// license:BSD-3-Clause
// copyright-holders:Stefan Jokisch
/***************************************************************************
Atari Liberator hardware
Games supported:
* Liberator
Known bugs:
* none at this time
****************************************************************************
Liberator Memory Map (for the main set, the other one is rearranged)
(from the schematics/manual)
HEX R/W D7 D6 D5 D4 D3 D2 D1 D0 function
---------+-----+------------------------+------------------------
0000 D D D D D D D D XCOORD
0001 D D D D D D D D YCOORD
0002 D D D BIT MODE DATA
---------+-----+------------------------+------------------------
0003-033F D D D D D D D D Working RAM
0340-3D3F D D D D D D D D Screen RAM
3D40-3FFF D D D D D D D D Working RAM
---------+-----+------------------------+------------------------
4000-403F R D D D D D D D D EARD* read from non-volatile memory
---------+-----+------------------------+------------------------
5000 R D coin AUX (CTRLD* set low)
5000 R D coin LEFT (CTRLD* set low)
5000 R D coin RIGHT (CTRLD* set low)
5000 R D SLAM (CTRLD* set low)
5000 R D SPARE (CTRLD* set low)
5000 R D SPARE (CTRLD* set low)
5000 R D COCKTAIL (CTRLD* set low)
5000 R D SELF-TEST (CTRLD* set low)
5000 R D D D D HDIR (CTRLD* set high)
5000 R D D D D VDIR (CTRLD* set high)
---------+-----+------------------------+------------------------
5001 R D SHIELD 2
5001 R D SHIELD 1
5001 R D FIRE 2
5001 R D FIRE 1
5001 R D SPARE (CTRLD* set low)
5001 R D START 2
5001 R D START 1
5001 R D VBLANK
---------+-----+------------------------+------------------------
6000-600F W D D D D base_ram*
6200-621F W D D D D D D D D COLORAM*
6400 W INTACK*
6600 W D D D D EARCON
6800 W D D D D D D D D STARTLG (planet frame)
6A00 W WDOG*
---------+-----+------------------------+------------------------
6C00 W D START LED 1
6C01 W D START LED 2
6C02 W D TBSWP*
6C03 W D SPARE
6C04 W D CTRLD*
6C05 W D COINCNTRR
6C06 W D COINCNTRL
6C07 W D PLANET
---------+-----+------------------------+------------------------
6E00-6E3F W D D D D D D D D EARWR*
7000-701F D D D D D D D D IOS2* (Pokey 2)
7800-781F D D D D D D D D IOS1* (Pokey 1)
8000-EFFF R D D D D D D D D ROM
-----------------------------------------------------------------
Dip switches at D4 on the PCB for play options: (IN2)
LSB D1 D2 D3 D4 D5 D6 MSB
SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 Option
-------------------------------------------------------------------------------------
Off Off 4 ships per game <-
On Off 5 ships per game
Off On 6 ships per game
On On 8 ships per game
-------------------------------------------------------------------------------------
Off Off Bonus ship every 15000 points
On Off Bonus ship every 20000 points <-
Off On Bonus ship every 25000 points
On On Bonus ship every 30000 points
-------------------------------------------------------------------------------------
On Off Easy game play
Off Off Normal game play <-
Off On Hard game play
-------------------------------------------------------------------------------------
X X Not used
-------------------------------------------------------------------------------------
Dip switches at A4 on the PCB for price options: (IN3)
LSB D1 D2 D3 D4 D5 D6 MSB
SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 Option
-------------------------------------------------------------------------------------
Off Off Free play
On Off 1 coin for 2 credits
Off On 1 coin for 1 credit <-
On On 2 coins for 1 credit
-------------------------------------------------------------------------------------
Off Off Right coin mech X 1 <-
On Off Right coin mech X 4
Off On Right coin mech X 5
On On Right coin mech X 6
-------------------------------------------------------------------------------------
Off Left coin mech X 1 <-
On Left coin mech X 2
-------------------------------------------------------------------------------------
Off Off Off No bonus coins <-
Off On Off For every 4 coins inserted, game logic
adds 1 more coin
On On Off For every 4 coins inserted, game logic
adds 2 more coin
Off Off On For every 5 coins inserted, game logic
adds 1 more coin
On Off On For every 3 coins inserted, game logic
adds 1 more coin
X On On No bonus coins
-------------------------------------------------------------------------------------
<- = Manufacturer's suggested settings
Note:
----
The loop at $cf60 should count down from Y=0 instead of Y=0xff. Because of this the first
four leftmost pixels of each row are not cleared. This bug is masked by the visible area
covering up the offending pixels.
******************************************************************************************/
#include "emu.h"
#include "includes/liberatr.h"
#include "speaker.h"
#define MASTER_CLOCK 20000000 /* 20Mhz Main Clock Xtal */
void liberatr_state::machine_start()
{
save_item(NAME(m_earom_data));
save_item(NAME(m_earom_control));
save_item(NAME(m_trackball_offset));
save_item(NAME(m_ctrld));
save_item(NAME(m_videoram));
}
void liberatr_state::machine_reset()
{
// reset the control latch on the EAROM
m_earom->set_control(0, 1, 1, 0);
m_earom->set_clk(0);
}
/*************************************
*
* Output ports
*
*************************************/
WRITE8_MEMBER(liberatr_state::output_latch_w)
{
m_outlatch->write_bit(offset, BIT(data, 4));
}
WRITE_LINE_MEMBER(liberatr_state::coin_counter_left_w)
{
machine().bookkeeping().coin_counter_w(0, state);
}
WRITE_LINE_MEMBER(liberatr_state::coin_counter_right_w)
{
machine().bookkeeping().coin_counter_w(1, state);
}
/*************************************
*
* Input ports
*
*************************************/
WRITE_LINE_MEMBER(liberatr_state::trackball_reset_w)
{
/* on the rising edge of /ctrld, the /ld signal on the LS191 is released and the value of the switches */
/* input becomes the starting point for the trackball counters */
if (!m_ctrld && state)
{
uint8_t trackball = ioport("FAKE")->read();
uint8_t switches = ioport("IN0")->read();
m_trackball_offset = ((trackball & 0xf0) - (switches & 0xf0)) | ((trackball - switches) & 0x0f);
}
m_ctrld = state;
}
READ8_MEMBER( liberatr_state::port0_r )
{
/* if ctrld is high, the /ld signal on the LS191 is NOT set, meaning that the trackball is counting */
if (m_ctrld)
{
uint8_t trackball = ioport("FAKE")->read();
return ((trackball & 0xf0) - (m_trackball_offset & 0xf0)) | ((trackball - m_trackball_offset) & 0x0f);
}
/* otherwise, the LS191 is simply passing through the raw switch inputs */
else
return ioport("IN0")->read();
}
/*************************************
*
* Early raster EAROM interface
*
*************************************/
READ8_MEMBER( liberatr_state::earom_r )
{
// return data latched from previous clock
return m_earom->data();
}
WRITE8_MEMBER( liberatr_state::earom_w )
{
// remember the value written
m_earom_data = data;
// output latch only enabled if control bit 2 is set
if (m_earom_control & 4)
m_earom->set_data(m_earom_data);
// always latch the address
m_earom->set_address(offset);
}
WRITE8_MEMBER( liberatr_state::earom_control_w )
{
// remember the control state
m_earom_control = data;
// ensure ouput data is put on data lines prior to updating controls
if (m_earom_control & 4)
m_earom->set_data(m_earom_data);
// set the control lines; /CS2 is always held low
m_earom->set_control(data & 8, 1, ~data & 4, data & 2);
m_earom->set_clk(data & 1);
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
void liberatr_state::liberatr_map(address_map &map)
{
map(0x0000, 0x3fff).ram().w(this, FUNC(liberatr_state::bitmap_w)).share("bitmapram"); /* overlapping for my convenience */
map(0x0000, 0x0000).ram().share("xcoord");
map(0x0001, 0x0001).ram().share("ycoord");
map(0x0002, 0x0002).rw(this, FUNC(liberatr_state::bitmap_xy_r), FUNC(liberatr_state::bitmap_xy_w));
map(0x4000, 0x403f).r(this, FUNC(liberatr_state::earom_r));
map(0x5000, 0x5000).r(this, FUNC(liberatr_state::port0_r));
map(0x5001, 0x5001).portr("IN1");
map(0x6000, 0x600f).nopr().writeonly().share("base_ram");
map(0x6200, 0x621f).nopr().writeonly().share("colorram");
map(0x6400, 0x6400).nopw();
map(0x6600, 0x6600).w(this, FUNC(liberatr_state::earom_control_w));
map(0x6800, 0x6800).writeonly().share("planet_frame");
map(0x6a00, 0x6a00).w("watchdog", FUNC(watchdog_timer_device::reset_w));
map(0x6c00, 0x6c07).w(this, FUNC(liberatr_state::output_latch_w));
map(0x6e00, 0x6e3f).nopr().w(this, FUNC(liberatr_state::earom_w));
map(0x7000, 0x701f).rw("pokey2", FUNC(pokey_device::read), FUNC(pokey_device::write));
map(0x7800, 0x781f).rw("pokey1", FUNC(pokey_device::read), FUNC(pokey_device::write));
map(0x8000, 0xefff).rom();
map(0xfffa, 0xffff).rom();
}
/*************************************
*
* Alternate main CPU memory handlers
*
*************************************/
void liberatr_state::liberat2_map(address_map &map)
{
map(0x0000, 0x3fff).ram().w(this, FUNC(liberatr_state::bitmap_w)).share("bitmapram"); /* overlapping for my convenience */
map(0x0000, 0x0000).ram().share("xcoord");
map(0x0001, 0x0001).ram().share("ycoord");
map(0x0002, 0x0002).rw(this, FUNC(liberatr_state::bitmap_xy_r), FUNC(liberatr_state::bitmap_xy_w));
map(0x4000, 0x4000).r(this, FUNC(liberatr_state::port0_r));
map(0x4001, 0x4001).portr("IN1");
map(0x4002, 0x400f).nopr();
map(0x4000, 0x400f).writeonly().share("base_ram");
map(0x4200, 0x421f).nopr().writeonly().share("colorram");
map(0x4400, 0x4400).nopw();
map(0x4600, 0x4600).w(this, FUNC(liberatr_state::earom_control_w));
map(0x4800, 0x483f).r(this, FUNC(liberatr_state::earom_r));
map(0x4800, 0x4800).writeonly().share("planet_frame");
map(0x4a00, 0x4a00).w("watchdog", FUNC(watchdog_timer_device::reset_w));
map(0x4c00, 0x4c07).w(this, FUNC(liberatr_state::output_latch_w));
map(0x4e00, 0x4e3f).nopr().w(this, FUNC(liberatr_state::earom_w));
map(0x5000, 0x501f).rw("pokey2", FUNC(pokey_device::read), FUNC(pokey_device::write));
map(0x5800, 0x581f).rw("pokey1", FUNC(pokey_device::read), FUNC(pokey_device::write));
//AM_RANGE(0x6000, 0x601f) AM_WRITE(pokey1_w) /* bug ??? */
map(0x6000, 0xbfff).rom();
map(0xfffa, 0xffff).rom();
}
/*************************************
*
* Port definitions
*
*************************************/
static INPUT_PORTS_START( liberatr )
PORT_START("IN0") /* IN0 - $5000 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_TILT )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x40, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
PORT_START("IN1") /* IN1 - $5001 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH,IPT_CUSTOM ) PORT_VBLANK("screen")
PORT_START("DSW1") /* IN2 - Game Option switches DSW @ D4 on PCB */
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "4" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x02, "6" )
PORT_DIPSETTING( 0x03, "8" )
PORT_DIPNAME( 0x0C, 0x04, DEF_STR( Bonus_Life ) )
PORT_DIPSETTING( 0x00, "15000" )
PORT_DIPSETTING( 0x04, "20000" )
PORT_DIPSETTING( 0x08, "25000" )
PORT_DIPSETTING( 0x0C, "30000" )
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Difficulty ) )
PORT_DIPSETTING( 0x10, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x00, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x20, DEF_STR( Hard ) )
PORT_DIPSETTING( 0x30, "???" )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("DSW2") /* IN3 - Pricing Option switches DSW @ A4 on PCB */
PORT_DIPNAME( 0x03, 0x02, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0x0c, 0x00, "Right Coin" )
PORT_DIPSETTING ( 0x00, "*1" )
PORT_DIPSETTING ( 0x04, "*4" )
PORT_DIPSETTING ( 0x08, "*5" )
PORT_DIPSETTING ( 0x0c, "*6" )
PORT_DIPNAME( 0x10, 0x00, "Left Coin" )
PORT_DIPSETTING ( 0x00, "*1" )
PORT_DIPSETTING ( 0x10, "*2" )
/* TODO: verify the following settings */
PORT_DIPNAME( 0xe0, 0x00, "Bonus Coins" )
PORT_DIPSETTING ( 0x00, DEF_STR( None ) )
PORT_DIPSETTING ( 0x80, "1 each 5" )
PORT_DIPSETTING ( 0x40, "1 each 4 (+Demo)" )
PORT_DIPSETTING ( 0xa0, "1 each 3" )
PORT_DIPSETTING ( 0x60, "2 each 4 (+Demo)" )
PORT_DIPSETTING ( 0x20, "1 each 2" )
PORT_DIPSETTING ( 0xc0, "Freeze Mode" )
PORT_DIPSETTING ( 0xe0, "Freeze Mode" )
PORT_START("FAKE") /* IN4 - FAKE - overlaps IN0 in the HW */
PORT_BIT( 0x0f, 0x00, IPT_TRACKBALL_X ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10)
PORT_BIT( 0xf0, 0x00, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10)
INPUT_PORTS_END
/*************************************
*
* Machine driver
*
*************************************/
MACHINE_CONFIG_START(liberatr_state::liberatr)
/* basic machine hardware */
MCFG_DEVICE_ADD("maincpu", M6502, MASTER_CLOCK/16) /* 1.25Mhz divided from 20Mhz master clock */
MCFG_DEVICE_PROGRAM_MAP(liberatr_map)
MCFG_DEVICE_PERIODIC_INT_DRIVER(driver_device,irq0_line_hold,4*60)
MCFG_DEVICE_ADD("earom", ER2055, 0)
MCFG_DEVICE_ADD("outlatch", LS259, 0)
MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(OUTPUT("led0")) MCFG_DEVCB_INVERT // START LED1
MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(OUTPUT("led1")) MCFG_DEVCB_INVERT // START LED2
MCFG_ADDRESSABLE_LATCH_Q2_OUT_CB(NOOP) // TBSWP
MCFG_ADDRESSABLE_LATCH_Q3_OUT_CB(NOOP) // SPARE
MCFG_ADDRESSABLE_LATCH_Q4_OUT_CB(WRITELINE(*this, liberatr_state, trackball_reset_w)) // CTRLD
MCFG_ADDRESSABLE_LATCH_Q5_OUT_CB(WRITELINE(*this, liberatr_state, coin_counter_right_w))
MCFG_ADDRESSABLE_LATCH_Q6_OUT_CB(WRITELINE(*this, liberatr_state, coin_counter_left_w))
MCFG_ADDRESSABLE_LATCH_Q7_OUT_CB(WRITELINE(*this, liberatr_state, planet_select_w))
MCFG_WATCHDOG_ADD("watchdog")
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MCFG_SCREEN_UPDATE_DRIVER(liberatr_state, screen_update)
MCFG_SCREEN_SIZE(256,256)
MCFG_SCREEN_VISIBLE_AREA(8, 247, 13, 244)
/* sound hardware */
SPEAKER(config, "mono").front_center();
MCFG_DEVICE_ADD("pokey1", POKEY, MASTER_CLOCK/16) /* 1.25Mhz from Phi2 signal from 6502 */
MCFG_POKEY_ALLPOT_R_CB(IOPORT("DSW2"))
MCFG_POKEY_OUTPUT_OPAMP_LOW_PASS(RES_K(4.7), CAP_U(0.01), 5.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MCFG_DEVICE_ADD("pokey2", POKEY, MASTER_CLOCK/16) /* 1.25Mhz from Phi2 signal from 6502 */
MCFG_POKEY_OUTPUT_OPAMP_LOW_PASS(RES_K(4.7), CAP_U(0.01), 5.0)
MCFG_POKEY_ALLPOT_R_CB(IOPORT("DSW1"))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_CONFIG_END
MACHINE_CONFIG_START(liberatr_state::liberat2)
liberatr(config);
/* basic machine hardware */
MCFG_DEVICE_MODIFY("maincpu")
MCFG_DEVICE_PROGRAM_MAP(liberat2_map)
MACHINE_CONFIG_END
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( liberatr )
ROM_REGION( 0x10000, "maincpu", 0 ) /* 64k for code and data */
ROM_LOAD( "136012.206", 0x8000, 0x1000, CRC(1a0cb4a0) SHA1(595828a07af729a84aab4e0b51e873046b56b419) )
ROM_LOAD( "136012.205", 0x9000, 0x1000, CRC(2f071920) SHA1(8764f3e78451c4968bffb7c7f72d1ed862f4b185) )
ROM_LOAD( "136012.204", 0xa000, 0x1000, CRC(bcc91827) SHA1(3bfbe1f1db58437ccd204a857e58695f56819649) )
ROM_LOAD( "136012.203", 0xb000, 0x1000, CRC(b558c3d4) SHA1(0b09786d696e91b12435a9e76b127c004c32e59a) )
ROM_LOAD( "136012.202", 0xc000, 0x1000, CRC(569ba7ea) SHA1(4812b255886204192ab999d1370550d48438ea81) )
ROM_LOAD( "136012.201", 0xd000, 0x1000, CRC(d12cd6d0) SHA1(94474429cbcdbb406eb045152fb158e2a23cd26d) )
ROM_LOAD( "136012.200", 0xe000, 0x1000, CRC(1e98d21a) SHA1(92c7cc033c78ae0ce8127d49debe62263404feb1) )
ROM_RELOAD( 0xf000, 0x1000 ) /* for interrupt/reset vectors */
ROM_REGION( 0x4000, "gfx1", 0 ) /* planet image, used at runtime */
ROM_LOAD( "136012.110", 0x0000, 0x1000, CRC(6eb11221) SHA1(355b71812a18cbb2ee4dc20b3622fca1c96e4570) )
ROM_LOAD( "136012.107", 0x1000, 0x1000, CRC(8a616a63) SHA1(76794cc4e11048bb6f2628bd8b84c9a7e2e82551) )
ROM_LOAD( "136012.108", 0x2000, 0x1000, CRC(3f8e4cf6) SHA1(a9d0feb0892f343687e00b96f05adb423ee4d659) )
ROM_LOAD( "136012.109", 0x3000, 0x1000, CRC(dda0c0ef) SHA1(6e547c07c1abd17383a4389b0b4ced442ed65ce7) )
ROM_REGION( 0x100, "user1", 0 ) /* latitude scaler */
ROM_LOAD_NIB_LOW ( "136012.123", 0x0000, 0x0100, CRC(b8c806e0) SHA1(19b1b9796e1e9a42899a92ec53288d17d5d15fb3) )
ROM_LOAD_NIB_HIGH( "136012.124", 0x0000, 0x0100, CRC(e51ec78f) SHA1(224237370c418361a00d62a77d39fa494e7d8831) )
ROM_REGION( 0x100, "user2", 0 ) /* longitude scaler */
ROM_LOAD_NIB_LOW ( "136012.125", 0x0000, 0x0100, CRC(52ac8dd9) SHA1(125d54b562d079b974f2562e71ab7c7a0b97e709) )
ROM_LOAD_NIB_HIGH( "136012.126", 0x0000, 0x0100, CRC(2e670aa6) SHA1(a6bcc49d0948d2dfe497c5e3ad4a834fa78f779a) )
ROM_REGION( 0x200, "proms", 0 )
ROM_LOAD( "136012.021", 0x0000, 0x0100, CRC(ffdcd7bc) SHA1(2ce733203d628e299ec4fb93db8be1598b49142c) ) /* write protect PROM */
ROM_LOAD( "136012.022", 0x0100, 0x0100, CRC(3353edce) SHA1(915308b11096fc1d02acf9b4af806a2a935dd748) ) /* sync PROM */
ROM_END
ROM_START( liberatr2 )
ROM_REGION( 0x10000, "maincpu", 0 ) /* 64k for code and data */
ROM_LOAD( "l6.bin", 0x6000, 0x1000, CRC(78093d06) SHA1(0f6ca01e27b32aae384a6ab67a6f14eedd3f1d9c) )
ROM_LOAD( "l5.bin", 0x7000, 0x1000, CRC(988db636) SHA1(8fdd07b397d4bef108aafb10c06c2fd53fc1f99a) )
ROM_LOAD( "l4.bin", 0x8000, 0x1000, CRC(ec114540) SHA1(eb35510b59f5e9624c3d94fb16dacb4968349030) )
ROM_LOAD( "l3.bin", 0x9000, 0x1000, CRC(184c751f) SHA1(e020d2943be89f244c1aeeb34a28b7aa7dbc1454) )
ROM_LOAD( "l2.bin", 0xa000, 0x1000, CRC(c3f61f88) SHA1(a56ce094fe7374d3ac341d5eb9e06df083e16b1f) )
ROM_LOAD( "l1.bin", 0xb000, 0x1000, CRC(ef6e9f9e) SHA1(b1f7cc9e0a2ea08ec89428ad31161ac81e7faaaf) )
ROM_RELOAD( 0xf000, 0x1000 ) /* for interrupt/reset vectors */
ROM_REGION( 0x4000, "gfx1", 0 ) /* planet image, used at runtime */
ROM_LOAD( "136012.110", 0x0000, 0x1000, CRC(6eb11221) SHA1(355b71812a18cbb2ee4dc20b3622fca1c96e4570) )
ROM_LOAD( "136012.107", 0x1000, 0x1000, CRC(8a616a63) SHA1(76794cc4e11048bb6f2628bd8b84c9a7e2e82551) )
ROM_LOAD( "136012.108", 0x2000, 0x1000, CRC(3f8e4cf6) SHA1(a9d0feb0892f343687e00b96f05adb423ee4d659) )
ROM_LOAD( "136012.109", 0x3000, 0x1000, CRC(dda0c0ef) SHA1(6e547c07c1abd17383a4389b0b4ced442ed65ce7) )
ROM_REGION( 0x100, "user1", 0 ) /* latitude scaler */
ROM_LOAD_NIB_LOW ( "136012.123", 0x0000, 0x0100, CRC(b8c806e0) SHA1(19b1b9796e1e9a42899a92ec53288d17d5d15fb3) )
ROM_LOAD_NIB_HIGH( "136012.124", 0x0000, 0x0100, CRC(e51ec78f) SHA1(224237370c418361a00d62a77d39fa494e7d8831) )
ROM_REGION( 0x100, "user2", 0 ) /* longitude scaler */
ROM_LOAD_NIB_LOW ( "136012.125", 0x0000, 0x0100, CRC(52ac8dd9) SHA1(125d54b562d079b974f2562e71ab7c7a0b97e709) )
ROM_LOAD_NIB_HIGH( "136012.126", 0x0000, 0x0100, CRC(2e670aa6) SHA1(a6bcc49d0948d2dfe497c5e3ad4a834fa78f779a) )
ROM_REGION( 0x200, "proms", 0 )
ROM_LOAD( "136012.021", 0x0000, 0x0100, CRC(ffdcd7bc) SHA1(2ce733203d628e299ec4fb93db8be1598b49142c) ) /* write protect PROM */
ROM_LOAD( "136012.022", 0x0100, 0x0100, CRC(3353edce) SHA1(915308b11096fc1d02acf9b4af806a2a935dd748) ) /* sync PROM */
ROM_END
/*************************************
*
* Game drivers
*
*************************************/
GAME( 1982, liberatr, 0, liberatr, liberatr, liberatr_state, empty_init, ROT0, "Atari", "Liberator (set 1)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
GAME( 1982, liberatr2,liberatr, liberat2, liberatr, liberatr_state, empty_init, ROT0, "Atari", "Liberator (set 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )