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path: root/src/mame/drivers/aliens.cpp
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// license:BSD-3-Clause
// copyright-holders:Manuel Abadia
/***************************************************************************

Aliens (c) 1990 Konami Co. Ltd

Preliminary driver by:
    Manuel Abadia <emumanu+mame@gmail.com>

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

#include "emu.h"
#include "includes/aliens.h"
#include "includes/konamipt.h"

#include "cpu/z80/z80.h"
#include "cpu/m6809/konami.h" /* for the callback and the firq irq definition */
#include "machine/watchdog.h"
#include "sound/ym2151.h"
#include "speaker.h"


WRITE8_MEMBER(aliens_state::aliens_coin_counter_w)
{
	/* bits 0-1 = coin counters */
	machine().bookkeeping().coin_counter_w(0, data & 0x01);
	machine().bookkeeping().coin_counter_w(1, data & 0x02);

	/* bit 5 = select work RAM or palette */
	m_bank0000->set_bank((data & 0x20) >> 5);

	/* bit 6 = enable char ROM reading through the video RAM */
	m_k052109->set_rmrd_line((data & 0x40) ? ASSERT_LINE : CLEAR_LINE);

	/* other bits unknown */
#if 0
{
	char baf[40];
	sprintf(baf, "%02x", data);
	popmessage(baf);
}
#endif
}

WRITE8_MEMBER(aliens_state::aliens_sh_irqtrigger_w)
{
	m_soundlatch->write(space, offset, data);
	m_audiocpu->set_input_line(0, HOLD_LINE);
}

WRITE8_MEMBER(aliens_state::aliens_snd_bankswitch_w)
{
	/* b1: bank for chanel A */
	/* b0: bank for chanel B */

	int bank_A = BIT(data, 1);
	int bank_B = BIT(data, 0);

	m_k007232->set_bank(bank_A, bank_B);
}


READ8_MEMBER(aliens_state::k052109_051960_r)
{
	if (m_k052109->get_rmrd_line() == CLEAR_LINE)
	{
		if (offset >= 0x3800 && offset < 0x3808)
			return m_k051960->k051937_r(space, offset - 0x3800);
		else if (offset < 0x3c00)
			return m_k052109->read(space, offset);
		else
			return m_k051960->k051960_r(space, offset - 0x3c00);
	}
	else
		return m_k052109->read(space, offset);
}

WRITE8_MEMBER(aliens_state::k052109_051960_w)
{
	if (offset >= 0x3800 && offset < 0x3808)
		m_k051960->k051937_w(space, offset - 0x3800, data);
	else if (offset < 0x3c00)
		m_k052109->write(space, offset, data);
	else
		m_k051960->k051960_w(space, offset - 0x3c00, data);
}

void aliens_state::aliens_map(address_map &map)
{
	map(0x0000, 0x03ff).m(m_bank0000, FUNC(address_map_bank_device::amap8));
	map(0x0400, 0x1fff).ram();
	map(0x2000, 0x3fff).bankr("rombank");                                /* banked ROM */
	map(0x4000, 0x7fff).rw(this, FUNC(aliens_state::k052109_051960_r), FUNC(aliens_state::k052109_051960_w));
	map(0x5f80, 0x5f80).portr("DSW3");
	map(0x5f81, 0x5f81).portr("P1");
	map(0x5f82, 0x5f82).portr("P2");
	map(0x5f83, 0x5f83).portr("DSW2");
	map(0x5f84, 0x5f84).portr("DSW1");
	map(0x5f88, 0x5f88).r("watchdog", FUNC(watchdog_timer_device::reset_r)).w(this, FUNC(aliens_state::aliens_coin_counter_w));      /* coin counters */
	map(0x5f8c, 0x5f8c).w(this, FUNC(aliens_state::aliens_sh_irqtrigger_w));                       /* cause interrupt on audio CPU */
	map(0x8000, 0xffff).rom().region("maincpu", 0x28000);                   /* ROM e24_j02.bin */
}

void aliens_state::bank0000_map(address_map &map)
{
	map(0x0000, 0x03ff).ram();
	map(0x0400, 0x07ff).ram().w("palette", FUNC(palette_device::write8)).share("palette");
}

void aliens_state::aliens_sound_map(address_map &map)
{
	map(0x0000, 0x7fff).rom();                                     /* ROM g04_b03.bin */
	map(0x8000, 0x87ff).ram();                                     /* RAM */
	map(0xa000, 0xa001).rw("ymsnd", FUNC(ym2151_device::read), FUNC(ym2151_device::write));
	map(0xc000, 0xc000).r(m_soundlatch, FUNC(generic_latch_8_device::read));
	map(0xe000, 0xe00d).rw(m_k007232, FUNC(k007232_device::read), FUNC(k007232_device::write));
}


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

    Input Ports

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

static INPUT_PORTS_START( aliens )
	PORT_START("DSW1")
	KONAMI_COINAGE_LOC(DEF_STR( Free_Play ), "No Credits", SW1)
	/* "No Credits" = both coin slots open, but no effect on coin counters */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )        PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(    0x03, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPUNUSED_DIPLOC( 0x0004, 0x0004, "SW2:3" )    /* Listed as "Unused" */
	PORT_DIPUNUSED_DIPLOC( 0x0008, 0x0008, "SW2:4" )    /* Listed as "Unused" */
	PORT_DIPUNUSED_DIPLOC( 0x0010, 0x0010, "SW2:5" )    /* Listed as "Unused" */
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )   PORT_DIPLOCATION("SW2:6,7")
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Very_Hard ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )  PORT_DIPLOCATION("SW2:8")
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )  PORT_DIPLOCATION("SW3:1")
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPUNUSED_DIPLOC( 0x02, 0x02, "SW3:2" )        /* Listed as "Unused" */
	PORT_SERVICE_DIPLOC( 0x04, IP_ACTIVE_LOW, "SW3:3" )
	PORT_DIPUNUSED_DIPLOC( 0x08, 0x08, "SW3:4" )        /* Listed as "Unused" */
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("P1")
	KONAMI8_B12_COIN_START(1)

	PORT_START("P2")
	KONAMI8_B12_COIN_START(2)
INPUT_PORTS_END


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

    Machine Driver

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

WRITE8_MEMBER(aliens_state::volume_callback)
{
	m_k007232->set_volume(0, (data & 0x0f) * 0x11, 0);
	m_k007232->set_volume(1, 0, (data >> 4) * 0x11);
}

void aliens_state::machine_start()
{
	m_rombank->configure_entries(0, 24, memregion("maincpu")->base(), 0x2000);
	m_rombank->set_entry(0);
}

void aliens_state::machine_reset()
{
	m_bank0000->set_bank(0);
}

WRITE8_MEMBER( aliens_state::banking_callback )
{
	m_rombank->set_entry(data & 0x1f);
}

MACHINE_CONFIG_START(aliens_state::aliens)

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", KONAMI, XTAL(24'000'000)/2/4)       /* 052001 (verified on pcb) */
	MCFG_CPU_PROGRAM_MAP(aliens_map)
	MCFG_KONAMICPU_LINE_CB(WRITE8(aliens_state, banking_callback))

	MCFG_CPU_ADD("audiocpu", Z80, XTAL(3'579'545))     /* verified on pcb */
	MCFG_CPU_PROGRAM_MAP(aliens_sound_map)

	MCFG_DEVICE_ADD("bank0000", ADDRESS_MAP_BANK, 0)
	MCFG_DEVICE_PROGRAM_MAP(bank0000_map)
	MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_BIG)
	MCFG_ADDRESS_MAP_BANK_DATA_WIDTH(8)
	MCFG_ADDRESS_MAP_BANK_ADDR_WIDTH(11)
	MCFG_ADDRESS_MAP_BANK_STRIDE(0x400)

	MCFG_WATCHDOG_ADD("watchdog")

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_RAW_PARAMS(XTAL(24'000'000)/3, 528, 112, 400, 256, 16, 240) // measured 59.17
//  6MHz dotclock is more realistic, however needs drawing updates. replace when ready
//  MCFG_SCREEN_RAW_PARAMS(XTAL(24'000'000)/4, 396, hbend, hbstart, 256, 16, 240)
	MCFG_SCREEN_UPDATE_DRIVER(aliens_state, screen_update_aliens)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_PALETTE_ADD("palette", 512)
	MCFG_PALETTE_ENABLE_SHADOWS()
	MCFG_PALETTE_FORMAT(xBBBBBGGGGGRRRRR)

	MCFG_DEVICE_ADD("k052109", K052109, 0)
	MCFG_GFX_PALETTE("palette")
	MCFG_K052109_CB(aliens_state, tile_callback)

	MCFG_DEVICE_ADD("k051960", K051960, 0)
	MCFG_GFX_PALETTE("palette")
	MCFG_K051960_SCREEN_TAG("screen")
	MCFG_K051960_CB(aliens_state, sprite_callback)
	MCFG_K051960_IRQ_HANDLER(INPUTLINE("maincpu", KONAMI_IRQ_LINE))

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

	MCFG_GENERIC_LATCH_8_ADD("soundlatch")

	MCFG_YM2151_ADD("ymsnd", XTAL(3'579'545))  /* verified on pcb */
	MCFG_YM2151_PORT_WRITE_HANDLER(WRITE8(aliens_state,aliens_snd_bankswitch_w))
	MCFG_SOUND_ROUTE(0, "mono", 0.60)
	MCFG_SOUND_ROUTE(1, "mono", 0.60)

	MCFG_SOUND_ADD("k007232", K007232, XTAL(3'579'545))    /* verified on pcb */
	MCFG_K007232_PORT_WRITE_HANDLER(WRITE8(aliens_state, volume_callback))
	MCFG_SOUND_ROUTE(0, "mono", 0.20)
	MCFG_SOUND_ROUTE(1, "mono", 0.20)
MACHINE_CONFIG_END


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

  Game ROMs

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

ROM_START( aliens )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_j01.c24", 0x00000, 0x20000, CRC(6a529cd6) SHA1(bff6dee33141d8ed2b2c28813cf49f52dceac364) )
	ROM_LOAD( "875_j02.e24", 0x20000, 0x10000, CRC(56c20971) SHA1(af272e146705e97342466a208c64d823ebc83d83) )

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_b03.g04", 0x00000, 0x08000, CRC(1ac4d283) SHA1(2253f1f39c7edb6cef438b3d97f3af67a1f491ff) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14",  0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) ) /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliens2 )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_n01.c24", 0x00000, 0x20000, CRC(106cf59c) SHA1(78622adc02055d31cd587c83b23a6cde30c9bc22) )
	ROM_LOAD( "875_p02.e24", 0x20000, 0x10000, CRC(4edd707d) SHA1(02b39068e5fd99ecb5b35a586335b65a20fde490) )

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_b03.g04", 0x00000, 0x08000, CRC(1ac4d283) SHA1(2253f1f39c7edb6cef438b3d97f3af67a1f491ff) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */


	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14",  0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) ) /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliens3 )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_w3_1.c24", 0x00000, 0x20000, CRC(3c0006fb) SHA1(e8730d50c358e7321dd676c74368fe44b9bbe5b2) ) /* Needs correct rom label */
	ROM_LOAD( "875_w3_2.e24", 0x20000, 0x10000, CRC(f917f7b5) SHA1(ab95ad40c82f11572bbaa03d76dae35f76bacf0c) ) /* Needs correct rom label */

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_b03.g04", 0x00000, 0x08000, CRC(1ac4d283) SHA1(2253f1f39c7edb6cef438b3d97f3af67a1f491ff) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14", 0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) )  /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliensu )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_n01.c24", 0x00000, 0x20000, CRC(106cf59c) SHA1(78622adc02055d31cd587c83b23a6cde30c9bc22) )
	ROM_LOAD( "875_n02.e24", 0x20000, 0x10000, CRC(24dd612e) SHA1(35bceb3045cd0bd9d107312b371fb60dcf3f1272) )

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_b03.g04", 0x00000, 0x08000, CRC(1ac4d283) SHA1(2253f1f39c7edb6cef438b3d97f3af67a1f491ff) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14", 0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) )  /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliensj )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_m01.c24",  0x00000, 0x20000, CRC(1663d3dc) SHA1(706bdf3daa3bda372d94263f3405d67a7ef8dc69) )
	ROM_LOAD( "875_m02.e24",  0x20000, 0x10000, CRC(54a774e5) SHA1(b6413b2199f863cae1c6fcef766989162cd4b95e) )

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_k03.g04", 0x00000, 0x08000, CRC(bd86264d) SHA1(345fd666daf8a29ef314b14306c1a976cb159bed) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14", 0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) )  /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliensj2 )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_m01.c24",  0x00000, 0x20000, CRC(1663d3dc) SHA1(706bdf3daa3bda372d94263f3405d67a7ef8dc69) )
	ROM_LOAD( "875_j2_2.e24", 0x20000, 0x10000, CRC(4bb84952) SHA1(ca40a7181f11d6c34c26b65f8d4a1d1df2c7fb48) ) /* Needs correct rom label */

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_k03.g04", 0x00000, 0x08000, CRC(bd86264d) SHA1(345fd666daf8a29ef314b14306c1a976cb159bed) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14", 0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) )  /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

ROM_START( aliensa )
	ROM_REGION( 0x30000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "875_m01.c24", 0x00000, 0x20000, CRC(1663d3dc) SHA1(706bdf3daa3bda372d94263f3405d67a7ef8dc69) )
	ROM_LOAD( "875_r02.e24", 0x20000, 0x10000, CRC(973e4f11) SHA1(a4f65ef4c84b1dcac591dc348ebbb96d35ef5f93) )

	ROM_REGION( 0x08000, "audiocpu", 0 )
	ROM_LOAD( "875_k03.g04", 0x00000, 0x08000, CRC(bd86264d) SHA1(345fd666daf8a29ef314b14306c1a976cb159bed) )

	ROM_REGION( 0x200000, "k052109", 0 )    /* tiles */
	ROM_LOAD32_WORD( "875b11.k13", 0x000000, 0x80000, CRC(89c5c885) SHA1(02a1581579b6ef816e04bec312a7b3ae7c7e84f8) )
	ROM_LOAD32_WORD( "875b12.k19", 0x000002, 0x80000, CRC(ea6bdc17) SHA1(a7c22370f8adc5b479283f1ff831f493df78282f) )
	ROM_LOAD32_WORD( "875b07.j13", 0x100000, 0x40000, CRC(e9c56d66) SHA1(1f58949d5391aef002a6e1ee7034e57bf99cee61) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b08.j19", 0x100002, 0x40000, CRC(f9387966) SHA1(470ecc4a5a3edd08d5e0ab10b0c590db1968fb0a) )
	/* second half empty */

	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
	/* second half empty */
	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
	/* second half empty */

	ROM_REGION( 0x0100, "proms", 0 )
	ROM_LOAD( "821a08.h14", 0x0000, 0x0100, CRC(7da55800) SHA1(3826f73569c8ae0431510a355bdfa082152b74a5) )  /* priority encoder (not used) */

	ROM_REGION( 0x40000, "k007232", 0 ) /* samples for 007232 */
	ROM_LOAD( "875b04.e05",  0x00000, 0x40000, CRC(4e209ac8) SHA1(09d9eaae61bfd04bf318555ccd44d7371571d86d) )
ROM_END

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

  Game driver(s)

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

GAME( 1990, aliens,   0,      aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (World set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliens2,  aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (World set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliens3,  aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (World set 3)", MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliensu,  aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (US)",          MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliensj,  aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (Japan set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliensj2, aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (Japan set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1990, aliensa,  aliens, aliens, aliens, aliens_state, 0, ROT0, "Konami", "Aliens (Asia)",        MACHINE_SUPPORTS_SAVE )