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

Double Dragon     (c) 1987 Technos Japan
Double Dragon II  (c) 1988 Technos Japan

Driver by Carlos A. Lozano, Rob Rosenbrock, Phil Stroffolino, Ernesto Corvi
Toffy / Super Toffy added by David Haywood
Thanks to Bryan McPhail for spotting the Toffy program rom encryption
Toffy / Super Toffy sound hooked up by R. Belmont.

BM, 8/1/2006:

Double Dragon has a crash which sometimes occurs at the very end of the game
(right before the final animation sequence).  It occurs because of a jump look up
table:

    BAD3: LDY   #$BADD
    BAD7: JSR   [A,Y]

At the point of the crash A is 0x3e which causes a jump to 0x3401 (background tile
ram) which obviously doesn't contain proper code and causes a crash.  The jump
table has 32 entries, and only the last contains an invalid jump vector.  A is set
to 0x3e as a result of code at 0x625f - it reads from the shared spriteram (0x2049
in main cpu memory space), copies the value to 0x523 (main ram) where it is later
fetched and shifted to make 0x3e.

So..  it's not clear where the error is - the 0x1f value is actually written to
shared RAM by the main CPU - perhaps the MCU should modify it before the main CPU
reads it back?  Perhaps 0x1f should never be written at all?  If you want to trace
this further please submit a proper fix!  In the meantime I have patched the error
by making sure the invalid jump is never taken - this fixes the crash (see
ddragon_spriteram_r).



Modifications by Bryan McPhail, June-November 2003:

Correct video & interrupt timing derived from Xain schematics and confirmed on real DD board.
Corrected interrupt handling, epecially to MCU (but one semi-hack remains).
TStrike now boots but sprites don't appear (I had them working at one point, can't remember what broke them again).
Dangerous Dungeons fixed.
World version of Double Dragon added (actually same roms as the bootleg, but confirmed from real board)
Removed stereo audio flag (still on Toffy - does it have it?)

todo:

banking in Toffy / Super toffy

-- Read Me --

Super Toffy - Unico 1994

Main cpu:   MC6809EP
Sound cpu:  MC6809P
Sound:      YM2151
Clocks:     12 MHz, 3.579MHz

Graphics custom: MDE-2001

-- --

Does this make Super Toffy the sequel to a rip-off / bootleg of a
conversion kit which could be applied to a bootleg double dragon :-p?


2008-08
Dip locations verified with manual for ddragon & ddragon2

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

#include "driver.h"
#include "cpu/hd6309/hd6309.h"
#include "cpu/m6800/m6800.h"
#include "cpu/m6805/m6805.h"
#include "cpu/m6809/m6809.h"
#include "cpu/z80/z80.h"
#include "sound/2151intf.h"
#include "sound/okim6295.h"
#include "sound/msm5205.h"


#define MAIN_CLOCK		XTAL_12MHz
#define SOUND_CLOCK		XTAL_3_579545MHz
#define MCU_CLOCK			MAIN_CLOCK / 3
#define PIXEL_CLOCK		MAIN_CLOCK / 2


/* from video */
extern UINT8 *ddragon_bgvideoram,*ddragon_fgvideoram;
extern UINT16 ddragon_scrollx_hi, ddragon_scrolly_hi;
extern UINT8 *ddragon_scrollx_lo;
extern UINT8 *ddragon_scrolly_lo;
VIDEO_START( ddragon );
VIDEO_UPDATE( ddragon );
WRITE8_HANDLER( ddragon_bgvideoram_w );
WRITE8_HANDLER( ddragon_fgvideoram_w );
extern UINT8 *ddragon_spriteram;
extern UINT8 technos_video_hw;
/* end of extern code & data */

/* private globals */
static UINT8 dd_sub_cpu_busy;
static UINT8 sprite_irq, sound_irq, ym_irq;
static const device_config *snd_cpu;
static UINT32 adpcm_pos[2], adpcm_end[2];
static UINT8 adpcm_idle[2];
static int adpcm_data[2];
static UINT8 *darktowr_mcu_ports;
static UINT8 *rambase;
/* end of private globals */


/*************************************
 *
 *  Video timing
 *
 *************************************/

/*
    Based on the Solar Warrior schematics, vertical timing counts as follows:

        08,09,0A,0B,...,FC,FD,FE,FF,E8,E9,EA,EB,...,FC,FD,FE,FF,
        08,09,....

    Thus, it counts from 08 to FF, then resets to E8 and counts to FF again.
    This gives (256 - 8) + (256 - 232) = 248 + 24 = 272 total scanlines.

    VBLK is signalled starting when the counter hits F8, and continues through
    the reset to E8 and through until the next reset to 08 again.

    Since MAME's video timing is 0-based, we need to convert this.
*/

INLINE int scanline_to_vcount(int scanline)
{
	int vcount = scanline + 8;
	if (vcount < 0x100)
		return vcount;
	else
		return (vcount - 0x18) | 0x100;
}

static TIMER_DEVICE_CALLBACK( ddragon_scanline )
{
	int scanline = param;
	int screen_height = video_screen_get_height(timer->machine->primary_screen);
	int vcount_old = scanline_to_vcount((scanline == 0) ? screen_height - 1 : scanline - 1);
	int vcount = scanline_to_vcount(scanline);

	/* update to the current point */
	if (scanline > 0)
		video_screen_update_partial(timer->machine->primary_screen, scanline - 1);

	/* on the rising edge of VBLK (vcount == F8), signal an NMI */
	if (vcount == 0xf8)
		cputag_set_input_line(timer->machine, "maincpu", INPUT_LINE_NMI, ASSERT_LINE);

	/* set 1ms signal on rising edge of vcount & 8 */
	if (!(vcount_old & 8) && (vcount & 8))
		cputag_set_input_line(timer->machine, "maincpu", M6809_FIRQ_LINE, ASSERT_LINE);
}



/*************************************
 *
 *  System setup and intialization
 *
 *************************************/

static MACHINE_START( ddragon )
{
	/* configure banks */
	memory_configure_bank(machine, 1, 0, 8, memory_region(machine, "maincpu") + 0x10000, 0x4000);

	/* determine the sound CPU index */
	snd_cpu = cputag_get_cpu(machine, "soundcpu");

	/* register for save states */
	state_save_register_global(machine, dd_sub_cpu_busy);
	state_save_register_global_array(machine, adpcm_pos);
	state_save_register_global_array(machine, adpcm_end);
	state_save_register_global_array(machine, adpcm_idle);
}


static MACHINE_RESET( ddragon )
{
	dd_sub_cpu_busy = 1;
	adpcm_pos[0] = adpcm_pos[1] = 0;
	adpcm_end[0] = adpcm_end[1] = 0;
	adpcm_idle[0] = adpcm_idle[1] = 1;
	adpcm_data[0] = adpcm_data[1] = -1;
}



/*************************************
 *
 *  Bank switching
 *
 *************************************/

static WRITE8_HANDLER( ddragon_bankswitch_w )
{
	ddragon_scrollx_hi = ((data & 0x01) << 8);
	ddragon_scrolly_hi = ((data & 0x02) << 7);
	flip_screen_set(space->machine, ~data & 0x04);

	/* bit 3 unknown */

	if (data & 0x10)
		dd_sub_cpu_busy = 0;
	else if (dd_sub_cpu_busy == 0)
		cputag_set_input_line(space->machine, "sub", sprite_irq, (sprite_irq == INPUT_LINE_NMI) ? PULSE_LINE : HOLD_LINE);

	memory_set_bank(space->machine, 1, (data & 0xe0) >> 5);
}


static WRITE8_HANDLER( toffy_bankswitch_w )
{
	ddragon_scrollx_hi = ((data & 0x01) << 8);
	ddragon_scrolly_hi = ((data & 0x02) << 7);

//  flip_screen_set(space->machine, ~data & 0x04);

	/* bit 3 unknown */

	/* I don't know ... */
	memory_set_bank(space->machine, 1, (data & 0x20) >> 5);
}


static READ8_HANDLER( darktowr_mcu_bank_r )
{
	// logerror("BankRead %05x %08x\n",cpu_get_pc(space->cpu),offset);

	/* Horrible hack - the alternate TStrike set is mismatched against the MCU,
   so just hack around the protection here.  (The hacks are 'right' as I have
   the original source code & notes to this version of TStrike to examine).
   */
	if (!strcmp(space->machine->gamedrv->name, "tstrike"))
	{
		/* Static protection checks at boot-up */
		if (cpu_get_pc(space->cpu) == 0x9ace)
			return 0;
		if (cpu_get_pc(space->cpu) == 0x9ae4)
			return 0x63;

		/* Just return whatever the code is expecting */
		return rambase[0xbe1];
	}

	if (offset == 0x1401 || offset == 1)
		return darktowr_mcu_ports[0];

	logerror("Unmapped mcu bank read %04x\n",offset);
	return 0xff;
}


static WRITE8_HANDLER( darktowr_mcu_bank_w )
{
	logerror("BankWrite %05x %08x %08x\n", cpu_get_pc(space->cpu), offset, data);

	if (offset == 0x1400 || offset == 0)
	{
		darktowr_mcu_ports[1] = BITSWAP8(data,0,1,2,3,4,5,6,7);
		logerror("MCU PORT 1 -> %04x (from %04x)\n", BITSWAP8(data,0,1,2,3,4,5,6,7), data);
	}
}


static WRITE8_HANDLER( darktowr_bankswitch_w )
{
	int oldbank = memory_get_bank(space->machine, 1);
	int newbank = (data & 0xe0) >> 5;

	ddragon_scrollx_hi = ((data & 0x01) << 8);
	ddragon_scrolly_hi = ((data & 0x02) << 7);

//  flip_screen_set(space->machine, ~data & 0x04);

	/* bit 3 unknown */

	if (data & 0x10)
		dd_sub_cpu_busy = 0;
	else if (dd_sub_cpu_busy == 0)
		cputag_set_input_line(space->machine, "sub", sprite_irq, (sprite_irq == INPUT_LINE_NMI) ? PULSE_LINE : HOLD_LINE);

	memory_set_bank(space->machine, 1, newbank);
	if (newbank == 4 && oldbank != 4)
		memory_install_readwrite8_handler(space, 0x4000, 0x7fff, 0, 0, darktowr_mcu_bank_r, darktowr_mcu_bank_w);
	else if (newbank != 4 && oldbank == 4)
		memory_install_readwrite8_handler(space, 0x4000, 0x7fff, 0, 0, (read8_space_func)SMH_BANK(1), (write8_space_func)SMH_BANK(1));
}



/*************************************
 *
 *  Interrupt control
 *
 *************************************/

static WRITE8_HANDLER( ddragon_interrupt_w )
{
	switch (offset)
	{
		case 0: /* 380b - NMI ack */
			cputag_set_input_line(space->machine, "maincpu", INPUT_LINE_NMI, CLEAR_LINE);
			break;

		case 1: /* 380c - FIRQ ack */
			cputag_set_input_line(space->machine, "maincpu", M6809_FIRQ_LINE, CLEAR_LINE);
			break;

		case 2: /* 380d - IRQ ack */
			cputag_set_input_line(space->machine, "maincpu", M6809_IRQ_LINE, CLEAR_LINE);
			break;

		case 3: /* 380e - SND irq */
			soundlatch_w(space, 0, data);
			cpu_set_input_line(snd_cpu, sound_irq, (sound_irq == INPUT_LINE_NMI) ? PULSE_LINE : HOLD_LINE);
			break;

		case 4: /* 380f - ? */
			/* Not sure what this is - almost certainly related to the sprite mcu */
			break;
	}
}


static WRITE8_HANDLER( ddragon2_sub_irq_ack_w )
{
	cputag_set_input_line(space->machine, "sub", sprite_irq, CLEAR_LINE );
}


static WRITE8_HANDLER( ddragon2_sub_irq_w )
{
	cputag_set_input_line(space->machine, "maincpu", M6809_IRQ_LINE, ASSERT_LINE);
}


static void irq_handler(const device_config *device, int irq)
{
	cpu_set_input_line(snd_cpu, ym_irq , irq ? ASSERT_LINE : CLEAR_LINE );
}



/*************************************
 *
 *  MCU handlers
 *
 *************************************/

static CUSTOM_INPUT( sub_cpu_busy )
{
	return dd_sub_cpu_busy;
}


static WRITE8_HANDLER( darktowr_mcu_w )
{
	logerror("McuWrite %05x %08x %08x\n",cpu_get_pc(space->cpu),offset,data);
	darktowr_mcu_ports[offset]=data;
}


static READ8_HANDLER( ddragon_hd63701_internal_registers_r )
{
	logerror("%04x: read %d\n", cpu_get_pc(space->cpu), offset);
	return 0;
}


static WRITE8_HANDLER( ddragon_hd63701_internal_registers_w )
{
	/* I don't know why port 0x17 is used..  Doesn't seem to be a standard MCU port */
	if (offset == 0x17)
	{
		/* This is a guess, but makes sense.. The mcu definitely interrupts the main cpu.
        I don't know what bit is the assert and what is the clear though (in comparison
        it's quite obvious from the Double Dragon 2 code, below). */
		if (data & 3)
		{
			cputag_set_input_line(space->machine, "maincpu", M6809_IRQ_LINE, ASSERT_LINE);
			cputag_set_input_line(space->machine, "sub", sprite_irq, CLEAR_LINE);
		}
	}
}



/*************************************
 *
 *  Sprite RAM hacks
 *
 *************************************/

static READ8_HANDLER( ddragon_spriteram_r )
{
	/* Double Dragon crash fix - see notes above */
	if (offset == 0x49 && cpu_get_pc(space->cpu) == 0x6261 && ddragon_spriteram[offset] == 0x1f)
		return 0x1;

	return ddragon_spriteram[offset];
}


static WRITE8_HANDLER( ddragon_spriteram_w )
{
	if (space->cpu == cputag_get_cpu(space->machine, "sub") && offset == 0)
		dd_sub_cpu_busy = 1;

	ddragon_spriteram[offset] = data;
}



/*************************************
 *
 *  ADPCM sound
 *
 *************************************/

static WRITE8_HANDLER( dd_adpcm_w )
{
	const device_config *adpcm = devtag_get_device(space->machine, (offset & 1) ? "adpcm2" : "adpcm1");
	int chip = (strcmp(adpcm->tag, "adpcm1") == 0) ? 0 : 1;

	switch (offset/2)
	{
		case 3:
			adpcm_idle[chip] = 1;
			msm5205_reset_w(adpcm,1);
			break;

		case 2:
			adpcm_pos[chip] = (data & 0x7f) * 0x200;
			break;

		case 1:
			adpcm_end[chip] = (data & 0x7f) * 0x200;
			break;

		case 0:
			adpcm_idle[chip] = 0;
			msm5205_reset_w(adpcm,0);
			break;
	}
}


static void dd_adpcm_int(const device_config *device)
{
	int chip = (strcmp(device->tag, "adpcm1") == 0) ? 0 : 1;
	if (adpcm_pos[chip] >= adpcm_end[chip] || adpcm_pos[chip] >= 0x10000)
	{
		adpcm_idle[chip] = 1;
		msm5205_reset_w(device,1);
	}
	else if (adpcm_data[chip] != -1)
	{
		msm5205_data_w(device, adpcm_data[chip] & 0x0f);
		adpcm_data[chip] = -1;
	}
	else
	{
		UINT8 *ROM = memory_region(device->machine, "adpcm") + 0x10000 * chip;

		adpcm_data[chip] = ROM[adpcm_pos[chip]++];
		msm5205_data_w(device,adpcm_data[chip] >> 4);
	}
}


static READ8_HANDLER( dd_adpcm_status_r )
{
	return adpcm_idle[0] + (adpcm_idle[1] << 1);
}



/*************************************
 *
 *  Main CPU memory maps
 *
 *************************************/

static ADDRESS_MAP_START( ddragon_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_RAM AM_BASE(&rambase)
	AM_RANGE(0x1000, 0x11ff) AM_RAM_WRITE(paletteram_xxxxBBBBGGGGRRRR_split1_w) AM_BASE(&paletteram)
	AM_RANGE(0x1200, 0x13ff) AM_RAM_WRITE(paletteram_xxxxBBBBGGGGRRRR_split2_w) AM_BASE(&paletteram_2)
	AM_RANGE(0x1400, 0x17ff) AM_RAM
	AM_RANGE(0x1800, 0x1fff) AM_RAM_WRITE(ddragon_fgvideoram_w) AM_BASE(&ddragon_fgvideoram)
	AM_RANGE(0x2000, 0x2fff) AM_READWRITE(ddragon_spriteram_r, ddragon_spriteram_w) AM_BASE(&ddragon_spriteram)
	AM_RANGE(0x3000, 0x37ff) AM_RAM_WRITE(ddragon_bgvideoram_w) AM_BASE(&ddragon_bgvideoram)
	AM_RANGE(0x3800, 0x3800) AM_READ_PORT("P1")
	AM_RANGE(0x3801, 0x3801) AM_READ_PORT("P2")
	AM_RANGE(0x3802, 0x3802) AM_READ_PORT("EXTRA")
	AM_RANGE(0x3803, 0x3803) AM_READ_PORT("DSW0")
	AM_RANGE(0x3804, 0x3804) AM_READ_PORT("DSW1")
	AM_RANGE(0x3808, 0x3808) AM_WRITE(ddragon_bankswitch_w)
	AM_RANGE(0x3809, 0x3809) AM_WRITE(SMH_RAM) AM_BASE(&ddragon_scrollx_lo)
	AM_RANGE(0x380a, 0x380a) AM_WRITE(SMH_RAM) AM_BASE(&ddragon_scrolly_lo)
	AM_RANGE(0x380b, 0x380f) AM_WRITE(ddragon_interrupt_w)
	AM_RANGE(0x4000, 0x7fff) AM_ROMBANK(1)
	AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( dd2_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x17ff) AM_RAM
	AM_RANGE(0x1800, 0x1fff) AM_RAM_WRITE(ddragon_fgvideoram_w) AM_BASE(&ddragon_fgvideoram)
	AM_RANGE(0x2000, 0x2fff) AM_READWRITE(ddragon_spriteram_r, ddragon_spriteram_w) AM_BASE(&ddragon_spriteram)
	AM_RANGE(0x3000, 0x37ff) AM_RAM_WRITE(ddragon_bgvideoram_w) AM_BASE(&ddragon_bgvideoram)
	AM_RANGE(0x3800, 0x3800) AM_READ_PORT("P1")
	AM_RANGE(0x3801, 0x3801) AM_READ_PORT("P2")
	AM_RANGE(0x3802, 0x3802) AM_READ_PORT("EXTRA")
	AM_RANGE(0x3803, 0x3803) AM_READ_PORT("DSW0")
	AM_RANGE(0x3804, 0x3804) AM_READ_PORT("DSW1")
	AM_RANGE(0x3808, 0x3808) AM_WRITE(ddragon_bankswitch_w)
	AM_RANGE(0x3809, 0x3809) AM_WRITE(SMH_RAM) AM_BASE(&ddragon_scrollx_lo)
	AM_RANGE(0x380a, 0x380a) AM_WRITE(SMH_RAM) AM_BASE(&ddragon_scrolly_lo)
	AM_RANGE(0x380b, 0x380f) AM_WRITE(ddragon_interrupt_w)
	AM_RANGE(0x3c00, 0x3dff) AM_RAM_WRITE(paletteram_xxxxBBBBGGGGRRRR_split1_w) AM_BASE(&paletteram)
	AM_RANGE(0x3e00, 0x3fff) AM_RAM_WRITE(paletteram_xxxxBBBBGGGGRRRR_split2_w) AM_BASE(&paletteram_2)
	AM_RANGE(0x4000, 0x7fff) AM_ROMBANK(1)
	AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END



/*************************************
 *
 *  Sub CPU memory maps
 *
 *************************************/

static ADDRESS_MAP_START( sub_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x001f) AM_READWRITE(ddragon_hd63701_internal_registers_r, ddragon_hd63701_internal_registers_w)
	AM_RANGE(0x001f, 0x0fff) AM_RAM
	AM_RANGE(0x8000, 0x8fff) AM_READWRITE(ddragon_spriteram_r, ddragon_spriteram_w)
	AM_RANGE(0xc000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( ddragnba_sub_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_RAM
	AM_RANGE(0x8000, 0x8fff) AM_READWRITE(ddragon_spriteram_r, ddragon_spriteram_w)
	AM_RANGE(0xc000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( dd2_sub_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xbfff) AM_ROM
	AM_RANGE(0xc000, 0xc3ff) AM_READWRITE(ddragon_spriteram_r, ddragon_spriteram_w)
	AM_RANGE(0xd000, 0xd000) AM_WRITE(ddragon2_sub_irq_ack_w)
	AM_RANGE(0xe000, 0xe000) AM_WRITE(ddragon2_sub_irq_w)
ADDRESS_MAP_END

/* might not be 100% accurate, check bits written */
static WRITE8_HANDLER( ddragnba_port_w )
{
	cputag_set_input_line(space->machine, "maincpu", M6809_IRQ_LINE, ASSERT_LINE);
	cputag_set_input_line(space->machine, "sub", sprite_irq, CLEAR_LINE );
}

static ADDRESS_MAP_START( ddragnba_sub_portmap, ADDRESS_SPACE_IO, 8 )
	AM_RANGE(0x0000, 0xffff) AM_WRITE(ddragnba_port_w)
ADDRESS_MAP_END



/*************************************
 *
 *  Sound CPU memory maps
 *
 *************************************/

static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_RAM
	AM_RANGE(0x1000, 0x1000) AM_READ(soundlatch_r)
	AM_RANGE(0x1800, 0x1800) AM_READ(dd_adpcm_status_r)
	AM_RANGE(0x2800, 0x2801) AM_DEVREADWRITE("fm", ym2151_r, ym2151_w)
	AM_RANGE(0x3800, 0x3807) AM_WRITE(dd_adpcm_w)
	AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( dd2_sound_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0x8000, 0x87ff) AM_RAM
	AM_RANGE(0x8800, 0x8801) AM_DEVREADWRITE("fm", ym2151_r, ym2151_w)
	AM_RANGE(0x9800, 0x9800) AM_DEVREADWRITE("oki", okim6295_r, okim6295_w)
	AM_RANGE(0xA000, 0xA000) AM_READ(soundlatch_r)
ADDRESS_MAP_END



/*************************************
 *
 *  MCU memory maps
 *
 *************************************/

static ADDRESS_MAP_START( mcu_map, ADDRESS_SPACE_PROGRAM, 8 )
	ADDRESS_MAP_GLOBAL_MASK(0x7ff)
	AM_RANGE(0x0000, 0x0007) AM_RAM_WRITE(darktowr_mcu_w) AM_BASE(&darktowr_mcu_ports)
	AM_RANGE(0x0008, 0x007f) AM_RAM
	AM_RANGE(0x0080, 0x07ff) AM_ROM
ADDRESS_MAP_END



/*************************************
 *
 *  Input ports
 *
 *************************************/

static INPUT_PORTS_START( ddragon )
	PORT_START("P1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )

	PORT_START("P2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )

	PORT_START("DSW0")
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:1,2,3")
	PORT_DIPSETTING(    0x00, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_5C ) )
	PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:4,5,6")
	PORT_DIPSETTING(    0x00, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x38, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x28, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x20, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x18, DEF_STR( 1C_5C ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:7")
	PORT_DIPSETTING(    0x40, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:8")
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW1")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(    0x01, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x03, DEF_STR( Medium ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:3")
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x04, DEF_STR( On ) )
	PORT_DIPUNUSED_DIPLOC( 0x08, IP_ACTIVE_LOW, "SW2:4" )
	PORT_DIPNAME( 0x30, 0x30, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:5,6")
	PORT_DIPSETTING(    0x10, "20k" )
	PORT_DIPSETTING(    0x00, "40k" )
	PORT_DIPSETTING(    0x30, "30k and every 60k" )
	PORT_DIPSETTING(    0x20, "40k and every 80k" )
	PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:7,8")
	PORT_DIPSETTING(    0xc0, "2" )
	PORT_DIPSETTING(    0x80, "3" )
	PORT_DIPSETTING(    0x40, "4" )
	PORT_DIPSETTING(    0x00, "Infinite (Cheat)")

	PORT_START("EXTRA")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_VBLANK )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(sub_cpu_busy, NULL)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END


static INPUT_PORTS_START( ddragon2 )
	PORT_INCLUDE(ddragon)

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x08, 0x08, "Hurricane Kick" ) PORT_DIPLOCATION("SW2:4")
	PORT_DIPSETTING(    0x00, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Normal ) )
	PORT_DIPNAME( 0x30, 0x30, "Timer" ) PORT_DIPLOCATION("SW2:5,6")
	PORT_DIPSETTING(    0x00, "60" )
	PORT_DIPSETTING(    0x10, "65" )
	PORT_DIPSETTING(    0x30, "70" )
	PORT_DIPSETTING(    0x20, "80" )
	PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:7,8")
	PORT_DIPSETTING(    0xc0, "1" )
	PORT_DIPSETTING(    0x80, "2" )
	PORT_DIPSETTING(    0x40, "3" )
	PORT_DIPSETTING(    0x00, "4" )
INPUT_PORTS_END


static INPUT_PORTS_START( tstrike )
	PORT_INCLUDE(ddragon)

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x30, 0x30, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x30, "1" )
	PORT_DIPSETTING(    0x20, "2" )
	PORT_DIPSETTING(    0x10, "3" )
	PORT_DIPSETTING(    0x00, "4" )
	PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0xc0, "100k and 200k" )
	PORT_DIPSETTING(    0x80, "200k and 300k" )
	PORT_DIPSETTING(    0x40, "300k and 400k" )
	PORT_DIPSETTING(    0x00, "400k and 500k" )
INPUT_PORTS_END


static INPUT_PORTS_START( ddungeon )
	PORT_INCLUDE(ddragon)

	PORT_MODIFY("DSW0")
	PORT_DIPNAME( 0x0f, 0x00, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 4C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0x0f, DEF_STR( 4C_4C ) )
	PORT_DIPSETTING(    0x0a, DEF_STR( 3C_3C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 2C_2C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0e, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x09, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 2C_4C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_4C ) )
	PORT_DIPNAME( 0xf0, 0x00, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x20, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x70, DEF_STR( 4C_2C ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x60, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0xb0, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0xf0, DEF_STR( 4C_4C ) )
	PORT_DIPSETTING(    0xa0, DEF_STR( 3C_3C ) )
	PORT_DIPSETTING(    0x50, DEF_STR( 2C_2C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0xe0, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x90, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0xd0, DEF_STR( 2C_4C ) )
	PORT_DIPSETTING(    0x40, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( 1C_4C ) )

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "1" )
	PORT_DIPSETTING(    0x01, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x03, "4" )
	PORT_DIPUNUSED( 0x04, IP_ACTIVE_LOW )
	PORT_DIPUNUSED( 0x08, IP_ACTIVE_LOW )
	PORT_DIPNAME( 0xf0, 0x90, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0xf0, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x90, DEF_STR( Medium ) )
	PORT_DIPSETTING(    0x70, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
INPUT_PORTS_END


static INPUT_PORTS_START( darktowr )
	PORT_INCLUDE(ddungeon)

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	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( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
INPUT_PORTS_END


static INPUT_PORTS_START( toffy )
	PORT_INCLUDE(ddragon)

	PORT_MODIFY("DSW0")
	PORT_DIPNAME( 0x0f, 0x00, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 4C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 2C_2C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 4C_5C ) )
	PORT_DIPSETTING(    0x0f, "4 Coin/6 Credits" )
	PORT_DIPSETTING(    0x0a, "3 Coin/5 Credits" )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x0e, "3 Coin/6 Credits" )
	PORT_DIPSETTING(    0x09, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 2C_6C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_6C ) )
	PORT_DIPNAME( 0xf0, 0x00, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x20, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x70, DEF_STR( 4C_2C ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x60, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x50, DEF_STR( 2C_2C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0xb0, DEF_STR( 4C_5C ) )
	PORT_DIPSETTING(    0xf0, "4 Coin/6 Credits" )
	PORT_DIPSETTING(    0xa0, "3 Coin/5 Credits" )
	PORT_DIPSETTING(    0x40, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0xe0, "3 Coin/6 Credits" )
	PORT_DIPSETTING(    0x90, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0xd0, DEF_STR( 2C_6C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( 1C_6C ) )

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "2" )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x02, "4" )
	PORT_DIPSETTING(    0x03, "5" )
	PORT_DIPUNUSED( 0x04, IP_ACTIVE_HIGH )
	PORT_DIPNAME( 0x18, 0x08, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x10, "30k, 50k and 100k" )
	PORT_DIPSETTING(    0x08, "50k and 100k" )
	PORT_DIPSETTING(    0x18, "100k and 200k" )
	PORT_DIPSETTING(    0x00, DEF_STR( None ) )
	PORT_DIPUNUSED( 0x20, IP_ACTIVE_HIGH )
	PORT_DIPNAME( 0xc0, 0x80, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
INPUT_PORTS_END



/*************************************
 *
 *  Graphics layouts
 *
 *************************************/


static const gfx_layout char_layout =
{
	8,8,
	RGN_FRAC(1,1),
	4,
	{ 0, 2, 4, 6 },
	{ 1, 0, 8*8+1, 8*8+0, 16*8+1, 16*8+0, 24*8+1, 24*8+0 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	32*8
};

static const gfx_layout tile_layout =
{
	16,16,
	RGN_FRAC(1,2),
	4,
	{ RGN_FRAC(1,2)+0, RGN_FRAC(1,2)+4, 0, 4 },
	{ 3, 2, 1, 0, 16*8+3, 16*8+2, 16*8+1, 16*8+0,
		  32*8+3, 32*8+2, 32*8+1, 32*8+0, 48*8+3, 48*8+2, 48*8+1, 48*8+0 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
		  8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	64*8
};


static GFXDECODE_START( ddragon )
	GFXDECODE_ENTRY( "gfx1", 0, char_layout,   0, 8 )	/* colors   0-127 */
	GFXDECODE_ENTRY( "gfx2", 0, tile_layout, 128, 8 )	/* colors 128-255 */
	GFXDECODE_ENTRY( "gfx3", 0, tile_layout, 256, 8 )	/* colors 256-383 */
GFXDECODE_END



/*************************************
 *
 *  Sound definitions
 *
 *************************************/

static const ym2151_interface ym2151_config =
{
	irq_handler
};

static const msm5205_interface msm5205_config =
{
	dd_adpcm_int,	/* interrupt function */
	MSM5205_S48_4B	/* 8kHz */
};



/*************************************
 *
 *  Machine drivers
 *
 *************************************/

static MACHINE_DRIVER_START( ddragon )

	/* basic machine hardware */
 	MDRV_CPU_ADD("maincpu", HD6309, MAIN_CLOCK)		/* 12 MHz / 4 internally */
	MDRV_CPU_PROGRAM_MAP(ddragon_map,0)
	MDRV_TIMER_ADD_SCANLINE("scantimer", ddragon_scanline, "screen", 0, 1)

	MDRV_CPU_ADD("sub", HD63701, MAIN_CLOCK / 2)	/* 6 MHz / 4 internally */
	MDRV_CPU_PROGRAM_MAP(sub_map,0)

 	MDRV_CPU_ADD("soundcpu", M6809, MAIN_CLOCK / 8)	/* 1.5 MHz */
	MDRV_CPU_PROGRAM_MAP(sound_map,0)

	MDRV_QUANTUM_TIME(HZ(60000))	/* heavy interleaving to sync up sprite<->main cpu's */

	MDRV_MACHINE_START(ddragon)
	MDRV_MACHINE_RESET(ddragon)

	/* video hardware */
	MDRV_GFXDECODE(ddragon)
	MDRV_PALETTE_LENGTH(384)

	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, 384, 0, 256, 272, 0, 240)

	MDRV_VIDEO_START(ddragon)
	MDRV_VIDEO_UPDATE(ddragon)

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

	MDRV_SOUND_ADD("fm", YM2151, SOUND_CLOCK)
	MDRV_SOUND_CONFIG(ym2151_config)
	MDRV_SOUND_ROUTE(0, "mono", 0.60)
	MDRV_SOUND_ROUTE(1, "mono", 0.60)

	MDRV_SOUND_ADD("adpcm1", MSM5205, MAIN_CLOCK/32)
	MDRV_SOUND_CONFIG(msm5205_config)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

	MDRV_SOUND_ADD("adpcm2", MSM5205, MAIN_CLOCK/32)
	MDRV_SOUND_CONFIG(msm5205_config)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ddragonb )
	MDRV_IMPORT_FROM(ddragon)

	/* basic machine hardware */
	MDRV_CPU_REPLACE("sub", M6809, MAIN_CLOCK / 8)	/* 1.5Mhz */
	MDRV_CPU_PROGRAM_MAP(sub_map,0)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ddragnba )
	MDRV_IMPORT_FROM(ddragon)

	/* basic machine hardware */
 	MDRV_CPU_REPLACE("sub", M6803, MAIN_CLOCK / 2)	/* 6Mhz / 4 internally */
	MDRV_CPU_PROGRAM_MAP(ddragnba_sub_map,0)
	MDRV_CPU_IO_MAP(ddragnba_sub_portmap,0)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ddgn6809 )

	/* basic machine hardware */
 	MDRV_CPU_ADD("maincpu", M6809, MAIN_CLOCK / 8)	/* 1.5 MHz */
	MDRV_CPU_PROGRAM_MAP(ddragon_map,0)
	MDRV_TIMER_ADD_SCANLINE("scantimer", ddragon_scanline, "screen", 0, 1)

	MDRV_CPU_ADD("sub", M6809, MAIN_CLOCK / 8)	/* 1.5 Mhz */
	MDRV_CPU_PROGRAM_MAP(sub_map,0)

 	MDRV_CPU_ADD("soundcpu", M6809, MAIN_CLOCK / 8)	/* 1.5 MHz */
	MDRV_CPU_PROGRAM_MAP(sound_map,0)

	MDRV_QUANTUM_TIME(HZ(60000)) /* heavy interleaving to sync up sprite<->main cpu's */

	MDRV_MACHINE_START(ddragon)
	MDRV_MACHINE_RESET(ddragon)

	/* video hardware */
	MDRV_GFXDECODE(ddragon)
	MDRV_PALETTE_LENGTH(384)

	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, 384, 0, 256, 272, 0, 240)

	MDRV_VIDEO_START(ddragon)
	MDRV_VIDEO_UPDATE(ddragon)

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

	MDRV_SOUND_ADD("fm", YM2151, SOUND_CLOCK)
	MDRV_SOUND_CONFIG(ym2151_config)
	MDRV_SOUND_ROUTE(0, "mono", 0.60)
	MDRV_SOUND_ROUTE(1, "mono", 0.60)

	MDRV_SOUND_ADD("adpcm1", MSM5205, MAIN_CLOCK/32)
	MDRV_SOUND_CONFIG(msm5205_config)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

	MDRV_SOUND_ADD("adpcm2", MSM5205, MAIN_CLOCK/32)
	MDRV_SOUND_CONFIG(msm5205_config)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ddragon2 )

	/* basic machine hardware */
 	MDRV_CPU_ADD("maincpu", HD6309, MAIN_CLOCK)		/* 12 MHz / 4 internally */
	MDRV_CPU_PROGRAM_MAP(dd2_map,0)
	MDRV_TIMER_ADD_SCANLINE("scantimer", ddragon_scanline, "screen", 0, 1)

	MDRV_CPU_ADD("sub", Z80, MAIN_CLOCK / 3)		/* 4 MHz */
	MDRV_CPU_PROGRAM_MAP(dd2_sub_map,0)

	MDRV_CPU_ADD("soundcpu", Z80, 3579545)
	MDRV_CPU_PROGRAM_MAP(dd2_sound_map,0)

	MDRV_QUANTUM_TIME(HZ(60000)) /* heavy interleaving to sync up sprite<->main cpu's */

	MDRV_MACHINE_START(ddragon)
	MDRV_MACHINE_RESET(ddragon)

	/* video hardware */
	MDRV_GFXDECODE(ddragon)
	MDRV_PALETTE_LENGTH(384)

	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, 384, 0, 256, 272, 0, 240)

	MDRV_VIDEO_START(ddragon)
	MDRV_VIDEO_UPDATE(ddragon)

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

	MDRV_SOUND_ADD("fm", YM2151, SOUND_CLOCK)
	MDRV_SOUND_CONFIG(ym2151_config)
	MDRV_SOUND_ROUTE(0, "mono", 0.60)
	MDRV_SOUND_ROUTE(1, "mono", 0.60)

	MDRV_SOUND_ADD("oki", OKIM6295, 1056000)
	MDRV_SOUND_CONFIG(okim6295_interface_pin7high) // clock frequency & pin 7 not verified
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.20)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( darktowr )
	MDRV_IMPORT_FROM(ddragon)

	/* basic machine hardware */
	MDRV_CPU_ADD("mcu", M68705,XTAL_4MHz)
	MDRV_CPU_PROGRAM_MAP(mcu_map,0)

	/* video hardware */
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( toffy )
	MDRV_IMPORT_FROM(ddragon)

	/* basic machine hardware */
	MDRV_CPU_REMOVE("sub")

	/* sound hardware */
	MDRV_SOUND_REMOVE("adpcm1")
	MDRV_SOUND_REMOVE("adpcm2")
MACHINE_DRIVER_END



/*************************************
 *
 *  ROM definitions
 *
 *************************************/

ROM_START( ddragon )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "21j-1-5.26",   0x08000, 0x08000, CRC(42045dfd) SHA1(0983705ea3bb87c4c239692f400e02f15c243479) )
	ROM_LOAD( "21j-2-3.25",   0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21j-3.24",     0x18000, 0x08000, CRC(3bdea613) SHA1(d9038c80646a6ce3ea61da222873237b0383680e) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21j-4-1.23",   0x20000, 0x08000, CRC(728f87b9) SHA1(d7442be24d41bb9fc021587ef44ae5b830e4503d) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragonw )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "21j-1.26",     0x08000, 0x08000, CRC(ae714964) SHA1(072522b97ca4edd099c6b48d7634354dc7088c53) )
	ROM_LOAD( "21j-2-3.25",   0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-3.24",     0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21j-4.23",     0x20000, 0x08000, CRC(6c9f46fa) SHA1(df251a4aea69b2328f7a543bf085b9c35933e2c1) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragnw1 )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "e1-1.26",       0x08000, 0x08000, CRC(4b951643) SHA1(efb1f9ef2e46597d76123c9770854c1d83639eb2) )
	ROM_LOAD( "21a-2-4.25",    0x10000, 0x08000, CRC(5cd67657) SHA1(96bc7a5354a76524bd43a4d7eb8b0053a89e39c4) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-3.24",      0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "e4-1.23",       0x20000, 0x08000, CRC(b1e26935) SHA1(dfff666fd5e9dc4dfb2a1d891eced88730cbaf30) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) ) /* Labeled as 21JM-0 */

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragonu )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "21a-1-5.26",   0x08000, 0x08000, CRC(e24a6e11) SHA1(9dd97dd712d5c896f91fd80df58be9b8a2b198ee) )
	ROM_LOAD( "21j-2-3.25",   0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-3.24",     0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-4.23",     0x20000, 0x08000, CRC(6ea16072) SHA1(0b3b84a0d54f7a3aba411586009babbfee653f9a) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragoua )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "21a-1",     0x08000, 0x08000, CRC(1d625008) SHA1(84cc19a55e7c91fca1943d9624d93e0347ed4150) )
	ROM_LOAD( "21a-2_4",   0x10000, 0x08000, CRC(5cd67657) SHA1(96bc7a5354a76524bd43a4d7eb8b0053a89e39c4) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-3",     0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-4_2",   0x20000, 0x08000, CRC(9b019598) SHA1(59f3aa15389f53c4646d21a39634cb1502e66ff6) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragonb ) /* Same program roms as the World set */
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "21j-1.26",     0x08000, 0x08000, CRC(ae714964) SHA1(072522b97ca4edd099c6b48d7634354dc7088c53) )
	ROM_LOAD( "21j-2-3.25",   0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21a-3.24",     0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "21j-4.23",     0x20000, 0x08000, CRC(6c9f46fa) SHA1(df251a4aea69b2328f7a543bf085b9c35933e2c1) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "ic38",         0x0c000, 0x04000, CRC(6a6a0325) SHA1(98a940a9f23ce9154ff94f7f2ce29efe9a92f71b) ) /* HD6903 instead of HD63701 */

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-5",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragnba )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "5.bin",     0x08000, 0x08000, CRC(ae714964) SHA1(072522b97ca4edd099c6b48d7634354dc7088c53) )
	ROM_LOAD( "4.bin",     0x10000, 0x08000, CRC(48045762) SHA1(ca39eea71ca76627a98210ce9cc61457a58f16b9) ) /* banked at 0x4000-0x8000 */
	ROM_CONTINUE(0x20000,0x8000) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "3.bin",     0x18000, 0x08000, CRC(dbf24897) SHA1(1504faaf07c541330cd43b72dc6846911dfd85a3) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "2_32.bin",         0x0c000, 0x04000, CRC(67875473) SHA1(66405cb22d41d353335f037ce5aee69e4c6f05c4) ) /* 6803 instead of HD63701 */

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "6.bin",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "1.bin",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-a",        0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "21j-c",        0x20000, 0x10000, CRC(bb0bc76f) SHA1(37b2225e0593335f636c1e5fded9b21fdeab2f5a) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "21j-e",        0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "21j-g",        0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "21j-8",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "21j-i",        0x20000, 0x10000, CRC(5effb0a0) SHA1(1f21acb15dad824e831ed9a42b3fde096bb31141) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "8.bin",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "7.bin",        0x10000, 0x10000, CRC(f9311f72) SHA1(aa554ef020e04dc896e5495bcddc64e489d0ffff) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( ddragob2 )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "4.bin",        0x08000, 0x08000, CRC(668dfa19) SHA1(9b2ff1b66eeba0989e4ed850b7df1f5719ba5572) )
	ROM_LOAD( "5.bin",        0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "6.bin",        0x18000, 0x08000, CRC(3bdea613) SHA1(d9038c80646a6ce3ea61da222873237b0383680e) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "7.bin",        0x20000, 0x08000, CRC(728f87b9) SHA1(d7442be24d41bb9fc021587ef44ae5b830e4503d) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "3.bin",        0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "8.bin",        0x00000, 0x08000, CRC(7a8b8db4) SHA1(8368182234f9d4d763d4714fd7567a9e31b7ebeb) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "11.bin",       0x00000, 0x10000, CRC(574face3) SHA1(481fe574cb79d0159a65ff7486cbc945d50538c5) )	/* sprites */
	ROM_LOAD( "12.bin",       0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) )
	ROM_LOAD( "13.bin",       0x20000, 0x10000, CRC(c8b91e17) SHA1(0ce6f6ef68ecc7309a2923f7e756d5e2bf5c7a4a) )
	ROM_LOAD( "14.bin",       0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) )
	ROM_LOAD( "15.bin",       0x40000, 0x10000, CRC(a0a0c261) SHA1(25c534d82bd237386d447d72feee8d9541a5ded4) )
	ROM_LOAD( "16.bin",       0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) )
	ROM_LOAD( "17.bin",       0x60000, 0x10000, CRC(3220a0b6) SHA1(24a16ea509e9aff82b9ddd14935d61bb71acff84) )
	ROM_LOAD( "18.bin",       0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "9.bin",        0x00000, 0x10000, CRC(7c435887) SHA1(ecb76f2148fa9773426f05aac208eb3ac02747db) )	/* tiles */
	ROM_LOAD( "10.bin",       0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) )
	ROM_LOAD( "19.bin",       0x20000, 0x10000, CRC(22d65df2) SHA1(2f286a24ea7af438b39126a4ed0c515745981416) )
	ROM_LOAD( "20.bin",       0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "1.bin",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "2.bin",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

/* this is a well known italian bootleg of Double Dragon it can be identified by the following gameplay trait
 -- The Boss of level 4 is coloured like level 1 and 5 instead of green, and is invulnerable to rocks attack.

 in terms of code the game code has been heavily modified, banking writes appear to have been removed, and
 the graphic roms are all scrambled.  The game also runs on 3x M6809 rather than the original CPUs.

 */
ROM_START( ddgn6809 )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "16.bin",   0x08000, 0x08000, CRC(f4c72690) SHA1(c70d032355acf3f7f6586b6e57a94f80e099bf1a) )
	ROM_LOAD( "17.bin",   0x10000, 0x08000, CRC(6489d637) SHA1(fd17fd870e9386a3e3bdd56c8d731c73d8c70b88) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "18.bin",   0x18000, 0x08000, CRC(154d50c4) SHA1(4ffdd29406b6c6b552344f820f83715b1c7727d1) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "19.bin",   0x20000, 0x08000, CRC(090e2baf) SHA1(29b775c59c7a4d30a33e3d10e736cd1a83baf3bb) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "20.bin",    0x8000, 0x8000, CRC(67e3b4f1) SHA1(4945d76b0694299f2f4739ebfba98da6d96fe4cb) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21.bin",      0x08000, 0x08000, CRC(4437fc51) SHA1(fffcf2bec50d0b79861904b4abc607206b7794e6) )

	/* all the gfx roms are scrambled on this set */
	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "13.bin",        0x00000, 0x08000, CRC(b5a54537) SHA1(a6157cde4f9738565008d11a4a6d8576ae3abfef) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "22.bin",        0x00000, 0x08000, CRC(fe08ef61) SHA1(50404936934dc61f3553add4d4b918529b3b5ef3) )
	ROM_LOAD( "23.bin",        0x08000, 0x08000, CRC(988bea93) SHA1(053ebb5a71dfdb68ae88ef49d8409a99f8c6926d) )
	ROM_LOAD( "24.bin",        0x10000, 0x08000, CRC(437501fc) SHA1(e7758e0fb226ae46eb398bd95f5e95c90b6adb93) )
	ROM_LOAD( "25.bin",        0x18000, 0x08000, CRC(d302f69b) SHA1(64d4d8ae38457ee6b361b5157ec0557f9a7639a8) )
	ROM_LOAD( "26.bin",        0x20000, 0x08000, CRC(8ece953e) SHA1(12a43e1ed1a99b04299941a9506228490649b181) )
	ROM_LOAD( "27.bin",        0x28000, 0x08000, CRC(15cd16cb) SHA1(ab2068ebba14da256e8f2600f34dca0e048a1de9) )
	ROM_LOAD( "28.bin",        0x30000, 0x08000, CRC(51b8a217) SHA1(60c067cd7272f856e29cdb64312535236656891a) )
	ROM_LOAD( "29.bin",        0x38000, 0x08000, CRC(e4ec2394) SHA1(43376ce2a07c1fc3053f7ac9b750e944d289105b) )
	ROM_LOAD( "1.bin",         0x40000, 0x08000, CRC(2485a71d) SHA1(3e987a2f3e9a59da5fdc7bb779a43736ca67aac7) )
	ROM_LOAD( "2.bin",         0x48000, 0x08000, CRC(6940120d) SHA1(bbe94f095ef983f54658c936f916ba6a72a84ead) )
	ROM_LOAD( "3.bin",         0x50000, 0x08000, CRC(c67aac12) SHA1(aab535507e3889bf1bdc2f4fe4828a70a350ba63) )
	ROM_LOAD( "4.bin",         0x58000, 0x08000, CRC(941dcd08) SHA1(266dee264f28affe8c3f57fe569929817ae16508) )
	ROM_LOAD( "5.bin",         0x60000, 0x08000, CRC(42d36bc3) SHA1(080cbc3ffda8ab26dc65a8e9eaf948c509d064b3) )
	ROM_LOAD( "6.bin",         0x68000, 0x08000, CRC(d5d19a8d) SHA1(c4b044dd12d6468c0ad114644f01813d4fe9a673) )
	ROM_LOAD( "7.bin",         0x70000, 0x08000, CRC(d4e350cd) SHA1(78ed2baa8c52b766f998091e7ce9e1a2941352e7) )
	ROM_LOAD( "8.bin",         0x78000, 0x08000, CRC(204fdb7d) SHA1(f75b1bc6f65e7a33927cd451267fcd7e2aa44f7e) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "9.bin",         0x00000, 0x10000, CRC(736eff0f) SHA1(ae2ec2d5c8ab1db579a08256d874426dc5d889c6) )
	ROM_LOAD( "10.bin",        0x10000, 0x10000, CRC(a670d088) SHA1(27e7b49645753dd039f104c3e0a7e6513a98710d) )
	ROM_LOAD( "11.bin",        0x20000, 0x10000, CRC(4171b70d) SHA1(dc300c9bca6481417e97ad03c973e47389f261c1) )
	ROM_LOAD( "12.bin",        0x30000, 0x10000, CRC(5f6a6d6f) SHA1(7d546a226cda81c28e7ccfb4c5daebc65072198d) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples  */
	ROM_LOAD( "14.bin",        0x00000, 0x08000, CRC(678f8657) SHA1(2652fdc6719d2c889ca87802f6e2cefae59fc2eb) )
	ROM_LOAD( "15.bin",        0x10000, 0x08000, CRC(10f21dea) SHA1(739cf649f91490384297a81a2cc9855acb58a1c0) )
ROM_END

/*
CPU

3x EF68B09EP (main)
2x YM2203C (sound)
2x OKI M5202 (sound)
2x Y3014B (sound)
2x LM324N (sound)
1x TDA2003 (sound)
1x oscillator 20.000
1x oscillator 24.575 (24.000 on another PCB)
1x orange resonator CSB445E (CSB500E on another PCB)

ROMs

12x 27C512 (1-12)
9x 27256 (13-21)
2x AM27S21PC
1x N82S123N
1x AM27S29PC
1x PAL16r4
1x PAL16R6

Note

1x JAMMA edge connector
1x trimmer (volume)
2x 8x2 switches dip

*/

ROM_START( dd6809a )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "20.7f",   0x08000, 0x08000, CRC(c804819f) SHA1(cc570a90b7bef1c6263f5e1fd96ed377c508fe2b) )
	ROM_LOAD( "19.7g",   0x10000, 0x08000, CRC(de08db4d) SHA1(e63b90c3bb3af01d2855de9a996b51068bed7b52) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "18.7h",   0x18000, 0x08000, CRC(154d50c4) SHA1(4ffdd29406b6c6b552344f820f83715b1c7727d1) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "17.7j",   0x20000, 0x08000, CRC(4052f37a) SHA1(9444a30ce32a2d35c601324d79c0ba602be4f288) ) /* banked at 0x4000-0x8000 */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "21.7d",   0x08000, 0x8000, CRC(4437fc51) SHA1(fffcf2bec50d0b79861904b4abc607206b7794e6) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "16.7n",   0x08000, 0x08000, CRC(f4c72690) SHA1(c70d032355acf3f7f6586b6e57a94f80e099bf1a) )

	/* all the gfx roms are scrambled on this set */
	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "13.5f",   0x00000, 0x08000, CRC(b5a54537) SHA1(a6157cde4f9738565008d11a4a6d8576ae3abfef) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "1.1t",         0x00000, 0x10000, CRC(5e810a6d) SHA1(5eba3e982b271bc284ca333429cd0b3759c9c8d1) )
	ROM_LOAD( "1.1r",         0x10000, 0x10000, CRC(7300b785) SHA1(6d3b72bd7208e2bd790517a753c9d5192c88d20f) )
	ROM_LOAD( "3.1q",         0x20000, 0x10000, CRC(19405de8) SHA1(ac1aa40478b92af5ccdde89812be78b7c9f7d20d) )
	ROM_LOAD( "4.1p",         0x30000, 0x10000, CRC(4b10defd) SHA1(fb43eba7c8a7f77f0fdd6253d51b40b0e64598f5) )
	ROM_LOAD( "5.1n",         0x40000, 0x10000, CRC(5b1bb493) SHA1(dd947d7d381af5952acece4b2cefc9fc4847ec68) )
	ROM_LOAD( "6.1m",         0x50000, 0x10000, CRC(e8a2d2e7) SHA1(abc871e57a5280728b9f90625fb91011b848a4d8) )
	ROM_LOAD( "7.1l",         0x60000, 0x10000, CRC(8010fcca) SHA1(9401c41088776beea91c32aaff8eb2fbe92b5e37) )
	ROM_LOAD( "8.1j",         0x70000, 0x10000, CRC(bfa4da27) SHA1(68a649aec43e18dc79b4690c1dff2e2a6fc0065a) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "9.2e",         0x00000, 0x10000, CRC(736eff0f) SHA1(ae2ec2d5c8ab1db579a08256d874426dc5d889c6) )
	ROM_LOAD( "10.2d",        0x10000, 0x10000, CRC(a670d088) SHA1(27e7b49645753dd039f104c3e0a7e6513a98710d) )
	ROM_LOAD( "11.2b",        0x20000, 0x10000, CRC(4171b70d) SHA1(dc300c9bca6481417e97ad03c973e47389f261c1) )
	ROM_LOAD( "12.2a",        0x30000, 0x10000, CRC(5f6a6d6f) SHA1(7d546a226cda81c28e7ccfb4c5daebc65072198d) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples (yes these really are smaller than the original game..)  */
	ROM_LOAD( "14.7q",        0x00000, 0x08000, CRC(678f8657) SHA1(2652fdc6719d2c889ca87802f6e2cefae59fc2eb) )
	ROM_LOAD( "15.7o",        0x10000, 0x08000, CRC(10f21dea) SHA1(739cf649f91490384297a81a2cc9855acb58a1c0) )

	ROM_REGION( 0x20000, "user1", 0 ) /* PROMs */
	ROM_LOAD( "27s21.5o",        0x00000, 0x100, CRC(673f68c3) SHA1(9381453e8f868d80b6069264509a339e20e2b6b1) )
	ROM_LOAD( "27s21.5p",        0x00000, 0x100, CRC(2dc270f2) SHA1(9f124ab2c98680bcc249218ee0de09ba49c09a84) )
	ROM_LOAD( "27s29.6g",        0x00000, 0x200, CRC(095fb461) SHA1(7fd213fd8b8bbe30334523ccf06d4606c67b472e) )
	ROM_LOAD( "82s129.4h",       0x00000, 0x100, CRC(7683cadd) SHA1(ff6fecf273c1d8812814cacc72fb71642ec32b6d) )

	ROM_REGION( 0x20000, "user2", 0 ) /* PALs */
	ROM_LOAD( "pal16r4.8g",        0x00000, 0x104, CRC(5b0263fd) SHA1(ddca425f82f5eb06b56f2ab116fb9a9b192e1097) )
	ROM_LOAD( "pal16r6.2f",        0x00000, 0x104, CRC(bd76fb53) SHA1(2d0634e8edb3289a103719466465e9777606086e) )
ROM_END


ROM_START( ddragon2 )
	ROM_REGION( 0x30000, "maincpu", 0 )
	ROM_LOAD( "26a9-04.bin",  0x08000, 0x8000, CRC(f2cfc649) SHA1(d3f1e0bae02472914a940222e4f600170a91736d) )
	ROM_LOAD( "26aa-03.bin",  0x10000, 0x8000, CRC(44dd5d4b) SHA1(427c4e419668b41545928cfc96435c010ecdc88b) )
	ROM_LOAD( "26ab-0.bin",   0x18000, 0x8000, CRC(49ddddcd) SHA1(91dc53718d04718b313f23d86e241027c89d1a03) )
	ROM_LOAD( "26ac-0e.63",   0x20000, 0x8000, CRC(57acad2c) SHA1(938e2a78af38ecd7e9e08fb10acc1940f7585f5e) )

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite CPU 64kb (Upper 16kb = 0) */
	ROM_LOAD( "26ae-0.bin",   0x00000, 0x10000, CRC(ea437867) SHA1(cd910203af0565f981b9bdef51ea6e9c33ee82d3) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* music CPU, 64kb */
	ROM_LOAD( "26ad-0.bin",   0x00000, 0x8000, CRC(75e36cd6) SHA1(f24805f4f6925b3ac508e66a6fc25c275b05f3b9) )

	ROM_REGION( 0x10000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "26a8-0e.19",   0x00000, 0x10000, CRC(4e80cd36) SHA1(dcae0709f27f32effb359f6b943f61b102749f2a) )	/* chars */

	ROM_REGION( 0xc0000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "26j0-0.bin",   0x00000, 0x20000, CRC(db309c84) SHA1(ee095e4a3bc86737539784945decb1f63da47b9b) )	/* sprites */
	ROM_LOAD( "26j1-0.bin",   0x20000, 0x20000, CRC(c3081e0c) SHA1(c4a9ae151aae21073a2c79c5ac088c72d4f3d9db) )
	ROM_LOAD( "26af-0.bin",   0x40000, 0x20000, CRC(3a615aad) SHA1(ec90a35224a177d00327de6fd1a299df38abd790) )
	ROM_LOAD( "26j2-0.bin",   0x60000, 0x20000, CRC(589564ae) SHA1(1e6e0ef623545615e8409b6d3ba586a71e2612b6) )
	ROM_LOAD( "26j3-0.bin",   0x80000, 0x20000, CRC(daf040d6) SHA1(ab0fd5482625dbe64f0f0b0baff5dcde05309b81) )
	ROM_LOAD( "26a10-0.bin",  0xa0000, 0x20000, CRC(6d16d889) SHA1(3bc62b3e7f4ddc3200a9cf8469239662da80c854) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "26j4-0.bin",   0x00000, 0x20000, CRC(a8c93e76) SHA1(54d64f052971e7fa0d21c5ce12f87b0fa2b648d6) )	/* tiles */
	ROM_LOAD( "26j5-0.bin",   0x20000, 0x20000, CRC(ee555237) SHA1(f9698f3e57f933a43e508f60667c860dee034d05) )

	ROM_REGION( 0x40000, "oki", 0 ) /* adpcm samples */
	ROM_LOAD( "26j6-0.bin",   0x00000, 0x20000, CRC(a84b2a29) SHA1(9cb529e4939c16a0a42f45dd5547c76c2f86f07b) )
	ROM_LOAD( "26j7-0.bin",   0x20000, 0x20000, CRC(bc6a48d5) SHA1(04c434f8cd42a8f82a263548183569396f9b684d) )

	ROM_REGION( 0x0200, "proms", 0 )
	ROM_LOAD( "prom.16",      0x0000, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown (same as ddragon) */
ROM_END

ROM_START( ddragn2u )
	ROM_REGION( 0x30000, "maincpu", 0 )
	ROM_LOAD( "26a9-04.bin",  0x08000, 0x8000, CRC(f2cfc649) SHA1(d3f1e0bae02472914a940222e4f600170a91736d) )
	ROM_LOAD( "26aa-03.bin",  0x10000, 0x8000, CRC(44dd5d4b) SHA1(427c4e419668b41545928cfc96435c010ecdc88b) )
	ROM_LOAD( "26ab-0.bin",   0x18000, 0x8000, CRC(49ddddcd) SHA1(91dc53718d04718b313f23d86e241027c89d1a03) )
	ROM_LOAD( "26ac-02.bin",  0x20000, 0x8000, CRC(097eaf26) SHA1(60504abd30fec44c45197cdf3832c87d05ef577d) )

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite CPU 64kb (Upper 16kb = 0) */
	ROM_LOAD( "26ae-0.bin",   0x00000, 0x10000, CRC(ea437867) SHA1(cd910203af0565f981b9bdef51ea6e9c33ee82d3) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* music CPU, 64kb */
	ROM_LOAD( "26ad-0.bin",   0x00000, 0x8000, CRC(75e36cd6) SHA1(f24805f4f6925b3ac508e66a6fc25c275b05f3b9) )

	ROM_REGION( 0x10000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "26a8-0.bin",   0x00000, 0x10000, CRC(3ad1049c) SHA1(11d9544a56f8e6a84beb307a5c8a9ff8afc55c66) )	/* chars */

	ROM_REGION( 0xc0000, "gfx2", ROMREGION_DISPOSE )
	ROM_LOAD( "26j0-0.bin",   0x00000, 0x20000, CRC(db309c84) SHA1(ee095e4a3bc86737539784945decb1f63da47b9b) )	/* sprites */
	ROM_LOAD( "26j1-0.bin",   0x20000, 0x20000, CRC(c3081e0c) SHA1(c4a9ae151aae21073a2c79c5ac088c72d4f3d9db) )
	ROM_LOAD( "26af-0.bin",   0x40000, 0x20000, CRC(3a615aad) SHA1(ec90a35224a177d00327de6fd1a299df38abd790) )
	ROM_LOAD( "26j2-0.bin",   0x60000, 0x20000, CRC(589564ae) SHA1(1e6e0ef623545615e8409b6d3ba586a71e2612b6) )
	ROM_LOAD( "26j3-0.bin",   0x80000, 0x20000, CRC(daf040d6) SHA1(ab0fd5482625dbe64f0f0b0baff5dcde05309b81) )
	ROM_LOAD( "26a10-0.bin",  0xa0000, 0x20000, CRC(6d16d889) SHA1(3bc62b3e7f4ddc3200a9cf8469239662da80c854) )

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
	ROM_LOAD( "26j4-0.bin",   0x00000, 0x20000, CRC(a8c93e76) SHA1(54d64f052971e7fa0d21c5ce12f87b0fa2b648d6) )	/* tiles */
	ROM_LOAD( "26j5-0.bin",   0x20000, 0x20000, CRC(ee555237) SHA1(f9698f3e57f933a43e508f60667c860dee034d05) )

	ROM_REGION( 0x40000, "oki", 0 ) /* adpcm samples */
	ROM_LOAD( "26j6-0.bin",   0x00000, 0x20000, CRC(a84b2a29) SHA1(9cb529e4939c16a0a42f45dd5547c76c2f86f07b) )
	ROM_LOAD( "26j7-0.bin",   0x20000, 0x20000, CRC(bc6a48d5) SHA1(04c434f8cd42a8f82a263548183569396f9b684d) )

	ROM_REGION( 0x0200, "proms", 0 )
	ROM_LOAD( "prom.16",      0x0000, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown (same as ddragon) */
ROM_END


ROM_START( tstrike )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "prog.rom",        0x08000, 0x08000, CRC(bf011a00) SHA1(09a55042a219dd37cb9e7feeab092ebfb903ddde) )
	ROM_LOAD( "tstrike.25",      0x10000, 0x08000, CRC(b6a0c2f3) SHA1(3434689ca217f5af268058ad34c277db672d389c) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "tstrike.24",      0x18000, 0x08000, CRC(363816fa) SHA1(65c1ccbb950e09230196b49dc7312a13a34f3f79) ) /* banked at 0x4000-0x8000 */
	/* IC23 is replaced with a daughterboard containing a 68705 MCU */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "tstrike.30",      0x08000, 0x08000, CRC(3f3f04a1) SHA1(45d2b4542ec783c1c4122616606be6c160f76c06) )

	ROM_REGION( 0x0800, "mcu", 0 )	/* 8k for the microcontroller */
	ROM_LOAD( "68705prt.mcu",   0x00000, 0x0800, CRC(34cbb2d3) SHA1(8e0c3b13c636012d88753d547c639b1a8af85680) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "alpha.rom",        0x00000, 0x08000, CRC(3a7c3185) SHA1(1ccaa6a1f46d66feda49fdea337b8eb32f14c7b5) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE ) 	/* sprites */
	ROM_LOAD( "tstrike.117",  0x00000, 0x10000, CRC(f7122c0d) SHA1(2b6b359585d9df966c1fc0041fb972aac9b1ab93) )
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) ) /* from ddragon (116) */
	ROM_LOAD( "tstrike.115",  0x20000, 0x10000, CRC(a13c7b62) SHA1(d929d8db7eb2b949cd3bd77238611ecc54b2e885) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) ) /* from ddragon (114) */
	ROM_LOAD( "tstrike.113",  0x40000, 0x10000, CRC(5ad60938) SHA1(a0af9b227157d87fa6d4ea88b34227a97baff20e) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) ) /* from ddragon (112) */
	ROM_LOAD( "tstrike.111",  0x60000, 0x10000, CRC(7b9c87ad) SHA1(429049f84b2084bb074e380dca63b75150e7e69f) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) ) /* from ddragon (110) */

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE ) 	/* tiles */
	ROM_LOAD( "tstrike.78",   0x00000, 0x10000, CRC(88284aec) SHA1(f07bc5f84f2b2f976c911541c8f1ff2558f569ca) )
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) ) /* from ddragon (77) */
	ROM_LOAD( "tstrike.109",  0x20000, 0x10000, CRC(8c2cd0bb) SHA1(364a708484c7750f38162d463104216bbd555b86) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) ) /* from ddragon (108) */

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "tstrike.94",        0x00000, 0x10000, CRC(8a2c09fc) SHA1(f59a43c3fa814b169a51744f9604d36ae63c190f) ) /* first+second half identical */
	ROM_LOAD( "tstrike.95",        0x10000, 0x08000, CRC(1812eecb) SHA1(9b7d526f30a86682cdf088600b25ea5a56b112ef) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END

ROM_START( tstrikea )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "tstrike.26",      0x08000, 0x08000, CRC(871b10bc) SHA1(c824775cf72c039612fda76c4a518cd89e4c8657) )
	ROM_LOAD( "tstrike.25",      0x10000, 0x08000, CRC(b6a0c2f3) SHA1(3434689ca217f5af268058ad34c277db672d389c) ) /* banked at 0x4000-0x8000 */
	ROM_LOAD( "tstrike.24",      0x18000, 0x08000, CRC(363816fa) SHA1(65c1ccbb950e09230196b49dc7312a13a34f3f79) ) /* banked at 0x4000-0x8000 */
	/* IC23 is replaced with a daughterboard containing a 68705 MCU */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "tstrike.30",      0x08000, 0x08000, CRC(3f3f04a1) SHA1(45d2b4542ec783c1c4122616606be6c160f76c06) )

	ROM_REGION( 0x0800, "mcu", 0 )	/* 8k for the microcontroller */
	ROM_LOAD( "68705prt.mcu",   0x00000, 0x0800, CRC(34cbb2d3) SHA1(8e0c3b13c636012d88753d547c639b1a8af85680) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE )
	ROM_LOAD( "tstrike.20",        0x00000, 0x08000, CRC(b6b8bfa0) SHA1(ce50f8eb1a84873ef3df621d971a6b087473d6c2) )	/* chars */

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE ) 	/* sprites */
	ROM_LOAD( "tstrike.117",  0x00000, 0x10000, CRC(f7122c0d) SHA1(2b6b359585d9df966c1fc0041fb972aac9b1ab93) )
	ROM_LOAD( "21j-b",        0x10000, 0x10000, CRC(40507a76) SHA1(74581a4b6f48100bddf20f319903af2fe36f39fa) ) /* from ddragon (116) */
	ROM_LOAD( "tstrike.115",  0x20000, 0x10000, CRC(a13c7b62) SHA1(d929d8db7eb2b949cd3bd77238611ecc54b2e885) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) ) /* from ddragon (114) */
	ROM_LOAD( "tstrike.113",  0x40000, 0x10000, CRC(5ad60938) SHA1(a0af9b227157d87fa6d4ea88b34227a97baff20e) )
	ROM_LOAD( "21j-f",        0x50000, 0x10000, CRC(6ba152f6) SHA1(a301ff809be0e1471f4ff8305b30c2fa4aa57fae) ) /* from ddragon (112) */
	ROM_LOAD( "tstrike.111",  0x60000, 0x10000, CRC(7b9c87ad) SHA1(429049f84b2084bb074e380dca63b75150e7e69f) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) ) /* from ddragon (110) */

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE ) 	/* tiles */
	ROM_LOAD( "tstrike.78",   0x00000, 0x10000, CRC(88284aec) SHA1(f07bc5f84f2b2f976c911541c8f1ff2558f569ca) )
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) ) /* from ddragon (77) */
	ROM_LOAD( "tstrike.109",  0x20000, 0x10000, CRC(8c2cd0bb) SHA1(364a708484c7750f38162d463104216bbd555b86) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) ) /* from ddragon (108) */

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "tstrike.94",        0x00000, 0x10000, CRC(8a2c09fc) SHA1(f59a43c3fa814b169a51744f9604d36ae63c190f) ) /* first+second half identical */
	ROM_LOAD( "tstrike.95",        0x10000, 0x08000, CRC(1812eecb) SHA1(9b7d526f30a86682cdf088600b25ea5a56b112ef) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */
ROM_END


ROM_START( ddungeon )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* Main CPU? */
	ROM_LOAD( "dd25.25",    0x10000, 0x8000,  CRC(922e719c) SHA1(d1c73f56913cd368158abc613d7bbab669509742) )
	ROM_LOAD( "dd26.26",    0x08000, 0x8000,  CRC(a6e7f608) SHA1(83b9301c39bfdc1e50a37f2bdc4d4f65a1111bee) )
	/* IC23 is replaced with a daughterboard containing a 68705 MCU */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",  0xc000,  0x4000,  CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "dd30.30",    0x08000, 0x08000, CRC(ef1af99a) SHA1(7ced695b81ca9efbb7b28b78013e112edac85672) )

	ROM_REGION( 0x0800, "mcu", 0 )	/* 8k for the microcontroller */
	ROM_LOAD( "dd_mcu.bin", 0x00000, 0x0800,  CRC(34cbb2d3) SHA1(8e0c3b13c636012d88753d547c639b1a8af85680) )

	ROM_REGION( 0x10000, "gfx1", 0 ) /* GFX? */
	ROM_LOAD( "dd20.20",    0x00000, 0x08000, CRC(d976b78d) SHA1(e1cd47032a0f91d812c3925d1f1267a9972bf48e) )

	ROM_REGION( 0x20000, "gfx2", 0 ) /* GFX */
	ROM_LOAD( "dd117.117",  0x00000, 0x08000, CRC(e912ca81) SHA1(8c274400170f46f84042f4f9cffba8d2fe9fbc10) )
	ROM_LOAD( "dd113.113",  0x10000, 0x08000, CRC(43264ad8) SHA1(74f031d6179390bc4fa99f4929a6886db8c2b510) )

	ROM_REGION( 0x20000, "gfx3", 0 ) /* GFX */
	ROM_LOAD( "dd78.78",    0x00000, 0x08000, CRC(3deacae9) SHA1(6663f054ed3eed50c5cacfa5d22d465dfb179964) )
	ROM_LOAD( "dd109.109",  0x10000, 0x08000, CRC(5a2f31eb) SHA1(1b85533443e148adb2a9c2c09c43cbf2c35c86bc) )

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",      0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) ) /* at IC95 */
	ROM_LOAD( "21j-7",      0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) ) /* at IC94 */

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",    0x0000,  0x0100,  CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) ) /* at IC101 */
	ROM_LOAD( "21j-l-0",    0x0100,  0x0200,  CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) ) /* at IC16 */
ROM_END

/* the only differences with this set are 2x graphic roms, and the sound program.
   this version uses the sound program from double dragon, and as this configuration has been found on at least
   4 boards it's likely that the updated sound rom in the parent set was only shipped with the 'game room'
   version of the game */
ROM_START( ddungene )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* Main CPU? */
	ROM_LOAD( "dd25.25",    0x10000, 0x8000,  CRC(922e719c) SHA1(d1c73f56913cd368158abc613d7bbab669509742) ) /* 3 on this board */
	ROM_LOAD( "dd26.26",    0x08000, 0x8000,  CRC(a6e7f608) SHA1(83b9301c39bfdc1e50a37f2bdc4d4f65a1111bee) ) /* 2 on this board */
	/* IC23 is replaced with a daughterboard containing a 68705 MCU */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",  0xc000,  0x4000,  CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) ) /* from ddragon */

	ROM_REGION( 0x0800, "mcu", 0 )	/* 8k for the microcontroller */
	ROM_LOAD( "dd_mcu.bin", 0x00000, 0x0800,  CRC(34cbb2d3) SHA1(8e0c3b13c636012d88753d547c639b1a8af85680) )

	ROM_REGION( 0x10000, "gfx1", 0 ) /* GFX? */
	ROM_LOAD( "dd6.bin",    0x00000, 0x08000, CRC(057588ca) SHA1(d4a5dd3ea8cf455b54657473d4d52ab5e838ae15) )

	ROM_REGION( 0x20000, "gfx2", 0 ) /* GFX */
	ROM_LOAD( "dd-7r.bin",  0x00000, 0x08000, CRC(50d6ab5d) SHA1(4c9cbd72d38b631ea2ca231045ef3f3e11cc7c07) )
	ROM_LOAD( "dd113.113",  0x10000, 0x08000, CRC(43264ad8) SHA1(74f031d6179390bc4fa99f4929a6886db8c2b510) ) /* 7K on this board */

	ROM_REGION( 0x20000, "gfx3", 0 ) /* GFX */
	ROM_LOAD( "dd78.78",    0x00000, 0x08000, CRC(3deacae9) SHA1(6663f054ed3eed50c5cacfa5d22d465dfb179964) ) /* 6B on this board */
	ROM_LOAD( "dd109.109",  0x10000, 0x08000, CRC(5a2f31eb) SHA1(1b85533443e148adb2a9c2c09c43cbf2c35c86bc) ) /* 7C on this board */

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",      0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) )
	ROM_LOAD( "21j-7",      0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) )

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",    0x0000,  0x0100,  CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) ) /* unknown  */
	ROM_LOAD( "21j-l-0",    0x0100,  0x0200,  CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) ) /* unknown  */
ROM_END


ROM_START( darktowr )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + bankswitched memory */
	ROM_LOAD( "dt.26",         0x08000, 0x08000, CRC(8134a472) SHA1(7d42d2ed8d09855241d98ed94bce140a314c2f66) )
	ROM_LOAD( "21j-2-3.25",    0x10000, 0x08000, CRC(5779705e) SHA1(4b8f22225d10f5414253ce0383bbebd6f720f3af) ) /* from ddragon */
	ROM_LOAD( "dt.24",         0x18000, 0x08000, CRC(523a5413) SHA1(71c04287e4f2e792c98abdeb97fe70abd0d5e918) ) /* banked at 0x4000-0x8000 */
	/* IC23 is replaced with a daughterboard containing a 68705 MCU */

	ROM_REGION( 0x10000, "sub", 0 ) /* sprite cpu */
	ROM_LOAD( "63701.bin",    0xc000, 0x4000, CRC(f5232d03) SHA1(e2a194e38633592fd6587690b3cb2669d93985c7) )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* audio cpu */
	ROM_LOAD( "21j-0-1",      0x08000, 0x08000, CRC(9efa95bb) SHA1(da997d9cc7b9e7b2c70a4b6d30db693086a6f7d8) ) /* from ddragon */

	ROM_REGION( 0x0800, "mcu", 0 )	/* 8k for the microcontroller */
	ROM_LOAD( "68705prt.mcu",   0x00000, 0x0800, CRC(34cbb2d3) SHA1(8e0c3b13c636012d88753d547c639b1a8af85680) )

	ROM_REGION( 0x08000, "gfx1", ROMREGION_DISPOSE ) /* chars */
	ROM_LOAD( "dt.20",        0x00000, 0x08000, CRC(860b0298) SHA1(087e4e6511c5bed74ffbfd077ece55a756b13253) )

	ROM_REGION( 0x80000, "gfx2", ROMREGION_DISPOSE ) /* sprites */
	ROM_LOAD( "dt.117",       0x00000, 0x10000, CRC(750dd0fa) SHA1(d95b95a54c7ed87a27edb8660810dd89efa10c9f) )
	ROM_LOAD( "dt.116",       0x10000, 0x10000, CRC(22cfa87b) SHA1(0008a41f307be96be91f491bdeaa1fa450dd0fdf) )
	ROM_LOAD( "dt.115",       0x20000, 0x10000, CRC(8a9f1c34) SHA1(1f07f424b2ab14a051f2c84b3d89fc5d35c5f20b) )
	ROM_LOAD( "21j-d",        0x30000, 0x10000, CRC(cb4f231b) SHA1(9f2270f9ceedfe51c5e9a9bbb00d6f43dbc4a3ea) ) /* from ddragon */
	ROM_LOAD( "dt.113",       0x40000, 0x10000, CRC(7b4bbf9c) SHA1(d0caa3c38e059d3ee48e3e801da36f67457ed542) )
	ROM_LOAD( "dt.112",       0x50000, 0x10000, CRC(df3709d4) SHA1(9cca44be97260e730786db8244a0d655c86537aa) )
	ROM_LOAD( "dt.111",       0x60000, 0x10000, CRC(59032154) SHA1(637372e4619472a958f4971b50a6fe0985bffc8b) )
	ROM_LOAD( "21j-h",        0x70000, 0x10000, CRC(65c7517d) SHA1(f177ba9c1c7cc75ff04d5591b9865ee364788f94) ) /* from ddragon */

	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE ) /* tiles */
	ROM_LOAD( "dt.78",        0x00000, 0x10000, CRC(72c15604) SHA1(202b46a2445eea5877e986a871bb0a6b76b88a6f) )
	ROM_LOAD( "21j-9",        0x10000, 0x10000, CRC(c6640aed) SHA1(f156c337f48dfe4f7e9caee9a72c7ea3d53e3098) ) /* from ddragon */
	ROM_LOAD( "dt.109",       0x20000, 0x10000, CRC(15bdcb62) SHA1(75382a3805dc333b196e119d28b5c3f320bd9f2a) )
	ROM_LOAD( "21j-j",        0x30000, 0x10000, CRC(5fb42e7c) SHA1(7953316712c56c6f8ca6bba127319e24b618b646) ) /* from ddragon */

	ROM_REGION( 0x20000, "adpcm", 0 ) /* adpcm samples */
	ROM_LOAD( "21j-6",        0x00000, 0x10000, CRC(34755de3) SHA1(57c06d6ce9497901072fa50a92b6ed0d2d4d6528) ) /* from ddragon */
	ROM_LOAD( "21j-7",        0x10000, 0x10000, CRC(904de6f8) SHA1(3623e5ea05fd7c455992b7ed87e605b87c3850aa) ) /* from ddragon */

	ROM_REGION( 0x0300, "proms", 0 )
	ROM_LOAD( "21j-k-0",      0x0000, 0x0100, CRC(fdb130a9) SHA1(4c4f214229b9fab2b5d69c745ec5428787b89e1f) )	/* unknown */ /* from ddragon */
	ROM_LOAD( "21j-l-0",      0x0100, 0x0200, CRC(46339529) SHA1(64f4c42a826d67b7cbaa8a23a45ebc4eb6248891) )	/* unknown */ /* from ddragon */
ROM_END


ROM_START( toffy )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* Main CPU? */
	ROM_LOAD( "2-27512.rom", 0x00000, 0x10000, CRC(244709dd) SHA1(b2db51b910f1a031b94fb50e684351f657a465dc) )
	ROM_RELOAD( 0x10000, 0x10000 )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* Sound CPU? */
	ROM_LOAD( "u142.1", 0x00000, 0x10000, CRC(541bd7f0) SHA1(3f0097f5877eae50651f94d46d7dd9127037eb6e) )

	ROM_REGION( 0x10000, "gfx1", 0 ) /* GFX? */
	ROM_LOAD( "7-27512.rom", 0x000, 0x10000, CRC(f9e8ec64) SHA1(36891cd8f28800e03fe0eac84b2484a70011eabb) )

	ROM_REGION( 0x20000, "gfx3", 0 ) /* GFX */
	/* the same as 'Dangerous Dungeons' once decrypted */
	ROM_LOAD( "4-27512.rom", 0x00000, 0x10000, CRC(94b5ef6f) SHA1(32967f6cfc6a077c31923318891ed508f83e67f6) )
	ROM_LOAD( "3-27512.rom", 0x10000, 0x10000, CRC(a7a053a3) SHA1(98625fe73a409c8d51136931a5f707a0bf75b66a) )

	ROM_REGION( 0x20000, "gfx2", 0 ) /* GFX */
	ROM_LOAD( "6-27512.rom", 0x00000, 0x10000, CRC(2ba7ca47) SHA1(ad709fc871f1f1a7d4b0fdf0f516c53fd4c8b685) )
	ROM_LOAD( "5-27512.rom", 0x10000, 0x10000, CRC(4f91eec6) SHA1(18a5f98dfba33837b73d032a6153eeb03263684b) )
ROM_END

ROM_START( stoffy )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* Main CPU? */
	ROM_LOAD( "u70.2", 0x00000, 0x10000, CRC(3c156610) SHA1(d7fdbc595bdc77c452da39da8b20774db0952e33) )
	ROM_RELOAD( 0x10000, 0x10000 )

	ROM_REGION( 0x10000, "soundcpu", 0 ) /* Sound CPU? */
	ROM_LOAD( "u142.1", 0x00000, 0x10000, CRC(541bd7f0) SHA1(3f0097f5877eae50651f94d46d7dd9127037eb6e) ) // same as 'toffy'

	ROM_REGION( 0x10000, "gfx1", 0 ) /* GFX? */
	ROM_LOAD( "u35.7", 0x00000, 0x10000, CRC(83735d25) SHA1(d82c046db0112d7d2877339652b2111f12513a4f) )

	ROM_REGION( 0x20000, "gfx3", 0 ) /* GFX */
	ROM_LOAD( "u78.4", 0x00000, 0x10000, CRC(9743a74d) SHA1(876696c5e88e58e6e44671c33a4c140be02a941e) ) // 0
	ROM_LOAD( "u77.3", 0x10000, 0x10000, CRC(f267109a) SHA1(679d2147c79636796dda850345c04ad8a9daa6af) ) // 0

	ROM_REGION( 0x20000, "gfx2", 0 ) /* GFX */
	ROM_LOAD( "u80.5", 0x00000, 0x10000, CRC(ff190865) SHA1(245e69651d0161fcb416bba8f743602b4ee83139) ) // 1 | should be u80.6 ?
	ROM_LOAD( "u79.5", 0x10000, 0x10000, CRC(333d5b8a) SHA1(d3573db87e2318c144ee9ace6c975a70fc96f4c4) ) // 1
ROM_END



/*************************************
 *
 *  Driver-specific initialization
 *
 *************************************/

static DRIVER_INIT( ddragon )
{
	sprite_irq = INPUT_LINE_NMI;
	sound_irq = M6809_IRQ_LINE;
	ym_irq = M6809_FIRQ_LINE;
	technos_video_hw = 0;
}


static DRIVER_INIT( ddragon2 )
{
	sprite_irq = INPUT_LINE_NMI;
	sound_irq = INPUT_LINE_NMI;
	ym_irq = 0;
	technos_video_hw = 2;
}


static DRIVER_INIT( darktowr )
{
	sprite_irq = INPUT_LINE_NMI;
	sound_irq = M6809_IRQ_LINE;
	ym_irq = M6809_FIRQ_LINE;
	technos_video_hw = 0;
	memory_install_write8_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x3808, 0x3808, 0, 0, darktowr_bankswitch_w);
}


static DRIVER_INIT( toffy )
{
	int i, length;
	UINT8 *rom;

	sound_irq = M6809_IRQ_LINE;
	ym_irq = M6809_FIRQ_LINE;
	technos_video_hw = 0;
	memory_install_write8_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x3808, 0x3808, 0, 0, toffy_bankswitch_w);

	/* the program rom has a simple bitswap encryption */
	rom = memory_region(machine, "maincpu");
	length = memory_region_length(machine, "maincpu");
	for (i = 0; i < length; i++)
		rom[i] = BITSWAP8(rom[i], 6,7,5,4,3,2,1,0);

	/* and the fg gfx ... */
	rom = memory_region(machine, "gfx1");
	length = memory_region_length(machine, "gfx1");
	for (i = 0; i < length; i++)
		rom[i] = BITSWAP8(rom[i], 7,6,5,3,4,2,1,0);

	/* and the sprites gfx */
	rom = memory_region(machine, "gfx2");
	length = memory_region_length(machine, "gfx2");
	for (i = 0; i < length; i++)
		rom[i] = BITSWAP8(rom[i], 7,6,5,4,3,2,0,1);

	/* and the bg gfx */
	rom = memory_region(machine, "gfx3");
	length = memory_region_length(machine, "gfx3");
	for (i = 0; i < length / 2; i++)
	{
		rom[i + 0*length/2] = BITSWAP8(rom[i + 0*length/2], 7,6,1,4,3,2,5,0);
		rom[i + 1*length/2] = BITSWAP8(rom[i + 1*length/2], 7,6,2,4,3,5,1,0);
	}

	/* should the sound rom be bitswapped too? */
}

static DRIVER_INIT( ddgn6809 )
{
	/* Descramble GFX here */

	sprite_irq = INPUT_LINE_NMI;
	sound_irq = M6809_IRQ_LINE;
	ym_irq = M6809_FIRQ_LINE;
	technos_video_hw = 0;
}

/*************************************
 *
 *  Game drivers
 *
 *************************************/

GAME( 1987, ddragon,  0,        ddragon,  ddragon,  ddragon,  ROT0, "Technos Japan", "Double Dragon (Japan)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragonw, ddragon,  ddragon,  ddragon,  ddragon,  ROT0, "[Technos Japan] (Taito license)", "Double Dragon (World Set 1)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragnw1, ddragon,  ddragon,  ddragon,  ddragon,  ROT0, "[Technos Japan] (Taito license)", "Double Dragon (World Set 2)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragonu, ddragon,  ddragon,  ddragon,  ddragon,  ROT0, "[Technos Japan] (Taito America license)", "Double Dragon (US Set 1)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragoua, ddragon,  ddragon,  ddragon,  ddragon,  ROT0, "[Technos Japan] (Taito America license)", "Double Dragon (US Set 2)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragob2, ddragon,  ddragon,  ddragon,  ddragon,  ROT0, "bootleg", "Double Dragon (bootleg)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddragonb, ddragon,  ddragonb, ddragon,  ddragon,  ROT0, "bootleg", "Double Dragon (bootleg with HD6309)", GAME_SUPPORTS_SAVE ) // according to dump notes
GAME( 1987, ddragnba, ddragon,  ddragnba, ddragon,  ddragon,  ROT0, "bootleg", "Double Dragon (bootleg with M6803)", GAME_SUPPORTS_SAVE )
GAME( 1987, ddgn6809, ddragon,  ddgn6809, ddragon,  ddgn6809, ROT0, "bootleg", "Double Dragon (bootleg with 3xM6809, set 1)", GAME_NOT_WORKING )
GAME( 1987, dd6809a,  ddragon,  ddgn6809, ddragon,  ddgn6809, ROT0, "bootleg", "Double Dragon (bootleg with 3xM6809, set 2)", GAME_NOT_WORKING )
GAME( 1988, ddragon2, 0,        ddragon2, ddragon2, ddragon2, ROT0, "Technos Japan", "Double Dragon II - The Revenge (World)", GAME_SUPPORTS_SAVE )
GAME( 1988, ddragn2u, ddragon2, ddragon2, ddragon2, ddragon2, ROT0, "Technos Japan", "Double Dragon II - The Revenge (US)", GAME_SUPPORTS_SAVE )

/* these were conversions of double dragon */
GAME( 1991, tstrike,  0,        darktowr, tstrike,  darktowr, ROT0, "East Coast Coin Company (Melbourne)", "Thunder Strike (Newer)", GAME_SUPPORTS_SAVE )
GAME( 1991, tstrikea, tstrike,  darktowr, tstrike,  darktowr, ROT0, "Game Room", "Thunder Strike (Older)", GAME_SUPPORTS_SAVE )
GAME( 1992, ddungeon, 0,        darktowr, ddungeon, darktowr, ROT0, "Game Room", "Dangerous Dungeons", GAME_SUPPORTS_SAVE )
GAME( 1992, ddungene, ddungeon, darktowr, ddungeon, darktowr, ROT0, "East Coast Coin Company (Melbourne)", "Dangerous Dungeons (East Coast Coin Company)", GAME_SUPPORTS_SAVE )
GAME( 1992, darktowr, 0,        darktowr, darktowr, darktowr, ROT0, "Game Room", "Dark Tower", GAME_SUPPORTS_SAVE )

/* these run on their own board, but are basically the same game. Toffy even has 'dangerous dungeons' text in it */
GAME( 1993, toffy,    0,        toffy,    toffy,    toffy,    ROT0, "Midas", "Toffy", GAME_SUPPORTS_SAVE )
GAME( 1994, stoffy,   0,        toffy,    toffy,    toffy,    ROT0, "Midas (Unico license)", "Super Toffy", GAME_SUPPORTS_SAVE )
