summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/bigevglf.cpp
blob: c58b30e89618a5d45851fbdf100305e8e0fdee92 (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
// license:GPL-2.0+
// copyright-holders:Jarek Burczynski, Tomasz Slanina
/***************************************************************************
Big Event Golf (c) Taito 1986

driver by Jarek Burczynski
          Tomasz Slanina


****************************************************************************


Taito 1986  M4300056B

K1100156A Sound
J1100068A
                                YM2149     2016
                                MSM5232    A67-16
                                Z80        A67-17
                                           A67-18
                                8MHz
-----------------------------------------------------
K1100215A CPU
J1100066A

2064
A67-21
A67-20      A67-03
Z80         A67-04
            A67-05
            A67-06                          2016
            A67-07
            A67-08
            A67-09
            A67-10-2          2016
                              A67-11
            10MHz             Z80
                                   A67-19-1 (68705P5)
----------------------------------------------------
K1100215A VIDEO
J1100072A

                                 41464            2148
  93422                          41464            2148
  93422                          41464            2148
  93422                          41464
  93422                          41464
                                 41464
                                 41464
                                 41464


       A67-12-1                2016
       A67-13-1
       A67-14-1     2016
       A67-15-1                      18.432MHz

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

#include "emu.h"
#include "includes/bigevglf.h"

#include "cpu/m6805/m6805.h"
#include "cpu/z80/z80.h"
#include "machine/input_merger.h"
#include "sound/ay8910.h"
#include "sound/dac.h"
#include "sound/volt_reg.h"
#include "speaker.h"


WRITE8_MEMBER(bigevglf_state::beg_banking_w)
{
	m_beg_bank = data;

/* d0-d3 connect to A11-A14 of the ROMs (via ls273 latch)
   d4-d7 select one of ROMs (via ls273(above) and then ls154)
*/
	membank("bank1")->set_entry(m_beg_bank & 0xff); /* empty sockets for IC37-IC44 ROMS */
}

READ8_MEMBER(bigevglf_state::soundstate_r)
{
	uint8_t sound_state = m_soundlatch[0]->pending_r() ? 0 : 1;
	sound_state |= m_soundlatch[1]->pending_r() ? 2 : 0;
	return sound_state;
}

TIMER_CALLBACK_MEMBER(bigevglf_state::deferred_ls74_w)
{
	int offs = (param >> 8) & 255;
	int data = param & 255;
	m_beg13_ls74[offs] = data;
}

/* do this on a timer to let the CPUs synchronize */
WRITE8_MEMBER(bigevglf_state::beg13_a_clr_w)
{
	machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::deferred_ls74_w),this), (0 << 8) | 0);
}

WRITE8_MEMBER(bigevglf_state::beg13_b_clr_w)
{
	machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::deferred_ls74_w),this), (1 << 8) | 0);
}

WRITE8_MEMBER(bigevglf_state::beg13_a_set_w)
{
	machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::deferred_ls74_w),this), (0 << 8) | 1);
}

WRITE8_MEMBER(bigevglf_state::beg13_b_set_w)
{
	machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::deferred_ls74_w),this), (1 << 8) | 1);
}

READ8_MEMBER(bigevglf_state::beg_status_r)
{
/* d0 = Q of 74ls74 IC13(partA)
   d1 = Q of 74ls74 IC13(partB)
   d2 =
   d3 =
   d4 =
   d5 =
   d6 = d7 = 10MHz/2

*/
	/* set a timer to force synchronization after the read */
	machine().scheduler().synchronize();
	return (m_beg13_ls74[0] << 0) | (m_beg13_ls74[1] << 1);
}


READ8_MEMBER(bigevglf_state::beg_trackball_x_r)
{
	static const char *const portx_name[2] = { "P1X", "P2X" };

	return ioport(portx_name[m_port_select])->read();
}

READ8_MEMBER(bigevglf_state::beg_trackball_y_r)
{
	static const char *const porty_name[2] = { "P1Y", "P2Y" };

	return ioport(porty_name[m_port_select])->read();
}

WRITE8_MEMBER(bigevglf_state::beg_port08_w)
{
	m_port_select = (data & 0x04) >> 2;
}


static INPUT_PORTS_START( bigevglf )
	PORT_START("PORT00")        /* port 00 on sub cpu */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_TILT )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE1 )

	PORT_START("PORT04")        /* port 04 on sub cpu - bit 0 and bit 1 are coin inputs */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )

	PORT_START("DSW1")          /* port 05 on sub cpu */
	PORT_DIPNAME( 0x01,   0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:1")
	PORT_DIPSETTING(      0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(      0x01, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x02,   0x02, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:2")
	PORT_DIPSETTING(      0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(      0x00, DEF_STR( On ) )
	PORT_SERVICE_DIPLOC(  0x04, IP_ACTIVE_LOW, "SW1:3" )
	PORT_DIPNAME( 0x08,   0x08, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:4")
	PORT_DIPSETTING(      0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(      0x08, DEF_STR( On ) )
	PORT_DIPNAME( 0xf0,   0xf0, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:5,6,7,8")
	PORT_DIPSETTING(      0x50, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(      0xf0, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(      0x00, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(      0xa0, DEF_STR( 1C_2C ) )

	PORT_START("DSW2")          /* port 06 on sub cpu */
	PORT_DIPNAME( 0x03,   0x03, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(      0x01, DEF_STR( Easy ) )
	PORT_DIPSETTING(      0x03, DEF_STR( Normal ) )
	PORT_DIPSETTING(      0x02, DEF_STR( Hard ) )
	PORT_DIPSETTING(      0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x0c,   0x0c, "Holes" ) PORT_DIPLOCATION("SW2:3,4")
	PORT_DIPSETTING(      0x04, "1" )
	PORT_DIPSETTING(      0x08, "2" )
	PORT_DIPSETTING(      0x0c, "3" )
	PORT_DIPSETTING(      0x00, "4" )
	PORT_DIPNAME( 0x10,   0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW2:5") /* Also changes the copyright on the title screen */
	PORT_DIPSETTING(      0x00, DEF_STR( English ) )                            /* (c) 1986 Taito America Corp. */
	PORT_DIPSETTING(      0x10, DEF_STR( Japanese ) )                           /* (c) Taito Corporation 1986 */
	PORT_DIPNAME( 0xe0,   0xa0, "Full game price (credits)" ) PORT_DIPLOCATION("SW2:6,7,8")
	PORT_DIPSETTING(      0xe0, "3" )
	PORT_DIPSETTING(      0xc0, "4" )
	PORT_DIPSETTING(      0xa0, "5" )
	PORT_DIPSETTING(      0x80, "6" )
	PORT_DIPSETTING(      0x60, "7" )
	PORT_DIPSETTING(      0x40, "8" )
	PORT_DIPSETTING(      0x20, "9" )
	PORT_DIPSETTING(      0x00, "10" )

	PORT_START("P1X")   /* port 02 on sub cpu - muxed port 0 */
	PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_X ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10)

	PORT_START("P1Y")   /* port 03 on sub cpu - muxed port 0 */
	PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10) PORT_REVERSE

	PORT_START("P2X")   /* port 02 on sub cpu - muxed port 1 */
	PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_X ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10) PORT_COCKTAIL

	PORT_START("P2Y")   /* port 03 on sub cpu - muxed port 1 */
	PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(30) PORT_KEYDELTA(10) PORT_REVERSE PORT_COCKTAIL
INPUT_PORTS_END

static INPUT_PORTS_START( bigevglfj )
	PORT_INCLUDE(bigevglf)

	PORT_MODIFY("DSW2")
	PORT_DIPNAME( 0x10,   0x10, DEF_STR( Language ) ) PORT_DIPLOCATION("SW2:5") /* Doesn't change the title screen copyright like the US set */
	PORT_DIPSETTING(      0x00, DEF_STR( English ) )
	PORT_DIPSETTING(      0x10, DEF_STR( Japanese ) )
INPUT_PORTS_END


/*****************************************************************************/
/* Main CPU */

void bigevglf_state::main_map(address_map &map)
{
	map(0x0000, 0xbfff).rom();
	map(0xc000, 0xcfff).ram();
	map(0xd000, 0xd7ff).bankr("bank1");
	map(0xd800, 0xdbff).ram().share("share1"); /* only half of the RAM is accessible, line a10 of IC73 (6116) is GNDed */
	map(0xe000, 0xe7ff).w(this, FUNC(bigevglf_state::bigevglf_palette_w)).share("paletteram");
	map(0xe800, 0xefff).writeonly().share("spriteram1"); /* sprite 'templates' */
	map(0xf000, 0xf0ff).rw(this, FUNC(bigevglf_state::bigevglf_vidram_r), FUNC(bigevglf_state::bigevglf_vidram_w)); /* 41464 (64kB * 8 chips), addressed using ports 1 and 5 */
	map(0xf840, 0xf8ff).ram().share("spriteram2");  /* spriteram (x,y,offset in spriteram1,palette) */
}

void bigevglf_state::bigevglf_portmap(address_map &map)
{
	map.global_mask(0xff);
	map(0x00, 0x00).nopw();    /* video ram enable ???*/
	map(0x01, 0x01).w(this, FUNC(bigevglf_state::bigevglf_gfxcontrol_w));  /* plane select */
	map(0x02, 0x02).w(this, FUNC(bigevglf_state::beg_banking_w));
	map(0x03, 0x03).w(this, FUNC(bigevglf_state::beg13_a_set_w));
	map(0x04, 0x04).w(this, FUNC(bigevglf_state::beg13_b_clr_w));
	map(0x05, 0x05).w(this, FUNC(bigevglf_state::bigevglf_vidram_addr_w));   /* video banking (256 banks) for f000-f0ff area */
	map(0x06, 0x06).r(this, FUNC(bigevglf_state::beg_status_r));
}


/*********************************************************************************/
/* Sub CPU */

void bigevglf_state::sub_map(address_map &map)
{
	map(0x0000, 0x3fff).rom();
	map(0x4000, 0x47ff).ram();
	map(0x8000, 0x83ff).ram().share("share1"); /* shared with main CPU */
}


READ8_MEMBER(bigevglf_state::sub_cpu_mcu_coin_port_r)
{
	/*
	        bit 0 and bit 1 = coin inputs
	        bit 3 and bit 4 = MCU status
	        bit 5           = must toggle, vblank ?

	*/
	m_mcu_coin_bit5 ^= 0x20;
	return
		(ioport("PORT04")->read() & 0x03) |
		((CLEAR_LINE == m_bmcu->host_semaphore_r()) ? 0x08 : 0x00) |
		((CLEAR_LINE != m_bmcu->mcu_semaphore_r()) ? 0x10 : 0x00) |
		m_mcu_coin_bit5;  /* bit 0 and bit 1 - coin inputs */
}

void bigevglf_state::bigevglf_sub_portmap(address_map &map)
{
	map.global_mask(0xff);
	map(0x00, 0x00).portr("PORT00");
	map(0x01, 0x01).nopr();
	map(0x02, 0x02).r(this, FUNC(bigevglf_state::beg_trackball_x_r));
	map(0x03, 0x03).r(this, FUNC(bigevglf_state::beg_trackball_y_r));
	map(0x04, 0x04).r(this, FUNC(bigevglf_state::sub_cpu_mcu_coin_port_r));
	map(0x05, 0x05).portr("DSW1");
	map(0x06, 0x06).portr("DSW2");
	map(0x07, 0x07).nopr();
	map(0x08, 0x08).w(this, FUNC(bigevglf_state::beg_port08_w)); /* muxed port select + other unknown stuff */
	map(0x0b, 0x0b).r(m_bmcu, FUNC(taito68705_mcu_device::data_r));
	map(0x0c, 0x0c).w(m_bmcu, FUNC(taito68705_mcu_device::data_w));
	map(0x0e, 0x0e).nopw(); /* 0-enable MCU, 1-keep reset line ASSERTED; D0 goes to the input of ls74 and the /Q of this ls74 goes to reset line on 68705 */
	map(0x10, 0x17).w(this, FUNC(bigevglf_state::beg13_a_clr_w));
	map(0x18, 0x1f).w(this, FUNC(bigevglf_state::beg13_b_set_w));
	map(0x20, 0x20).r("soundlatch2", FUNC(generic_latch_8_device::read));
	map(0x20, 0x20).w("soundlatch1", FUNC(generic_latch_8_device::write));
	map(0x21, 0x21).r(this, FUNC(bigevglf_state::soundstate_r));
}




/*********************************************************************************/
/* Sound CPU */

void bigevglf_state::sound_map(address_map &map)
{
	map(0x0000, 0xbfff).rom();
	map(0xc000, 0xc7ff).ram();
	map(0xc800, 0xc801).w("aysnd", FUNC(ym2149_device::address_data_w));
	map(0xca00, 0xca0d).w(m_msm, FUNC(msm5232_device::write));
	map(0xcc00, 0xcc00).nopw();
	map(0xce00, 0xce00).nopw();
	map(0xd800, 0xd800).r("soundlatch1", FUNC(generic_latch_8_device::read));
	map(0xd800, 0xd800).w("soundlatch2", FUNC(generic_latch_8_device::write)); /* write to D800 sets bit 1 in status */
	map(0xda00, 0xda00).r(this, FUNC(bigevglf_state::soundstate_r));
	map(0xda00, 0xda00).w("soundnmi", FUNC(input_merger_device::in_set<1>)); // enable NMI
	map(0xdc00, 0xdc00).w("soundnmi", FUNC(input_merger_device::in_clear<1>)); // disable NMI
	map(0xde00, 0xde00).nopr().w("dac", FUNC(dac_byte_interface::write)); /* signed 8-bit DAC &  unknown read */
	map(0xe000, 0xefff).nopr();     /* space for diagnostics ROM */
}




static const gfx_layout gfxlayout =
{
	8,8,
	RGN_FRAC(1,4),
	4,
	{ 0, RGN_FRAC(1,4),RGN_FRAC(2,4),RGN_FRAC(3,4)},
	{ 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
};

static GFXDECODE_START( gfx_bigevglf )
	GFXDECODE_ENTRY( "gfx1", 0, gfxlayout,   0x20*16, 16 )
GFXDECODE_END


void bigevglf_state::machine_start()
{
	save_item(NAME(m_vidram_bank));
	save_item(NAME(m_plane_selected));
	save_item(NAME(m_plane_visible));

	save_item(NAME(m_beg13_ls74));
	save_item(NAME(m_beg_bank));
	save_item(NAME(m_port_select));

	save_item(NAME(m_mcu_coin_bit5));
}

void bigevglf_state::machine_reset()
{
	m_vidram_bank = 0;
	m_plane_selected = 0;
	m_plane_visible = 0;

	m_beg13_ls74[0] = 0;
	m_beg13_ls74[1] = 0;
	m_beg_bank = 0;
	m_port_select = 0;

	m_mcu_coin_bit5 = 0;
}


MACHINE_CONFIG_START(bigevglf_state::bigevglf)

	/* basic machine hardware */
	MCFG_DEVICE_ADD("maincpu", Z80,10000000/2)     /* 5 MHz ? */
	MCFG_DEVICE_PROGRAM_MAP(main_map)
	MCFG_DEVICE_IO_MAP(bigevglf_portmap)
	MCFG_DEVICE_VBLANK_INT_DRIVER("screen", bigevglf_state,  irq0_line_hold)   /* vblank */

	MCFG_DEVICE_ADD("sub", Z80,10000000/2)     /* 5 MHz ? */
	MCFG_DEVICE_PROGRAM_MAP(sub_map)
	MCFG_DEVICE_IO_MAP(bigevglf_sub_portmap)
	MCFG_DEVICE_VBLANK_INT_DRIVER("screen", bigevglf_state,  irq0_line_hold)   /* vblank */

	MCFG_DEVICE_ADD("audiocpu", Z80,8000000/2) /* 4 MHz ? */
	MCFG_DEVICE_PROGRAM_MAP(sound_map)
	MCFG_DEVICE_PERIODIC_INT_DRIVER(bigevglf_state, irq0_line_hold, 2*60)  /* IRQ generated by ???;
	    2 irqs/frame give good music tempo but also SOUND ERROR in test mode,
	    4 irqs/frame give SOUND OK in test mode but music seems to be running too fast */

	MCFG_GENERIC_LATCH_8_ADD("soundlatch1")
	MCFG_GENERIC_LATCH_DATA_PENDING_CB(WRITELINE("soundnmi", input_merger_device, in_w<0>))

	MCFG_GENERIC_LATCH_8_ADD("soundlatch2")

	MCFG_INPUT_MERGER_ALL_HIGH("soundnmi")
	MCFG_INPUT_MERGER_OUTPUT_HANDLER(INPUTLINE("audiocpu", INPUT_LINE_NMI))

	MCFG_DEVICE_ADD("bmcu", TAITO68705_MCU, 2000000) /* ??? */

	MCFG_QUANTUM_TIME(attotime::from_hz(600))   /* 10 CPU slices per frame - interleaving is forced on the fly */


	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
	MCFG_SCREEN_UPDATE_DRIVER(bigevglf_state, screen_update_bigevglf)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_bigevglf)
	MCFG_PALETTE_ADD("palette", 0x800)

	/* sound hardware */
	SPEAKER(config, "mono").front_center();

	MCFG_DEVICE_ADD("aysnd", YM2149, 8000000/4)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)

	MCFG_DEVICE_ADD("msm", MSM5232, 8000000/4)
	MCFG_MSM5232_SET_CAPACITORS(0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6) /* 0.65 (???) uF capacitors */
	MCFG_SOUND_ROUTE(0, "mono", 1.0)    // pin 28  2'-1
	MCFG_SOUND_ROUTE(1, "mono", 1.0)    // pin 29  4'-1
	MCFG_SOUND_ROUTE(2, "mono", 1.0)    // pin 30  8'-1
	MCFG_SOUND_ROUTE(3, "mono", 1.0)    // pin 31 16'-1
	MCFG_SOUND_ROUTE(4, "mono", 1.0)    // pin 36  2'-2
	MCFG_SOUND_ROUTE(5, "mono", 1.0)    // pin 35  4'-2
	MCFG_SOUND_ROUTE(6, "mono", 1.0)    // pin 34  8'-2
	MCFG_SOUND_ROUTE(7, "mono", 1.0)    // pin 33 16'-2
	// pin 1 SOLO  8'       not mapped
	// pin 2 SOLO 16'       not mapped
	// pin 22 Noise Output  not mapped

	MCFG_DEVICE_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) // unknown DAC
	MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
	MCFG_SOUND_ROUTE(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
MACHINE_CONFIG_END

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

  Game driver(s)

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

ROM_START( bigevglf )
	ROM_REGION( 0x90000, "maincpu", 0 )
	ROM_LOAD( "a67-21",   0x00000, 0x8000, CRC(2a62923d) SHA1(7b025180e203f268ae4d11baa18096e0a5704f77))
	ROM_LOAD( "a67-20",   0x08000, 0x4000, CRC(841561b1) SHA1(5d91449e135ef22508194a9543343c29e1c496cf))
	ROM_LOAD( "a67-03",   0x10000, 0x8000, CRC(695b3396) SHA1(2a3738e6bc492a4c68d2e15a2e474f7654aeb94d))
	ROM_LOAD( "a67-04",   0x18000, 0x8000, CRC(b8941902) SHA1(a03e432cbd8ea1df7223ea99ff1db220a57fc698))
	ROM_LOAD( "a67-05",   0x20000, 0x8000, CRC(681f5f4f) SHA1(2a5d8eeaf6ac697d5d4ee15164b6c4b1b81d7a29))
	ROM_LOAD( "a67-06",   0x28000, 0x8000, CRC(026f6fe5) SHA1(923b7d8363e587ef20b6518bee968d378166c76b))
	ROM_LOAD( "a67-07",   0x30000, 0x8000, CRC(27706bed) SHA1(da702c5a098eb106332996ec5d0e2c014782031e))
	ROM_LOAD( "a67-08",   0x38000, 0x8000, CRC(e922023a) SHA1(ea4c4b5e2f82ab20afb15f115e8cbc66d8471927))
	ROM_LOAD( "a67-09",   0x40000, 0x8000, CRC(a9d4263e) SHA1(8c3f2d541583e8e4b22e0beabcd04c5765508535))
	ROM_LOAD( "a67-10",   0x48000, 0x8000, CRC(7c35f4a3) SHA1(de60dc991c67fb7d48314bc8b2c1a27ad040bf1e))

	ROM_REGION( 0x10000, "sub", 0 )
	ROM_LOAD( "a67-11",   0x00000, 0x4000, CRC(a2660d20) SHA1(3d8b670c071862d677d4e30655dcb6b8d830648a))

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "a67-16",   0x0000, 0x4000, CRC(5fb6d22e) SHA1(1701aa94b7f524187fd7213a94535bed3e8b6cc9))
	ROM_LOAD( "a67-17",   0x4000, 0x4000, CRC(9f57deae) SHA1(dbdb3d77c3de0113ef6671aec854e4e44ee162ef))
	ROM_LOAD( "a67-18",   0x8000, 0x4000, CRC(40d54fed) SHA1(bfa0922809bffafec15d3ef59ac8b8ad653860a1))

	ROM_REGION( 0x0800, "bmcu:mcu", 0 )
	ROM_LOAD( "a67_19-1", 0x0000, 0x0800, CRC(25691658) SHA1(aabf47abac43abe2ffed18ead1cb94e587149e6e))

	ROM_REGION( 0x20000, "gfx1", 0 )
	ROM_LOAD( "a67-12",   0x00000, 0x8000, CRC(980cc3c5) SHA1(c35c20cfff0b5cfd5b95742333ae20a2c93371b5))
	ROM_LOAD( "a67-13",   0x08000, 0x8000, CRC(ad6e04af) SHA1(4680d789cf53c4808105ad4f3c70aedb6d8bcf36))
	ROM_LOAD( "a67-14",   0x10000, 0x8000, CRC(d6708cce) SHA1(5b48f9dff2a3e28242dc2004469dc2ac2b5d0321))
	ROM_LOAD( "a67-15",   0x18000, 0x8000, CRC(1d261428) SHA1(0f3e6d83a8a462436fa414de4e1e4306db869d3e))
ROM_END

ROM_START( bigevglfj )
	ROM_REGION( 0x90000, "maincpu", 0 )
	ROM_LOAD( "a67-02-2.10", 0x00000, 0x8000, CRC(b3edbb78) SHA1(7873b1a94cca830f1d1c143376cb49f6e48dbf0b))
	ROM_LOAD( "a67-01-2.9",  0x08000, 0x4000, CRC(7788b5d0) SHA1(f331138352c4d7b4566d342047785ed97e7b5990))
	ROM_LOAD( "a67-03",      0x10000, 0x8000, CRC(695b3396) SHA1(2a3738e6bc492a4c68d2e15a2e474f7654aeb94d))
	ROM_LOAD( "a67-04",      0x18000, 0x8000, CRC(b8941902) SHA1(a03e432cbd8ea1df7223ea99ff1db220a57fc698))
	ROM_LOAD( "a67-05",      0x20000, 0x8000, CRC(681f5f4f) SHA1(2a5d8eeaf6ac697d5d4ee15164b6c4b1b81d7a29))
	ROM_LOAD( "a67-06",      0x28000, 0x8000, CRC(026f6fe5) SHA1(923b7d8363e587ef20b6518bee968d378166c76b))
	ROM_LOAD( "a67-07",      0x30000, 0x8000, CRC(27706bed) SHA1(da702c5a098eb106332996ec5d0e2c014782031e))
	ROM_LOAD( "a67-08",      0x38000, 0x8000, CRC(e922023a) SHA1(ea4c4b5e2f82ab20afb15f115e8cbc66d8471927))
	ROM_LOAD( "a67-09",      0x40000, 0x8000, CRC(a9d4263e) SHA1(8c3f2d541583e8e4b22e0beabcd04c5765508535))
	ROM_LOAD( "a67-10",      0x48000, 0x8000, CRC(7c35f4a3) SHA1(de60dc991c67fb7d48314bc8b2c1a27ad040bf1e))

	ROM_REGION( 0x10000, "sub", 0 )
	ROM_LOAD( "a67-11",   0x00000, 0x4000, CRC(a2660d20) SHA1(3d8b670c071862d677d4e30655dcb6b8d830648a))

	ROM_REGION( 0x10000, "audiocpu", 0 )
	ROM_LOAD( "a67-16",   0x0000, 0x4000, CRC(5fb6d22e) SHA1(1701aa94b7f524187fd7213a94535bed3e8b6cc9))
	ROM_LOAD( "a67-17",   0x4000, 0x4000, CRC(9f57deae) SHA1(dbdb3d77c3de0113ef6671aec854e4e44ee162ef))
	ROM_LOAD( "a67-18",   0x8000, 0x4000, CRC(40d54fed) SHA1(bfa0922809bffafec15d3ef59ac8b8ad653860a1))

	ROM_REGION( 0x0800, "bmcu:mcu", 0 )
	ROM_LOAD( "a67_19-1", 0x0000, 0x0800, CRC(25691658) SHA1(aabf47abac43abe2ffed18ead1cb94e587149e6e))

	ROM_REGION( 0x20000, "gfx1", 0 )
	ROM_LOAD( "a67-12",   0x00000, 0x8000, CRC(980cc3c5) SHA1(c35c20cfff0b5cfd5b95742333ae20a2c93371b5))
	ROM_LOAD( "a67-13",   0x08000, 0x8000, CRC(ad6e04af) SHA1(4680d789cf53c4808105ad4f3c70aedb6d8bcf36))
	ROM_LOAD( "a67-14",   0x10000, 0x8000, CRC(d6708cce) SHA1(5b48f9dff2a3e28242dc2004469dc2ac2b5d0321))
	ROM_LOAD( "a67-15",   0x18000, 0x8000, CRC(1d261428) SHA1(0f3e6d83a8a462436fa414de4e1e4306db869d3e))
ROM_END

void bigevglf_state::init_bigevglf()
{
	uint8_t *ROM = memregion("maincpu")->base();
	membank("bank1")->configure_entries(0, 0xff, &ROM[0x10000], 0x800);
}

GAME( 1986, bigevglf,  0,        bigevglf, bigevglf,  bigevglf_state, init_bigevglf, ROT270, "Taito America Corporation", "Big Event Golf (US)",    MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
GAME( 1986, bigevglfj, bigevglf, bigevglf, bigevglfj, bigevglf_state, init_bigevglf, ROT270, "Taito Corporation",         "Big Event Golf (Japan)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )