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path: root/src/mame/drivers/1943.c
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/***************************************************************************

    1943: The Battle of Midway
    Capcom

    driver by Paul Leaman

    Games supported:
        * 1943: The Battle of Midway (3 regions)
        * 1943 Kai: Midway Kaisen (Japan)

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

/*

    SERVICE TEST INFORMATION:

    - To access the unreachable tests (#4-7) in the Service Test, when starting
    up the machine after it has been set into Test Mode, hold down the left
    coin switch.


    TODO:

    - use priority PROM for drawing sprites
    - dump / decap the C8751H-88 MCU and use it's code to emulate the protection
    - find and dump an unmodified bme01.12d to correct the 1943 Euro set

*/

#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/2203intf.h"
#include "includes/1943.h"


/* Read/Write Handlers */

READ8_MEMBER(_1943_state::c1943_protection_r)
{
	/*
        This is a protection check. The game crashes (thru a jump to 0x8000)
        if a read from this address doesn't return the value it expects.
    */

	int data = cpu_get_reg(&space.device(), Z80_BC) >> 8;
//  logerror("protection read, PC: %04x Result:%02x\n", cpu_get_pc(&space.device()), data);
	return data;
}

/* Memory Maps */

static ADDRESS_MAP_START( c1943_map, AS_PROGRAM, 8, _1943_state )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1")
	AM_RANGE(0xc000, 0xc000) AM_READ_PORT("SYSTEM")
	AM_RANGE(0xc001, 0xc001) AM_READ_PORT("P1")
	AM_RANGE(0xc002, 0xc002) AM_READ_PORT("P2")
	AM_RANGE(0xc003, 0xc003) AM_READ_PORT("DSWA")
	AM_RANGE(0xc004, 0xc004) AM_READ_PORT("DSWB")
	AM_RANGE(0xc007, 0xc007) AM_READ(c1943_protection_r)
	AM_RANGE(0xc800, 0xc800) AM_WRITE(soundlatch_byte_w)
	AM_RANGE(0xc804, 0xc804) AM_WRITE(c1943_c804_w)	// ROM bank switch, screen flip
	AM_RANGE(0xc806, 0xc806) AM_WRITE(watchdog_reset_w)
	AM_RANGE(0xc807, 0xc807) AM_WRITENOP // ???
	AM_RANGE(0xd000, 0xd3ff) AM_RAM_WRITE(c1943_videoram_w) AM_SHARE("videoram")
	AM_RANGE(0xd400, 0xd7ff) AM_RAM_WRITE(c1943_colorram_w) AM_SHARE("colorram")
	AM_RANGE(0xd800, 0xd801) AM_RAM AM_SHARE("scrollx")
	AM_RANGE(0xd802, 0xd802) AM_RAM AM_SHARE("scrolly")
	AM_RANGE(0xd803, 0xd804) AM_RAM AM_SHARE("bgscrollx")
	AM_RANGE(0xd806, 0xd806) AM_WRITE(c1943_d806_w)	// sprites, bg1, bg2 enable
	AM_RANGE(0xd808, 0xd808) AM_WRITENOP // ???
	AM_RANGE(0xd868, 0xd868) AM_WRITENOP // ???
	AM_RANGE(0xd888, 0xd888) AM_WRITENOP // ???
	AM_RANGE(0xd8a8, 0xd8a8) AM_WRITENOP // ???
	AM_RANGE(0xe000, 0xefff) AM_RAM
	AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("spriteram")
ADDRESS_MAP_END

static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8, _1943_state )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0xc000, 0xc7ff) AM_RAM
	AM_RANGE(0xc800, 0xc800) AM_READ(soundlatch_byte_r)
	AM_RANGE(0xe000, 0xe001) AM_DEVWRITE_LEGACY("ym1", ym2203_w)
	AM_RANGE(0xe002, 0xe003) AM_DEVWRITE_LEGACY("ym2", ym2203_w)
ADDRESS_MAP_END

/* Input Ports */

static INPUT_PORTS_START( 1943 )
	PORT_START("SYSTEM")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SPECIAL )	// VBLANK
	PORT_BIT( 0x30, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )

	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_DOWN ) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	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_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) 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( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("DSWA")
	PORT_DIPNAME( 0x0f, 0x08, DEF_STR( Difficulty ) )		PORT_DIPLOCATION("SWA:5,6,7,8")
	PORT_DIPSETTING(    0x0f, "1 (Easy)" )
	PORT_DIPSETTING(    0x0e, "2" )
	PORT_DIPSETTING(    0x0d, "3" )
	PORT_DIPSETTING(    0x0c, "4" )
	PORT_DIPSETTING(    0x0b, "5" )
	PORT_DIPSETTING(    0x0a, "6" )
	PORT_DIPSETTING(    0x09, "7" )
	PORT_DIPSETTING(    0x08, "8 (Normal)" )
	PORT_DIPSETTING(    0x07, "9" )
	PORT_DIPSETTING(    0x06, "10" )
	PORT_DIPSETTING(    0x05, "11" )
	PORT_DIPSETTING(    0x04, "12" )
	PORT_DIPSETTING(    0x03, "13" )
	PORT_DIPSETTING(    0x02, "14" )
	PORT_DIPSETTING(    0x01, "15" )
	PORT_DIPSETTING(    0x00, "16 (Difficult)" )
	PORT_DIPNAME( 0x10, 0x10, "2 Player Game" )				PORT_DIPLOCATION("SWA:4")
	PORT_DIPSETTING(    0x00, "1 Credit/2 Players" )
	PORT_DIPSETTING(    0x10, "2 Credits/2 Players" )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Cabinet ) )			PORT_DIPLOCATION("SWA:3")
	PORT_DIPSETTING(    0x20, DEF_STR( Upright ))
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ))
	PORT_DIPNAME( 0x40, 0x40, "Screen Stop" )				PORT_DIPLOCATION("SWA:2")
	PORT_DIPSETTING(    0x40, DEF_STR( Off ))
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_SERVICE_DIPLOC(0x80, IP_ACTIVE_LOW, "SWA:1" )

	PORT_START("DSWB")
	PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) )			PORT_DIPLOCATION("SWB:6,7,8")
	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("SWB:3,4,5")
	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( Allow_Continue ) )	PORT_DIPLOCATION("SWB:2")
	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Yes ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Demo_Sounds ) )		PORT_DIPLOCATION("SWB:1")
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x80, DEF_STR( On ) )
INPUT_PORTS_END

/* Graphics Layouts */

static const gfx_layout charlayout =
{
	8,8,	/* 8*8 characters */
	2048,	/* 2048 characters */
	2,	/* 2 bits per pixel */
	{ 4, 0 },
	{ 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3 },
	{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
	16*8	/* every char takes 16 consecutive bytes */
};

static const gfx_layout tilelayout =
{
	32,32,  /* 32*32 tiles */
	512,    /* 512 tiles */
	4,      /* 4 bits per pixel */
	{ 512*256*8+4, 512*256*8+0, 4, 0 },
	{ 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3,
			64*8+0, 64*8+1, 64*8+2, 64*8+3, 65*8+0, 65*8+1, 65*8+2, 65*8+3,
			128*8+0, 128*8+1, 128*8+2, 128*8+3, 129*8+0, 129*8+1, 129*8+2, 129*8+3,
			192*8+0, 192*8+1, 192*8+2, 192*8+3, 193*8+0, 193*8+1, 193*8+2, 193*8+3 },
	{ 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,
			16*16, 17*16, 18*16, 19*16, 20*16, 21*16, 22*16, 23*16,
			24*16, 25*16, 26*16, 27*16, 28*16, 29*16, 30*16, 31*16 },
	256*8	/* every tile takes 256 consecutive bytes */
};

static const gfx_layout bgtilelayout =
{
	32,32,  /* 32*32 tiles */
	128,    /* 128 tiles */
	4,      /* 4 bits per pixel */
	{ 128*256*8+4, 128*256*8+0, 4, 0 },
	{ 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3,
			64*8+0, 64*8+1, 64*8+2, 64*8+3, 65*8+0, 65*8+1, 65*8+2, 65*8+3,
			128*8+0, 128*8+1, 128*8+2, 128*8+3, 129*8+0, 129*8+1, 129*8+2, 129*8+3,
			192*8+0, 192*8+1, 192*8+2, 192*8+3, 193*8+0, 193*8+1, 193*8+2, 193*8+3 },
	{ 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,
			16*16, 17*16, 18*16, 19*16, 20*16, 21*16, 22*16, 23*16,
			24*16, 25*16, 26*16, 27*16, 28*16, 29*16, 30*16, 31*16 },
	256*8	/* every tile takes 256 consecutive bytes */
};

static const gfx_layout spritelayout =
{
	16,16,	/* 16*16 sprites */
	2048,	/* 2048 sprites */
	4,      /* 4 bits per pixel */
	{ 2048*64*8+4, 2048*64*8+0, 4, 0 },
	{ 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3,
			32*8+0, 32*8+1, 32*8+2, 32*8+3, 33*8+0, 33*8+1, 33*8+2, 33*8+3 },
	{ 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	/* every sprite takes 64 consecutive bytes */
};

/* Graphics Decode Info */

static GFXDECODE_START( 1943 )
	GFXDECODE_ENTRY( "gfx1", 0, charlayout,                  0, 32 )
	GFXDECODE_ENTRY( "gfx2", 0, tilelayout,               32*4, 16 )
	GFXDECODE_ENTRY( "gfx3", 0, bgtilelayout,       32*4+16*16, 16 )
	GFXDECODE_ENTRY( "gfx4", 0, spritelayout, 32*4+16*16+16*16, 16 )
GFXDECODE_END


/* Machine Driver */

static MACHINE_RESET( 1943 )
{
	_1943_state *state = machine.driver_data<_1943_state>();

	state->m_char_on = 0;
	state->m_obj_on = 0;
	state->m_bg1_on = 0;
	state->m_bg2_on = 0;
}

static MACHINE_CONFIG_START( 1943, _1943_state )

	// basic machine hardware
	MCFG_CPU_ADD("maincpu", Z80, XTAL_24MHz/4)	/* verified on pcb */
	MCFG_CPU_PROGRAM_MAP(c1943_map)
	MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)

	MCFG_CPU_ADD("audiocpu", Z80, XTAL_24MHz/8)	/* verified on pcb */
	MCFG_CPU_PROGRAM_MAP(sound_map)
	MCFG_CPU_PERIODIC_INT(irq0_line_hold, 4*60)

	MCFG_MACHINE_RESET(1943)

	// video hardware
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
	MCFG_SCREEN_UPDATE_STATIC(1943)

	MCFG_GFXDECODE(1943)
	MCFG_PALETTE_LENGTH(32*4+16*16+16*16+16*16)

	MCFG_PALETTE_INIT(1943)
	MCFG_VIDEO_START(1943)

	// sound hardware
	MCFG_SPEAKER_STANDARD_MONO("mono")

	MCFG_SOUND_ADD("ym1", YM2203, XTAL_24MHz/16)	/* verified on pcb */
	MCFG_SOUND_ROUTE(0, "mono", 0.15)
	MCFG_SOUND_ROUTE(1, "mono", 0.15)
	MCFG_SOUND_ROUTE(2, "mono", 0.15)
	MCFG_SOUND_ROUTE(3, "mono", 0.10)

	MCFG_SOUND_ADD("ym2", YM2203, XTAL_24MHz/16)	/* verified on pcb */
	MCFG_SOUND_ROUTE(0, "mono", 0.15)
	MCFG_SOUND_ROUTE(1, "mono", 0.15)
	MCFG_SOUND_ROUTE(2, "mono", 0.15)
	MCFG_SOUND_ROUTE(3, "mono", 0.10)
MACHINE_CONFIG_END

/* ROMs */

ROM_START( 1943 )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "bme01.12d", 0x00000, 0x08000, BAD_DUMP CRC(55fd447e) SHA1(f9125745ce85282aa487f744cbf509f335dc3e85) ) /* This rom was hacked, we need a dump of an original */
	ROM_LOAD( "bme02.13d", 0x10000, 0x10000, CRC(073fc57c) SHA1(6824fa387badd3c420f5c9e2b68159ac8a3aaec7) )
	ROM_LOAD( "bme03.14d", 0x20000, 0x10000, CRC(835822c2) SHA1(2c2fad13f062069efa7721abb9d807fb5a7625b4) ) /* These 3 roms have a BLUE stripe on them */

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bm04.5h", 0x00000, 0x8000, CRC(ee2bd2d7) SHA1(4d2d019a9f8452fbbb247e893280568a2e86073e) )

	ROM_REGION( 0x10000, "mcu", 0 ) /*  C8751H-88 MCU Code */
	ROM_LOAD( "bm.7k", 0x00000, 0x10000 , NO_DUMP ) /* can't be dumped */

	ROM_REGION( 0x8000, "gfx1", 0 )
	ROM_LOAD( "bm05.4k", 0x00000, 0x8000, CRC(46cb9d3d) SHA1(96fd0e714b91fe13a2ca0d185ada9e4b4baa0c0b) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 )
	ROM_LOAD( "bm15.10f", 0x00000, 0x8000, CRC(6b1a0443) SHA1(32337c840ccd6815fd5844c194365c58d708f6dc) )	/* bg tiles */
	ROM_LOAD( "bm16.11f", 0x08000, 0x8000, CRC(23c908c2) SHA1(42b83ff5781be9181802a21ff1b23c17ab1bc5a2) )
	ROM_LOAD( "bm17.12f", 0x10000, 0x8000, CRC(46bcdd07) SHA1(38feda668be25d1adc04aa36afc73b07c1545f89) )
	ROM_LOAD( "bm18.14f", 0x18000, 0x8000, CRC(e6ae7ba0) SHA1(959c306dc28b9be2adc54b3d46312d26764c7b8b) )
	ROM_LOAD( "bm19.10j", 0x20000, 0x8000, CRC(868ababc) SHA1(1c7be905f53c63bad25fbbd9b3cf82d2c7749bc3) )
	ROM_LOAD( "bm20.11j", 0x28000, 0x8000, CRC(0917e5d4) SHA1(62dd277bc1fa54cfe168ae2380bc147bd17f4205) )
	ROM_LOAD( "bm21.12j", 0x30000, 0x8000, CRC(9bfb0d89) SHA1(f1bae7ec46edcf46c7af84c054e89b322f8c8972) )
	ROM_LOAD( "bm22.14j", 0x38000, 0x8000, CRC(04f3c274) SHA1(932780c04abe285e1ec67b726b145175f73eafe0) )

	ROM_REGION( 0x10000, "gfx3", 0 )
	ROM_LOAD( "bm24.14k", 0x00000, 0x8000, CRC(11134036) SHA1(88da112ab9fc7e0d8f0e901f273715b950ae588c) )	/* fg tiles */
	ROM_LOAD( "bm25.14l", 0x08000, 0x8000, CRC(092cf9c1) SHA1(19fe3c714b1d52cbb21dea25cdee5af841f525db) )

	ROM_REGION( 0x40000, "gfx4", 0 )
	ROM_LOAD( "bm06.10a", 0x00000, 0x8000, CRC(97acc8af) SHA1(c9fa07cb61f6905408b355edabfe453fb652ff0d) )	/* sprites */
	ROM_LOAD( "bm07.11a", 0x08000, 0x8000, CRC(d78f7197) SHA1(6367c7e80e80d4a0d33d7840b5c843c63c80123e) )
	ROM_LOAD( "bm08.12a", 0x10000, 0x8000, CRC(1a626608) SHA1(755c27a07728fd686168e9d9e4dee3d8f274892a) )
	ROM_LOAD( "bm09.14a", 0x18000, 0x8000, CRC(92408400) SHA1(3ab299bad1ba115efead53ebd92254abe7a092ba) )
	ROM_LOAD( "bm10.10c", 0x20000, 0x8000, CRC(8438a44a) SHA1(873629b00cf3f6d8976a7fdafe63cd16e47b7491) )
	ROM_LOAD( "bm11.11c", 0x28000, 0x8000, CRC(6c69351d) SHA1(c213d5c3e76a5749bc32539604716dcef6dcb694) )
	ROM_LOAD( "bm12.12c", 0x30000, 0x8000, CRC(5e7efdb7) SHA1(fef271a38dc1a9e45a0c6e27e28e713c77c8f8c9) )
	ROM_LOAD( "bm13.14c", 0x38000, 0x8000, CRC(1143829a) SHA1(2b3a65e354a205c05a87f783e9938b64bc62396f) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bm14.5f", 0x0000, 0x8000, CRC(4d3c6401) SHA1(ce4f6dbf8fa030ad45cbb5afd58df27fed2d4618) )	/* front background */
	ROM_LOAD( "bm23.8k", 0x8000, 0x8000, CRC(a52aecbd) SHA1(45b0283d84d394c16c35802463ca95d70d1062d4) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bm1.12a",  0x0000, 0x0100, CRC(74421f18) SHA1(5b8b59f6f4e5ad358611de50608f47f41a5b0e51) )	/* red component */
	ROM_LOAD( "bm2.13a",  0x0100, 0x0100, CRC(ac27541f) SHA1(1796c4c9041dfe28e6319576f21df1dbcb8d12bf) )	/* green component */
	ROM_LOAD( "bm3.14a",  0x0200, 0x0100, CRC(251fb6ff) SHA1(d1118159b3d429d841e4efa938728ebedadd7ec5) )	/* blue component */
	ROM_LOAD( "bm5.7f",   0x0300, 0x0100, CRC(206713d0) SHA1(fa609f6d675af18c379838583505724d28bcff0e) )	/* char lookup table */
	ROM_LOAD( "bm10.7l",  0x0400, 0x0100, CRC(33c2491c) SHA1(13da924e4b182759c4aae49034f3a7cbe556ea65) )	/* foreground lookup table */
	ROM_LOAD( "bm9.6l",   0x0500, 0x0100, CRC(aeea4af7) SHA1(98f4570ee061e9aa58d8ed2d2f8ae59ce2ec5795) )	/* foreground palette bank */
	ROM_LOAD( "bm12.12m", 0x0600, 0x0100, CRC(c18aa136) SHA1(684f04d9a5b94ae1db5fb95763e65271f4cf8e01) )	/* background lookup table */
	ROM_LOAD( "bm11.12l", 0x0700, 0x0100, CRC(405aae37) SHA1(94a06f81b775c4e49d57d42fc064d3072a253bbd) )	/* background palette bank */
	ROM_LOAD( "bm8.8c",   0x0800, 0x0100, CRC(c2010a9e) SHA1(be9852500209066e2f0ff2770e0c217d1636a0b5) )	/* sprite lookup table */
	ROM_LOAD( "bm7.7c",   0x0900, 0x0100, CRC(b56f30c3) SHA1(9f5e6db464d21457a33ec8bdfdff069632b791db) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",  0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",   0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END

ROM_START( 1943u )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "bmu01c.12d", 0x00000, 0x08000, CRC(c686cc5c) SHA1(5efb2d9df737564d599f71b71a6438f7624b27c3) )
	ROM_LOAD( "bmu02c.13d", 0x10000, 0x10000, CRC(d8880a41) SHA1(2f9b6a3922efa05eed66c63284bace5f337304ac) )
	ROM_LOAD( "bmu03c.14d", 0x20000, 0x10000, CRC(3f0ee26c) SHA1(8da74fe91a6be3f23fc625f2a433f1f79c424994) ) /* These 3 roms have a RED stripe on them */

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bm04.5h", 0x00000, 0x8000, CRC(ee2bd2d7) SHA1(4d2d019a9f8452fbbb247e893280568a2e86073e) )

	ROM_REGION( 0x10000, "mcu", 0 ) /*  C8751H-88 MCU Code */
	ROM_LOAD( "bm.7k", 0x00000, 0x10000 , NO_DUMP ) /* can't be dumped */

	ROM_REGION( 0x8000, "gfx1", 0 )
	ROM_LOAD( "bm05.4k", 0x00000, 0x8000, CRC(46cb9d3d) SHA1(96fd0e714b91fe13a2ca0d185ada9e4b4baa0c0b) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 )
	ROM_LOAD( "bm15.10f", 0x00000, 0x8000, CRC(6b1a0443) SHA1(32337c840ccd6815fd5844c194365c58d708f6dc) )	/* bg tiles */
	ROM_LOAD( "bm16.11f", 0x08000, 0x8000, CRC(23c908c2) SHA1(42b83ff5781be9181802a21ff1b23c17ab1bc5a2) )
	ROM_LOAD( "bm17.12f", 0x10000, 0x8000, CRC(46bcdd07) SHA1(38feda668be25d1adc04aa36afc73b07c1545f89) )
	ROM_LOAD( "bm18.14f", 0x18000, 0x8000, CRC(e6ae7ba0) SHA1(959c306dc28b9be2adc54b3d46312d26764c7b8b) )
	ROM_LOAD( "bm19.10j", 0x20000, 0x8000, CRC(868ababc) SHA1(1c7be905f53c63bad25fbbd9b3cf82d2c7749bc3) )
	ROM_LOAD( "bm20.11j", 0x28000, 0x8000, CRC(0917e5d4) SHA1(62dd277bc1fa54cfe168ae2380bc147bd17f4205) )
	ROM_LOAD( "bm21.12j", 0x30000, 0x8000, CRC(9bfb0d89) SHA1(f1bae7ec46edcf46c7af84c054e89b322f8c8972) )
	ROM_LOAD( "bm22.14j", 0x38000, 0x8000, CRC(04f3c274) SHA1(932780c04abe285e1ec67b726b145175f73eafe0) )

	ROM_REGION( 0x10000, "gfx3", 0 )
	ROM_LOAD( "bm24.14k", 0x00000, 0x8000, CRC(11134036) SHA1(88da112ab9fc7e0d8f0e901f273715b950ae588c) )	/* fg tiles */
	ROM_LOAD( "bm25.14l", 0x08000, 0x8000, CRC(092cf9c1) SHA1(19fe3c714b1d52cbb21dea25cdee5af841f525db) )

	ROM_REGION( 0x40000, "gfx4", 0 )
	ROM_LOAD( "bm06.10a", 0x00000, 0x8000, CRC(97acc8af) SHA1(c9fa07cb61f6905408b355edabfe453fb652ff0d) )	/* sprites */
	ROM_LOAD( "bm07.11a", 0x08000, 0x8000, CRC(d78f7197) SHA1(6367c7e80e80d4a0d33d7840b5c843c63c80123e) )
	ROM_LOAD( "bm08.12a", 0x10000, 0x8000, CRC(1a626608) SHA1(755c27a07728fd686168e9d9e4dee3d8f274892a) )
	ROM_LOAD( "bm09.14a", 0x18000, 0x8000, CRC(92408400) SHA1(3ab299bad1ba115efead53ebd92254abe7a092ba) )
	ROM_LOAD( "bm10.10c", 0x20000, 0x8000, CRC(8438a44a) SHA1(873629b00cf3f6d8976a7fdafe63cd16e47b7491) )
	ROM_LOAD( "bm11.11c", 0x28000, 0x8000, CRC(6c69351d) SHA1(c213d5c3e76a5749bc32539604716dcef6dcb694) )
	ROM_LOAD( "bm12.12c", 0x30000, 0x8000, CRC(5e7efdb7) SHA1(fef271a38dc1a9e45a0c6e27e28e713c77c8f8c9) )
	ROM_LOAD( "bm13.14c", 0x38000, 0x8000, CRC(1143829a) SHA1(2b3a65e354a205c05a87f783e9938b64bc62396f) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bm14.5f", 0x0000, 0x8000, CRC(4d3c6401) SHA1(ce4f6dbf8fa030ad45cbb5afd58df27fed2d4618) )	/* front background */
	ROM_LOAD( "bm23.8k", 0x8000, 0x8000, CRC(a52aecbd) SHA1(45b0283d84d394c16c35802463ca95d70d1062d4) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bm1.12a",  0x0000, 0x0100, CRC(74421f18) SHA1(5b8b59f6f4e5ad358611de50608f47f41a5b0e51) )	/* red component */
	ROM_LOAD( "bm2.13a",  0x0100, 0x0100, CRC(ac27541f) SHA1(1796c4c9041dfe28e6319576f21df1dbcb8d12bf) )	/* green component */
	ROM_LOAD( "bm3.14a",  0x0200, 0x0100, CRC(251fb6ff) SHA1(d1118159b3d429d841e4efa938728ebedadd7ec5) )	/* blue component */
	ROM_LOAD( "bm5.7f",   0x0300, 0x0100, CRC(206713d0) SHA1(fa609f6d675af18c379838583505724d28bcff0e) )	/* char lookup table */
	ROM_LOAD( "bm10.7l",  0x0400, 0x0100, CRC(33c2491c) SHA1(13da924e4b182759c4aae49034f3a7cbe556ea65) )	/* foreground lookup table */
	ROM_LOAD( "bm9.6l",   0x0500, 0x0100, CRC(aeea4af7) SHA1(98f4570ee061e9aa58d8ed2d2f8ae59ce2ec5795) )	/* foreground palette bank */
	ROM_LOAD( "bm12.12m", 0x0600, 0x0100, CRC(c18aa136) SHA1(684f04d9a5b94ae1db5fb95763e65271f4cf8e01) )	/* background lookup table */
	ROM_LOAD( "bm11.12l", 0x0700, 0x0100, CRC(405aae37) SHA1(94a06f81b775c4e49d57d42fc064d3072a253bbd) )	/* background palette bank */
	ROM_LOAD( "bm8.8c",   0x0800, 0x0100, CRC(c2010a9e) SHA1(be9852500209066e2f0ff2770e0c217d1636a0b5) )	/* sprite lookup table */
	ROM_LOAD( "bm7.7c",   0x0900, 0x0100, CRC(b56f30c3) SHA1(9f5e6db464d21457a33ec8bdfdff069632b791db) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",  0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",   0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END

ROM_START( 1943j )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "bm01b.12d", 0x00000, 0x08000, CRC(363f9f3d) SHA1(06fbdf1fa2304a000bcb0a151b2ef4be8b291b0b) ) /* "B" stamped in red ink */
	ROM_LOAD( "bm02b.13d", 0x10000, 0x10000, CRC(7f0d7edc) SHA1(ef4aa067a1f55fead821097af215711be0a87075) )
	ROM_LOAD( "bm03b.14d", 0x20000, 0x10000, CRC(7093da2a) SHA1(27456593e47d69506a27804e32088b15c1f7d767) )

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bm04.5h", 0x00000, 0x8000, CRC(ee2bd2d7) SHA1(4d2d019a9f8452fbbb247e893280568a2e86073e) )

	ROM_REGION( 0x10000, "mcu", 0 ) /*  C8751H-88 MCU Code */
	ROM_LOAD( "bm.7k", 0x00000, 0x10000 , NO_DUMP ) /* can't be dumped */

	ROM_REGION( 0x8000, "gfx1", 0 )
	ROM_LOAD( "bm05.4k", 0x00000, 0x8000, CRC(46cb9d3d) SHA1(96fd0e714b91fe13a2ca0d185ada9e4b4baa0c0b) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 )
	ROM_LOAD( "bm15.10f", 0x00000, 0x8000, CRC(6b1a0443) SHA1(32337c840ccd6815fd5844c194365c58d708f6dc) )	/* bg tiles */
	ROM_LOAD( "bm16.11f", 0x08000, 0x8000, CRC(23c908c2) SHA1(42b83ff5781be9181802a21ff1b23c17ab1bc5a2) )
	ROM_LOAD( "bm17.12f", 0x10000, 0x8000, CRC(46bcdd07) SHA1(38feda668be25d1adc04aa36afc73b07c1545f89) )
	ROM_LOAD( "bm18.14f", 0x18000, 0x8000, CRC(e6ae7ba0) SHA1(959c306dc28b9be2adc54b3d46312d26764c7b8b) )
	ROM_LOAD( "bm19.10j", 0x20000, 0x8000, CRC(868ababc) SHA1(1c7be905f53c63bad25fbbd9b3cf82d2c7749bc3) )
	ROM_LOAD( "bm20.11j", 0x28000, 0x8000, CRC(0917e5d4) SHA1(62dd277bc1fa54cfe168ae2380bc147bd17f4205) )
	ROM_LOAD( "bm21.12j", 0x30000, 0x8000, CRC(9bfb0d89) SHA1(f1bae7ec46edcf46c7af84c054e89b322f8c8972) )
	ROM_LOAD( "bm22.14j", 0x38000, 0x8000, CRC(04f3c274) SHA1(932780c04abe285e1ec67b726b145175f73eafe0) )

	ROM_REGION( 0x10000, "gfx3", 0 )
	ROM_LOAD( "bm24.14k", 0x00000, 0x8000, CRC(11134036) SHA1(88da112ab9fc7e0d8f0e901f273715b950ae588c) )	/* fg tiles */
	ROM_LOAD( "bm25.14l", 0x08000, 0x8000, CRC(092cf9c1) SHA1(19fe3c714b1d52cbb21dea25cdee5af841f525db) )

	ROM_REGION( 0x40000, "gfx4", 0 )
	ROM_LOAD( "bm06.10a", 0x00000, 0x8000, CRC(97acc8af) SHA1(c9fa07cb61f6905408b355edabfe453fb652ff0d) )	/* sprites */
	ROM_LOAD( "bm07.11a", 0x08000, 0x8000, CRC(d78f7197) SHA1(6367c7e80e80d4a0d33d7840b5c843c63c80123e) )
	ROM_LOAD( "bm08.12a", 0x10000, 0x8000, CRC(1a626608) SHA1(755c27a07728fd686168e9d9e4dee3d8f274892a) )
	ROM_LOAD( "bm09.14a", 0x18000, 0x8000, CRC(92408400) SHA1(3ab299bad1ba115efead53ebd92254abe7a092ba) )
	ROM_LOAD( "bm10.10c", 0x20000, 0x8000, CRC(8438a44a) SHA1(873629b00cf3f6d8976a7fdafe63cd16e47b7491) )
	ROM_LOAD( "bm11.11c", 0x28000, 0x8000, CRC(6c69351d) SHA1(c213d5c3e76a5749bc32539604716dcef6dcb694) )
	ROM_LOAD( "bm12.12c", 0x30000, 0x8000, CRC(5e7efdb7) SHA1(fef271a38dc1a9e45a0c6e27e28e713c77c8f8c9) )
	ROM_LOAD( "bm13.14c", 0x38000, 0x8000, CRC(1143829a) SHA1(2b3a65e354a205c05a87f783e9938b64bc62396f) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bm14.5f", 0x0000, 0x8000, CRC(4d3c6401) SHA1(ce4f6dbf8fa030ad45cbb5afd58df27fed2d4618) )	/* front background */
	ROM_LOAD( "bm23.8k", 0x8000, 0x8000, CRC(a52aecbd) SHA1(45b0283d84d394c16c35802463ca95d70d1062d4) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bm1.12a",  0x0000, 0x0100, CRC(74421f18) SHA1(5b8b59f6f4e5ad358611de50608f47f41a5b0e51) )	/* red component */
	ROM_LOAD( "bm2.13a",  0x0100, 0x0100, CRC(ac27541f) SHA1(1796c4c9041dfe28e6319576f21df1dbcb8d12bf) )	/* green component */
	ROM_LOAD( "bm3.14a",  0x0200, 0x0100, CRC(251fb6ff) SHA1(d1118159b3d429d841e4efa938728ebedadd7ec5) )	/* blue component */
	ROM_LOAD( "bm5.7f",   0x0300, 0x0100, CRC(206713d0) SHA1(fa609f6d675af18c379838583505724d28bcff0e) )	/* char lookup table */
	ROM_LOAD( "bm10.7l",  0x0400, 0x0100, CRC(33c2491c) SHA1(13da924e4b182759c4aae49034f3a7cbe556ea65) )	/* foreground lookup table */
	ROM_LOAD( "bm9.6l",   0x0500, 0x0100, CRC(aeea4af7) SHA1(98f4570ee061e9aa58d8ed2d2f8ae59ce2ec5795) )	/* foreground palette bank */
	ROM_LOAD( "bm12.12m", 0x0600, 0x0100, CRC(c18aa136) SHA1(684f04d9a5b94ae1db5fb95763e65271f4cf8e01) )	/* background lookup table */
	ROM_LOAD( "bm11.12l", 0x0700, 0x0100, CRC(405aae37) SHA1(94a06f81b775c4e49d57d42fc064d3072a253bbd) )	/* background palette bank */
	ROM_LOAD( "bm8.8c",   0x0800, 0x0100, CRC(c2010a9e) SHA1(be9852500209066e2f0ff2770e0c217d1636a0b5) )	/* sprite lookup table */
	ROM_LOAD( "bm7.7c",   0x0900, 0x0100, CRC(b56f30c3) SHA1(9f5e6db464d21457a33ec8bdfdff069632b791db) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",  0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",   0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END

ROM_START( 1943ja )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "bm01.12d", 0x00000, 0x08000, CRC(f6935937) SHA1(6fe8885d734447c2a667cf80dd545200aad6c767) ) /* Rom labels/names + revision needs to be verified */
	ROM_LOAD( "bm02.13d", 0x10000, 0x10000, CRC(af971575) SHA1(af1d8ce73e8671b7b41248ce6486c9b5aaf6a233) )
	ROM_LOAD( "bm03.14d", 0x20000, 0x10000, CRC(300ec713) SHA1(f66d2356b413a418c887b4085a5315475c7a8bba) )

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bm04.5h", 0x00000, 0x8000, CRC(ee2bd2d7) SHA1(4d2d019a9f8452fbbb247e893280568a2e86073e) )

	ROM_REGION( 0x10000, "mcu", 0 ) /*  C8751H-88 MCU Code */
	ROM_LOAD( "bm.7k", 0x00000, 0x10000 , NO_DUMP ) /* can't be dumped */

	ROM_REGION( 0x8000, "gfx1", 0 )
	ROM_LOAD( "bm05.4k", 0x00000, 0x8000, CRC(46cb9d3d) SHA1(96fd0e714b91fe13a2ca0d185ada9e4b4baa0c0b) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 )
	ROM_LOAD( "bm15.10f", 0x00000, 0x8000, CRC(6b1a0443) SHA1(32337c840ccd6815fd5844c194365c58d708f6dc) )	/* bg tiles */
	ROM_LOAD( "bm16.11f", 0x08000, 0x8000, CRC(23c908c2) SHA1(42b83ff5781be9181802a21ff1b23c17ab1bc5a2) )
	ROM_LOAD( "bm17.12f", 0x10000, 0x8000, CRC(46bcdd07) SHA1(38feda668be25d1adc04aa36afc73b07c1545f89) )
	ROM_LOAD( "bm18.14f", 0x18000, 0x8000, CRC(e6ae7ba0) SHA1(959c306dc28b9be2adc54b3d46312d26764c7b8b) )
	ROM_LOAD( "bm19.10j", 0x20000, 0x8000, CRC(868ababc) SHA1(1c7be905f53c63bad25fbbd9b3cf82d2c7749bc3) )
	ROM_LOAD( "bm20.11j", 0x28000, 0x8000, CRC(0917e5d4) SHA1(62dd277bc1fa54cfe168ae2380bc147bd17f4205) )
	ROM_LOAD( "bm21.12j", 0x30000, 0x8000, CRC(9bfb0d89) SHA1(f1bae7ec46edcf46c7af84c054e89b322f8c8972) )
	ROM_LOAD( "bm22.14j", 0x38000, 0x8000, CRC(04f3c274) SHA1(932780c04abe285e1ec67b726b145175f73eafe0) )

	ROM_REGION( 0x10000, "gfx3", 0 )
	ROM_LOAD( "bm24.14k", 0x00000, 0x8000, CRC(11134036) SHA1(88da112ab9fc7e0d8f0e901f273715b950ae588c) )	/* fg tiles */
	ROM_LOAD( "bm25.14l", 0x08000, 0x8000, CRC(092cf9c1) SHA1(19fe3c714b1d52cbb21dea25cdee5af841f525db) )

	ROM_REGION( 0x40000, "gfx4", 0 )
	ROM_LOAD( "bm06.10a", 0x00000, 0x8000, CRC(97acc8af) SHA1(c9fa07cb61f6905408b355edabfe453fb652ff0d) )	/* sprites */
	ROM_LOAD( "bm07.11a", 0x08000, 0x8000, CRC(d78f7197) SHA1(6367c7e80e80d4a0d33d7840b5c843c63c80123e) )
	ROM_LOAD( "bm08.12a", 0x10000, 0x8000, CRC(1a626608) SHA1(755c27a07728fd686168e9d9e4dee3d8f274892a) )
	ROM_LOAD( "bm09.14a", 0x18000, 0x8000, CRC(92408400) SHA1(3ab299bad1ba115efead53ebd92254abe7a092ba) )
	ROM_LOAD( "bm10.10c", 0x20000, 0x8000, CRC(8438a44a) SHA1(873629b00cf3f6d8976a7fdafe63cd16e47b7491) )
	ROM_LOAD( "bm11.11c", 0x28000, 0x8000, CRC(6c69351d) SHA1(c213d5c3e76a5749bc32539604716dcef6dcb694) )
	ROM_LOAD( "bm12.12c", 0x30000, 0x8000, CRC(5e7efdb7) SHA1(fef271a38dc1a9e45a0c6e27e28e713c77c8f8c9) )
	ROM_LOAD( "bm13.14c", 0x38000, 0x8000, CRC(1143829a) SHA1(2b3a65e354a205c05a87f783e9938b64bc62396f) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bm14.5f", 0x0000, 0x8000, CRC(4d3c6401) SHA1(ce4f6dbf8fa030ad45cbb5afd58df27fed2d4618) )	/* front background */
	ROM_LOAD( "bm23.8k", 0x8000, 0x8000, CRC(a52aecbd) SHA1(45b0283d84d394c16c35802463ca95d70d1062d4) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bm1.12a",  0x0000, 0x0100, CRC(74421f18) SHA1(5b8b59f6f4e5ad358611de50608f47f41a5b0e51) )	/* red component */
	ROM_LOAD( "bm2.13a",  0x0100, 0x0100, CRC(ac27541f) SHA1(1796c4c9041dfe28e6319576f21df1dbcb8d12bf) )	/* green component */
	ROM_LOAD( "bm3.14a",  0x0200, 0x0100, CRC(251fb6ff) SHA1(d1118159b3d429d841e4efa938728ebedadd7ec5) )	/* blue component */
	ROM_LOAD( "bm5.7f",   0x0300, 0x0100, CRC(206713d0) SHA1(fa609f6d675af18c379838583505724d28bcff0e) )	/* char lookup table */
	ROM_LOAD( "bm10.7l",  0x0400, 0x0100, CRC(33c2491c) SHA1(13da924e4b182759c4aae49034f3a7cbe556ea65) )	/* foreground lookup table */
	ROM_LOAD( "bm9.6l",   0x0500, 0x0100, CRC(aeea4af7) SHA1(98f4570ee061e9aa58d8ed2d2f8ae59ce2ec5795) )	/* foreground palette bank */
	ROM_LOAD( "bm12.12m", 0x0600, 0x0100, CRC(c18aa136) SHA1(684f04d9a5b94ae1db5fb95763e65271f4cf8e01) )	/* background lookup table */
	ROM_LOAD( "bm11.12l", 0x0700, 0x0100, CRC(405aae37) SHA1(94a06f81b775c4e49d57d42fc064d3072a253bbd) )	/* background palette bank */
	ROM_LOAD( "bm8.8c",   0x0800, 0x0100, CRC(c2010a9e) SHA1(be9852500209066e2f0ff2770e0c217d1636a0b5) )	/* sprite lookup table */
	ROM_LOAD( "bm7.7c",   0x0900, 0x0100, CRC(b56f30c3) SHA1(9f5e6db464d21457a33ec8bdfdff069632b791db) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",  0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",   0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END

ROM_START( 1943kai )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "bmk01.12d", 0x00000, 0x08000, CRC(7d2211db) SHA1(b02a0b3daf7e1e224b7cad8fbe93439bd5ec9f0b) )
	ROM_LOAD( "bmk02.13d", 0x10000, 0x10000, CRC(2ebbc8c5) SHA1(3be5ad061411642723e3f2bcb7b3c3caa11ee15f) )
	ROM_LOAD( "bmk03.14d", 0x20000, 0x10000, CRC(475a6ac5) SHA1(fa07a855ba9173b6f81641c806ec7d938b0c282e) )

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bmk04.5h", 0x00000, 0x8000, CRC(25f37957) SHA1(1e50c2a920eb3b5c881843686db857e9fee5ba1d) )

	ROM_REGION( 0x10000, "mcu", 0 ) /*  C8751H-88 MCU Code */
	ROM_LOAD( "bm.7k", 0x00000, 0x10000 , NO_DUMP ) /* can't be dumped */

	ROM_REGION( 0x8000, "gfx1", 0 )
	ROM_LOAD( "bmk05.4k", 0x00000, 0x8000, CRC(884a8692) SHA1(027aa8c868dc07ccd9e27705031107881aef4b91) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 ) /* Yes, BM15 & BM19 are NOT BMK */
	ROM_LOAD( "bm15.10f",  0x00000, 0x8000, CRC(6b1a0443) SHA1(32337c840ccd6815fd5844c194365c58d708f6dc) )	/* bg tiles */
	ROM_LOAD( "bmk16.11f", 0x08000, 0x8000, CRC(9416fe0d) SHA1(92fbc8fffa4497747ab80abe20eef361f6525114) )
	ROM_LOAD( "bmk17.12f", 0x10000, 0x8000, CRC(3d5acab9) SHA1(887d45b648fda952ae2137579f383ab8ede1facd) )
	ROM_LOAD( "bmk18.14f", 0x18000, 0x8000, CRC(7b62da1d) SHA1(1926109a2ab2f550ca87b0d2af73abd2b4a7498d) )
	ROM_LOAD( "bm19.10j",  0x20000, 0x8000, CRC(868ababc) SHA1(1c7be905f53c63bad25fbbd9b3cf82d2c7749bc3) )
	ROM_LOAD( "bmk20.11j", 0x28000, 0x8000, CRC(b90364c1) SHA1(104bc02237eeead84c7f35462186d0a1af8761bc) )
	ROM_LOAD( "bmk21.12j", 0x30000, 0x8000, CRC(8c7fe74a) SHA1(8846b57d7f47c10ab1f505c359ecf36dcbacb011) )
	ROM_LOAD( "bmk22.14j", 0x38000, 0x8000, CRC(d5ef8a0e) SHA1(2e42b1fbbfe823a33740a56d1334657db56d24d2) )

	ROM_REGION( 0x10000, "gfx3", 0 )
	ROM_LOAD( "bmk24.14k", 0x00000, 0x8000, CRC(bf186ef2) SHA1(cacbb8a61f8a64c3ba4ffde5ca6f07fe120b9a7e) )	/* fg tiles */
	ROM_LOAD( "bmk25.14l", 0x08000, 0x8000, CRC(a755faf1) SHA1(8ee286d6ad7454ae34971f5891ddba4b76c244b0) )

	ROM_REGION( 0x40000, "gfx4", 0 )
	ROM_LOAD( "bmk06.10a", 0x00000, 0x8000, CRC(5f7e38b3) SHA1(33f69ebe91a0ee45d9107171fed26da475aaab3a) )	/* sprites */
	ROM_LOAD( "bmk07.11a", 0x08000, 0x8000, CRC(ff3751fd) SHA1(bc942ddd46e7b147115e8ac22d24c2d018a7c373) )
	ROM_LOAD( "bmk08.12a", 0x10000, 0x8000, CRC(159d51bd) SHA1(746aa49b18aff0eaf2fb875c573d455416d45a1d) )
	ROM_LOAD( "bmk09.14a", 0x18000, 0x8000, CRC(8683e3d2) SHA1(591dc4811b226fe11cd5441ecb51aa3e95e68ac5) )
	ROM_LOAD( "bmk10.10c", 0x20000, 0x8000, CRC(1e0d9571) SHA1(44ea9603020e9ab717e3e506f7ecf288506c0502) )
	ROM_LOAD( "bmk11.11c", 0x28000, 0x8000, CRC(f1fc5ee1) SHA1(4ffc8e57734d3b59df695b86070511f1c447b992) )
	ROM_LOAD( "bmk12.12c", 0x30000, 0x8000, CRC(0f50c001) SHA1(0e6367d3f0ba39a00ee0fa6e42ae9d43d12da23d) )
	ROM_LOAD( "bmk13.14c", 0x38000, 0x8000, CRC(fd1acf8e) SHA1(88477ff1e5fbbca251d8cd4f241b42618ba64a80) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bmk14.5f", 0x0000, 0x8000, CRC(cf0f5a53) SHA1(dc50f3f937f52910dbd0cedbc232acfed0aa6a42) )	/* front background */
	ROM_LOAD( "bmk23.8k", 0x8000, 0x8000, CRC(17f77ef9) SHA1(8ebb4b440042436ec2db52bad808cced832db77c) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bmk1.12a",  0x0000, 0x0100, CRC(e001ea33) SHA1(4204bdf87820ac84bab2a1b5571a2ee28c4cdfc5) )	/* red component */
	ROM_LOAD( "bmk2.13a",  0x0100, 0x0100, CRC(af34d91a) SHA1(94bc6514c980fdd1cb013ff0819d6f32464c581c) )	/* green component */
	ROM_LOAD( "bmk3.14a",  0x0200, 0x0100, CRC(43e9f6ef) SHA1(e1f58368fe0bd9b53f6c286ce5009b218a5197dc) )	/* blue component */
	ROM_LOAD( "bmk5.7f",   0x0300, 0x0100, CRC(41878934) SHA1(8f28210ab1d409c89600169a136b74a706001cdf) )	/* char lookup table */
	ROM_LOAD( "bmk10.7l",  0x0400, 0x0100, CRC(de44b748) SHA1(0694fb19d98ccda728424436fc7350da7b5bd05e) )	/* foreground lookup table */
	ROM_LOAD( "bmk9.6l",   0x0500, 0x0100, CRC(59ea57c0) SHA1(f961c7e9981cc819c2adf4efdc977841d284a3a2) )	/* foreground palette bank */
	ROM_LOAD( "bmk12.12m", 0x0600, 0x0100, CRC(8765f8b0) SHA1(f32bab8e3587434b864fe97da9423f2335ccba2e) )	/* background lookup table */
	ROM_LOAD( "bmk11.12l", 0x0700, 0x0100, CRC(87a8854e) SHA1(0cbc601b736d566d625867d65e0f7b2abb535c65) )	/* background palette bank */
	ROM_LOAD( "bmk8.8c",   0x0800, 0x0100, CRC(dad17e2d) SHA1(fdb18ddc7574153bb7e27ba08b04b9dc87061c02) )	/* sprite lookup table */
	ROM_LOAD( "bmk7.7c",   0x0900, 0x0100, CRC(76307f8d) SHA1(8d655e2a5c50541795316d924b2f18b55f4b9571) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",   0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",    0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END


ROM_START( 1943b )
	ROM_REGION( 0x30000, "maincpu", 0 )	/* 64k for code + 128k for the banked ROMs images */
	ROM_LOAD( "1.12d",    0x00000, 0x08000, CRC(9a2d70ab) SHA1(6f84e906656f132ffcb63022f6d067580d261431) ) // protection patched out, disclaimer patched out
	ROM_LOAD( "bm02.13d", 0x10000, 0x10000, CRC(af971575) SHA1(af1d8ce73e8671b7b41248ce6486c9b5aaf6a233) )
	ROM_LOAD( "bm03.14d", 0x20000, 0x10000, CRC(300ec713) SHA1(f66d2356b413a418c887b4085a5315475c7a8bba) )

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "bm04.5h", 0x00000, 0x8000, CRC(ee2bd2d7) SHA1(4d2d019a9f8452fbbb247e893280568a2e86073e) )

	ROM_REGION( 0x8000, "gfx1", 0 ) // logo replaced
	ROM_LOAD( "4.5h", 0x00000, 0x8000, CRC(0aba2096) SHA1(4833ad9f747b529ce92c4993388ab3516f8df4ed) )	/* characters */

	ROM_REGION( 0x40000, "gfx2", 0 ) // same data, double size roms
	ROM_LOAD( "15.12f", 0x00000, 0x10000, CRC(622b4fba) SHA1(181d7b0a1ca0cfcc3bd71f0b97dc80f7ff27a9c6) )	/* bg tiles */
	ROM_LOAD( "16.14f", 0x10000, 0x10000, CRC(25471a8d) SHA1(a3930dea9b64e84ade78dae4a631ebb7e9741954) )
	ROM_LOAD( "17.12j", 0x20000, 0x10000, CRC(9da79653) SHA1(b9852c476110db3f654152ca85265d184a1a816e) )
	ROM_LOAD( "18.14j", 0x30000, 0x10000, CRC(1f3aced8) SHA1(14ae016279628732b397db9a526bfda7ede0be5a) )

	ROM_REGION( 0x10000, "gfx3", 0 ) // same
	ROM_LOAD( "bm24.14k", 0x00000, 0x8000, CRC(11134036) SHA1(88da112ab9fc7e0d8f0e901f273715b950ae588c) )	/* fg tiles */
	ROM_LOAD( "bm25.14l", 0x08000, 0x8000, CRC(092cf9c1) SHA1(19fe3c714b1d52cbb21dea25cdee5af841f525db) )

	ROM_REGION( 0x40000, "gfx4", 0 ) // same
	ROM_LOAD( "bm06.10a", 0x00000, 0x8000, CRC(97acc8af) SHA1(c9fa07cb61f6905408b355edabfe453fb652ff0d) )	/* sprites */
	ROM_LOAD( "bm07.11a", 0x08000, 0x8000, CRC(d78f7197) SHA1(6367c7e80e80d4a0d33d7840b5c843c63c80123e) )
	ROM_LOAD( "bm08.12a", 0x10000, 0x8000, CRC(1a626608) SHA1(755c27a07728fd686168e9d9e4dee3d8f274892a) )
	ROM_LOAD( "bm09.14a", 0x18000, 0x8000, CRC(92408400) SHA1(3ab299bad1ba115efead53ebd92254abe7a092ba) )
	ROM_LOAD( "bm10.10c", 0x20000, 0x8000, CRC(8438a44a) SHA1(873629b00cf3f6d8976a7fdafe63cd16e47b7491) )
	ROM_LOAD( "bm11.11c", 0x28000, 0x8000, CRC(6c69351d) SHA1(c213d5c3e76a5749bc32539604716dcef6dcb694) )
	ROM_LOAD( "bm12.12c", 0x30000, 0x8000, CRC(5e7efdb7) SHA1(fef271a38dc1a9e45a0c6e27e28e713c77c8f8c9) )
	ROM_LOAD( "bm13.14c", 0x38000, 0x8000, CRC(1143829a) SHA1(2b3a65e354a205c05a87f783e9938b64bc62396f) )

	ROM_REGION( 0x10000, "gfx5", 0 )	/* tilemaps */
	ROM_LOAD( "bm14.5f", 0x0000, 0x8000, CRC(4d3c6401) SHA1(ce4f6dbf8fa030ad45cbb5afd58df27fed2d4618) )	/* front background */
	ROM_LOAD( "bm23.8k", 0x8000, 0x8000, CRC(a52aecbd) SHA1(45b0283d84d394c16c35802463ca95d70d1062d4) )	/* back background */

	ROM_REGION( 0x0c00, "proms", 0 )
	ROM_LOAD( "bm1.12a",  0x0000, 0x0100, CRC(74421f18) SHA1(5b8b59f6f4e5ad358611de50608f47f41a5b0e51) )	/* red component */
	ROM_LOAD( "bm2.13a",  0x0100, 0x0100, CRC(ac27541f) SHA1(1796c4c9041dfe28e6319576f21df1dbcb8d12bf) )	/* green component */
	ROM_LOAD( "bm3.14a",  0x0200, 0x0100, CRC(251fb6ff) SHA1(d1118159b3d429d841e4efa938728ebedadd7ec5) )	/* blue component */
	ROM_LOAD( "bm5.7f",   0x0300, 0x0100, CRC(206713d0) SHA1(fa609f6d675af18c379838583505724d28bcff0e) )	/* char lookup table */
	ROM_LOAD( "bm10.7l",  0x0400, 0x0100, CRC(33c2491c) SHA1(13da924e4b182759c4aae49034f3a7cbe556ea65) )	/* foreground lookup table */
	ROM_LOAD( "bm9.6l",   0x0500, 0x0100, CRC(aeea4af7) SHA1(98f4570ee061e9aa58d8ed2d2f8ae59ce2ec5795) )	/* foreground palette bank */
	ROM_LOAD( "bm12.12m", 0x0600, 0x0100, CRC(c18aa136) SHA1(684f04d9a5b94ae1db5fb95763e65271f4cf8e01) )	/* background lookup table */
	ROM_LOAD( "bm11.12l", 0x0700, 0x0100, CRC(405aae37) SHA1(94a06f81b775c4e49d57d42fc064d3072a253bbd) )	/* background palette bank */
	ROM_LOAD( "bm8.8c",   0x0800, 0x0100, CRC(c2010a9e) SHA1(be9852500209066e2f0ff2770e0c217d1636a0b5) )	/* sprite lookup table */
	ROM_LOAD( "bm7.7c",   0x0900, 0x0100, CRC(b56f30c3) SHA1(9f5e6db464d21457a33ec8bdfdff069632b791db) )	/* sprite palette bank */
	ROM_LOAD( "bm4.12c",  0x0a00, 0x0100, CRC(91a8a2e1) SHA1(9583c87eff876f04bc2ccf7218cd8081f1bcdb94) )	/* priority encoder / palette selector (not used) */
	ROM_LOAD( "bm6.4b",   0x0b00, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) )	/* video timing (not used) */
ROM_END


static DRIVER_INIT( 1943 )
{
	UINT8 *ROM = machine.root_device().memregion("maincpu")->base();
	machine.root_device().membank("bank1")->configure_entries(0, 8, &ROM[0x10000], 0x4000);
}

READ8_MEMBER(_1943_state::_1943b_c007_r){ return 0; }

static DRIVER_INIT( 1943b )
{
	_1943_state *state = machine.driver_data<_1943_state>();
	DRIVER_INIT_CALL( 1943 );
	//it expects 0x00 to be returned from the protection reads because the protection has been patched out.
	//AM_RANGE(0xc007, 0xc007) AM_READ(c1943_protection_r)
	machine.device("maincpu")->memory().space(AS_PROGRAM)->install_read_handler(0xc007, 0xc007, read8_delegate(FUNC(_1943_state::_1943b_c007_r),state));

}

/* Game Drivers */
GAME( 1987, 1943,     0,     1943,   1943,  1943, ROT270,  "Capcom",  "1943: The Battle of Midway (Euro)", GAME_SUPPORTS_SAVE )
GAME( 1987, 1943u,    1943,  1943,   1943,  1943, ROT270,  "Capcom",  "1943: The Battle of Midway (US, Rev C)", GAME_SUPPORTS_SAVE )
GAME( 1987, 1943j,    1943,  1943,   1943,  1943, ROT270,  "Capcom",  "1943: Midway Kaisen (Japan, Rev B)", GAME_SUPPORTS_SAVE )
GAME( 1987, 1943ja,   1943,  1943,   1943,  1943, ROT270,  "Capcom",  "1943: Midway Kaisen (Japan)", GAME_SUPPORTS_SAVE )
GAME( 1987, 1943b,    1943,  1943,   1943,  1943b,ROT270,  "bootleg", "1943: Battle of Midway (bootleg, hack of Japan set)", GAME_SUPPORTS_SAVE )
GAME( 1987, 1943kai,  0,     1943,   1943,  1943, ROT270,  "Capcom",  "1943 Kai: Midway Kaisen (Japan)", GAME_SUPPORTS_SAVE )