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Diffstat (limited to 'trunk/src/mame/drivers/espial.c')
-rw-r--r--trunk/src/mame/drivers/espial.c454
1 files changed, 454 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/espial.c b/trunk/src/mame/drivers/espial.c
new file mode 100644
index 00000000000..8028958234c
--- /dev/null
+++ b/trunk/src/mame/drivers/espial.c
@@ -0,0 +1,454 @@
+/***************************************************************************
+
+ Espial hardware games
+
+Espial: The Orca logo is displayed, but looks to be "blacked out" via the
+ color proms by having 0x1c & 0x1d set to black.
+
+TODO:
+- merge with zodiack.c
+
+Stephh's notes (based on the games Z80 code and some tests) :
+
+1) 'espial*'
+
+ - The games read both players controls for player 2 when "Cabinet" is set
+ to "Upright" (code at 0x0321).
+ - The games read both buttons status regardless of settings. They are
+ then comnbined if Dip Switch is set to "1" (code at 0x32a).
+ - The "CRE." displayed at the bottom right of the screen is in fact
+ not really the number of credits (especially when coinage isn't 1C_1C)
+ as it relies on a transformation of real number of credits (stored at
+ 0x5802) based on settings (coins needed stored at 0x5806 and credits
+ awarded at 0x5804). Check code at 0x080b which displays the odd value.
+
+2) 'netwars'
+
+ - The game reads both players controls for player 2 when "Cabinet" is set
+ to "Upright" (code at 0x038e).
+ - The "CREDIT" displayed at the bottom right of the screen is in fact
+ not really the number of credits (especially when coinage isn't 1C_1C)
+ as it relies on a transformation of real number of credits (stored at
+ 0x5802) based on settings (coins needed stored at 0x5806 and credits
+ awarded at 0x5804). Check code at 0x0147 which displays the odd value.
+ - When you get a perfect in the bonus game, you are only awarded 1000 points
+ even if the game tells you that you have been awarded 10000 points.
+
+***************************************************************************/
+
+#include "emu.h"
+#include "includes/espial.h"
+#include "cpu/z80/z80.h"
+#include "sound/ay8910.h"
+
+
+
+
+static MACHINE_RESET( espial )
+{
+ espial_state *state = machine.driver_data<espial_state>();
+
+ state->m_flipscreen = 0;
+
+ state->m_main_nmi_enabled = FALSE;
+ state->m_sound_nmi_enabled = FALSE;
+}
+
+static MACHINE_START( espial )
+{
+ espial_state *state = machine.driver_data<espial_state>();
+
+ state->m_maincpu = machine.device("maincpu");
+ state->m_audiocpu = machine.device("audiocpu");
+
+ //state_save_register_global_array(machine, mcu_out[1]);
+ state->save_item(NAME(state->m_sound_nmi_enabled));
+}
+
+
+WRITE8_MEMBER(espial_state::espial_master_interrupt_mask_w)
+{
+ m_main_nmi_enabled = ~(data & 1);
+}
+
+
+WRITE8_MEMBER(espial_state::espial_sound_nmi_mask_w)
+{
+ m_sound_nmi_enabled = data & 1;
+}
+
+static TIMER_DEVICE_CALLBACK( espial_scanline )
+{
+ espial_state *state = timer.machine().driver_data<espial_state>();
+ int scanline = param;
+
+ if(scanline == 240 && state->m_main_nmi_enabled) // vblank-out irq
+ cputag_set_input_line(timer.machine(), "maincpu", INPUT_LINE_NMI, PULSE_LINE);
+
+ if(scanline == 16) // timer irq, checks soundlatch port then updates some sound related work RAM buffers
+ cputag_set_input_line(timer.machine(), "maincpu", 0, HOLD_LINE);
+}
+
+
+INTERRUPT_GEN( espial_sound_nmi_gen )
+{
+ espial_state *state = device->machine().driver_data<espial_state>();
+
+ if (state->m_sound_nmi_enabled)
+ nmi_line_pulse(device);
+}
+
+
+WRITE8_MEMBER(espial_state::espial_master_soundlatch_w)
+{
+ soundlatch_byte_w(space, offset, data);
+ device_set_input_line(m_audiocpu, 0, HOLD_LINE);
+}
+
+
+static ADDRESS_MAP_START( espial_map, AS_PROGRAM, 8, espial_state )
+ AM_RANGE(0x0000, 0x4fff) AM_ROM
+ AM_RANGE(0x5800, 0x5fff) AM_RAM
+ AM_RANGE(0x6081, 0x6081) AM_READ_PORT("IN0")
+ AM_RANGE(0x6082, 0x6082) AM_READ_PORT("DSW1")
+ AM_RANGE(0x6083, 0x6083) AM_READ_PORT("IN1")
+ AM_RANGE(0x6084, 0x6084) AM_READ_PORT("IN2")
+ AM_RANGE(0x6090, 0x6090) AM_READ(soundlatch2_byte_r) AM_WRITE(espial_master_soundlatch_w)
+ AM_RANGE(0x7000, 0x7000) AM_READWRITE(watchdog_reset_r, watchdog_reset_w)
+ AM_RANGE(0x7100, 0x7100) AM_WRITE(espial_master_interrupt_mask_w)
+ AM_RANGE(0x7200, 0x7200) AM_WRITE(espial_flipscreen_w)
+ AM_RANGE(0x8000, 0x801f) AM_RAM AM_SHARE("spriteram_1")
+ AM_RANGE(0x8020, 0x803f) AM_READONLY
+ AM_RANGE(0x8400, 0x87ff) AM_RAM_WRITE(espial_videoram_w) AM_SHARE("videoram")
+ AM_RANGE(0x8800, 0x880f) AM_WRITEONLY AM_SHARE("spriteram_3")
+ AM_RANGE(0x8c00, 0x8fff) AM_RAM_WRITE(espial_attributeram_w) AM_SHARE("attributeram")
+ AM_RANGE(0x9000, 0x901f) AM_RAM AM_SHARE("spriteram_2")
+ AM_RANGE(0x9020, 0x903f) AM_RAM_WRITE(espial_scrollram_w) AM_SHARE("scrollram")
+ AM_RANGE(0x9400, 0x97ff) AM_RAM_WRITE(espial_colorram_w) AM_SHARE("colorram")
+ AM_RANGE(0xc000, 0xcfff) AM_ROM
+ADDRESS_MAP_END
+
+
+/* there are a lot of unmapped reads from all over memory as the
+ code uses POP instructions in a delay loop */
+static ADDRESS_MAP_START( netwars_map, AS_PROGRAM, 8, espial_state )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x5800, 0x5fff) AM_RAM
+ AM_RANGE(0x6081, 0x6081) AM_READ_PORT("IN0")
+ AM_RANGE(0x6082, 0x6082) AM_READ_PORT("DSW1")
+ AM_RANGE(0x6083, 0x6083) AM_READ_PORT("IN1")
+ AM_RANGE(0x6084, 0x6084) AM_READ_PORT("IN2")
+ AM_RANGE(0x6090, 0x6090) AM_READ(soundlatch2_byte_r) AM_WRITE(espial_master_soundlatch_w)
+ AM_RANGE(0x7000, 0x7000) AM_READWRITE(watchdog_reset_r, watchdog_reset_w)
+ AM_RANGE(0x7100, 0x7100) AM_WRITE(espial_master_interrupt_mask_w)
+ AM_RANGE(0x7200, 0x7200) AM_WRITE(espial_flipscreen_w)
+ AM_RANGE(0x8000, 0x801f) AM_RAM AM_SHARE("spriteram_1")
+ AM_RANGE(0x8000, 0x87ff) AM_RAM_WRITE(espial_videoram_w) AM_SHARE("videoram")
+ AM_RANGE(0x8800, 0x880f) AM_RAM AM_SHARE("spriteram_3")
+ AM_RANGE(0x8800, 0x8fff) AM_RAM_WRITE(espial_attributeram_w) AM_SHARE("attributeram")
+ AM_RANGE(0x9000, 0x901f) AM_RAM AM_SHARE("spriteram_2")
+ AM_RANGE(0x9020, 0x903f) AM_RAM_WRITE(espial_scrollram_w) AM_SHARE("scrollram")
+ AM_RANGE(0x9000, 0x97ff) AM_RAM_WRITE(espial_colorram_w) AM_SHARE("colorram")
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( espial_sound_map, AS_PROGRAM, 8, espial_state )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x2000, 0x23ff) AM_RAM
+ AM_RANGE(0x4000, 0x4000) AM_WRITE(espial_sound_nmi_mask_w)
+ AM_RANGE(0x6000, 0x6000) AM_READWRITE(soundlatch_byte_r, soundlatch2_byte_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( espial_sound_io_map, AS_IO, 8, espial_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x01) AM_DEVWRITE_LEGACY("aysnd", ay8910_address_data_w)
+ADDRESS_MAP_END
+
+
+/* verified from Z80 code */
+static INPUT_PORTS_START( espial )
+ PORT_START("IN0")
+ PORT_DIPNAME( 0x01, 0x00, "Number of Buttons" )
+ PORT_DIPSETTING( 0x01, "1" )
+ PORT_DIPSETTING( 0x00, "2" )
+ PORT_DIPNAME( 0x02, 0x02, "Enemy Bullets Vulnerable" ) /* you can shoot bullets */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( On ) )
+ PORT_DIPUNUSED( 0x04, IP_ACTIVE_HIGH )
+ PORT_DIPUNUSED( 0x08, IP_ACTIVE_HIGH )
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON2 )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "3" )
+ PORT_DIPSETTING( 0x01, "4" )
+ PORT_DIPSETTING( 0x02, "5" )
+ PORT_DIPSETTING( 0x03, "6" )
+ PORT_DIPNAME( 0x1c, 0x00, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x14, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x18, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x1c, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x20, 0x00, DEF_STR( Bonus_Life ) ) /* code at 0x43e1 in 'espial' and 0x44b5 in 'espialu' */
+ PORT_DIPSETTING( 0x00, "20k 70k 70k+" ) /* last bonus life at 980k : max. 15 bonus lives */
+ PORT_DIPSETTING( 0x20, "50k 100k 100k+" ) /* last bonus life at 900k : max. 10 bonus lives */
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+ PORT_DIPNAME( 0x80, 0x00, "Reset on Check Error" )
+ PORT_DIPSETTING( 0x80, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Yes ) )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_COCKTAIL
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY
+INPUT_PORTS_END
+
+
+/* verified from Z80 code */
+static INPUT_PORTS_START( netwars )
+ PORT_START("IN0")
+ PORT_DIPUNUSED( 0x01, IP_ACTIVE_HIGH )
+ PORT_DIPNAME( 0x02, 0x00, DEF_STR( Difficulty ) ) /* when enemies shoot - code at 0x2216 */
+ PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Hard ) )
+ PORT_DIPUNUSED( 0x04, IP_ACTIVE_HIGH )
+ PORT_DIPUNUSED( 0x08, IP_ACTIVE_HIGH ) /* no effect due to code at 0x0e0a */
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "3" )
+ PORT_DIPSETTING( 0x01, "4" )
+ PORT_DIPSETTING( 0x02, "5" )
+ PORT_DIPSETTING( 0x03, "6" )
+ PORT_DIPNAME( 0x1c, 0x00, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x14, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x18, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x1c, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x20, 0x00, DEF_STR( Bonus_Life ) ) /* code at 0x2383 */
+ PORT_DIPSETTING( 0x00, "20k and 50k" )
+ PORT_DIPSETTING( 0x20, "40k and 70k" )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+ PORT_DIPNAME( 0x80, 0x00, "Reset on Check Error" )
+ PORT_DIPSETTING( 0x80, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Yes ) )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY
+INPUT_PORTS_END
+
+
+static const gfx_layout charlayout =
+{
+ 8,8,
+ RGN_FRAC(2,2),
+ 2,
+ { 0, 4 },
+ { STEP4(0,1), STEP4(8*8,1) },
+ { STEP8(0,8) },
+ 16*8
+};
+
+static const gfx_layout spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { STEP8(0,1), STEP8(8*8,1) },
+ { STEP8(0,8), STEP8(16*8,8) },
+ 32*8
+};
+
+
+static GFXDECODE_START( espial )
+ GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 64 )
+ GFXDECODE_ENTRY( "gfx2", 0, spritelayout, 0, 64 )
+GFXDECODE_END
+
+
+
+
+static MACHINE_CONFIG_START( espial, espial_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, 3072000) /* 3.072 MHz */
+ MCFG_CPU_PROGRAM_MAP(espial_map)
+ MCFG_TIMER_ADD_SCANLINE("scantimer", espial_scanline, "screen", 0, 1)
+
+ MCFG_CPU_ADD("audiocpu", Z80, 3072000) /* 2 MHz?????? */
+ MCFG_CPU_PROGRAM_MAP(espial_sound_map)
+ MCFG_CPU_IO_MAP(espial_sound_io_map)
+ MCFG_CPU_PERIODIC_INT(espial_sound_nmi_gen,4*60)
+
+ MCFG_MACHINE_RESET(espial)
+ MCFG_MACHINE_START(espial)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ 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(espial)
+
+ MCFG_GFXDECODE(espial)
+ MCFG_PALETTE_LENGTH(256)
+
+ MCFG_PALETTE_INIT(espial)
+ MCFG_VIDEO_START(espial)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("aysnd", AY8910, 1500000)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( netwars, espial )
+
+ /* basic machine hardware */
+
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(netwars_map)
+
+ /* video hardware */
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_SIZE(32*8, 64*8)
+
+ MCFG_VIDEO_START(netwars)
+MACHINE_CONFIG_END
+
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( espial )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "esp3.4f", 0x0000, 0x2000, CRC(0973c8a4) SHA1(d1fc6775870710b3dfea4e58a937ab996021adb1) )
+ ROM_LOAD( "esp4.4h", 0x2000, 0x2000, CRC(6034d7e5) SHA1(62c9699088f4ee1c69ec10a2f82feddd4083efef) )
+ ROM_LOAD( "esp6.bin", 0x4000, 0x1000, CRC(357025b4) SHA1(8bc62f564fcbe37bd490452b2d569d1981f76db1) )
+ ROM_LOAD( "esp5.bin", 0xc000, 0x1000, CRC(d03a2fc4) SHA1(791d70e4354350507f4c39d6115c046254168895) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "esp1.4n", 0x0000, 0x1000, CRC(fc7729e9) SHA1(96dfec574521fa4fe2588fbac2ef1caba6c1b884) )
+ ROM_LOAD( "esp2.4r", 0x1000, 0x1000, CRC(e4e256da) SHA1(8007471405bdcf90e29657a3ac2c2f84c9db7c9b) )
+
+ ROM_REGION( 0x3000, "gfx1", 0 )
+ ROM_LOAD( "espial8.4b", 0x0000, 0x2000, CRC(2f43036f) SHA1(316e9fab778d6c0abb0b6673aba33dfbe44b1262) )
+ ROM_LOAD( "espial7.4a", 0x2000, 0x1000, CRC(ebfef046) SHA1(5aa6efb7254fb42e814c1a29c5363f2d0727452f) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "espial10.4e", 0x0000, 0x1000, CRC(de80fbc1) SHA1(f5601eac8cb35a92c51bf81e5ac5a2b79bcde28f) )
+ ROM_LOAD( "espial9.4d", 0x1000, 0x1000, CRC(48c258a0) SHA1(55e72b9072ddc05f848e5a6fae159c554102010b) )
+
+ ROM_REGION( 0x0200, "proms", 0 ) /* The MMI6301 Bipolar PROM is compatible to the 82s129 */
+ ROM_LOAD( "mmi6301.1f", 0x0000, 0x0100, CRC(d12de557) SHA1(53e8a57dfab677cc5b9cdd83d2fbeb93169bcefd) ) /* palette low 4 bits */
+ ROM_LOAD( "mmi6301.1h", 0x0100, 0x0100, CRC(4c84fe70) SHA1(7ac52bd5b19663b9526ecb678e61db9939d2285d) ) /* palette high 4 bits */
+ROM_END
+
+ROM_START( espialu )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "espial3.4f", 0x0000, 0x2000, CRC(10f1da30) SHA1(8954ca3c7fccb8dd8433015ee303bb75a98f3474) )
+ ROM_LOAD( "espial4.4h", 0x2000, 0x2000, CRC(d2adbe39) SHA1(13c6041fd0e7c49988af89e3bab1b20999336928) )
+ ROM_LOAD( "espial.6", 0x4000, 0x1000, CRC(baa60bc1) SHA1(fc3d3f2e0316efb31161b28984fc8bd94473b783) )
+ ROM_LOAD( "espial.5", 0xc000, 0x1000, CRC(6d7bbfc1) SHA1(d886a76ce4a23c1310135bf1e4ffeda6d44625e7) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "espial1.4n", 0x0000, 0x1000, CRC(1e5ec20b) SHA1(f3bee38737321edf2d1ea753124421416441666e) )
+ ROM_LOAD( "espial2.4r", 0x1000, 0x1000, CRC(3431bb97) SHA1(97343bfb5e49cd1d26799723d8c5a31eff7b1170) )
+
+ ROM_REGION( 0x3000, "gfx1", 0 )
+ ROM_LOAD( "espial8.4b", 0x0000, 0x2000, CRC(2f43036f) SHA1(316e9fab778d6c0abb0b6673aba33dfbe44b1262) )
+ ROM_LOAD( "espial7.4a", 0x2000, 0x1000, CRC(ebfef046) SHA1(5aa6efb7254fb42e814c1a29c5363f2d0727452f) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "espial10.4e", 0x0000, 0x1000, CRC(de80fbc1) SHA1(f5601eac8cb35a92c51bf81e5ac5a2b79bcde28f) )
+ ROM_LOAD( "espial9.4d", 0x1000, 0x1000, CRC(48c258a0) SHA1(55e72b9072ddc05f848e5a6fae159c554102010b) )
+
+ ROM_REGION( 0x0200, "proms", 0 ) /* The MMI6301 Bipolar PROM is compatible to the 82s129 */
+ ROM_LOAD( "mmi6301.1f", 0x0000, 0x0100, CRC(d12de557) SHA1(53e8a57dfab677cc5b9cdd83d2fbeb93169bcefd) ) /* palette low 4 bits */
+ ROM_LOAD( "mmi6301.1h", 0x0100, 0x0100, CRC(4c84fe70) SHA1(7ac52bd5b19663b9526ecb678e61db9939d2285d) ) /* palette high 4 bits */
+ROM_END
+
+ROM_START( netwars )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "netw3.4f", 0x0000, 0x2000, CRC(8e782991) SHA1(4fd533035b61b7006ef94300bb63474fb9e1c9f0) )
+ ROM_LOAD( "netw4.4h", 0x2000, 0x2000, CRC(6e219f61) SHA1(a27304017251777be501861e106a670fff078d54) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "netw1.4n", 0x0000, 0x1000, CRC(53939e16) SHA1(938f505db0cfcfafb751378ae0c139b7f32404cb) )
+ ROM_LOAD( "netw2.4r", 0x1000, 0x1000, CRC(c096317a) SHA1(e61a3e9107481fd80309172a1a9a431903e02489) )
+
+ ROM_REGION( 0x4000, "gfx1", 0 )
+ ROM_LOAD( "netw8.4b", 0x0000, 0x2000, CRC(2320277e) SHA1(4e05f6833de89f8f7cc0a0d1cbec03656f8b54a1) )
+ ROM_LOAD( "netw7.4a", 0x2000, 0x2000, CRC(25cc5b7f) SHA1(2e089c3d5f8ebba676a959ba71bc9c1750312721) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "netw10.4e", 0x0000, 0x1000, CRC(87b65625) SHA1(a702726c0fbe7669604f48bf2c19a54031645731) )
+ ROM_LOAD( "netw9.4d", 0x1000, 0x1000, CRC(830d0218) SHA1(c726a4a9dd1f10279f79cbe5fdd693a62d9d3ac5) )
+
+ ROM_REGION( 0x0200, "proms", 0 ) /* The MMI6301 Bipolar PROM is compatible to the 82s129 */
+ ROM_LOAD( "mmi6301.1f", 0x0000, 0x0100, CRC(f3ae1fe2) SHA1(4f259f8da3c9ecdc6010f83b6abc1371366bd0ab) ) /* palette low 4 bits */
+ ROM_LOAD( "mmi6301.1h", 0x0100, 0x0100, CRC(c44c3771) SHA1(c86125fac28fafc744957258bf3bb5a6dc664b54) ) /* palette high 4 bits */
+ROM_END
+
+
+
+GAME( 1983, espial, 0, espial, espial, 0, ROT0, "Orca / Thunderbolt", "Espial (Europe)", GAME_SUPPORTS_SAVE )
+GAME( 1983, espialu, espial, espial, espial, 0, ROT0, "Orca / Thunderbolt", "Espial (US?)", GAME_SUPPORTS_SAVE )
+GAME( 1983, netwars, 0, netwars, netwars, 0, ROT90, "Orca (Esco Trading Co license)", "Net Wars", GAME_SUPPORTS_SAVE )