summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/brkthru.c
blob: 8b082f8ddd8e4b809be3c34aa2b029b770e81427 (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
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
/***************************************************************************
Break Thru Doc. Data East (1986)

driver by Phil Stroffolino

UNK-1.1    (16Kb)  Code (4000-7FFF)
UNK-1.2    (32Kb)  Main 6809 (8000-FFFF)
UNK-1.3    (32Kb)  Mapped (2000-3FFF)
UNK-1.4    (32Kb)  Mapped (2000-3FFF)

UNK-1.5    (32Kb)  Sound 6809 (8000-FFFF)

Background has 4 banks, with 256 16x16x8 tiles in each bank.
UNK-1.6    (32Kb)  GFX Background
UNK-1.7    (32Kb)  GFX Background
UNK-1.8    (32Kb)  GFX Background

UNK-1.9    (32Kb)  GFX Sprites
UNK-1.10   (32Kb)  GFX Sprites
UNK-1.11   (32Kb)  GFX Sprites

Text has 256 8x8x4 characters.
UNK-1.12   (8Kb)   GFX Text

**************************************************************************
Memory Map for Main CPU by Carlos A. Lozano
**************************************************************************

MAIN CPU
0000-03FF                                   W                   Plane0
0400-0BFF                                  R/W                  RAM
0C00-0FFF                                   W                   Plane2(Background)
1000-10FF                                   W                   Plane1(sprites)
1100-17FF                                  R/W                  RAM
1800-180F                                  R/W                  In/Out
1810-1FFF                                  R/W                  RAM (unmapped?)
2000-3FFF                                   R                   ROM Mapped(*)
4000-7FFF                                   R                   ROM(UNK-1.1)
8000-FFFF                                   R                   ROM(UNK-1.2)

Interrupts: Reset, NMI, IRQ
The test routine is at F000

Sound: YM2203 and YM3526 driven by 6809.  Sound added by Bryan McPhail, 1/4/98.

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

#include "driver.h"
#include "deprecat.h"
#include "cpu/m6809/m6809.h"
#include "sound/2203intf.h"
#include "sound/3812intf.h"


#define MASTER_CLOCK		XTAL_12MHz


//UINT8 *brkthru_nmi_enable; /* needs to be tracked down */
extern UINT8 *brkthru_videoram;
extern size_t brkthru_videoram_size;

WRITE8_HANDLER( brkthru_1800_w );
WRITE8_HANDLER( brkthru_bgram_w );
WRITE8_HANDLER( brkthru_fgram_w );
VIDEO_START( brkthru );
PALETTE_INIT( brkthru );
VIDEO_UPDATE( brkthru );


static int nmi_enable;

static WRITE8_HANDLER( brkthru_1803_w )
{
	/* bit 0 = NMI enable */
	nmi_enable = ~data & 1;

	/* bit 1 = ? maybe IRQ acknowledge */
}
static WRITE8_HANDLER( darwin_0803_w )
{
	/* bit 0 = NMI enable */
	/*nmi_enable = ~data & 1;*/
	logerror("0803 %02X\n",data);
        nmi_enable = data;
	/* bit 1 = ? maybe IRQ acknowledge */
}

static WRITE8_HANDLER( brkthru_soundlatch_w )
{
	soundlatch_w(offset,data);
	cpunum_set_input_line(Machine, 1,INPUT_LINE_NMI,PULSE_LINE);
}



static ADDRESS_MAP_START( brkthru_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x03ff) AM_READWRITE(MRA8_RAM, brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
	AM_RANGE(0x0400, 0x0bff) AM_RAM
	AM_RANGE(0x0c00, 0x0fff) AM_READWRITE(MRA8_RAM, brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
	AM_RANGE(0x1000, 0x10ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
	AM_RANGE(0x1100, 0x17ff) AM_RAM
	AM_RANGE(0x1800, 0x1800) AM_READ(input_port_0_r)	/* player controls, player start */
	AM_RANGE(0x1801, 0x1801) AM_READ(input_port_1_r)	/* cocktail player controls */
	AM_RANGE(0x1802, 0x1802) AM_READ(input_port_3_r)	/* DSW 0 */
	AM_RANGE(0x1803, 0x1803) AM_READ(input_port_2_r)	/* coin input & DSW */
	AM_RANGE(0x1800, 0x1801) AM_WRITE(brkthru_1800_w)	/* bg scroll and color, ROM bank selection, flip screen */
	AM_RANGE(0x1802, 0x1802) AM_WRITE(brkthru_soundlatch_w)
	AM_RANGE(0x1803, 0x1803) AM_WRITE(brkthru_1803_w)	/* NMI enable, + ? */
	AM_RANGE(0x2000, 0x3fff) AM_ROMBANK(1)
	AM_RANGE(0x4000, 0xffff) AM_ROM
ADDRESS_MAP_END


/* same as brktrhu, but xor 0x1000 below 8k */
static ADDRESS_MAP_START( darwin_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x1000, 0x13ff) AM_READWRITE(MRA8_RAM, brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
	AM_RANGE(0x1400, 0x1bff) AM_RAM
	AM_RANGE(0x1c00, 0x1fff) AM_READWRITE(MRA8_RAM, brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
	AM_RANGE(0x0000, 0x00ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
	AM_RANGE(0x0100, 0x01ff) AM_WRITE(MWA8_NOP) /*tidyup, nothing realy here?*/
	AM_RANGE(0x0800, 0x0800) AM_READ(input_port_0_r)	/* player controls, player start */
	AM_RANGE(0x0801, 0x0801) AM_READ(input_port_1_r)	/* cocktail player controls */
	AM_RANGE(0x0802, 0x0802) AM_READ(input_port_3_r)	/* DSW 0 */
	AM_RANGE(0x0803, 0x0803) AM_READ(input_port_2_r)	/* coin input & DSW */
	AM_RANGE(0x0800, 0x0801) AM_WRITE(brkthru_1800_w)     /* bg scroll and color, ROM bank selection, flip screen */
	AM_RANGE(0x0802, 0x0802) AM_WRITE(brkthru_soundlatch_w)
	AM_RANGE(0x0803, 0x0803) AM_WRITE(darwin_0803_w)     /* NMI enable, + ? */
	AM_RANGE(0x2000, 0x3fff) AM_ROMBANK(1)
	AM_RANGE(0x4000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x1fff) AM_RAM
	AM_RANGE(0x2000, 0x2000) AM_WRITE(YM3526_control_port_0_w)
	AM_RANGE(0x2001, 0x2001) AM_WRITE(YM3526_write_port_0_w)
	AM_RANGE(0x4000, 0x4000) AM_READ(soundlatch_r)
	AM_RANGE(0x6000, 0x6000) AM_READ(YM2203_status_port_0_r)
	AM_RANGE(0x6000, 0x6000) AM_WRITE(YM2203_control_port_0_w)
	AM_RANGE(0x6001, 0x6001) AM_WRITE(YM2203_write_port_0_w)
	AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END



static INTERRUPT_GEN( brkthru_interrupt )
{
	if (cpu_getiloops() == 0)
	{
		if (nmi_enable)
			cpunum_set_input_line(machine, 0, INPUT_LINE_NMI, PULSE_LINE);
	}
	else
	{
		/* generate IRQ on coin insertion */
		if ((readinputportbytag("IN2") & 0xe0) != 0xe0)
			cpunum_set_input_line(machine, 0, 0, HOLD_LINE);
	}
}

#define COMMON_IN0\
	PORT_START_TAG("IN0")\
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 )\
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 )\
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY\
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY\
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY\
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY\
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )\
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )

#define COMMON_IN1\
	PORT_START_TAG("IN1")\
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL\
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL\
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL\
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL\
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL\
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL\
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )\
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )	/* used only by the self test */

static INPUT_PORTS_START( brkthru )
COMMON_IN0
COMMON_IN1

	PORT_START_TAG("IN2")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "99 (Cheat)")
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x00, "20000 Points Only" )
	PORT_DIPSETTING(    0x04, "10000/20000 Points" )
	PORT_DIPSETTING(    0x0c, "20000/30000 Points" )
	PORT_DIPSETTING(    0x08, "20000/40000 Points" )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Allow_Continue ) )
	PORT_DIPSETTING(    0x00, DEF_STR( No ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Yes ) )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)	/* Manual says Picture Flip=On, Normal=Off */
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_IMPULSE(2)

	PORT_START_TAG("DSW0")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x10, 0x10, "Enemy Vehicles" )
	PORT_DIPSETTING(    0x10, "Slow" )
	PORT_DIPSETTING(    0x00, "Fast" )
	PORT_DIPNAME( 0x20, 0x20, "Enemy Bullets" )
	PORT_DIPSETTING(    0x20, "Slow" )
	PORT_DIPSETTING(    0x00, "Fast" )
	PORT_DIPNAME( 0x40, 0x00, "Control Panel" )
	PORT_DIPSETTING( 0x40, "1 Player" )
	PORT_DIPSETTING( 0x00, "2 Players" )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING( 0x80, DEF_STR( Cocktail ) )
INPUT_PORTS_END

static INPUT_PORTS_START( brkthruj )
COMMON_IN0
COMMON_IN1

	PORT_START_TAG("IN2")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "99 (Cheat)")
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x00, "20000 Points Only" )
	PORT_DIPSETTING(    0x04, "10000/20000 Points" )
	PORT_DIPSETTING(    0x0c, "20000/30000 Points" )
	PORT_DIPSETTING(    0x08, "20000/40000 Points" )
	PORT_SERVICE( 0x10, IP_ACTIVE_LOW )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)	/* Manual says Pitcure Flip=On, Normal=Off */
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_IMPULSE(2)

	PORT_START_TAG("DSW0")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x10, 0x10, "Enemy Vehicles" )
	PORT_DIPSETTING(    0x10, "Slow" )
	PORT_DIPSETTING(    0x00, "Fast" )
	PORT_DIPNAME( 0x20, 0x20, "Enemy Bullets" )
	PORT_DIPSETTING(    0x20, "Slow" )
	PORT_DIPSETTING(    0x00, "Fast" )
	PORT_DIPNAME( 0x40, 0x00, "Control Panel" )
	PORT_DIPSETTING( 0x40, "1 Player" )
	PORT_DIPSETTING( 0x00, "2 Players" )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING( 0x80, DEF_STR( Cocktail ) )
INPUT_PORTS_END

static INPUT_PORTS_START( darwin )
COMMON_IN0
COMMON_IN1

	PORT_START_TAG("IN2")	/* modified by Shingo Suzuki 1999/11/02 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x02, "20k, 50k and every 50k" )
	PORT_DIPSETTING(    0x00, "30k, 80k and every 80k" )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Medium ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_IMPULSE(2)

	PORT_START_TAG("DSW0")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x40, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
INPUT_PORTS_END


static const gfx_layout charlayout =
{
	8,8,	/* 8*8 chars */
	256,	/* 256 characters */
	3,	/* 3 bits per pixel */
	{ 512*8*8+4, 0, 4 },	/* plane offset */
	{ 256*8*8+0, 256*8*8+1, 256*8*8+2, 256*8*8+3, 0, 1, 2, 3 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8	/* every char takes 8 consecutive bytes */
};

static const gfx_layout tilelayout1 =
{
	16,16,	/* 16*16 tiles */
	128,	/* 128 tiles */
	3,	/* 3 bits per pixel */
	{ 0x4000*8+4, 0, 4 },	/* plane offset */
	{ 0, 1, 2, 3, 1024*8*8+0, 1024*8*8+1, 1024*8*8+2, 1024*8*8+3,
			16*8+0, 16*8+1, 16*8+2, 16*8+3, 16*8+1024*8*8+0, 16*8+1024*8*8+1, 16*8+1024*8*8+2, 16*8+1024*8*8+3 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
			8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	32*8	/* every tile takes 32 consecutive bytes */
};

static const gfx_layout tilelayout2 =
{
	16,16,	/* 16*16 tiles */
	128,	/* 128 tiles */
	3,	/* 3 bits per pixel */
	{ 0x3000*8+0, 0, 4 },	/* plane offset */
	{ 0, 1, 2, 3, 1024*8*8+0, 1024*8*8+1, 1024*8*8+2, 1024*8*8+3,
			16*8+0, 16*8+1, 16*8+2, 16*8+3, 16*8+1024*8*8+0, 16*8+1024*8*8+1, 16*8+1024*8*8+2, 16*8+1024*8*8+3 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
			8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	32*8	/* every tile takes 32 consecutive bytes */
};

static const gfx_layout spritelayout =
{
	16,16,	/* 16*16 sprites */
	1024,	/* 1024 sprites */
	3,	/* 3 bits per pixel */
	{ 2*1024*32*8, 1024*32*8, 0 },	/* plane offset */
	{ 16*8+0, 16*8+1, 16*8+2, 16*8+3, 16*8+4, 16*8+5, 16*8+6, 16*8+7,
			0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
			8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	32*8	/* every sprite takes 32 consecutive bytes */
};

static GFXDECODE_START( brkthru )
	GFXDECODE_ENTRY( REGION_GFX1, 0x00000, charlayout,   0x00,  1 )	/* use colors 0x00-0x07 */
	GFXDECODE_ENTRY( REGION_GFX2, 0x00000, tilelayout1,  0x80, 16 )	/* use colors 0x80-0xff */
	GFXDECODE_ENTRY( REGION_GFX2, 0x01000, tilelayout2,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x08000, tilelayout1,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x09000, tilelayout2,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x10000, tilelayout1,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x11000, tilelayout2,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x18000, tilelayout1,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX2, 0x19000, tilelayout2,  0x80, 16 )
	GFXDECODE_ENTRY( REGION_GFX3, 0x00000, spritelayout, 0x40,  8 )	/* use colors 0x40-0x7f */
GFXDECODE_END

/* handler called by the 3812 emulator when the internal timers cause an IRQ */
static void irqhandler(int linestate)
{
	cpunum_set_input_line(Machine, 1,M6809_IRQ_LINE,linestate);
}

static const struct YM3526interface ym3526_interface =
{
	irqhandler
};



static MACHINE_DRIVER_START( brkthru )

	/* basic machine hardware */
	MDRV_CPU_ADD(M6809, MASTER_CLOCK/8)        /* 1.5 MHz ? */
	MDRV_CPU_PROGRAM_MAP(brkthru_map,0)
	MDRV_CPU_VBLANK_INT_HACK(brkthru_interrupt,2)

	MDRV_CPU_ADD(M6809, MASTER_CLOCK/8)		/* 1.5 MHz ? */
	MDRV_CPU_PROGRAM_MAP(sound_map,0)

	/* video hardware */
	MDRV_GFXDECODE(brkthru)
	MDRV_PALETTE_LENGTH(256)

	/* not sure; assuming to be the same as darwin */
	MDRV_SCREEN_ADD("main", RASTER)
	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 384, 8, 248, 272, 8, 248)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)

	MDRV_PALETTE_INIT(brkthru)
	MDRV_VIDEO_START(brkthru)
	MDRV_VIDEO_UPDATE(brkthru)

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

	MDRV_SOUND_ADD(YM2203, MASTER_CLOCK/8)
	MDRV_SOUND_ROUTE(0, "mono", 0.10)
	MDRV_SOUND_ROUTE(1, "mono", 0.10)
	MDRV_SOUND_ROUTE(2, "mono", 0.10)
	MDRV_SOUND_ROUTE(3, "mono", 0.50)

	MDRV_SOUND_ADD(YM3526, MASTER_CLOCK/4)
	MDRV_SOUND_CONFIG(ym3526_interface)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( darwin )

	/* basic machine hardware */
	MDRV_CPU_ADD(M6809, MASTER_CLOCK/8)        /* 1.5 MHz ? */
	MDRV_CPU_PROGRAM_MAP(darwin_map,0)
	MDRV_CPU_VBLANK_INT_HACK(brkthru_interrupt,2)

	MDRV_CPU_ADD(M6809, MASTER_CLOCK/8)		/* 1.5 MHz ? */
	MDRV_CPU_PROGRAM_MAP(sound_map,0)

	/* video hardware */
	MDRV_GFXDECODE(brkthru)
	MDRV_PALETTE_LENGTH(256)

	MDRV_SCREEN_ADD("main", RASTER)
	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 384, 8, 248, 272, 8, 248)
	/* frames per second, vblank duration
        Horizontal video frequency:
            HSync = Dot Clock / Horizontal Frame Length
                  = Xtal /2   / (HDisplay + HBlank)
                  = 12MHz/2   / (240 + 144)
                  = 15.625kHz
        Vertical Video frequency:
            VSync = HSync / Vertical Frame Length
                  = HSync / (VDisplay + VBlank)
                  = 15.625kHz / (240 + 32)
                  = 57.444855Hz
    tuned by Shingo SUZUKI(VSyncMAME Project) 2000/10/19 */
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)

	MDRV_PALETTE_INIT(brkthru)
	MDRV_VIDEO_START(brkthru)
	MDRV_VIDEO_UPDATE(brkthru)

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

	MDRV_SOUND_ADD(YM2203, MASTER_CLOCK/8)
	MDRV_SOUND_ROUTE(0, "mono", 0.10)
	MDRV_SOUND_ROUTE(1, "mono", 0.10)
	MDRV_SOUND_ROUTE(2, "mono", 0.10)
	MDRV_SOUND_ROUTE(3, "mono", 0.50)

	MDRV_SOUND_ADD(YM3526, MASTER_CLOCK/4)
	MDRV_SOUND_CONFIG(ym3526_interface)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END



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

  Game driver(s)

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

ROM_START( brkthru )
	ROM_REGION( 0x20000, REGION_CPU1, 0 )     /* 64k for main CPU + 64k for banked ROMs */
	ROM_LOAD( "brkthru.1",    0x04000, 0x4000, CRC(cfb4265f) SHA1(4cd748fa06fd2727de1694196912d605672d4883) )
	ROM_LOAD( "brkthru.2",    0x08000, 0x8000, CRC(fa8246d9) SHA1(d6da03b2a3d8a83411191351ee110b89352a3ead) )
	ROM_LOAD( "brkthru.4",    0x10000, 0x8000, CRC(8cabf252) SHA1(45e8847b2e6b278989f67e0b27b827a9b3b92581) )
	ROM_LOAD( "brkthru.3",    0x18000, 0x8000, CRC(2f2c40c2) SHA1(fcb78941453520a3a07f272127dae7c2cc1999ea) )

	ROM_REGION( 0x02000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "brkthru.12",   0x00000, 0x2000, CRC(58c0b29b) SHA1(9dc075f8afae7e8fe164a9fe325e9948cdc7e4bb) )	/* characters */

	ROM_REGION( 0x20000, REGION_GFX2, ROMREGION_DISPOSE )
	/* background */
	/* we do a lot of scatter loading here, to place the data in a format */
	/* which can be decoded by MAME's standard functions */
	ROM_LOAD( "brkthru.7",    0x00000, 0x4000, CRC(920cc56a) SHA1(c75806691073f1f3bd54dcaca4c14155ecf4471d) )	/* bitplanes 1,2 for bank 1,2 */
	ROM_CONTINUE(             0x08000, 0x4000 )				/* bitplanes 1,2 for bank 3,4 */
	ROM_LOAD( "brkthru.6",    0x10000, 0x4000, CRC(fd3cee40) SHA1(3308b96bb69e0fa6dffbdff296273fafa16d5e70) )	/* bitplanes 1,2 for bank 5,6 */
	ROM_CONTINUE(             0x18000, 0x4000 )				/* bitplanes 1,2 for bank 7,8 */
	ROM_LOAD( "brkthru.8",    0x04000, 0x1000, CRC(f67ee64e) SHA1(75634bd481ae44b8aa02acb4f9b4d7ff973a4c71) )	/* bitplane 3 for bank 1,2 */
	ROM_CONTINUE(             0x06000, 0x1000 )
	ROM_CONTINUE(             0x0c000, 0x1000 )				/* bitplane 3 for bank 3,4 */
	ROM_CONTINUE(             0x0e000, 0x1000 )
	ROM_CONTINUE(             0x14000, 0x1000 )				/* bitplane 3 for bank 5,6 */
	ROM_CONTINUE(             0x16000, 0x1000 )
	ROM_CONTINUE(             0x1c000, 0x1000 )				/* bitplane 3 for bank 7,8 */
	ROM_CONTINUE(             0x1e000, 0x1000 )

	ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE )
	ROM_LOAD( "brkthru.9",    0x00000, 0x8000, CRC(f54e50a7) SHA1(eccf4d859c26944271ec6586644b4730a72851fd) )	/* sprites */
	ROM_LOAD( "brkthru.10",   0x08000, 0x8000, CRC(fd156945) SHA1(a0575a4164217e63317886176ab7e59d255fc771) )
	ROM_LOAD( "brkthru.11",   0x10000, 0x8000, CRC(c152a99b) SHA1(f96133aa01219eda357b9e906bd9577dbfe359c0) )

	ROM_REGION( 0x0200, REGION_PROMS, 0 )
	ROM_LOAD( "brkthru.13",   0x0000, 0x0100, CRC(aae44269) SHA1(7c66aeb93577104109d264ee8b848254256c81eb) ) /* red and green component */
	ROM_LOAD( "brkthru.14",   0x0100, 0x0100, CRC(f2d4822a) SHA1(f535e91b87ff01f2a73662856fd3f72907ca62e9) ) /* blue component */

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "brkthru.5",    0x8000, 0x8000, CRC(c309435f) SHA1(82914004c2b169a7c31aa49af83a699ebbc7b33f) )
ROM_END

ROM_START( brkthruj )
	ROM_REGION( 0x20000, REGION_CPU1, 0 )     /* 64k for main CPU + 64k for banked ROMs */
	ROM_LOAD( "1",            0x04000, 0x4000, CRC(09bd60ee) SHA1(9591a4c89bb69d5615a5d6b29c47e6b17350c007) )
	ROM_LOAD( "2",            0x08000, 0x8000, CRC(f2b2cd1c) SHA1(dafccc74310876bc1c88de7f3c86f93ed8a0eb62) )
	ROM_LOAD( "4",            0x10000, 0x8000, CRC(b42b3359) SHA1(c1da550e0f7cc52721802c7c0f2770ef0087e28b) )
	ROM_LOAD( "brkthru.3",    0x18000, 0x8000, CRC(2f2c40c2) SHA1(fcb78941453520a3a07f272127dae7c2cc1999ea) )

	ROM_REGION( 0x02000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "12",   0x00000, 0x2000, CRC(3d9a7003) SHA1(2e5de982eb75ac75312fb29bb4cb2ed12ec0fd56) )	/* characters */

	ROM_REGION( 0x20000, REGION_GFX2, ROMREGION_DISPOSE )
	/* background */
	/* we do a lot of scatter loading here, to place the data in a format */
	/* which can be decoded by MAME's standard functions */
	ROM_LOAD( "brkthru.7",    0x00000, 0x4000, CRC(920cc56a) SHA1(c75806691073f1f3bd54dcaca4c14155ecf4471d) )	/* bitplanes 1,2 for bank 1,2 */
	ROM_CONTINUE(             0x08000, 0x4000 )				/* bitplanes 1,2 for bank 3,4 */
	ROM_LOAD( "6",            0x10000, 0x4000, CRC(cb47b395) SHA1(bf5459d696e863644f13c8b0786b8f45caf6ceb6) )	/* bitplanes 1,2 for bank 5,6 */
	ROM_CONTINUE(             0x18000, 0x4000 )				/* bitplanes 1,2 for bank 7,8 */
	ROM_LOAD( "8",            0x04000, 0x1000, CRC(5e5a2cd7) SHA1(f1782d67b924b4b89bcb6602e970c28fbeaab522) )	/* bitplane 3 for bank 1,2 */
	ROM_CONTINUE(             0x06000, 0x1000 )
	ROM_CONTINUE(             0x0c000, 0x1000 )				/* bitplane 3 for bank 3,4 */
	ROM_CONTINUE(             0x0e000, 0x1000 )
	ROM_CONTINUE(             0x14000, 0x1000 )				/* bitplane 3 for bank 5,6 */
	ROM_CONTINUE(             0x16000, 0x1000 )
	ROM_CONTINUE(             0x1c000, 0x1000 )				/* bitplane 3 for bank 7,8 */
	ROM_CONTINUE(             0x1e000, 0x1000 )

	ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE )
	ROM_LOAD( "brkthru.9",    0x00000, 0x8000, CRC(f54e50a7) SHA1(eccf4d859c26944271ec6586644b4730a72851fd) )	/* sprites */
	ROM_LOAD( "brkthru.10",   0x08000, 0x8000, CRC(fd156945) SHA1(a0575a4164217e63317886176ab7e59d255fc771) )
	ROM_LOAD( "brkthru.11",   0x10000, 0x8000, CRC(c152a99b) SHA1(f96133aa01219eda357b9e906bd9577dbfe359c0) )

	ROM_REGION( 0x0200, REGION_PROMS, 0 )
	ROM_LOAD( "brkthru.13",   0x0000, 0x0100, CRC(aae44269) SHA1(7c66aeb93577104109d264ee8b848254256c81eb) ) /* red and green component */
	ROM_LOAD( "brkthru.14",   0x0100, 0x0100, CRC(f2d4822a) SHA1(f535e91b87ff01f2a73662856fd3f72907ca62e9) ) /* blue component */

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "brkthru.5",    0x8000, 0x8000, CRC(c309435f) SHA1(82914004c2b169a7c31aa49af83a699ebbc7b33f) )
ROM_END

/* bootleg, changed prg rom fails test, probably just the japanese version modified to have english title */
ROM_START( forcebrk )
	ROM_REGION( 0x20000, REGION_CPU1, 0 )     /* 64k for main CPU + 64k for banked ROMs */
	ROM_LOAD( "1",            0x04000, 0x4000, CRC(09bd60ee) SHA1(9591a4c89bb69d5615a5d6b29c47e6b17350c007) )
	ROM_LOAD( "2",            0x08000, 0x8000, CRC(f2b2cd1c) SHA1(dafccc74310876bc1c88de7f3c86f93ed8a0eb62) )
	ROM_LOAD( "forcebrk4",    0x10000, 0x8000, CRC(b4838c19) SHA1(b32f183ee042872a6eb6689aab219108d37829e4) )
	ROM_LOAD( "brkthru.3",    0x18000, 0x8000, CRC(2f2c40c2) SHA1(fcb78941453520a3a07f272127dae7c2cc1999ea) )

	ROM_REGION( 0x02000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "12",           0x00000, 0x2000, CRC(3d9a7003) SHA1(2e5de982eb75ac75312fb29bb4cb2ed12ec0fd56) )	/* characters */

	ROM_REGION( 0x20000, REGION_GFX2, ROMREGION_DISPOSE )
	/* background */
	/* we do a lot of scatter loading here, to place the data in a format */
	/* which can be decoded by MAME's standard functions */
	ROM_LOAD( "brkthru.7",    0x00000, 0x4000, CRC(920cc56a) SHA1(c75806691073f1f3bd54dcaca4c14155ecf4471d) )	/* bitplanes 1,2 for bank 1,2 */
	ROM_CONTINUE(             0x08000, 0x4000 )				/* bitplanes 1,2 for bank 3,4 */
	ROM_LOAD( "forcebrk6",    0x10000, 0x4000, CRC(08bca16a) SHA1(d5dcf5cf68a5090f467c076abb1b9cf0baffe272) )	/* bitplanes 1,2 for bank 5,6 */
	ROM_CONTINUE(             0x18000, 0x4000 )				/* bitplanes 1,2 for bank 7,8 */
	ROM_LOAD( "forcebrk8",    0x04000, 0x1000, CRC(a3a1131e) SHA1(e0b73c8b2c8ea6b31418bc642830875c5985f800) )	/* bitplane 3 for bank 1,2 */
	ROM_CONTINUE(             0x06000, 0x1000 )
	ROM_CONTINUE(             0x0c000, 0x1000 )				/* bitplane 3 for bank 3,4 */
	ROM_CONTINUE(             0x0e000, 0x1000 )
	ROM_CONTINUE(             0x14000, 0x1000 )				/* bitplane 3 for bank 5,6 */
	ROM_CONTINUE(             0x16000, 0x1000 )
	ROM_CONTINUE(             0x1c000, 0x1000 )				/* bitplane 3 for bank 7,8 */
	ROM_CONTINUE(             0x1e000, 0x1000 )

	ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE )
	ROM_LOAD( "brkthru.9",    0x00000, 0x8000, CRC(f54e50a7) SHA1(eccf4d859c26944271ec6586644b4730a72851fd) )	/* sprites */
	ROM_LOAD( "brkthru.10",   0x08000, 0x8000, CRC(fd156945) SHA1(a0575a4164217e63317886176ab7e59d255fc771) )
	ROM_LOAD( "brkthru.11",   0x10000, 0x8000, CRC(c152a99b) SHA1(f96133aa01219eda357b9e906bd9577dbfe359c0) )

	ROM_REGION( 0x0200, REGION_PROMS, 0 )
	ROM_LOAD( "brkthru.13",   0x0000, 0x0100, CRC(aae44269) SHA1(7c66aeb93577104109d264ee8b848254256c81eb) ) /* red and green component */
	ROM_LOAD( "brkthru.14",   0x0100, 0x0100, CRC(f2d4822a) SHA1(f535e91b87ff01f2a73662856fd3f72907ca62e9) ) /* blue component */

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "brkthru.5",    0x8000, 0x8000, CRC(c309435f) SHA1(82914004c2b169a7c31aa49af83a699ebbc7b33f) )
ROM_END

ROM_START( darwin )
	ROM_REGION( 0x20000, REGION_CPU1, 0 )     /* 64k for main CPU + 64k for banked ROMs */
	ROM_LOAD( "darw_04.rom",  0x04000, 0x4000, CRC(0eabf21c) SHA1(ccad6b30fe9361e8a21b8aaf8116aa85f9e6bb19) )
	ROM_LOAD( "darw_05.rom",  0x08000, 0x8000, CRC(e771f864) SHA1(8ba9f97c6abf035ceaf9f5505495708506f1b0c5) )
	ROM_LOAD( "darw_07.rom",  0x10000, 0x8000, CRC(97ac052c) SHA1(8baa117472d46b99e5946f095b869de9b5c48f9a) )
	ROM_LOAD( "darw_06.rom",  0x18000, 0x8000, CRC(2a9fb208) SHA1(f04a5502600e49e2494a87ec65a44a2843441d37) )

	ROM_REGION( 0x02000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD( "darw_09.rom",  0x00000, 0x2000, CRC(067b4cf5) SHA1(fc752bb72e4850b71565afd1df0cbb4f732f131c) )   /* characters */

	ROM_REGION( 0x20000, REGION_GFX2, ROMREGION_DISPOSE )
	/* background */
	/* we do a lot of scatter loading here, to place the data in a format */
	/* which can be decoded by MAME's standard functions */
	ROM_LOAD( "darw_03.rom",  0x00000, 0x4000, CRC(57d0350d) SHA1(6f904047485e669afb5f4b590818743111f010c6) )	/* bitplanes 1,2 for bank 1,2 */
	ROM_CONTINUE(             0x08000, 0x4000 )				/* bitplanes 1,2 for bank 3,4 */
	ROM_LOAD( "darw_02.rom",  0x10000, 0x4000, CRC(559a71ab) SHA1(a28de25e89e0d68332f4095b988827a9cb72c675) )	/* bitplanes 1,2 for bank 5,6 */
	ROM_CONTINUE(             0x18000, 0x4000 )				/* bitplanes 1,2 for bank 7,8 */
	ROM_LOAD( "darw_01.rom",  0x04000, 0x1000, CRC(15a16973) SHA1(5eb978a32be88176936e5d37b6ec18820d9720d8) )	/* bitplane 3 for bank 1,2 */
	ROM_CONTINUE(             0x06000, 0x1000 )
	ROM_CONTINUE(             0x0c000, 0x1000 )				/* bitplane 3 for bank 3,4 */
	ROM_CONTINUE(             0x0e000, 0x1000 )
	ROM_CONTINUE(             0x14000, 0x1000 )				/* bitplane 3 for bank 5,6 */
	ROM_CONTINUE(             0x16000, 0x1000 )
	ROM_CONTINUE(             0x1c000, 0x1000 )				/* bitplane 3 for bank 7,8 */
	ROM_CONTINUE(             0x1e000, 0x1000 )

	ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE )
	ROM_LOAD( "darw_10.rom",  0x00000, 0x8000, CRC(487a014c) SHA1(c9543df8115088b02019e76a6473ecc5f645a836) )	/* sprites */
	ROM_LOAD( "darw_11.rom",  0x08000, 0x8000, CRC(548ce2d1) SHA1(3b1757c70346ab4ee19ec85e7ae5137f8ccf446f) )
	ROM_LOAD( "darw_12.rom",  0x10000, 0x8000, CRC(faba5fef) SHA1(848da4d4888f0218b737f1dc9b62944f68349a43) )

	ROM_REGION( 0x0200, REGION_PROMS, 0 )
	ROM_LOAD( "df.12",   0x0000, 0x0100, CRC(89b952ef) SHA1(77dc4020a2e25f81fae1182d58993cf09d13af00) ) /* red and green component */
	ROM_LOAD( "df.13",   0x0100, 0x0100, CRC(d595e91d) SHA1(5e9793f6602455c79afdc855cd13183a7f48ab1e) ) /* blue component */

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "darw_08.rom",  0x8000, 0x8000, CRC(6b580d58) SHA1(a70aebc6b4a291b4adddbb41d092b2682fc2d421) )
ROM_END



GAME( 1986, brkthru,  0,       brkthru, brkthru,  0, ROT0,   "Data East USA", "Break Thru (US)", 0 )
GAME( 1986, brkthruj, brkthru, brkthru, brkthruj, 0, ROT0,   "Data East Corporation", "Kyohkoh-Toppa (Japan)", 0 )
GAME( 1986, forcebrk, brkthru, brkthru, brkthruj, 0, ROT0,   "bootleg", "Force Break (bootleg)", 0 )
GAME( 1986, darwin,   0,       darwin,  darwin,   0, ROT270, "Data East Corporation", "Darwin 4078 (Japan)", 0 )