_l03.10a", 0x00000,  0x8000, CRC(7201983c) SHA1(06d089406d2f702e8d51ffdfbf34e4727a28d506) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "687_m14.d8", 0x00000,  0x4000, CRC(d7338557) SHA1(9b384baafabaab3888a0139674f0b530303684ca) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "687i17.p16",	0x000000, 0x80000, CRC(66cb3923) SHA1(3c1fc1dff77201cf8d8c4594c965695066c1701c) )
	ROM_LOAD16_WORD( "687i18.p18",	0x080000, 0x80000, CRC(a1c7d0db) SHA1(901bc6e1982b9a8c2150a802995256d0168cc605) )
	ROM_LOAD16_WORD( "687i15.p13",	0x100000, 0x80000, CRC(eec8c5b2) SHA1(c400dd8c7bb85d233815572acd547acf626e4c73) )
	ROM_LOAD16_WORD( "687i16.p15",	0x180000, 0x80000, CRC(746cf48b) SHA1(8f51df931b1de928f402f51bbaf02e37dfec1d6d) )

	ROM_REGION16_BE( 0x20000, "gfx3", 0 )	// tile data; mapped at 0x80000 on CPUB
	ROM_LOAD16_BYTE( "687_l11.10r",	0x00000, 0x10000, CRC(399deee8) SHA1(dcc65e95f28ae4e9b671e70ce0bd5ba0fe178506) )
	ROM_LOAD16_BYTE( "687_l10.8r",	0x00001, 0x10000, CRC(117c91ee) SHA1(dcf8efb25fc73cff916b66b7bcfd3c1fb2556a53) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "687_i01.5a", 0x00000, 0x20000, CRC(d4992dfb) SHA1(c65bef07b6adb9ab6328d679595450945dbf6a88) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "687_i02.7c", 0x00000, 0x20000, CRC(e5947501) SHA1(9ec7319bd97711981db60af6f477c2ba2ec7e6b8) )
ROM_END

ROM_START( majuu )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "687_s05.6n",	0x00000, 0x10000, CRC(bd99b434) SHA1(4dbcf3a57ff0b4c3a160e2a60c2ee3fd38f5a95d) )
	ROM_LOAD16_BYTE( "687_s04.4n",	0x00001, 0x10000, CRC(3df732e2) SHA1(32e42edbc6f9dfba6ff881c72b8b014b6905e7f3) )
	ROM_LOAD16_BYTE( "687_s09.6r",	0x20000, 0x10000, CRC(1f6efec3) SHA1(4177d300877e3ffcb481f534ef7b3e4bdc160be0) )
	ROM_LOAD16_BYTE( "687_s08.4r",	0x20001, 0x10000, CRC(8a16c8c6) SHA1(df3af1c137632eab98b1eea538cc4ef5b134f44f) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "687_q07.10n",	0x00000, 0x10000, CRC(53110c0b) SHA1(a473486f7c99ab758187376d5bd89581e0b7cbdf) )
	ROM_LOAD16_BYTE( "687_q06.8n",	0x00001, 0x10000, CRC(9c53a0c5) SHA1(3b195a88af2b0198af47e4f7140087bf5a7feee6) )
	ROM_LOAD16_BYTE( "687_q13.10s",	0x20000, 0x10000, CRC(36ae6014) SHA1(102d4c3215fb5f199ce6f93ce92725b5cce0b01d) )
	ROM_LOAD16_BYTE( "687_q12.8s",	0x20001, 0x10000, CRC(6d012167) SHA1(d608e29e0b2e834c099386b6ebb667e4bfc40ce7) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "687_l03.10a", 0x00000,  0x8000, CRC(7201983c) SHA1(06d089406d2f702e8d51ffdfbf34e4727a28d506) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "687_l14.d8", 0x00000,  0x4000, CRC(20ecccd6) SHA1(b8ac3186de5ea81ae1c64b9511b7a0718aabab48) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "687i17.p16",	0x000000, 0x80000, CRC(66cb3923) SHA1(3c1fc1dff77201cf8d8c4594c965695066c1701c) )
	ROM_LOAD16_WORD( "687i18.p18",	0x080000, 0x80000, CRC(a1c7d0db) SHA1(901bc6e1982b9a8c2150a802995256d0168cc605) )
	ROM_LOAD16_WORD( "687i15.p13",	0x100000, 0x80000, CRC(eec8c5b2) SHA1(c400dd8c7bb85d233815572acd547acf626e4c73) )
	ROM_LOAD16_WORD( "687i16.p15",	0x180000, 0x80000, CRC(746cf48b) SHA1(8f51df931b1de928f402f51bbaf02e37dfec1d6d) )

	ROM_REGION16_BE( 0x20000, "gfx3", 0 )	// tile data; mapped at 0x80000 on CPUB
	ROM_LOAD16_BYTE( "687_l11.10r",	0x00000, 0x10000, CRC(399deee8) SHA1(dcc65e95f28ae4e9b671e70ce0bd5ba0fe178506) )
	ROM_LOAD16_BYTE( "687_l10.8r",	0x00001, 0x10000, CRC(117c91ee) SHA1(dcf8efb25fc73cff916b66b7bcfd3c1fb2556a53) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "687_i01.5a", 0x00000, 0x20000, CRC(d4992dfb) SHA1(c65bef07b6adb9ab6328d679595450945dbf6a88) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "687_i02.7c", 0x00000, 0x20000, CRC(e5947501) SHA1(9ec7319bd97711981db60af6f477c2ba2ec7e6b8) )
ROM_END

ROM_START( darkadv )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "687_n05.6n",	0x00000, 0x10000, CRC(a9195b0b) SHA1(a5b30c93dc962b5aef33bab7e257ed606f00c9f2) )
	ROM_LOAD16_BYTE( "687_n04.4n",	0x00001, 0x10000, CRC(65b55105) SHA1(ef102eebf34cceebafb55b04003ab9173af43458) )
	ROM_LOAD16_BYTE( "687_n09.6r",	0x20000, 0x10000, CRC(1c6b594c) SHA1(06e4eab7f544170ac40e8c77b9ebb236a6094367) )
	ROM_LOAD16_BYTE( "687_n08.4r",	0x20001, 0x10000, CRC(a9603196) SHA1(a3ab00a446531d370809d8e405cabe2d74cb612b) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "687_n07.10n",	0x00000, 0x10000, CRC(6154322a) SHA1(e84c75b4d346ade2cfb5d56454282fafb04c2d77) )
	ROM_LOAD16_BYTE( "687_n06.8n",	0x00001, 0x10000, CRC(37a72e8b) SHA1(574d655ba7cda2f8eb628155fb8662a4ee5f23e5) )
	ROM_LOAD16_BYTE( "687_n13.10s",	0x20000, 0x10000, CRC(f1c252af) SHA1(dbe78352ae5b284870becc92139773f66c52ed7d) )
	ROM_LOAD16_BYTE( "687_n12.8s",	0x20001, 0x10000, CRC(da221944) SHA1(c288ee583414a077f0d8b815b8e01b7f19a5fafe) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "687_n03.10a", 0x00000,  0x8000, CRC(a24c682f) SHA1(cf053270d3f77448ff802db832598ae3cf7dae6c) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "687_n14.d8",	0x0000, 0x4000, CRC(c76ac6d2) SHA1(d8fec255f1f7177a3716a5894fb679cbe172b6ea) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "687i17.p16",	0x000000, 0x80000, CRC(66cb3923) SHA1(3c1fc1dff77201cf8d8c4594c965695066c1701c) )
	ROM_LOAD16_WORD( "687i18.p18",	0x080000, 0x80000, CRC(a1c7d0db) SHA1(901bc6e1982b9a8c2150a802995256d0168cc605) )
	ROM_LOAD16_WORD( "687i15.p13",	0x100000, 0x80000, CRC(eec8c5b2) SHA1(c400dd8c7bb85d233815572acd547acf626e4c73) )
	ROM_LOAD16_WORD( "687i16.p15",	0x180000, 0x80000, CRC(746cf48b) SHA1(8f51df931b1de928f402f51bbaf02e37dfec1d6d) )

	ROM_REGION16_BE( 0x20000, "gfx3", 0 ) // tile data; mapped at 0x80000 on CPUB
	ROM_LOAD16_BYTE( "687_l11.10r",	0x00000, 0x10000, CRC(399deee8) SHA1(dcc65e95f28ae4e9b671e70ce0bd5ba0fe178506) )
	ROM_LOAD16_BYTE( "687_l10.8r",	0x00001, 0x10000, CRC(117c91ee) SHA1(dcf8efb25fc73cff916b66b7bcfd3c1fb2556a53) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "687_i01.5a", 0x00000, 0x20000, CRC(d4992dfb) SHA1(c65bef07b6adb9ab6328d679595450945dbf6a88) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "687_i02.7c", 0x00000, 0x20000, CRC(e5947501) SHA1(9ec7319bd97711981db60af6f477c2ba2ec7e6b8) )
ROM_END

ROM_START( vulcan )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_w05.6n",	0x00000, 0x10000, CRC(6e0e99cd) SHA1(f9f4ef617aee83397b0ac98a5cc92f60d3a3d5ed) )
	ROM_LOAD16_BYTE( "785_w04.4n",	0x00001, 0x10000, CRC(23ec74ca) SHA1(901c7c798b113232f20e24f61940ed6ef5148599) )
	ROM_LOAD16_BYTE( "785_w09.6r",	0x20000, 0x10000, CRC(377e4f28) SHA1(d3af2e52c38b5d618cac2e66df99ab7950638fbc) )
	ROM_LOAD16_BYTE( "785_w08.4r",	0x20001, 0x10000, CRC(813d41ea) SHA1(58ba0e4b1afec3e5674286c44da14244591f1312) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_p07.10n",	0x00000, 0x10000, CRC(686d549d) SHA1(9687be801c4fb963bf6b0199e2ae9f5051213f7a) )
	ROM_LOAD16_BYTE( "785_p06.8n" ,	0x00001, 0x10000, CRC(70c94bee) SHA1(951e00ca4d3a47a21b4db05bcdc8ead45b42c3f1) )
	ROM_LOAD16_BYTE( "785_p13.10s",	0x20000, 0x10000, CRC(478fdb0a) SHA1(2e285ad6dcfc67f3e24d231e0e1be19036ce64d2) )
	ROM_LOAD16_BYTE( "785_p12.8s",	0x20001, 0x10000, CRC(38ea402a) SHA1(90ff2bd71435988cde967704ce3b1401de206683) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_h14.d8", 0x0000,	0x4000, CRC(02f4b16f) SHA1(45addc99f520770f38c6aa69aef9af59cfc410b5) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "785f17.p16",	0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) )
	ROM_LOAD16_WORD( "785f18.p18",	0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) )
	ROM_LOAD16_WORD( "785f15.p13",	0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) )
	ROM_LOAD16_WORD( "785f16.p15",	0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( vulcana )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_r05.6n",	0x00000, 0x10000, CRC(1777a57b) SHA1(9696fa9c6d53587972d213d5c12245e40fbc2bda) )
	ROM_LOAD16_BYTE( "785_r04.4n",	0x00001, 0x10000, CRC(790cbdf3) SHA1(e247c2be00169490aea945518c1a68e94799f5f4) )
	ROM_LOAD16_BYTE( "785_u09.6r",	0x20000, 0x10000, CRC(1aba7010) SHA1(bcf28640d5ba7864ed7112db23ff344434b2d944) )
	ROM_LOAD16_BYTE( "785_k08.4r",	0x20001, 0x10000, CRC(36bb1be1) SHA1(ce9a98443a453b1c05dfb8d0f8ba0f94292b9d30) ) /* Same as 785_r08.4r */

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_p07.10n",	0x00000, 0x10000, CRC(686d549d) SHA1(9687be801c4fb963bf6b0199e2ae9f5051213f7a) )
	ROM_LOAD16_BYTE( "785_p06.8n" ,	0x00001, 0x10000, CRC(70c94bee) SHA1(951e00ca4d3a47a21b4db05bcdc8ead45b42c3f1) )
	ROM_LOAD16_BYTE( "785_p13.10s",	0x20000, 0x10000, CRC(478fdb0a) SHA1(2e285ad6dcfc67f3e24d231e0e1be19036ce64d2) )
	ROM_LOAD16_BYTE( "785_p12.8s",	0x20001, 0x10000, CRC(38ea402a) SHA1(90ff2bd71435988cde967704ce3b1401de206683) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_h14.d8", 0x0000,	0x4000, CRC(02f4b16f) SHA1(45addc99f520770f38c6aa69aef9af59cfc410b5) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "785f17.p16",	0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) )
	ROM_LOAD16_WORD( "785f18.p18",	0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) )
	ROM_LOAD16_WORD( "785f15.p13",	0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) )
	ROM_LOAD16_WORD( "785f16.p15",	0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( vulcanb )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_n05.6n",	0x00000, 0x10000, CRC(6371d475) SHA1(82e6adc38de8363c126cd073dbc95eeec576db98) )
	ROM_LOAD16_BYTE( "785_n04.4n",	0x00001, 0x10000, CRC(b6f24b9e) SHA1(01685f89955385714062cc70316edce1a6a64e35) )
	ROM_LOAD16_BYTE( "785_r09.6r",	0x20000, 0x10000, CRC(fbfd1543) SHA1(8ef41a0a9d3d1de9395bdd5288199841c61d7045) )
	ROM_LOAD16_BYTE( "785_r08.4r",	0x20001, 0x10000, CRC(36bb1be1) SHA1(ce9a98443a453b1c05dfb8d0f8ba0f94292b9d30) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_g07.10n",	0x00000, 0x10000, CRC(ee09dd5d) SHA1(9b6fb12c2cb7930df12d9876810811540fd560ee) ) /* requires older CPU B code compared to other sets */
	ROM_LOAD16_BYTE( "785_g06.8n" ,	0x00001, 0x10000, CRC(85ab7af7) SHA1(5cb36918a5cdfd16611da76f07450ae1d115f2c7) )
	ROM_LOAD16_BYTE( "785_g13.10s",	0x20000, 0x10000, CRC(274f325d) SHA1(1076efa204eff0fc8a8788706b17b9a128023d35) )
	ROM_LOAD16_BYTE( "785_g12.8s",	0x20001, 0x10000, CRC(1625f933) SHA1(3f25d7396af46e75e3ae8456414e31935de43d34) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_h14.d8", 0x0000,	0x4000, CRC(02f4b16f) SHA1(45addc99f520770f38c6aa69aef9af59cfc410b5) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "785f17.p16",	0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) )
	ROM_LOAD16_WORD( "785f18.p18",	0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) )
	ROM_LOAD16_WORD( "785f15.p13",	0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) )
	ROM_LOAD16_WORD( "785f16.p15",	0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( gradius2 )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_x05.6n",	0x00000, 0x10000, CRC(8a23a7b8) SHA1(9846272c011715b17f146d5265a09e790d6e37cd) )
	ROM_LOAD16_BYTE( "785_x04.4n",	0x00001, 0x10000, CRC(88e466ce) SHA1(3a7d098b851bcf6dc8e7ff601d11563406c56666) )
	ROM_LOAD16_BYTE( "785_x09.6r",	0x20000, 0x10000, CRC(3f3d7d7a) SHA1(8e3acf980179e749ec642b6ff211c4ba57c6c592) )
	ROM_LOAD16_BYTE( "785_x08.4r",	0x20001, 0x10000, CRC(c39c8efd) SHA1(372dbb254525a7334fe79a42ba9851eafa856847) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_p07.10n",	0x00000, 0x10000, CRC(686d549d) SHA1(9687be801c4fb963bf6b0199e2ae9f5051213f7a) )
	ROM_LOAD16_BYTE( "785_p06.8n" ,	0x00001, 0x10000, CRC(70c94bee) SHA1(951e00ca4d3a47a21b4db05bcdc8ead45b42c3f1) )
	ROM_LOAD16_BYTE( "785_p13.10s",	0x20000, 0x10000, CRC(478fdb0a) SHA1(2e285ad6dcfc67f3e24d231e0e1be19036ce64d2) )
	ROM_LOAD16_BYTE( "785_p12.8s",	0x20001, 0x10000, CRC(38ea402a) SHA1(90ff2bd71435988cde967704ce3b1401de206683) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_g14.d8", 0x0000, 0x4000, CRC(9dcdad9d) SHA1(22f457408b453a71b7e91974aee1b1e735ff887f) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD_SWAP( "gr2.p16",	0x000000, 0x80000, CRC(4e7a7b82) SHA1(520b5ebd400954042d55cf243842a6d6b6d10210) ) /* 785f17.p16 byteswapped */
	ROM_LOAD16_WORD_SWAP( "gr2.p18",	0x080000, 0x80000, CRC(3f604e9a) SHA1(c5e0b6f6dd506209e8c07cbae89c821828f488ff) ) /* 785f18.p18 byteswapped */
	ROM_LOAD16_WORD_SWAP( "gr2.p13",	0x100000, 0x80000, CRC(5bd239ac) SHA1(9c96f6069d06a1d80c04650ed56bc5e1508db657) ) /* 785f15.p13 byteswapped */
	ROM_LOAD16_WORD_SWAP( "gr2.p15",	0x180000, 0x80000, CRC(95c6b8a3) SHA1(0a906af72d08993fd83f23d72ffb919801aa17af) ) /* 785f16.p15 byteswapped */

//  ROM_LOAD16_WORD( "785f17.p16",  0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) ) /* not working in a original PCB */
//  ROM_LOAD16_WORD( "785f18.p18",  0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) ) /* not working in a original PCB */
//  ROM_LOAD16_WORD( "785f15.p13",  0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) ) /* not working in a original PCB */
//  ROM_LOAD16_WORD( "785f16.p15",  0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) ) /* not working in a original PCB */

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( gradius2a )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_p05.6n",	0x00000, 0x10000, CRC(4db0e736) SHA1(45edf094da448d039af18a7b47a592a3de02f17b) )
	ROM_LOAD16_BYTE( "785_p04.4n",	0x00001, 0x10000, CRC(765b99e6) SHA1(4acae0cf2bf23f8a1cf7b650b018d22a9ae947c9) )
	ROM_LOAD16_BYTE( "785_t09.6r",	0x20000, 0x10000, CRC(4e3f4965) SHA1(130da6db0590779948a29fd5010f0e628e4f2ee6) )
	ROM_LOAD16_BYTE( "785_j08.4r",	0x20001, 0x10000, CRC(2b1c9108) SHA1(3d367a1b60f95798b478dc4a84daa9b362271d4d) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_p07.10n",	0x00000, 0x10000, CRC(686d549d) SHA1(9687be801c4fb963bf6b0199e2ae9f5051213f7a) )
	ROM_LOAD16_BYTE( "785_p06.8n" ,	0x00001, 0x10000, CRC(70c94bee) SHA1(951e00ca4d3a47a21b4db05bcdc8ead45b42c3f1) )
	ROM_LOAD16_BYTE( "785_p13.10s",	0x20000, 0x10000, CRC(478fdb0a) SHA1(2e285ad6dcfc67f3e24d231e0e1be19036ce64d2) )
	ROM_LOAD16_BYTE( "785_p12.8s",	0x20001, 0x10000, CRC(38ea402a) SHA1(90ff2bd71435988cde967704ce3b1401de206683) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_g14.d8", 0x0000, 0x4000, CRC(9dcdad9d) SHA1(22f457408b453a71b7e91974aee1b1e735ff887f) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "785f17.p16",	0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) )
	ROM_LOAD16_WORD( "785f18.p18",	0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) )
	ROM_LOAD16_WORD( "785f15.p13",	0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) )
	ROM_LOAD16_WORD( "785f16.p15",	0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( gradius2b )
	ROM_REGION( 0x40000, "maincpu", 0 ) 	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "785_p05.6n",	0x00000, 0x10000, CRC(4db0e736) SHA1(45edf094da448d039af18a7b47a592a3de02f17b) )
	ROM_LOAD16_BYTE( "785_p04.4n",	0x00001, 0x10000, CRC(765b99e6) SHA1(4acae0cf2bf23f8a1cf7b650b018d22a9ae947c9) )
	ROM_LOAD16_BYTE( "785_j09.6r",	0x20000, 0x10000, CRC(6d96a7e3) SHA1(cc1362f5922cf1e348a58d54d03320f394a2aeab) )
	ROM_LOAD16_BYTE( "785_j08.4r",	0x20001, 0x10000, CRC(2b1c9108) SHA1(3d367a1b60f95798b478dc4a84daa9b362271d4d) )

	ROM_REGION( 0x40000, "sub", 0 ) 	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "785_p07.10n",	0x00000, 0x10000, CRC(686d549d) SHA1(9687be801c4fb963bf6b0199e2ae9f5051213f7a) )
	ROM_LOAD16_BYTE( "785_p06.8n" ,	0x00001, 0x10000, CRC(70c94bee) SHA1(951e00ca4d3a47a21b4db05bcdc8ead45b42c3f1) )
	ROM_LOAD16_BYTE( "785_p13.10s",	0x20000, 0x10000, CRC(478fdb0a) SHA1(2e285ad6dcfc67f3e24d231e0e1be19036ce64d2) )
	ROM_LOAD16_BYTE( "785_p12.8s",	0x20001, 0x10000, CRC(38ea402a) SHA1(90ff2bd71435988cde967704ce3b1401de206683) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "785_g03.10a", 0x00000,  0x8000, CRC(67a3b50d) SHA1(3c83f3b0df73d9361ec3cda26a6c4c603a088419) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "785_g14.d8", 0x0000, 0x4000, CRC(9dcdad9d) SHA1(22f457408b453a71b7e91974aee1b1e735ff887f) ) /* Title screen graphics & characters */

	ROM_REGION16_BE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD( "785f17.p16",	0x000000, 0x80000, CRC(8fbec1a4) SHA1(71cbdb25470b5a2ca7e80c92f12fc47e28085793) )
	ROM_LOAD16_WORD( "785f18.p18",	0x080000, 0x80000, CRC(50d61e38) SHA1(051d332d93d435d19571e22d69ffc5395dbb16a4) )
	ROM_LOAD16_WORD( "785f15.p13",	0x100000, 0x80000, CRC(af96aef3) SHA1(a58e26a8b134ab6e7938cd4fa342c04c236efd99) )
	ROM_LOAD16_WORD( "785f16.p15",	0x180000, 0x80000, CRC(b858df1f) SHA1(c434da7ba54d59643fe6ca30bceccf16413904c3) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "785_f01.5a", 0x00000, 0x20000, CRC(a0d8d69e) SHA1(2994e5740b7c099d55fb162a363a26ef1995c756) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "785_f02.7c", 0x00000, 0x20000, CRC(c39f5ca4) SHA1(92ebea11b7d3a72d0f58c456f16a6ff36d6b3062) )
ROM_END

ROM_START( fround )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "870_m21.bin",	0x00000, 0x20000, CRC(436dbffb) SHA1(be8c8544f4d8ae86f216095753c6178a3cbf0e8d) )
	ROM_LOAD16_BYTE( "870_m20.bin",	0x00001, 0x20000, CRC(b1c79d6a) SHA1(76e95e87eaa96ba694675fde7706540c584a36fb) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "870_f03.10a", 0x00000,  0x8000, CRC(a645c727) SHA1(e173e79130f187d090766664f1c478d47062749c) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "870_f14.d8", 0x0000, 0x4000, CRC(c9b46615) SHA1(c0cddb1af47b8e0865055624cf4e89a111ac1b0f) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD("870c18.p18", 0x000000, 0x80000, CRC(07927fe8) SHA1(0ab5e0e785347fbed5c4b930a32876d6ce2bef4a) )
	ROM_LOAD16_WORD("870c17.p16", 0x080000, 0x80000, CRC(2bc99ff8) SHA1(9a06502317a71ca5662b79aedf47379b8e5434a9) )
	ROM_LOAD16_WORD("870c16.p15", 0x100000, 0x80000, CRC(41df6a1b) SHA1(32e0fdeb53628d18adde851e4496dd01ac6ec68f) )
	ROM_LOAD16_WORD("870c15.p13", 0x180000, 0x80000, CRC(8c9281df) SHA1(5e3d80be414db108d5363d0ea1b74021ba942c33) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "870_c01.5a", 0x00000, 0x20000, CRC(6af96546) SHA1(63b49b28c0f2ef8f52bc4c5955ad6a633dd553cf) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "870_c02.7c", 0x00000, 0x20000, CRC(54e12c6d) SHA1(8171441aeb1a1dc4d65fae59c7c217f992f70cbc) )
ROM_END

ROM_START( froundl )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "870_l21.bin",	0x00000, 0x20000, CRC(e21a3a19) SHA1(5f5793c88093bc8632eab673f5e0d954ac9b9177) )
	ROM_LOAD16_BYTE( "870_l20.bin",	0x00001, 0x20000, CRC(0ce9786f) SHA1(0fb0eef999ed09dd50eed403255887103fc35461) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "870_f03.10a", 0x00000,  0x8000, CRC(a645c727) SHA1(e173e79130f187d090766664f1c478d47062749c) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "870_f14.d8", 0x0000, 0x4000, CRC(c9b46615) SHA1(c0cddb1af47b8e0865055624cf4e89a111ac1b0f) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD("870c18.p18", 0x000000, 0x80000, CRC(07927fe8) SHA1(0ab5e0e785347fbed5c4b930a32876d6ce2bef4a) )
	ROM_LOAD16_WORD("870c17.p16", 0x080000, 0x80000, CRC(2bc99ff8) SHA1(9a06502317a71ca5662b79aedf47379b8e5434a9) )
	ROM_LOAD16_WORD("870c16.p15", 0x100000, 0x80000, CRC(41df6a1b) SHA1(32e0fdeb53628d18adde851e4496dd01ac6ec68f) )
	ROM_LOAD16_WORD("870c15.p13", 0x180000, 0x80000, CRC(8c9281df) SHA1(5e3d80be414db108d5363d0ea1b74021ba942c33) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "870_c01.5a", 0x00000, 0x20000, CRC(6af96546) SHA1(63b49b28c0f2ef8f52bc4c5955ad6a633dd553cf) )

	ROM_REGION( 0x20000, "upd", 0 )	// samples
	ROM_LOAD( "870_c02.7c", 0x00000, 0x20000, CRC(54e12c6d) SHA1(8171441aeb1a1dc4d65fae59c7c217f992f70cbc) )
ROM_END

ROM_START( hpuncher )
	ROM_REGION( 0x40000, "maincpu", 0 )	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "870_h05.6n",	0x00000, 0x10000, CRC(2bcfeef3) SHA1(8843e795a310e1a79b7b65226d9526197c2144ef) )
	ROM_LOAD16_BYTE( "870_h04.4n",	0x00001, 0x10000, CRC(b9f97fd3) SHA1(d15a659f753f9f475dfd4f7e96789bacc54cb1f9) )
	ROM_LOAD16_BYTE( "870_h09.6r",	0x20000, 0x10000, CRC(96a4f8b1) SHA1(2709f5236235b1b69c3367054fb998c1beb35625) )
	ROM_LOAD16_BYTE( "870_h08.4r",	0x20001, 0x10000, CRC(46d65156) SHA1(6dd9d97a8e3394db668da1fc6a46c166bca1f456) )

	ROM_REGION( 0x40000, "sub", 0 )	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "870_h07.10n",	0x00000, 0x10000, CRC(b4dda612) SHA1(e9612af11a151de1f0236629c84679f80936cae9) )
	ROM_LOAD16_BYTE( "870_h06.8n",	0x00001, 0x10000, CRC(696ba702) SHA1(e35c9aeab4305d828a347eaddf4abc806a889fa3) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "870_g03.10a", 0x00000,  0x8000, CRC(db9c10c8) SHA1(b2ec4d6800a4ab00dfcc8d3cd4abf9b9d7c5544a) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "870_f14.d8", 0x0000, 0x4000, CRC(c9b46615) SHA1(c0cddb1af47b8e0865055624cf4e89a111ac1b0f) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD("870c17.p16", 0x000000, 0x80000, CRC(2bc99ff8) SHA1(9a06502317a71ca5662b79aedf47379b8e5434a9) )
	ROM_LOAD16_WORD("870c18.p18", 0x080000, 0x80000, CRC(07927fe8) SHA1(0ab5e0e785347fbed5c4b930a32876d6ce2bef4a) )
	ROM_LOAD16_WORD("870c15.p13", 0x100000, 0x80000, CRC(8c9281df) SHA1(5e3d80be414db108d5363d0ea1b74021ba942c33) )
	ROM_LOAD16_WORD("870c16.p15", 0x180000, 0x80000, CRC(41df6a1b) SHA1(32e0fdeb53628d18adde851e4496dd01ac6ec68f) )

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD( "870_c01.5a", 0x00000, 0x20000, CRC(6af96546) SHA1(63b49b28c0f2ef8f52bc4c5955ad6a633dd553cf) )

	ROM_REGION( 0x20000, "upd", 0 ) 	// samples
	ROM_LOAD( "870_c02.7c", 0x00000, 0x20000, CRC(54e12c6d) SHA1(8171441aeb1a1dc4d65fae59c7c217f992f70cbc) )
ROM_END

ROM_START( miaj )
	ROM_REGION( 0x40000, "maincpu", 0 ) 	// 68000 code (CPU A)
	ROM_LOAD16_BYTE("808_r05.6n", 0x00000, 0x10000, CRC(91fd83f4) SHA1(12cba5828d1d752efe4fc1972bed0205ac277850) )
	ROM_LOAD16_BYTE("808_r04.4n", 0x00001, 0x10000, CRC(f1c8c597) SHA1(4e8e87aedc9dac4ed05816989210de49f4dd60d2) )
	ROM_LOAD16_BYTE("808_r09.6r", 0x20000, 0x10000, CRC(f74d4467) SHA1(2b2491ee7ece979f2ec849075b0c30b6c1ed6bae) )
	ROM_LOAD16_BYTE("808_r08.4r", 0x20001, 0x10000, CRC(26f21704) SHA1(123cb2e4bcb25d82faa75e4505f9859c10bca754) )

	ROM_REGION( 0x40000, "sub", 0 ) 	// 68000 code (CPU B)
	ROM_LOAD16_BYTE("808_e07.10n", 0x00000, 0x10000, CRC(297bdcea) SHA1(41ed650cbc4f56777fa352812e9a560554459f90) )
	ROM_LOAD16_BYTE("808_e06.8n",  0x00001, 0x10000, CRC(8f576b33) SHA1(cd8c9a45626c30571ca12d0241cccc092c0903a0) )
	ROM_LOAD16_BYTE("808_e13.10s", 0x20000, 0x10000, CRC(1fa708f4) SHA1(9511a19f50fb61571c2986c72d1a85e87b8d0495) )
	ROM_LOAD16_BYTE("808_e12.8s",  0x20001, 0x10000, CRC(d62f1fde) SHA1(1e55084f1294b6ac7c152fcd1800511fcab5d360) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "808_e03.10a", 0x00000,  0x8000, CRC(3d93a7cd) SHA1(dcdd327e78f32436b276d0666f62a5b733b296e8) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD("808_e14.d8", 0x0000, 0x4000, CRC(b9d36525) SHA1(53291c4911d7e1a5110539e4c57a11d0d530dc6f) ) /* Title screen graphics & characters */

	ROM_REGION16_LE( 0x200000, "gfx2", 0 )	// gfx data used at runtime
	ROM_LOAD16_WORD("808d17.p16", 0x000000, 0x80000, CRC(d1299082) SHA1(c3c07b0517e7428ccd1cdf9e15aaf16d98e7c4cd) )
	ROM_LOAD16_WORD("808d15.p13", 0x100000, 0x80000, CRC(2b22a6b6) SHA1(8e1af0627a4eac045128c4096e2cfb59c3d2f5ef) )

	ROM_REGION( 0x20000, "gfx3", ROMREGION_ERASE00 )	// tile data; mapped at 0x80000 on CPUB

	ROM_REGION( 0x20000, "konami", 0 )	// samples
	ROM_LOAD("808_d01.5a", 0x00000, 0x20000, CRC(fd4d37c0) SHA1(ef91c6e7bb57c27a9a51729fffd1bfe3e806fb61) )

	ROM_REGION( 0x20000, "upd", ROMREGION_ERASE00 ) 	// samples
ROM_END

ROM_START( cuebrickj )
	ROM_REGION( 0x40000, "maincpu", 0 ) 	// 68000 code (CPU A)
	ROM_LOAD16_BYTE( "903_e05.6n",	0x00000, 0x10000, CRC(8b556220) SHA1(dbe24133e74018c4fe9332519394cbb882c4ed5a) )
	ROM_LOAD16_BYTE( "903_e04.4n",	0x00001, 0x10000, CRC(bf9c7927) SHA1(3a594b8846f7e6074ca54f8cd5fe2ba3b64ba740) )
	ROM_LOAD16_BYTE( "903_e09.6r",	0x20000, 0x10000, CRC(2a77554d) SHA1(53eee99737333c8c4bbb9c757fd12488b6c4d3d8) )
	ROM_LOAD16_BYTE( "903_e08.4r",	0x20001, 0x10000, CRC(c0a430c1) SHA1(bef737f12e9a79781a4cd795ffc108899757901d) )

	ROM_REGION( 0x40000, "sub", 0 ) 	// 68000 code (CPU B)
	ROM_LOAD16_BYTE( "903_d07.10n",	0x00000, 0x10000, CRC(fc0edce7) SHA1(57e969a42c48a9464ec370d4605eaecb690d58ab) )
	ROM_LOAD16_BYTE( "903_d06.8n",	0x00001, 0x10000, CRC(b2cef6fe) SHA1(27d1d15f3a408e6166745cb6a159704a8cbb4584) )
	ROM_LOAD16_BYTE( "903_e13.10s",	0x20000, 0x10000, CRC(4fb5fb80) SHA1(3a59dae3846341289c31aa106684ebc45488ca45) )
	ROM_LOAD16_BYTE( "903_e12.8s",	0x20001, 0x10000, CRC(883e3097) SHA1(fe0fa1a2881a67223d741c400bb8c1a0c67946c1) )

	ROM_REGION( 0x10000, "audiocpu", 0 )	// Z80 code (sound CPU)
	ROM_LOAD( "903_d03.10a", 0x00000,  0x8000, CRC(455e855a) SHA1(cfdd54a5071862653ee94c0455301f4a7245fbd8) )

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "903_e14.d8", 0x0000, 0x4000, CRC(ddbebbd5) SHA1(df532f19a08cabb28d693e4cd445c47c9e35e5ff) ) /* Title screen graphics & characters */

	ROM_REGION( 0x200000, "gfx2", ROMREGION_ERASE00 )	// gfx data used at runtime
	// unpopulated

	ROM_REGION16_BE( 0x20000, "gfx3", 0 )	// tile data; mapped at 0x80000 on CPUB
	ROM_LOAD16_BYTE( "903_e11.10r",	0x00000, 0x10000, CRC(5c41faf8) SHA1(f9eee6a7b92d3b3aa4320747da6390310522a2cf) )
	ROM_LOAD16_BYTE( "903_e10.8r",	0x00001, 0x10000, CRC(417576d4) SHA1(e84762743e3a1117b6ef7ea0b304877e4a719f75) )

	ROM_REGION( 0x20000, "konami", ROMREGION_ERASE00 )	// samples
	// unpopulated

	ROM_REGION( 0x20000, "upd", ROMREGION_ERASE00 ) 	// samples
	// unpopulated
ROM_END

/* Driver Initialization */

static void gfx_untangle( running_machine *machine )
{
	// sprite, tile data
	int i;
	UINT16 *temp = auto_alloc_array(machine, UINT16, 0x200000/2);

	twin16_gfx_rom = (UINT16 *)memory_region(machine, "gfx2");
	memcpy( temp, twin16_gfx_rom, 0x200000 );

	for( i=0; i<0x080000; i++ )
	{
		twin16_gfx_rom[i*2+0] = temp[i+0x080000];
		twin16_gfx_rom[i*2+1] = temp[i];
	}
	auto_free( machine, temp );
}

static DRIVER_INIT( twin16 )
{
	gfx_untangle(machine);
	twin16_custom_video = 0;
}

static DRIVER_INIT( fround )
{
	gfx_untangle(machine);
	twin16_custom_video = 1;
}

static DRIVER_INIT( cuebrickj )
{
	gfx_untangle(machine);

	machine->generic.nvram.u8 = (UINT8 *)cuebrickj_nvram;
	machine->generic.nvram_size = 0x400*0x20;
}

/* Game Drivers */

GAME( 1987, devilw,   0,        devilw,		devilw,   twin16,   ROT0, "Konami", "Devil World", GAME_SUPPORTS_SAVE )
GAME( 1987, majuu,    devilw,   devilw,		devilw,   twin16,   ROT0, "Konami", "Majuu no Ohkoku", GAME_SUPPORTS_SAVE )
GAME( 1987, darkadv,  devilw,   devilw,		darkadv,  twin16,   ROT0, "Konami", "Dark Adventure", GAME_SUPPORTS_SAVE )
GAME( 1988, vulcan,   0,        twin16,		vulcan,   twin16,   ROT0, "Konami", "Vulcan Venture (New)", GAME_SUPPORTS_SAVE )
GAME( 1988, vulcana,  vulcan,   twin16,		gradius2, twin16,   ROT0, "Konami", "Vulcan Venture (Old)", GAME_SUPPORTS_SAVE )
GAME( 1988, vulcanb,  vulcan,   twin16,		gradius2, twin16,   ROT0, "Konami", "Vulcan Venture (Oldest)", GAME_SUPPORTS_SAVE )
GAME( 1988, gradius2, vulcan,   twin16,		gradius2, twin16,   ROT0, "Konami", "Gradius II - GOFER no Yabou (Japan New Ver.)", GAME_SUPPORTS_SAVE )
GAME( 1988, gradius2a,vulcan,   twin16,		vulcan,   twin16,   ROT0, "Konami", "Gradius II - GOFER no Yabou (Japan Old Ver.)", GAME_SUPPORTS_SAVE )
GAME( 1988, gradius2b,vulcan,   twin16,		vulcan,   twin16,   ROT0, "Konami", "Gradius II - GOFER no Yabou (Japan Older Ver.)", GAME_SUPPORTS_SAVE )

GAME( 1988, fround,   0,        fround,		fround,   fround,   ROT0, "Konami", "The Final Round (version M)", GAME_SUPPORTS_SAVE )
GAME( 1988, froundl,  fround,   fround,		fround,   fround,   ROT0, "Konami", "The Final Round (version L)", GAME_SUPPORTS_SAVE )
GAME( 1988, hpuncher, fround,   twin16,		fround,   twin16,   ROT0, "Konami", "Hard Puncher (Japan)", GAME_SUPPORTS_SAVE )
GAME( 1989, miaj,     mia,      miaj,		miaj,     twin16,   ROT0, "Konami", "M.I.A. - Missing in Action (Japan)", GAME_SUPPORTS_SAVE )
GAME( 1989, cuebrickj,cuebrick, cuebrickj,	cuebrickj,cuebrickj,ROT0, "Konami", "Cue Brick (Japan)", GAME_SUPPORTS_SAVE )
