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

  Last Duel (USA set 1)           - Capcom, 1988
  Last Duel (USA set 2)           - Capcom, 1988
  Last Duel (Bootleg set)         - Capcom, 1988
  LED Storm (USA set)             - Capcom, 1988
  Mad Gear (World? set)           - Capcom, 1989

  Mad Gear (Japan set) has rom code MDJ and is not dumped yet, presumably
  other versions of Last Duel exist too.

  Emulation by Bryan McPhail, mish@tendril.force9.net

  Trivia ;)  The Mad Gear pcb has an unused pad on the board for an i8751
microcontroller.

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

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

extern int lastduel_vram_r(int offset);
extern void lastduel_vram_w(int offset,int value);
extern void lastduel_flip_w(int offset,int value);
extern int lastduel_scroll2_r(int offset);
extern int lastduel_scroll1_r(int offset);
extern void lastduel_scroll1_w(int offset,int value);
extern void lastduel_scroll2_w(int offset,int value);
extern void madgear_scroll1_w(int offset,int value);
extern void madgear_scroll2_w(int offset,int value);
extern int lastduel_vh_start(void);
extern int madgear_vh_start(void);
extern void lastduel_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
extern void ledstorm_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
extern void lastduel_scroll_w( int offset, int data );

extern unsigned char *lastduel_vram,*lastduel_scroll2,*lastduel_scroll1;
static unsigned char *lastduel_ram;

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

static int lastduel_inputs_r(int offset)
{

  switch (offset) {
  	case 0: /* Player 1 & Player 2 controls */
    	return(readinputport(0)<<8)+readinputport(1);

    case 2: /* Coins & Service switch */
      return readinputport(2);

    case 4: /* Dips */
    	return (readinputport(3)<<8)+readinputport(4);

    case 6: /* Dips, flip */
      return readinputport(5);
  }

  if (errorlog) fprintf(errorlog,"Unknown read\n" );
  return 0xffff;
}

static int madgear_inputs_r(int offset)
{
	switch (offset) {
    case 0: /* DIP switch A, DIP switch B */
      return(readinputport(3)<<8)+readinputport(4);

    case 2: /* DIP switch C */
    	return readinputport(5)<<8;

  	case 4: /* Player 1 & Player 2 controls */
    	return(readinputport(0)<<8)+readinputport(1);

    case 6: /* Start + coins */
    	return readinputport(2)<<8;
	}

	if (errorlog) fprintf(errorlog,"Unknown read\n" );
	return 0xffff;
}

static void lastduel_sound_w( int offset, int data )
{
	soundlatch_w(offset,data & 0xff);
}

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

static struct MemoryReadAddress lastduel_readmem[] =
{
	{ 0x000000, 0x05ffff, MRA_ROM },
	{ 0xfc0800, 0xfc0fff, MRA_BANK2 },
	{ 0xfc4000, 0xfc4007, lastduel_inputs_r },
	{ 0xfcc000, 0xfcdfff, lastduel_vram_r },
	{ 0xfd0000, 0xfd3fff, lastduel_scroll1_r },
	{ 0xfd4000, 0xfd7fff, lastduel_scroll2_r },
	{ 0xfd8000, 0xfd87ff, paletteram_word_r },
	{ 0xfe0000, 0xffffff, MRA_BANK1 },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress lastduel_writemem[] =
{
	{ 0x000000, 0x05ffff, MWA_ROM },
	{ 0xfc0000, 0xfc0003, MWA_NOP }, /* Written rarely */
	{ 0xfc0800, 0xfc0fff, MWA_BANK2, &spriteram },
	{ 0xfc4000, 0xfc4001, lastduel_flip_w },
	{ 0xfc4002, 0xfc4003, lastduel_sound_w },
	{ 0xfc8000, 0xfc800f, lastduel_scroll_w },
	{ 0xfcc000, 0xfcdfff, lastduel_vram_w,    &lastduel_vram },
	{ 0xfd0000, 0xfd3fff, lastduel_scroll1_w, &lastduel_scroll1 },
	{ 0xfd4000, 0xfd7fff, lastduel_scroll2_w, &lastduel_scroll2 },
	{ 0xfd8000, 0xfd87ff, paletteram_RRRRGGGGBBBBIIII_word_w, &paletteram },
	{ 0xfe0000, 0xffffff, MWA_BANK1, &lastduel_ram },
	{ -1 }	/* end of table */
};

static struct MemoryReadAddress madgear_readmem[] =
{
	{ 0x000000, 0x07ffff, MRA_ROM },
	{ 0xfc1800, 0xfc1fff, MRA_BANK2 },
	{ 0xfc4000, 0xfc4007, madgear_inputs_r },
	{ 0xfc8000, 0xfc9fff, lastduel_vram_r },
	{ 0xfcc000, 0xfcc7ff, paletteram_word_r },
	{ 0xfd4000, 0xfd7fff, lastduel_scroll1_r },
	{ 0xfd8000, 0xfdffff, lastduel_scroll2_r },
	{ 0xff0000, 0xffffff, MRA_BANK1 },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress madgear_writemem[] =
{
	{ 0x000000, 0x07ffff, MWA_ROM },
	{ 0xfc1800, 0xfc1fff, MWA_BANK2, &spriteram },
	{ 0xfc4000, 0xfc4001, lastduel_flip_w },
	{ 0xfc4002, 0xfc4003, lastduel_sound_w },
	{ 0xfc8000, 0xfc9fff, lastduel_vram_w,    &lastduel_vram },
	{ 0xfcc000, 0xfcc7ff, paletteram_RRRRGGGGBBBBIIII_word_w, &paletteram },
	{ 0xfd0000, 0xfd000f, lastduel_scroll_w },
	{ 0xfd4000, 0xfd7fff, madgear_scroll1_w, &lastduel_scroll1 },
	{ 0xfd8000, 0xfdffff, madgear_scroll2_w, &lastduel_scroll2 },
	{ 0xff0000, 0xffffff, MWA_BANK1,&lastduel_ram },
	{ -1 }	/* end of table */
};

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

static struct MemoryReadAddress sound_readmem[] =
{
	{ 0x0000, 0xdfff, MRA_ROM },
	{ 0xe000, 0xe7ff, MRA_RAM },
	{ 0xe800, 0xe800, YM2203_status_port_0_r },
	{ 0xf000, 0xf000, YM2203_status_port_1_r },
	{ 0xf800, 0xf800, soundlatch_r },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress sound_writemem[] =
{
	{ 0x0000, 0xdfff, MWA_ROM },
	{ 0xe000, 0xe7ff, MWA_RAM },
	{ 0xe800, 0xe800, YM2203_control_port_0_w },
	{ 0xe801, 0xe801, YM2203_write_port_0_w },
	{ 0xf000, 0xf000, YM2203_control_port_1_w },
	{ 0xf001, 0xf001, YM2203_write_port_1_w },
	{ -1 }	/* end of table */
};

static void mg_bankswitch_w(int offset, int data)
{
	int bankaddress;
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[1].memory_region];

	bankaddress = 0x10000 + (data & 0x01) * 0x4000;
	cpu_setbank(3,&RAM[bankaddress]);
}

static struct MemoryReadAddress mg_sound_readmem[] =
{
	{ 0x0000, 0x7fff, MRA_ROM },
	{ 0x8000, 0xcfff, MRA_BANK3 },
	{ 0xd000, 0xd7ff, MRA_RAM },
 	{ 0xf000, 0xf000, YM2203_status_port_0_r },
 	{ 0xf002, 0xf002, YM2203_status_port_1_r },
 	{ 0xf006, 0xf006, soundlatch_r },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress mg_sound_writemem[] =
{
	{ 0x0000, 0xcfff, MWA_ROM },
	{ 0xd000, 0xd7ff, MWA_RAM },
 	{ 0xf000, 0xf000, YM2203_control_port_0_w },
 	{ 0xf001, 0xf001, YM2203_write_port_0_w },
 	{ 0xf002, 0xf002, YM2203_control_port_1_w },
	{ 0xf003, 0xf003, YM2203_write_port_1_w },
	{ 0xf004, 0xf004, OKIM6295_data_0_w },
	{ 0xf00a, 0xf00a, mg_bankswitch_w },
	{ -1 }	/* end of table */
};

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

static struct GfxLayout sprites =
{
  16,16,  /* 16*16 sprites */
  4096,   /* 32 bytes per sprite, 0x20000 per plane so 4096 sprites */
  4,      /* 4 bits per pixel */
  { 0x00000*8, 0x20000*8, 0x40000*8, 0x60000*8  },
  {
    0,1,2,3,4,5,6,7,
    (16*8)+0,(16*8)+1,(16*8)+2,(16*8)+3,
    (16*8)+4,(16*8)+5,(16*8)+6,(16*8)+7
  },
  {
    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,
  },
  32*8   /* every sprite takes 32 consecutive bits */
};

static struct GfxLayout text_layout =
{
  8,8,    /* 8*8 characters */
  2048,   /* 2048 character */
  2,      /* 2 bitplanes */
  { 4,0 },
  {
    0,1,2,3,8,9,10,11
  },
  {
    0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16
  },
  16*8   /* every character takes 16 consecutive bytes */
};

static struct GfxLayout scroll1layout =
{
  16,16,  /* 16*16 tiles */
  2048,   /* 2048 tiles */
  4,      /* 4 bits per pixel */
  { 4,0,(0x020000*8)+4,0x020000*8, },
  {
    0,1,2,3,8,9,10,11,
    (8*4*8)+0,(8*4*8)+1,(8*4*8)+2,(8*4*8)+3,
    (8*4*8)+8,(8*4*8)+9,(8*4*8)+10,(8*4*8)+11
  },
  {
    0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16,
    8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16
  },
  64*8   /* each tile takes 64 consecutive bytes */
};

static struct GfxLayout scroll2layout =
{
  16,16,  /* 16*16 tiles */
  4096,   /* 4096 tiles */
  4,      /* 4 bits per pixel */
  { 4,0,(0x040000*8)+4,0x040000*8, },
  {
    0,1,2,3,8,9,10,11,
    (8*4*8)+0,(8*4*8)+1,(8*4*8)+2,(8*4*8)+3,
    (8*4*8)+8,(8*4*8)+9,(8*4*8)+10,(8*4*8)+11
  },
  {
    0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16,
    8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16
  },
  64*8   /* each tile takes 64 consecutive bytes */
};

static struct GfxLayout madgear_tile =
{
	16,16,
	2048,
	4,
	{ 12,8,4,0 },
	{
		0, 1, 2, 3,
		16,17,18,19,

		0+64*8, 1+64*8, 2+64*8, 3+64*8,
		16+64*8,17+64*8,18+64*8,19+64*8,
	},
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
			8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
	128*8
};

static struct GfxLayout madgear_tile2 =
{
	16,16,
	4096,
	4,
	{ 4,12,0,8 },
	{
		0, 1, 2, 3,
		16,17,18,19,

		0+64*8, 1+64*8, 2+64*8, 3+64*8,
		16+64*8,17+64*8,18+64*8,19+64*8,
	},
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
			8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
	128*8
};

static struct GfxDecodeInfo lastduel_gfxdecodeinfo[] =
{
  {  1, 0x40000,&sprites,       512, 16 },	/* colors 512-767 */
  {  1, 0xc0000,&text_layout,   768, 16 },	/* colors 768-831 */
  {  1, 0x00000,&scroll1layout,   0, 16 },	/* colors   0-255 */
  {  1, 0xc8000,&scroll2layout,	256, 16 },	/* colors 256-511 */
  { -1 }
};

static struct GfxDecodeInfo madgear_gfxdecodeinfo[] =
{
  {  1, 0x40000,&sprites,       512, 16 },	/* colors 512-767 */
  {  1, 0xc0000,&text_layout,   768, 16 },	/* colors 768-831 */
  {  1, 0x00000,&madgear_tile,    0, 16 },	/* colors   0-255 */
  {  1, 0xc8000,&madgear_tile2,	256, 16 },	/* colors 256-511 */
  { -1 }
};

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

/* handler called by the 2203 emulator when the internal timers cause an IRQ */
static void irqhandler(int irq)
{
	cpu_set_irq_line(1,0,irq ? ASSERT_LINE : CLEAR_LINE);
}

static struct OKIM6295interface okim6295_interface =
{
	1,              /* 1 chip */
	{ 8000 },           /* 8000Hz frequency */
	{ 3 },			/* memory region 3 */
	{ 90 }
};

static struct YM2203interface ym2203_interface =
{
	2,			/* 2 chips */
	3579545, /* Accurate */
	{ YM2203_VOL(30,30), YM2203_VOL(30,30) },
	AY8910_DEFAULT_GAIN,
	{ 0 },
	{ 0 },
	{ 0 },
	{ 0 },
	{ irqhandler }
};

static int lastduel_interrupt(void)
{
	if (cpu_getiloops() == 0) return 2; /* VBL */
	else return 4; /* Controls */
}

static int madgear_interrupt(void)
{
	if (cpu_getiloops() == 0) return 5; /* VBL */
	else return 6; /* Controls */
}

static struct MachineDriver lastduel_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_M68000,
			10000000, /* Could be 8 MHz */
			0,
			lastduel_readmem, lastduel_writemem, 0,0,
			lastduel_interrupt,3	/* 1 for vbl, 2 for control reads?? */
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			3579545, /* Accurate */
			2,
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,0	/* IRQs are caused by the YM2203 */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,
	1,
	0,

	/* video hardware */
	64*8, 32*8, { 8*8, 56*8-1, 2*8, 30*8-1 }, /* 384 x 228? */

	lastduel_gfxdecodeinfo,
	1024, 1024,
	0,

	VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE | VIDEO_UPDATE_BEFORE_VBLANK,
	0,
	lastduel_vh_start,
	0,
	lastduel_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_YM2203,
			&ym2203_interface
		}
	}
};

static struct MachineDriver madgear_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_M68000,
			10000000, /* Accurate */
			0,
			madgear_readmem, madgear_writemem, 0,0,
			madgear_interrupt,3	/* 1 for vbl, 2 for control reads?? */
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			3579545, /* Accurate */
			2,
			mg_sound_readmem,mg_sound_writemem,0,0,
			ignore_interrupt,0	/* IRQs are caused by the YM2203 */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,
	1,
	0,

	/* video hardware */
	64*8, 32*8, { 8*8, 56*8-1, 1*8, 31*8-1 }, /* 384 x 240? */

	madgear_gfxdecodeinfo,
	1024, 1024,
	0,

	VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE | VIDEO_UPDATE_BEFORE_VBLANK,
	0,
	madgear_vh_start,
	0,
	ledstorm_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_YM2203,
			&ym2203_interface
		},
		{
			SOUND_OKIM6295,
			&okim6295_interface
		}
	}
};

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

INPUT_PORTS_START( lastduel_input_ports )
	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_SERVICE( 0x08, IP_ACTIVE_LOW )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )

	PORT_START
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x02, "Easy" )
	PORT_DIPSETTING(    0x03, "Normal" )
	PORT_DIPSETTING(    0x01, "Difficult" )
	PORT_DIPSETTING(    0x00, "Very Difficult" )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )	/* Could be cabinet type? */
	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( 0x30, 0x30, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x20, "20000 60000 80000" )
	PORT_DIPSETTING(    0x30, "30000 80000 80000" )
	PORT_DIPSETTING(    0x10, "40000 80000 80000" )
	PORT_DIPSETTING(    0x00, "40000 80000 100000" )
	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 ) )

	PORT_START
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) )
	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_6C ) )
	PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_B ) )
	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_6C ) )
	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 ) )

	PORT_START
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x02, "4" )
	PORT_DIPSETTING(    0x01, "6" )
	PORT_DIPSETTING(    0x00, "8" )
	PORT_DIPNAME( 0x04, 0x04, "Type" )
	PORT_DIPSETTING(    0x04, "Car" )
	PORT_DIPSETTING(    0x00, "Plane" )
	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( Demo_Sounds ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x20, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, "Allow Continue" )
	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Yes ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
INPUT_PORTS_END

INPUT_PORTS_START( madgear_input_ports )
	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )

	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_COCKTAIL )

	PORT_START
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN3 )

	PORT_START /* Dip switch A */
	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_SERVICE( 0x80, IP_ACTIVE_LOW )

	PORT_START /* Dip switch B */
	PORT_DIPNAME( 0x01, 0x01, "Allow Continue" )
	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Yes ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x08, "Easy" )
	PORT_DIPSETTING(    0x0c, "Normal" )
	PORT_DIPSETTING(    0x04, "Difficult" )
	PORT_DIPSETTING(    0x00, "Very Difficult" )
	PORT_DIPNAME( 0x30, 0x30, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x30, "1 Player" )
	PORT_DIPSETTING(    0x10, "2 Player Cocktail" )
	PORT_DIPSETTING(    0x00, "2 Player Upright" )
	PORT_DIPSETTING(    0x20, "1 Player" )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x40, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, "Background Music" )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x80, DEF_STR( On ) )

	PORT_START /* Dip switch C, free play is COIN A all off, COIN B all on */
	PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x0f, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0e, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x0a, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x09, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 5C_1C ) )
	PORT_DIPSETTING(    0x03, "5 Coins/3 Credits" )
	PORT_DIPSETTING(    0x02, DEF_STR( 6C_1C ) )
	PORT_DIPSETTING(    0x01, "8 Coins/3 Credits" )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0xf0, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0xe0, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0xd0, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0xb0, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0xa0, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x90, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x70, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x60, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x50, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x40, DEF_STR( 5C_1C ) )
	PORT_DIPSETTING(    0x30, "5 Coins/3 Credits" )
	PORT_DIPSETTING(    0x20, DEF_STR( 6C_1C ) )
	PORT_DIPSETTING(    0x10, "8 Coins/3 Credits" )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
INPUT_PORTS_END

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

ROM_START( lastduel_rom )
	ROM_REGION(0x60000)	/* 68000 code */
	ROM_LOAD_EVEN( "ldu-06.rom",   0x00000, 0x20000, 0x4228a00b )
	ROM_LOAD_ODD ( "ldu-05.rom",   0x00000, 0x20000, 0x7260434f )
	ROM_LOAD_EVEN( "ldu-04.rom",   0x40000, 0x10000, 0x429fb964 )
	ROM_LOAD_ODD ( "ldu-03.rom",   0x40000, 0x10000, 0x5aa4df72 )

	ROM_REGION_DISPOSE(0x148000) /* temporary space for graphics */
	ROM_LOAD( "ld_17.bin",    0x000000, 0x10000, 0x7188bfdd ) /* tiles */
	ROM_LOAD( "ld_18.bin",    0x010000, 0x10000, 0xa62af66a )
	ROM_LOAD( "ld_19.bin",    0x020000, 0x10000, 0x4b762e50 )
	ROM_LOAD( "ld_20.bin",    0x030000, 0x10000, 0xb140188e )
	ROM_LOAD( "ld_09.bin",    0x040000, 0x10000, 0xf8fd5243 ) /* sprites */
	ROM_LOAD( "ld_10.bin",    0x050000, 0x10000, 0xb49ad746 )
	ROM_LOAD( "ld_11.bin",    0x060000, 0x10000, 0x1a0d180e )
	ROM_LOAD( "ld_12.bin",    0x070000, 0x10000, 0xb2745e26 )
	ROM_LOAD( "ld_15.bin",    0x080000, 0x10000, 0x96b13bbc )
	ROM_LOAD( "ld_16.bin",    0x090000, 0x10000, 0x9d80f7e6 )
	ROM_LOAD( "ld_13.bin",    0x0a0000, 0x10000, 0xa1a598ac )
	ROM_LOAD( "ld_14.bin",    0x0b0000, 0x10000, 0xedf515cc )
	ROM_LOAD( "ld_01.bin",    0x0c0000, 0x08000, 0xad3c6f87 ) /* 8x8 text */
	ROM_LOAD( "ld_28.bin",    0x0c8000, 0x10000, 0x06778248 ) /* tiles */
	ROM_LOAD( "ld_26.bin",    0x0d8000, 0x10000, 0xb0edac81 )
	ROM_LOAD( "ld_24.bin",    0x0e8000, 0x10000, 0x66eac4df )
	ROM_LOAD( "ld_22.bin",    0x0f8000, 0x10000, 0xf80f8812 )
	ROM_LOAD( "ld_27.bin",    0x108000, 0x10000, 0x48c78675 )
	ROM_LOAD( "ld_25.bin",    0x118000, 0x10000, 0xc541ae9a )
	ROM_LOAD( "ld_23.bin",    0x128000, 0x10000, 0xd817332c )
	ROM_LOAD( "ld_21.bin",    0x138000, 0x10000, 0xb74f0c0e )

	ROM_REGION( 0x10000 ) /* audio CPU */
	ROM_LOAD( "ld_02.bin",    0x0000, 0x10000, 0x91834d0c )
ROM_END

ROM_START( lstduela_rom )
	ROM_REGION(0x60000)	/* 68000 code */
	ROM_LOAD_EVEN( "06",   0x00000, 0x20000, 0x0e71acaf )
	ROM_LOAD_ODD ( "05",   0x00000, 0x20000, 0x47a85bea )
	ROM_LOAD_EVEN( "04",   0x40000, 0x10000, 0xaa4bf001 )
	ROM_LOAD_ODD ( "03",   0x40000, 0x10000, 0xbbaac8ab )

	ROM_REGION_DISPOSE(0x148000) /* temporary space for graphics */
	ROM_LOAD( "ld_17.bin",    0x000000, 0x10000, 0x7188bfdd ) /* tiles */
	ROM_LOAD( "ld_18.bin",    0x010000, 0x10000, 0xa62af66a )
	ROM_LOAD( "ld_19.bin",    0x020000, 0x10000, 0x4b762e50 )
	ROM_LOAD( "ld_20.bin",    0x030000, 0x10000, 0xb140188e )
	ROM_LOAD( "ld_09.bin",    0x040000, 0x10000, 0xf8fd5243 ) /* sprites */
	ROM_LOAD( "ld_10.bin",    0x050000, 0x10000, 0xb49ad746 )
	ROM_LOAD( "ld_11.bin",    0x060000, 0x10000, 0x1a0d180e )
	ROM_LOAD( "ld_12.bin",    0x070000, 0x10000, 0xb2745e26 )
	ROM_LOAD( "ld_15.bin",    0x080000, 0x10000, 0x96b13bbc )
	ROM_LOAD( "ld_16.bin",    0x090000, 0x10000, 0x9d80f7e6 )
	ROM_LOAD( "ld_13.bin",    0x0a0000, 0x10000, 0xa1a598ac )
	ROM_LOAD( "ld_14.bin",    0x0b0000, 0x10000, 0xedf515cc )
	ROM_LOAD( "ld_01.bin",    0x0c0000, 0x08000, 0xad3c6f87 ) /* 8x8 text */
	ROM_LOAD( "ld_28.bin",    0x0c8000, 0x10000, 0x06778248 ) /* tiles */
	ROM_LOAD( "ld_26.bin",    0x0d8000, 0x10000, 0xb0edac81 )
	ROM_LOAD( "ld_24.bin",    0x0e8000, 0x10000, 0x66eac4df )
	ROM_LOAD( "ld_22.bin",    0x0f8000, 0x10000, 0xf80f8812 )
	ROM_LOAD( "ld_27.bin",    0x108000, 0x10000, 0x48c78675 )
	ROM_LOAD( "ld_25.bin",    0x118000, 0x10000, 0xc541ae9a )
	ROM_LOAD( "ld_23.bin",    0x128000, 0x10000, 0xd817332c )
	ROM_LOAD( "ld_21.bin",    0x138000, 0x10000, 0xb74f0c0e )

	ROM_REGION( 0x10000 ) /* audio CPU */
	ROM_LOAD( "ld_02.bin",    0x0000, 0x10000, 0x91834d0c )
ROM_END

ROM_START( lstduelb_rom )
	ROM_REGION(0x60000)	/* 68000 code */
	ROM_LOAD_EVEN( "ld_08.bin",    0x00000, 0x10000, 0x43811a96 )
	ROM_LOAD_ODD ( "ld_07.bin",    0x00000, 0x10000, 0x63c30946 )
	ROM_LOAD_EVEN( "ld_04.bin",    0x20000, 0x10000, 0x46a4e0f8 )
	ROM_LOAD_ODD ( "ld_03.bin",    0x20000, 0x10000, 0x8d5f204a )
	ROM_LOAD_EVEN( "ldu-04.rom",   0x40000, 0x10000, 0x429fb964 )
	ROM_LOAD_ODD ( "ldu-03.rom",   0x40000, 0x10000, 0x5aa4df72 )

	ROM_REGION_DISPOSE(0x148000) /* temporary space for graphics */
	ROM_LOAD( "ld_17.bin",    0x000000, 0x10000, 0x7188bfdd ) /* tiles */
	ROM_LOAD( "ld_18.bin",    0x010000, 0x10000, 0xa62af66a )
	ROM_LOAD( "ld_19.bin",    0x020000, 0x10000, 0x4b762e50 )
	ROM_LOAD( "ld_20.bin",    0x030000, 0x10000, 0xb140188e )
	ROM_LOAD( "ld_09.bin",    0x040000, 0x10000, 0xf8fd5243 ) /* sprites */
	ROM_LOAD( "ld_10.bin",    0x050000, 0x10000, 0xb49ad746 )
	ROM_LOAD( "ld_11.bin",    0x060000, 0x10000, 0x1a0d180e )
	ROM_LOAD( "ld_12.bin",    0x070000, 0x10000, 0xb2745e26 )
	ROM_LOAD( "ld_15.bin",    0x080000, 0x10000, 0x96b13bbc )
	ROM_LOAD( "ld_16.bin",    0x090000, 0x10000, 0x9d80f7e6 )
	ROM_LOAD( "ld_13.bin",    0x0a0000, 0x10000, 0xa1a598ac )
	ROM_LOAD( "ld_14.bin",    0x0b0000, 0x10000, 0xedf515cc )
	ROM_LOAD( "ld_01.bin",    0x0c0000, 0x08000, 0xad3c6f87 ) /* 8x8 text */
	ROM_LOAD( "ld_28.bin",    0x0c8000, 0x10000, 0x06778248 ) /* tiles */
	ROM_LOAD( "ld_26.bin",    0x0d8000, 0x10000, 0xb0edac81 )
	ROM_LOAD( "ld_24.bin",    0x0e8000, 0x10000, 0x66eac4df )
	ROM_LOAD( "ld_22.bin",    0x0f8000, 0x10000, 0xf80f8812 )
	ROM_LOAD( "ld_27.bin",    0x108000, 0x10000, 0x48c78675 )
	ROM_LOAD( "ld_25.bin",    0x118000, 0x10000, 0xc541ae9a )
	ROM_LOAD( "ld_23.bin",    0x128000, 0x10000, 0xd817332c )
	ROM_LOAD( "ld_21.bin",    0x138000, 0x10000, 0xb74f0c0e )

	ROM_REGION( 0x10000 ) /* audio CPU */
	ROM_LOAD( "ld_02.bin",    0x0000, 0x10000, 0x91834d0c )
ROM_END

ROM_START( madgear_rom )
	ROM_REGION(0x80000)	/* 256K for 68000 code */
	ROM_LOAD_EVEN( "mg_04.rom",    0x00000, 0x20000, 0xb112257d )
	ROM_LOAD_ODD ( "mg_03.rom",    0x00000, 0x20000, 0xb2672465 )
	ROM_LOAD_EVEN( "mg_02.rom",    0x40000, 0x20000, 0x9f5ebe16 )
	ROM_LOAD_ODD ( "mg_01.rom",    0x40000, 0x20000, 0x1cea2af0 )

	ROM_REGION_DISPOSE(0x148000) /* temporary space for graphics */
	ROM_LOAD( "ls-12",        0x000000, 0x40000, 0x6c1b2c6c )
	ROM_LOAD( "mg_m11.rom",   0x040000, 0x10000, 0xee319a64 )	/* Interleaved sprites */
	ROM_LOAD( "mg_m07.rom",   0x050000, 0x10000, 0xe5c0b211 )
	ROM_LOAD( "mg_m12.rom",   0x060000, 0x10000, 0x887ef120 )
	ROM_LOAD( "mg_m08.rom",   0x070000, 0x10000, 0x59709aa3 )
	ROM_LOAD( "mg_m13.rom",   0x080000, 0x10000, 0xeae07db4 )
	ROM_LOAD( "mg_m09.rom",   0x090000, 0x10000, 0x40ee83eb )
	ROM_LOAD( "mg_m14.rom",   0x0a0000, 0x10000, 0x21e5424c )
	ROM_LOAD( "mg_m10.rom",   0x0b0000, 0x10000, 0xb64afb54 )
	ROM_LOAD( "mg_06.rom",    0x0c0000, 0x08000, 0x382ee59b )	/* 8x8 text */
	ROM_LOAD( "ls-11",        0x0c8000, 0x80000, 0x6bf81c64 )

	ROM_REGION( 0x18000 ) /* audio CPU */
	ROM_LOAD( "mg_05.rom",    0x00000,  0x08000, 0x2fbfc945 )
	ROM_CONTINUE(             0x10000,  0x08000 )

	ROM_REGION( 0x40000 ) /* ADPCM */
	ROM_LOAD( "ls-06",        0x00000, 0x20000, 0x88d39a5b )
	ROM_LOAD( "ls-05",        0x20000, 0x20000, 0xb06e03b5 )
ROM_END

ROM_START( ledstorm_rom )
	ROM_REGION(0x80000)	/* 256K for 68000 code */
	ROM_LOAD_EVEN( "mdu.04",    0x00000, 0x20000, 0x7f7f8329 )
	ROM_LOAD_ODD ( "mdu.03",    0x00000, 0x20000, 0x11fa542f )
	ROM_LOAD_EVEN( "mg_02.rom", 0x40000, 0x20000, 0x9f5ebe16 )
	ROM_LOAD_ODD ( "mg_01.rom", 0x40000, 0x20000, 0x1cea2af0 )

	ROM_REGION_DISPOSE(0x148000) /* temporary space for graphics */
	ROM_LOAD( "ls-12",        0x000000, 0x40000, 0x6c1b2c6c )
	ROM_LOAD( "mg_m11.rom",   0x040000, 0x10000, 0xee319a64 )	/* Interleaved sprites */
	ROM_LOAD( "07",           0x050000, 0x10000, 0x7152b212 )
	ROM_LOAD( "mg_m12.rom",   0x060000, 0x10000, 0x887ef120 )
	ROM_LOAD( "08",           0x070000, 0x10000, 0x72e5d525 )
	ROM_LOAD( "mg_m13.rom",   0x080000, 0x10000, 0xeae07db4 )
	ROM_LOAD( "09",           0x090000, 0x10000, 0x7b5175cb )
	ROM_LOAD( "mg_m14.rom",   0x0a0000, 0x10000, 0x21e5424c )
	ROM_LOAD( "10",           0x0b0000, 0x10000, 0x6db7ca64 )
	ROM_LOAD( "06",           0x0c0000, 0x08000, 0x54bfdc02 )	/* 8x8 text */
	ROM_LOAD( "ls-11",        0x0c8000, 0x80000, 0x6bf81c64 )

	ROM_REGION( 0x18000 ) /* audio CPU */
	ROM_LOAD( "mg_05.rom",    0x00000,  0x08000, 0x2fbfc945 )
	ROM_CONTINUE(             0x10000,  0x08000 )

	ROM_REGION( 0x40000 ) /* ADPCM */
	ROM_LOAD( "ls-06",        0x00000, 0x20000, 0x88d39a5b )
	ROM_LOAD( "ls-05",        0x20000, 0x20000, 0xb06e03b5 )
ROM_END

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

/*added by hsc 1/18/98 */

#ifdef LSB_FIRST
#define ENDIAN_ALIGN(a)	(a)
#else
#define ENDIAN_ALIGN(a) (a^1)
#endif

static int hiload(void)
{

    void *f;
    /* check if the hi score table has already been initialized */
    if (READ_WORD(&lastduel_ram[0x1c706])==0x2 &&
		READ_WORD(&lastduel_ram[0x1c708])==0 &&
		READ_WORD(&lastduel_ram[0x1c752])==0x434f &&
		READ_WORD(&lastduel_ram[0x1c754])==0x4d20)
    {
        if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,0)) != 0)
        {
    	  	int hi;
			osd_fread_msbfirst(f,&lastduel_ram[0x1c706],80);
			osd_fclose(f);

			memcpy (&lastduel_ram[0x187e2],&lastduel_ram[0x1c706],4);


			hi =(lastduel_ram[ENDIAN_ALIGN(0x187e4)] & 0x0f) +
				(lastduel_ram[ENDIAN_ALIGN(0x187e4)] >> 4) * 10 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e5)] & 0x0f) * 100 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e5)] >> 4) * 1000 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e2)] & 0x0f) * 10000 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e2)] >> 4) * 100000 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e3)] & 0x0f) * 1000000 +
				(lastduel_ram[ENDIAN_ALIGN(0x187e3)] >> 4) * 10000000;

			if (hi >= 0){
			lastduel_vram[ENDIAN_ALIGN(0x0a6c)]=lastduel_ram[ENDIAN_ALIGN(0x187e4)] >>4;
			lastduel_vram[ENDIAN_ALIGN(0x0a6d)]=0x50;
			}
			if (hi >= 10){
			lastduel_vram[ENDIAN_ALIGN(0x0aec)]=lastduel_ram[ENDIAN_ALIGN(0x187e4)]& 0x0f;
			lastduel_vram[ENDIAN_ALIGN(0x0aed)]=0x50;
			}
			if (hi >= 100){
			lastduel_vram[ENDIAN_ALIGN(0x096c)]=lastduel_ram[ENDIAN_ALIGN(0x187e5)] >>4;
			lastduel_vram[ENDIAN_ALIGN(0x096d)]=0x50;
			}
			if (hi >= 1000){
			lastduel_vram[ENDIAN_ALIGN(0x09ec)]=lastduel_ram[ENDIAN_ALIGN(0x187e5)]& 0x0f;
			lastduel_vram[ENDIAN_ALIGN(0x09ed)]=0x50;
			}
			if (hi >= 10000){
			lastduel_vram[ENDIAN_ALIGN(0x086c)]=lastduel_ram[ENDIAN_ALIGN(0x187e2)] >>4;
			lastduel_vram[ENDIAN_ALIGN(0x086d)]=0x50;
			}
			if (hi >= 100000){
			lastduel_vram[ENDIAN_ALIGN(0x08ec)]=lastduel_ram[ENDIAN_ALIGN(0x187e2)]& 0x0f;
			lastduel_vram[ENDIAN_ALIGN(0x08ed)]=0x50;
			}
			if (hi >= 1000000){
			lastduel_vram[ENDIAN_ALIGN(0x076c)]=lastduel_ram[ENDIAN_ALIGN(0x187e3)] >>4;
			lastduel_vram[ENDIAN_ALIGN(0x076d)]=0x50;
			}
			if (hi >= 10000000){
			lastduel_vram[ENDIAN_ALIGN(0x07ec)]=lastduel_ram[ENDIAN_ALIGN(0x187e3)]& 0x0f;
			lastduel_vram[ENDIAN_ALIGN(0x07ed)]=0x50;
			}



		}
		return 1;
	}
    else return 0;  /* we can't load the hi scores yet */
}

static void hisave(void)
{
	void *f;

	if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,1)) != 0)
	{
		lastduel_ram[ENDIAN_ALIGN(0x187e1)]=0;
		lastduel_ram[ENDIAN_ALIGN(0x187e6)]=0;
		osd_fwrite_msbfirst(f,&lastduel_ram[0x1c706],80);

		osd_fclose(f);
	}
}

static int madgear_hiload(void)
{

    void *f;
    /* check if the hi score table has already been initialized */
    if (READ_WORD(&lastduel_ram[0x88a4])==0x0010 &&
		READ_WORD(&lastduel_ram[0x88a6])==0x0000 &&
		READ_WORD(&lastduel_ram[0x88f0])==0x434f &&
		READ_WORD(&lastduel_ram[0x88f2])==0x4d03)
    {
        if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,0)) != 0)
        {

			osd_fread_msbfirst(f,&lastduel_ram[0x88a4],80);

			osd_fclose(f);

		}
		return 1;
	}
    else return 0;  /* we can't load the hi scores yet */
}

static void madgear_hisave(void)
{
	void *f;

	if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,1)) != 0)
	{
		osd_fwrite_msbfirst(f,&lastduel_ram[0x88a4],80);
		osd_fclose(f);
	}
}

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

struct GameDriver lastduel_driver =
{
	__FILE__,
	0,
	"lastduel",
	"Last Duel (US set 1)",
	"1988",
	"Capcom",
	"Bryan McPhail",
	0,
	&lastduel_machine_driver,
	0,

	lastduel_rom,
	0,0,0,0,

	lastduel_input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_270,
	hiload,hisave
};

struct GameDriver lstduela_driver =
{
	__FILE__,
	&lastduel_driver,
	"lstduela",
	"Last Duel (US set 2)",
	"1988",
	"Capcom",
	"Bryan McPhail",
	0,
	&lastduel_machine_driver,
	0,

	lstduela_rom,
	0,0,0,0,

	lastduel_input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_270,
	hiload,hisave
};

struct GameDriver lstduelb_driver =
{
	__FILE__,
	&lastduel_driver,
	"lstduelb",
	"Last Duel (bootleg)",
	"1988",
	"bootleg",
	"Bryan McPhail",
	0,
	&lastduel_machine_driver,
	0,

	lstduelb_rom,
	0,0,0,0,

	lastduel_input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_270,
	hiload, hisave
};

struct GameDriver madgear_driver =
{
	__FILE__,
	0,
	"madgear",
	"Mad Gear (US)",
	"1989",
	"Capcom",
	"Bryan McPhail",
	0,
	&madgear_machine_driver,
	0,

	madgear_rom,
	0,0,0,0,

	madgear_input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_270,
	madgear_hiload, madgear_hisave
};

struct GameDriver ledstorm_driver =
{
	__FILE__,
	&madgear_driver,
	"ledstorm",
	"Led Storm (US)",
	"1988",
	"Capcom",
	"Bryan McPhail",
	0,
	&madgear_machine_driver,
	0,

	ledstorm_rom,
	0,0,0,0,

	madgear_input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_270,
	madgear_hiload, madgear_hisave /* Untested */
};
