summaryrefslogtreecommitdiffstatshomepage
path: root/trunk/src/mame/drivers/retofinv.c
diff options
context:
space:
mode:
Diffstat (limited to 'trunk/src/mame/drivers/retofinv.c')
-rw-r--r--trunk/src/mame/drivers/retofinv.c502
1 files changed, 502 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/retofinv.c b/trunk/src/mame/drivers/retofinv.c
new file mode 100644
index 00000000000..1ef044b102a
--- /dev/null
+++ b/trunk/src/mame/drivers/retofinv.c
@@ -0,0 +1,502 @@
+/***************************************************************************
+
+Return of the Invaders
+
+driver by Jarek Parchanski, Andrea Mazzoleni
+
+the game was developed by UPL for Taito.
+
+Notes:
+- I derived the ROM names from the board diagram in the manual. There might
+ be some mistakes. The diagram actually shows 4 PROMs on the ROM board
+ (a37-17, -18, -19 and -20), while we only have one: 82s191n. I think it's
+ possible that the single 2KB PROM replaced four 512B PROMs in a later
+ revision of the board.
+
+- The video hardware (especially the sprite system) is quite obviously derived
+ from a Namco design.
+
+- Two bits of tilemap RAM might be used for tile flip, but the game never sets
+ them so we can't verify without schematics.
+
+- We don't have a dump of the original MCU. We have a dump from a bootleg MCU,
+ which however cannot be the same as the original. The game works fine with it,
+ but only when the flip screen dip switch is set to off. If it is set to on, it
+ hangs when starting a game because the mcu doesn't answer a command.
+ See MCU code at $206 and $435: when the dip switch is on, the lda #$00 should
+ be replaced by lda #$01.
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/m6805/m6805.h"
+#include "sound/sn76496.h"
+#include "includes/retofinv.h"
+
+
+
+static WRITE8_HANDLER( cpu1_reset_w )
+{
+ cputag_set_input_line(space->machine(), "sub", INPUT_LINE_RESET, data ? CLEAR_LINE : ASSERT_LINE);
+}
+
+static WRITE8_HANDLER( cpu2_reset_w )
+{
+ cputag_set_input_line(space->machine(), "audiocpu", INPUT_LINE_RESET, data ? CLEAR_LINE : ASSERT_LINE);
+}
+
+static WRITE8_HANDLER( mcu_reset_w )
+{
+ /* the bootlegs don't have a MCU, so make sure it's there before trying to reset it */
+ if (space->machine().device("68705") != NULL)
+ cputag_set_input_line(space->machine(), "68705", INPUT_LINE_RESET, data ? CLEAR_LINE : ASSERT_LINE);
+}
+
+static WRITE8_HANDLER( cpu2_m6000_w )
+{
+ retofinv_state *state = space->machine().driver_data<retofinv_state>();
+ state->m_cpu2_m6000 = data;
+}
+
+static READ8_HANDLER( cpu0_mf800_r )
+{
+ retofinv_state *state = space->machine().driver_data<retofinv_state>();
+ return state->m_cpu2_m6000;
+}
+
+static WRITE8_HANDLER( soundcommand_w )
+{
+ soundlatch_w(space, 0, data);
+ cputag_set_input_line(space->machine(), "audiocpu", 0, HOLD_LINE);
+}
+
+static WRITE8_HANDLER( irq0_ack_w )
+{
+ int bit = data & 1;
+
+ cpu_interrupt_enable(space->machine().device("maincpu"), bit);
+ if (!bit)
+ cputag_set_input_line(space->machine(), "maincpu", 0, CLEAR_LINE);
+}
+
+static WRITE8_HANDLER( irq1_ack_w )
+{
+ int bit = data & 1;
+
+ cpu_interrupt_enable(space->machine().device("sub"), bit);
+ if (!bit)
+ cputag_set_input_line(space->machine(), "sub", 0, CLEAR_LINE);
+}
+
+static WRITE8_HANDLER( coincounter_w )
+{
+ coin_counter_w(space->machine(), 0, data & 1);
+}
+
+static WRITE8_HANDLER( coinlockout_w )
+{
+ coin_lockout_w(space->machine(), 0,~data & 1);
+}
+
+
+static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x5fff) AM_ROM
+ AM_RANGE(0x7fff, 0x7fff) AM_WRITE(coincounter_w)
+ AM_RANGE(0x7b00, 0x7bff) AM_ROM /* space for diagnostic ROM? The code looks */
+ /* for a string here, and jumps if it's present */
+ AM_RANGE(0x8000, 0x87ff) AM_RAM_WRITE(retofinv_fg_videoram_w) AM_SHARE("share2") AM_BASE_MEMBER(retofinv_state, m_fg_videoram)
+ AM_RANGE(0x8800, 0x9fff) AM_RAM AM_SHARE("share1") AM_BASE_MEMBER(retofinv_state, m_sharedram)
+ AM_RANGE(0xa000, 0xa7ff) AM_RAM_WRITE(retofinv_bg_videoram_w) AM_SHARE("share3") AM_BASE_MEMBER(retofinv_state, m_bg_videoram)
+ AM_RANGE(0xb800, 0xb802) AM_WRITE(retofinv_gfx_ctrl_w)
+ AM_RANGE(0xc000, 0xc000) AM_READ_PORT("P1")
+ AM_RANGE(0xc001, 0xc001) AM_READ_PORT("P2")
+ AM_RANGE(0xc002, 0xc002) AM_READNOP /* bit 7 must be 0, otherwise game resets */
+ AM_RANGE(0xc003, 0xc003) AM_READ(retofinv_mcu_status_r)
+ AM_RANGE(0xc004, 0xc004) AM_READ_PORT("SYSTEM")
+ AM_RANGE(0xc005, 0xc005) AM_READ_PORT("DSW1")
+ AM_RANGE(0xc006, 0xc006) AM_READ_PORT("DSW2")
+ AM_RANGE(0xc007, 0xc007) AM_READ_PORT("DSW3")
+ AM_RANGE(0xc800, 0xc800) AM_WRITE(irq0_ack_w)
+ AM_RANGE(0xc801, 0xc801) AM_WRITE(coinlockout_w)
+ AM_RANGE(0xc802, 0xc802) AM_WRITE(cpu2_reset_w)
+ AM_RANGE(0xc803, 0xc803) AM_WRITE(mcu_reset_w)
+// AM_RANGE(0xc804, 0xc804) AM_WRITE(irq1_ack_w) // presumably (meaning memory map is shared with cpu 1)
+ AM_RANGE(0xc805, 0xc805) AM_WRITE(cpu1_reset_w)
+ AM_RANGE(0xd000, 0xd000) AM_WRITE(watchdog_reset_w)
+ AM_RANGE(0xd800, 0xd800) AM_WRITE(soundcommand_w)
+ AM_RANGE(0xe000, 0xe000) AM_READ(retofinv_mcu_r)
+ AM_RANGE(0xe800, 0xe800) AM_WRITE(retofinv_mcu_w)
+ AM_RANGE(0xf800, 0xf800) AM_READ(cpu0_mf800_r)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sub_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x8000, 0x87ff) AM_RAM_WRITE(retofinv_fg_videoram_w) AM_SHARE("share2")
+ AM_RANGE(0x8800, 0x9fff) AM_RAM AM_SHARE("share1")
+ AM_RANGE(0xa000, 0xa7ff) AM_RAM_WRITE(retofinv_bg_videoram_w) AM_SHARE("share3")
+ AM_RANGE(0xc804, 0xc804) AM_WRITE(irq1_ack_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x2000, 0x27ff) AM_RAM
+ AM_RANGE(0x4000, 0x4000) AM_READ(soundlatch_r)
+ AM_RANGE(0x6000, 0x6000) AM_WRITE(cpu2_m6000_w)
+ AM_RANGE(0x8000, 0x8000) AM_DEVWRITE("sn1", sn76496_w)
+ AM_RANGE(0xa000, 0xa000) AM_DEVWRITE("sn2", sn76496_w)
+ AM_RANGE(0xe000, 0xffff) AM_ROM /* space for diagnostic ROM */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( mcu_map, AS_PROGRAM, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0x7ff)
+ AM_RANGE(0x0000, 0x0000) AM_READWRITE(retofinv_68705_portA_r, retofinv_68705_portA_w)
+ AM_RANGE(0x0001, 0x0001) AM_READWRITE(retofinv_68705_portB_r, retofinv_68705_portB_w)
+ AM_RANGE(0x0002, 0x0002) AM_READWRITE(retofinv_68705_portC_r, retofinv_68705_portC_w)
+ AM_RANGE(0x0004, 0x0004) AM_WRITE(retofinv_68705_ddrA_w)
+ AM_RANGE(0x0005, 0x0005) AM_WRITE(retofinv_68705_ddrB_w)
+ AM_RANGE(0x0006, 0x0006) AM_WRITE(retofinv_68705_ddrC_w)
+ AM_RANGE(0x0010, 0x007f) AM_RAM
+ AM_RANGE(0x0080, 0x07ff) AM_ROM
+ADDRESS_MAP_END
+
+
+
+static INPUT_PORTS_START( retofinv )
+ 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_TILT )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SERVICE1 )
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH,IPT_COIN1 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH,IPT_COIN2 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("P1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )
+
+ PORT_START("P2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Bonus_Life ) )
+ PORT_DIPSETTING( 0x03, "30k, 80k & every 80k" )
+ PORT_DIPSETTING( 0x02, "30k, 80k" )
+ PORT_DIPSETTING( 0x01, "30k" )
+ PORT_DIPSETTING( 0x00, DEF_STR( None ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Free_Play ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x18, 0x08, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x18, "1" )
+ PORT_DIPSETTING( 0x10, "2" )
+ PORT_DIPSETTING( 0x08, "3" )
+ PORT_DIPSETTING( 0x00, "5" )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unused ) ) // according to manual
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( Cocktail ) )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x0f, 0x00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x0f, DEF_STR( 9C_1C ) )
+ PORT_DIPSETTING( 0x0e, DEF_STR( 8C_1C ) )
+ PORT_DIPSETTING( 0x0d, DEF_STR( 7C_1C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x0b, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x0a, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x09, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 1C_8C ) )
+ PORT_DIPNAME( 0xf0, 0x00, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0xf0, DEF_STR( 9C_1C ) )
+ PORT_DIPSETTING( 0xe0, DEF_STR( 8C_1C ) )
+ PORT_DIPSETTING( 0xd0, DEF_STR( 7C_1C ) )
+ PORT_DIPSETTING( 0xc0, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0xb0, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0xa0, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x90, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x50, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x60, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x70, DEF_STR( 1C_8C ) )
+
+ PORT_START("DSW3")
+ PORT_DIPNAME( 0x01, 0x01, "Push Start to Skip Stage (Cheat)")
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unused ) ) // according to manual
+ PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unused ) ) // according to manual
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unused ) ) // according to manual
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x10, 0x10, "Coin Per Play Display" )
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x20, 0x20, "Year Display" )
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x40, 0x40, "Invulnerability (Cheat)")
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Coinage ) ) // unused according to manual
+ PORT_DIPSETTING( 0x80, "A and B" )
+ PORT_DIPSETTING( 0x00, "A only" )
+INPUT_PORTS_END
+
+static INPUT_PORTS_START( retofin2 )
+ PORT_INCLUDE( retofinv )
+
+ PORT_MODIFY( "DSW1" )
+ PORT_DIPNAME( 0x18, 0x08, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x18, "1" )
+ PORT_DIPSETTING( 0x10, "2" )
+ PORT_DIPSETTING( 0x08, "3" )
+ PORT_DIPSETTING( 0x00, "4" )
+INPUT_PORTS_END
+
+
+
+static const gfx_layout charlayout =
+{
+ 8,8,
+ RGN_FRAC(1,2), /* bottom half of ROM is empty */
+ 1,
+ { 0 },
+ { 7, 6, 5, 4, 3, 2, 1, 0 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
+ 8*8
+};
+
+static const gfx_layout bglayout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 4,
+ { 0, RGN_FRAC(1,2)+4, RGN_FRAC(1,2), 4 },
+ { 0, 1, 2, 3, 8*8, 8*8+1, 8*8+2, 8*8+3 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
+ 16*8
+};
+
+static const gfx_layout spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 4,
+ { 0, RGN_FRAC(1,2)+4, RGN_FRAC(1,2), 4 },
+ { 0, 1, 2, 3, 8*8, 8*8+1, 8*8+2, 8*8+3, 16*8+0, 16*8+1, 16*8+2, 16*8+3,
+ 24*8+0, 24*8+1, 24*8+2, 24*8+3 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
+ 32*8, 33*8, 34*8, 35*8, 36*8, 37*8, 38*8, 39*8 },
+ 64*8
+};
+
+static GFXDECODE_START( retofinv )
+ GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 256 )
+ GFXDECODE_ENTRY( "gfx2", 0, spritelayout, 256*2, 64 )
+ GFXDECODE_ENTRY( "gfx3", 0, bglayout, 64*16+256*2, 64 )
+GFXDECODE_END
+
+
+
+static MACHINE_CONFIG_START( retofinv, retofinv_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, 18432000/6) /* 3.072 MHz? */
+ MCFG_CPU_PROGRAM_MAP(main_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_assert)
+
+ MCFG_CPU_ADD("sub", Z80, 18432000/6) /* 3.072 MHz? */
+ MCFG_CPU_PROGRAM_MAP(sub_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_assert)
+
+ MCFG_CPU_ADD("audiocpu", Z80, 18432000/6) /* 3.072 MHz? */
+ MCFG_CPU_PROGRAM_MAP(sound_map)
+ MCFG_CPU_PERIODIC_INT(nmi_line_pulse,2*60)
+
+ MCFG_CPU_ADD("68705", M68705,18432000/6) /* 3.072 MHz? */
+ MCFG_CPU_PROGRAM_MAP(mcu_map)
+
+ MCFG_QUANTUM_TIME(attotime::from_hz(6000)) /* 100 CPU slices per frame - enough for the sound CPU to read all commands */
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(36*8, 28*8)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
+ MCFG_SCREEN_UPDATE(retofinv)
+
+ MCFG_GFXDECODE(retofinv)
+ MCFG_PALETTE_LENGTH(256*2+64*16+64*16)
+
+ MCFG_PALETTE_INIT(retofinv)
+ MCFG_VIDEO_START(retofinv)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("sn1", SN76496, 18432000/6)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
+
+ MCFG_SOUND_ADD("sn2", SN76496, 18432000/6)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
+MACHINE_CONFIG_END
+
+
+/* bootleg has no mcu */
+static MACHINE_CONFIG_DERIVED( retofinb, retofinv )
+ MCFG_DEVICE_REMOVE("68705")
+
+MACHINE_CONFIG_END
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( retofinv )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "a37-03.70", 0x0000, 0x2000, CRC(eae7459d) SHA1(c105f6adbd4c09decaad68ed13163d8f9b55e646) )
+ ROM_LOAD( "a37-02.71", 0x2000, 0x2000, CRC(72895e37) SHA1(42fb904338e9f92a79d587eac401d456e7fb6e55) )
+ ROM_LOAD( "a37-01.72", 0x4000, 0x2000, CRC(505dd20b) SHA1(3a34b1515bb834ff9e2d86b0b43a752d9619307b) )
+
+ ROM_REGION( 0x10000, "sub", 0 )
+ ROM_LOAD( "a37-04.62", 0x0000, 0x2000, CRC(d2899cc1) SHA1(fdbec743b06f4cdcc134ef863e4e71337ad0b2c5) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "a37-05.17", 0x0000, 0x2000, CRC(9025abea) SHA1(2f03e8572f23624d7cd1215a55109e97fd66e271) )
+
+ ROM_REGION( 0x0800, "68705", 0 ) /* 8k for the microcontroller */
+ /* the only available dump is from a bootleg board, and is not the real thing (see notes at top of driver) */
+ ROM_LOAD( "a37-09.37", 0x00000, 0x0800, BAD_DUMP CRC(79bd6ded) SHA1(4967e95b4461c1bfb4e933d1804677799014f77b) )
+
+ ROM_REGION( 0x02000, "gfx1", 0 )
+ ROM_LOAD( "a37-16.61", 0x0000, 0x2000, CRC(4e3f501c) SHA1(2d832f4038ae65bfdeedfab870f6f1176ec6b676) )
+
+ ROM_REGION( 0x08000, "gfx2", 0 )
+ ROM_LOAD( "a37-10.8", 0x0000, 0x2000, CRC(6afdeec8) SHA1(782fe0a8aea48c3c270318b7ba011fc6fce0db7a) )
+ ROM_LOAD( "a37-11.9", 0x2000, 0x2000, CRC(d3dc9da3) SHA1(0d98d6e993b5a4845a23802751023b7a593dce29) )
+ ROM_LOAD( "a37-12.10", 0x4000, 0x2000, CRC(d10b2eed) SHA1(3809a0adf935a119f9ee0d4c24f1456c35d2a6fa) )
+ ROM_LOAD( "a37-13.11", 0x6000, 0x2000, CRC(00ca6b3d) SHA1(08ce5b13d5ebc79cc803949f4ba9e630e6cd92b8) )
+
+ ROM_REGION( 0x04000, "gfx3", 0 )
+ ROM_LOAD( "a37-14.55", 0x0000, 0x2000, CRC(ef7f8651) SHA1(2d91057501e5e9c4255e0d55fff0d99c2a5be7e8) )
+ ROM_LOAD( "a37-15.56", 0x2000, 0x2000, CRC(03b40905) SHA1(c10d87796e8a6e6a2a37c6fb713821cc87299cc8) )
+
+ ROM_REGION( 0x0b00, "proms", 0 )
+ ROM_LOAD( "a37-06.13", 0x0000, 0x0100, CRC(e9643b8b) SHA1(7bbb92a42e7c3effb701fc7b2c24f2470f31b063) ) /* palette red bits */
+ ROM_LOAD( "a37-07.4", 0x0100, 0x0100, CRC(e8f34e11) SHA1(8f438561b8d46ffff00747ed8baf0ebb6a081615) ) /* palette green bits */
+ ROM_LOAD( "a37-08.3", 0x0200, 0x0100, CRC(50030af0) SHA1(e748ae0b8702b7d20fb65c254dceee23246b3d13) ) /* palette blue bits */
+ ROM_LOAD( "82s191n", 0x0300, 0x0800, CRC(93c891e3) SHA1(643a0107717b6a434432dda73a0102e6e8adbca7) ) /* lookup table */
+ROM_END
+
+ROM_START( retofinv1 )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "roi.02", 0x0000, 0x2000, CRC(d98fd462) SHA1(fd35e13b7dee58639a01b040b8f84d42bb40b633) )
+ ROM_LOAD( "roi.01b", 0x2000, 0x2000, CRC(3379f930) SHA1(c67d687a10b6240bd6e2fbdb15e1b7d276e6fc07) )
+ ROM_LOAD( "roi.01", 0x4000, 0x2000, CRC(57679062) SHA1(4f121101ab1cb8de8e693e5984ef23fa587fe696) )
+
+ ROM_REGION( 0x10000, "sub", 0 )
+ ROM_LOAD( "a37-04.62", 0x0000, 0x2000, CRC(d2899cc1) SHA1(fdbec743b06f4cdcc134ef863e4e71337ad0b2c5) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "a37-05.17", 0x0000, 0x2000, CRC(9025abea) SHA1(2f03e8572f23624d7cd1215a55109e97fd66e271) )
+
+ ROM_REGION( 0x02000, "gfx1", 0 )
+ ROM_LOAD( "a37-16.61", 0x0000, 0x2000, CRC(4e3f501c) SHA1(2d832f4038ae65bfdeedfab870f6f1176ec6b676) )
+
+ ROM_REGION( 0x08000, "gfx2", 0 )
+ ROM_LOAD( "a37-10.8", 0x0000, 0x2000, CRC(6afdeec8) SHA1(782fe0a8aea48c3c270318b7ba011fc6fce0db7a) )
+ ROM_LOAD( "a37-11.9", 0x2000, 0x2000, CRC(d3dc9da3) SHA1(0d98d6e993b5a4845a23802751023b7a593dce29) )
+ ROM_LOAD( "a37-12.10", 0x4000, 0x2000, CRC(d10b2eed) SHA1(3809a0adf935a119f9ee0d4c24f1456c35d2a6fa) )
+ ROM_LOAD( "a37-13.11", 0x6000, 0x2000, CRC(00ca6b3d) SHA1(08ce5b13d5ebc79cc803949f4ba9e630e6cd92b8) )
+
+ ROM_REGION( 0x04000, "gfx3", 0 )
+ ROM_LOAD( "a37-14.55", 0x0000, 0x2000, CRC(ef7f8651) SHA1(2d91057501e5e9c4255e0d55fff0d99c2a5be7e8) )
+ ROM_LOAD( "a37-15.56", 0x2000, 0x2000, CRC(03b40905) SHA1(c10d87796e8a6e6a2a37c6fb713821cc87299cc8) )
+
+ ROM_REGION( 0x0b00, "proms", 0 )
+ ROM_LOAD( "a37-06.13", 0x0000, 0x0100, CRC(e9643b8b) SHA1(7bbb92a42e7c3effb701fc7b2c24f2470f31b063) ) /* palette red bits */
+ ROM_LOAD( "a37-07.4", 0x0100, 0x0100, CRC(e8f34e11) SHA1(8f438561b8d46ffff00747ed8baf0ebb6a081615) ) /* palette green bits */
+ ROM_LOAD( "a37-08.3", 0x0200, 0x0100, CRC(50030af0) SHA1(e748ae0b8702b7d20fb65c254dceee23246b3d13) ) /* palette blue bits */
+ ROM_LOAD( "82s191n", 0x0300, 0x0800, CRC(93c891e3) SHA1(643a0107717b6a434432dda73a0102e6e8adbca7) ) /* lookup table */
+ROM_END
+
+ROM_START( retofinv2 )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "ri-c.1e", 0x0000, 0x2000, CRC(e3c31260) SHA1(cc8774251c567da2e4a54091223927c95f497fe8) )
+ ROM_LOAD( "roi.01b", 0x2000, 0x2000, CRC(3379f930) SHA1(c67d687a10b6240bd6e2fbdb15e1b7d276e6fc07) )
+ ROM_LOAD( "ri-a.1c", 0x4000, 0x2000, CRC(3ae7c530) SHA1(5d1be375494fa07124071067661c4bfc2d724d54) )
+
+ ROM_REGION( 0x10000, "sub", 0 )
+ ROM_LOAD( "a37-04.62", 0x0000, 0x2000, CRC(d2899cc1) SHA1(fdbec743b06f4cdcc134ef863e4e71337ad0b2c5) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "a37-05.17", 0x0000, 0x2000, CRC(9025abea) SHA1(2f03e8572f23624d7cd1215a55109e97fd66e271) )
+
+ ROM_REGION( 0x02000, "gfx1", 0 )
+ ROM_LOAD( "a37-16.61", 0x0000, 0x2000, CRC(4e3f501c) SHA1(2d832f4038ae65bfdeedfab870f6f1176ec6b676) )
+
+ ROM_REGION( 0x08000, "gfx2", 0 )
+ ROM_LOAD( "a37-10.8", 0x0000, 0x2000, CRC(6afdeec8) SHA1(782fe0a8aea48c3c270318b7ba011fc6fce0db7a) )
+ ROM_LOAD( "a37-11.9", 0x2000, 0x2000, CRC(d3dc9da3) SHA1(0d98d6e993b5a4845a23802751023b7a593dce29) )
+ ROM_LOAD( "a37-12.10", 0x4000, 0x2000, CRC(d10b2eed) SHA1(3809a0adf935a119f9ee0d4c24f1456c35d2a6fa) )
+ ROM_LOAD( "a37-13.11", 0x6000, 0x2000, CRC(00ca6b3d) SHA1(08ce5b13d5ebc79cc803949f4ba9e630e6cd92b8) )
+
+ ROM_REGION( 0x04000, "gfx3", 0 )
+ ROM_LOAD( "a37-14.55", 0x0000, 0x2000, CRC(ef7f8651) SHA1(2d91057501e5e9c4255e0d55fff0d99c2a5be7e8) )
+ ROM_LOAD( "a37-15.56", 0x2000, 0x2000, CRC(03b40905) SHA1(c10d87796e8a6e6a2a37c6fb713821cc87299cc8) )
+
+ ROM_REGION( 0x0b00, "proms", 0 )
+ ROM_LOAD( "a37-06.13", 0x0000, 0x0100, CRC(e9643b8b) SHA1(7bbb92a42e7c3effb701fc7b2c24f2470f31b063) ) /* palette red bits */
+ ROM_LOAD( "a37-07.4", 0x0100, 0x0100, CRC(e8f34e11) SHA1(8f438561b8d46ffff00747ed8baf0ebb6a081615) ) /* palette green bits */
+ ROM_LOAD( "a37-08.3", 0x0200, 0x0100, CRC(50030af0) SHA1(e748ae0b8702b7d20fb65c254dceee23246b3d13) ) /* palette blue bits */
+ ROM_LOAD( "82s191n", 0x0300, 0x0800, CRC(93c891e3) SHA1(643a0107717b6a434432dda73a0102e6e8adbca7) ) /* lookup table */
+ROM_END
+
+
+
+GAME( 1985, retofinv, 0, retofinv, retofinv, 0, ROT90, "Taito Corporation", "Return of the Invaders", 0 )
+GAME( 1985, retofinv1,retofinv, retofinb, retofinv, 0, ROT90, "bootleg", "Return of the Invaders (bootleg set 1)", 0 )
+GAME( 1985, retofinv2,retofinv, retofinb, retofin2, 0, ROT90, "bootleg", "Return of the Invaders (bootleg set 2)", 0 )