summaryrefslogtreecommitdiffstats
path: root/src/mame/drivers/liberatr.cpp
blob: 9cff2742c9ee6c77c02847328038e657a4d8a24d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
// 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(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(FUNC(liberatr_state::bitmap_xy_r), FUNC(liberatr_state::bitmap_xy_w));
	map(0x4000, 0x403f).r(FUNC(liberatr_state::earom_r));
	map(0x5000, 0x5000).r(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(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(FUNC(liberatr_state::output_latch_w));
	map(0x6e00, 0x6e3f).nopr().w(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(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(FUNC(liberatr_state::bitmap_xy_r), FUNC(liberatr_state::bitmap_xy_w));
	map(0x4000, 0x4000).r(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(FUNC(liberatr_state::earom_control_w));
	map(0x4800, 0x483f).r(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(FUNC(liberatr_state::output_latch_w));
	map(0x4e00, 0x4e3f).nopr().w(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 )