/
spiders.cpp
670 lines (528 loc) · 24.1 KB
/
spiders.cpp
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
661
662
663
664
665
666
667
668
669
670
// license:BSD-3-Clause
// copyright-holders:K.Wilkins,Zsolt Vasvari
/***************************************************************************
Sigma Spiders hardware
original driver by K.Wilkins May 1998
updates by Zsolt Vasvari
Games Supported:
* Spiders (2 sets)
* Spinner (bootleg)
Known bugs:
* None at this time
Memory map information
----------------------
Main CPU - Read Range
$0000-$1bff Video Memory (bit0)
$4000-$5bff Video Memory (bit1)
$8000-$9bff Video Memory (bit2)
$c000-$c001 6845 CRT Controller (mc6845)
$c020-$c027 NVRAM
$c044-$c047 MC6821 PIA 1 (Control input port - all input)
$c048-$c04b MC6821 PIA 2 (Sprite data port - see machine/spiders.c)
$c050-$c053 MC6821 PIA 3 (Sound control - all output)
$c060 Dip Switch 1
$c080 Dip Switch 2
$c0a0 Dip Switch 3
$c100-ffff ROM SPACE
Main CPU - Write Range
$0000-$1bff Video Memory (bit0)
$4000-$5bff Video Memory (bit1)
$8000-$9bff Video Memory (bit2)
$c000-$c001 6845 CRT Controller (mc6845)
$c044-$c047 MC6821 PIA 1
$c048-$c04b MC6821 PIA 2 (Video port)
$c050-$c053 MC6821 PIA 3
DIP SWITCH 1
------------
1 2 3 4 5 6 7 8 COIN/CREDIT
ON ON ON FREE PLAY
ON ON OFF 1/2
ON OFF ON 1/3
OFF ON ON 2/1
ON OFF OFF 4/5
OFF OFF OFF 1/1
DIP SWITCH 2
------------
1 2 3 4 5 6 7 8
ON ON MODE A A'
ON OFF A B'
OFF ON B A'
OFF OFF B B'
ON ON 14 # OF SPIDERS WHICH LAND TO
ON OFF 20 COMPLETE SPIDER BELT
OFF ON 26
OFF OFF 16
ON 4 # 0F SPARE GUNS
OFF 3
ON ON NONE SCORE FOR BONUS GUN
ON OFF 20K
OFF ON 25K
OFF OFF 15K
ON GIANT SPIDER AFTER FIRST SCREEN
OFF GIANT SPIDER AFTER EVERY SCREEN
PATTERN 1 2 3 4 5 6 7 8 9 10 11 12 13 14
MODE A 27 36 45 54 63 72 81 98 45 54 63 72 81 98 PCS
MODE B 20 27 34 41 48 55 62 69 34 41 48 55 62 69 PCS
MODE A' 1 1 1 3.5 3.5 4 4.5 5 1 3.5 3.5 4 4.5 5 SECONDS
MODE B' .7 .7 .7 2 3 3.2 3.4 4 .7 2 3 2.3 3.4 4 SECONDS
MODE A & B FOR THE NUMBER OF GROWABLE COCOONS
MODE A' & B' FOR THE FREQUENCY OF SPIDERS APPEARANCE
DIP SWITCH 3
------------
1 2 3 4 5 6 7 8
X VIDEO FLIP
ON UPRIGHT
OFF TABLE
SWITCHES 3,4,5 FOR ADJUSTING PICTURE VERTICALLY
SWITCHES 6,7,8 FOR ADJUSTING PICTURE HORIZONTALLY
Unpopulated Switches
--------------------
PS1 (Display Crosshatch) - Connected to PIA1 CB1 via pull-up
PS2 (Coin input, bypass counter) - Connected to PIA1 PA1 via pull-up and invertor
PS3 (Display coin counter) - Connected to PIA1 PA2 via pull-up and invertor
Graphic notes
-------------
Following roms appear to have graphic data
* Mapped in main CPU space
* SP1.BIN - Appears to have some sprites in it.
* SP2.BIN - Appears to have some 16x16 sprites. (Includes the word SIGMA)
* SP3.BIN - Appears to have 2-4 sprites 16x16 - spiders
* SP4.BIN - CPU Code 6809 - Main
SP5.BIN - Some 8x8 and 16x16 tiles/sprites
SP6.BIN - Some 8x8 tiles
SP7.BIN - Tiles/Sprites 8x8
SP8.BIN - Tiles/Sprites 8x8
SP9A.BIN - Tiles/Sprites 8x8
SP9B.BIN - Tiles/Sprites 8x8
SP10A.BIN - Tiles/Sprites 8x8
SP10B.BIN - CPU Code 6802 - Sound
Spiders has a fully bitmapped display and all sprite drawing is handled by the CPU
hence no gfxdecode is done on the sprite ROMS, the CPU accesses them via PIA2.
Screen is arranged in three memory areas with three bits being combined from each
area to produce a 3bit colour send directly to the screen.
$0000-$1bff, $4000-$5bff, $8000-$9bff Bank 0
$2000-$3bff, %6000-$7bff, $a000-$bbff Bank 1
The game normally runs from bank 0 only, but when lots of screen changes are required
e.g spider or explosion then it implements a double buffered scheme with bank 1.
The ram bank for screens is continuous from $0000-$bfff but is physically arranged
as 3 banks of 16k (8x16k DRAM!). The CPU stack/variables etc are stored in the unused
spaces between screens.
CODE NOTES
----------
6809 Data page = $1c00 (DP=1c)
Known data page contents
$05 - Dip switch 1 copy
$06 - Dip switch 2 copy (inverted)
$07 - Dip switch 3 copy
$18 - Bonus Gun Score
$1d - Spiders to complete belt after dipsw decode
$c496 - Wait for vblank ($c04a bit 7 goes high)
$f9cf - Clear screen (Bank0&1)
$c8c6 - RAM test of sorts, called from IRQ handler?
$de2f - Delay loop.
$f9bb - Memory clearance routine
$c761 - Partial DipSW decode
$F987 - Addresses table at $f98d containing four structs:
3c 0C 04 0D 80 (Inverted screen bank 0)
34 0C 00 0D 00 (Normal screen bank 0)
3C 0C 40 0D 80 (Inverted screen bank 1)
34 0C 44 0D 00 (Inverted screen bank 1)
XX Written to PIA2 Reg 3 - B control
XX XX Written to CRTC addr/data
XX XX Written to CRTC addr/data
These tables are used for frame flipping
Video access port definition (On PIA 2)
Bit 7 6 5 4 3 2 1 0
X Mode Setup/Read 1/0
X X Latch select (see below)
X X X X Data nibble
When in setup mode data is clocked into the latch by a read from port A
When in read mode the read from port A auto increments the address.
Latch 0 - Low byte low nibble
1 - Low byte high nibble
2 - High order low nibble
3 - High order high nibble
***************************************************************************/
#include "emu.h"
#include "spiders.h"
#include "cpu/m6800/m6800.h"
#include "cpu/m6809/m6809.h"
#include "machine/74123.h"
#include "machine/input_merger.h"
#include "machine/nvram.h"
#include "machine/rescap.h"
#include "video/mc6845.h"
#include "screen.h"
#define MAIN_CPU_MASTER_CLOCK (11200000)
#define PIXEL_CLOCK (MAIN_CPU_MASTER_CLOCK / 2)
#define CRTC_CLOCK (MAIN_CPU_MASTER_CLOCK / 16)
/*************************************
*
* PIA1 - Main CPU
*
*************************************/
INTERRUPT_GEN_MEMBER(spiders_state::update_pia_1)
{
/* update the different PIA pins from the input ports */
/* CA1 - copy of PA1 (COIN1) */
m_pia[0]->ca1_w(ioport("IN0")->read() & 0x02);
/* CA2 - copy of PA0 (SERVICE1) */
m_pia[0]->ca2_w(ioport("IN0")->read() & 0x01);
/* CB1 - (crosshatch) */
m_pia[0]->cb1_w(ioport("XHATCH")->read());
/* CB2 - NOT CONNECTED */
}
/*************************************
*
* IC60 - 74123
*
* This timer is responsible for
* delaying the setting of PIA2's
* CA1 line. This delay ensures that
* CA1 is only changed in the VBLANK
* region, but not in HBLANK
*
*************************************/
void spiders_state::ic60_74123_output_changed(int state)
{
m_pia[1]->ca1_w(state);
}
/*************************************
*
* Machine start
*
*************************************/
void spiders_state::machine_start()
{
/* setup for save states */
save_item(NAME(m_flipscreen));
save_item(NAME(m_gfx_rom_address));
save_item(NAME(m_gfx_rom_ctrl_mode));
save_item(NAME(m_gfx_rom_ctrl_latch));
save_item(NAME(m_gfx_rom_ctrl_data));
}
/*************************************
*
* Video system
*
*************************************/
void spiders_state::flipscreen_w(int state)
{
m_flipscreen = state;
}
MC6845_UPDATE_ROW( spiders_state::crtc_update_row )
{
uint8_t x = 0;
for (uint8_t cx = 0; cx < x_count; cx++)
{
/* the memory is hooked up to the MA, RA lines this way */
offs_t offs = ((ma << 3) & 0x3f00) |
((ra << 5) & 0x00e0) |
((ma << 0) & 0x001f);
if (m_flipscreen)
offs = offs ^ 0x3fff;
uint8_t data1 = m_ram[0x0000 | offs];
uint8_t data2 = m_ram[0x4000 | offs];
uint8_t data3 = m_ram[0x8000 | offs];
for (int i = 0; i < 8; i++)
{
uint8_t color;
if (m_flipscreen)
{
color = ((data3 & 0x80) >> 5) |
((data2 & 0x80) >> 6) |
((data1 & 0x80) >> 7);
data1 <<= 1;
data2 <<= 1;
data3 <<= 1;
}
else
{
color = ((data3 & 0x01) << 2) |
((data2 & 0x01) << 1) |
((data1 & 0x01) << 0);
data1 >>= 1;
data2 >>= 1;
data3 >>= 1;
}
bitmap.pix(y, x) = m_palette->pen_color(color);
x++;
}
ma++;
}
}
/*************************************
*
* Graphics ROM access - see the
* comments section for description
*
*************************************/
void spiders_state::gfx_rom_intf_w(uint8_t data)
{
m_gfx_rom_ctrl_mode = ( data >> 7) & 0x01;
m_gfx_rom_ctrl_latch = ( data >> 4) & 0x03;
m_gfx_rom_ctrl_data = (~data >> 0) & 0x0f;
}
uint8_t spiders_state::gfx_rom_r()
{
uint8_t ret;
if (m_gfx_rom_ctrl_mode)
{
uint8_t *rom = memregion("gfx1")->base();
ret = rom[m_gfx_rom_address];
m_gfx_rom_address = m_gfx_rom_address + 1;
}
else
{
uint8_t shift_count = m_gfx_rom_ctrl_latch << 2;
m_gfx_rom_address = (m_gfx_rom_address & ~(0x0f << shift_count)) | (m_gfx_rom_ctrl_data << shift_count);
ret = 0;
}
return ret;
}
/*************************************
*
* Memory handlers
*
*************************************/
void spiders_state::spiders_main_map(address_map &map)
{
map(0x0000, 0xbfff).ram().share("ram");
map(0xc000, 0xc000).w("crtc", FUNC(mc6845_device::address_w));
map(0xc001, 0xc001).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0xc020, 0xc027).ram().share("nvram");
map(0xc044, 0xc047).rw("pia1", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0xc048, 0xc04b).rw("pia2", FUNC(pia6821_device::read_alt), FUNC(pia6821_device::write_alt));
map(0xc050, 0xc053).rw("pia3", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0xc060, 0xc060).portr("DSW1");
map(0xc080, 0xc080).portr("DSW2");
map(0xc0a0, 0xc0a0).portr("DSW3");
map(0xc100, 0xffff).rom();
}
void spiders_state::spiders_audio_map(address_map &map)
{
map(0x0080, 0x0083).rw("pia4", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0xf800, 0xffff).rom();
}
/*************************************
*
* Port definition
*
*************************************/
static INPUT_PORTS_START( spiders )
/* PIA1 PA0 - PA7 */
PORT_START("IN0") /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SERVICE1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_SERVICE_NO_TOGGLE( 0x04, IP_ACTIVE_HIGH )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SERVICE2 )
/* PIA1 PB0 - PB7 */
PORT_START("IN1") /* IN1 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("DSW1") /* IN2, DSW1 */
PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:1,2,3")
PORT_DIPSETTING( 0x01, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 4C_5C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("DSW2") /* IN3, DSW2 */
PORT_DIPNAME( 0x03, 0x03, "Play Mode" ) PORT_DIPLOCATION("SW2:1,2")
PORT_DIPSETTING( 0x00, "A A'" )
PORT_DIPSETTING( 0x01, "A B'" )
PORT_DIPSETTING( 0x02, "B A'" )
PORT_DIPSETTING( 0x03, "B B'" )
PORT_DIPNAME( 0x0c, 0x0c, "Spiders to Complete Belt" ) PORT_DIPLOCATION("SW2:3,4")
PORT_DIPSETTING( 0x00, "14" )
PORT_DIPSETTING( 0x0c, "16" )
PORT_DIPSETTING( 0x04, "20" )
PORT_DIPSETTING( 0x08, "26" )
PORT_DIPNAME( 0x10, 0x10, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:5")
PORT_DIPSETTING( 0x10, "3" )
PORT_DIPSETTING( 0x00, "4" )
PORT_DIPNAME( 0x60, 0x60, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:6,7")
PORT_DIPSETTING( 0x00, DEF_STR( None ) )
PORT_DIPSETTING( 0x60, "15K" )
PORT_DIPSETTING( 0x20, "20K" )
PORT_DIPSETTING( 0x40, "25K" )
PORT_DIPNAME( 0x80, 0x00, "Giant Spiders" ) PORT_DIPLOCATION("SW2:8")
PORT_DIPSETTING( 0x00, "First Screen" )
PORT_DIPSETTING( 0x80, "Every Screen" )
PORT_START("DSW3") /* IN4, DSW3 */
PORT_DIPNAME( 0x01, 0x00, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW3:1")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW3:2")
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x02, DEF_STR( Cocktail ) )
PORT_DIPNAME( 0x1c, 0x00, "Vertical Adjust" ) PORT_DIPLOCATION("SW3:3,4,5")
PORT_DIPSETTING( 0x00, "0" )
PORT_DIPSETTING( 0x04, "1" )
PORT_DIPSETTING( 0x08, "2" )
PORT_DIPSETTING( 0x0c, "3" )
PORT_DIPSETTING( 0x10, "4" )
PORT_DIPSETTING( 0x14, "5" )
PORT_DIPSETTING( 0x18, "6" )
PORT_DIPSETTING( 0x1c, "7" )
PORT_DIPNAME( 0xe0, 0x00, "Horizontal Adjust" ) PORT_DIPLOCATION("SW3:6,7,8")
PORT_DIPSETTING( 0x00, "0" )
PORT_DIPSETTING( 0x20, "1" )
PORT_DIPSETTING( 0x40, "2" )
PORT_DIPSETTING( 0x60, "3" )
PORT_DIPSETTING( 0x80, "4" )
PORT_DIPSETTING( 0xa0, "5" )
PORT_DIPSETTING( 0xc0, "6" )
PORT_DIPSETTING( 0xe0, "7" )
PORT_START("XHATCH") /* connected to PIA1 CB1 input */
PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("PS1 (Crosshatch)") PORT_CODE(KEYCODE_F1)
INPUT_PORTS_END
/*************************************
*
* Machine driver
*
*************************************/
void spiders_state::spiders(machine_config &config)
{
/* basic machine hardware */
MC6809(config, m_maincpu, 2800000);
m_maincpu->set_addrmap(AS_PROGRAM, &spiders_state::spiders_main_map);
m_maincpu->set_periodic_int(FUNC(spiders_state::update_pia_1), attotime::from_hz(25));
M6802(config, m_audiocpu, 3000000);
m_audiocpu->set_addrmap(AS_PROGRAM, &spiders_state::spiders_audio_map);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(PIXEL_CLOCK, 360, 0, 256, 276, 0, 224);
screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update));
PALETTE(config, m_palette, palette_device::RGB_3BIT);
mc6845_device &crtc(MC6845(config, "crtc", CRTC_CLOCK));
crtc.set_screen("screen");
crtc.set_show_border_area(false);
crtc.set_char_width(8);
crtc.set_update_row_callback(FUNC(spiders_state::crtc_update_row));
crtc.out_de_callback().set("ic60", FUNC(ttl74123_device::a_w));
PIA6821(config, m_pia[0]);
m_pia[0]->readpa_handler().set_ioport("IN0");
m_pia[0]->readpb_handler().set_ioport("IN1");
m_pia[0]->irqa_handler().set("mainirq", FUNC(input_merger_device::in_w<0>));
m_pia[0]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<1>));
PIA6821(config, m_pia[1]);
m_pia[1]->readpa_handler().set(FUNC(spiders_state::gfx_rom_r));
m_pia[1]->writepb_handler().set(FUNC(spiders_state::gfx_rom_intf_w));
m_pia[1]->cb2_handler().set(FUNC(spiders_state::flipscreen_w));
m_pia[1]->irqa_handler().set_inputline("maincpu", M6809_FIRQ_LINE);
m_pia[1]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<2>));
PIA6821(config, m_pia[2]);
m_pia[2]->writepa_handler().set(FUNC(spiders_state::spiders_audio_ctrl_w));
m_pia[2]->writepb_handler().set(FUNC(spiders_state::spiders_audio_command_w));
m_pia[2]->irqa_handler().set("mainirq", FUNC(input_merger_device::in_w<3>));
m_pia[2]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<4>));
INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, M6809_IRQ_LINE);
PIA6821(config, m_pia[3]);
m_pia[3]->writepa_handler().set(FUNC(spiders_state::spiders_audio_a_w));
m_pia[3]->writepb_handler().set(FUNC(spiders_state::spiders_audio_b_w));
m_pia[3]->irqa_handler().set_inputline("audiocpu", M6802_IRQ_LINE);
ttl74123_device &ic60(TTL74123(config, "ic60", 0));
ic60.set_connection_type(TTL74123_GROUNDED); /* the hook up type */
ic60.set_resistor_value(RES_K(22)); /* resistor connected to RCext */
ic60.set_capacitor_value(CAP_U(0.01)); /* capacitor connected to Cext and RCext */
ic60.set_a_pin_value(1); /* A pin - driven by the CRTC */
ic60.set_b_pin_value(1); /* B pin - pulled high */
ic60.set_clear_pin_value(1); /* Clear pin - pulled high */
ic60.out_cb().set(FUNC(spiders_state::ic60_74123_output_changed));
/* audio hardware */
spiders_audio(config);
}
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( spiders )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "sp-ic74", 0xc000, 0x1000, CRC(6a2578f6) SHA1(ddfe4fb2ccc925df7ae97821f8681b32e47630b4) )
ROM_LOAD( "sp-ic73", 0xd000, 0x1000, CRC(d69b2f21) SHA1(ea2b07d19bd50c3b57da8fd8e13b8ab0e8ca3084) )
ROM_LOAD( "sp-ic72", 0xe000, 0x1000, CRC(464125da) SHA1(94e9edd52e8bd72bbb5dc91b0aa11955e940799c) )
ROM_LOAD( "sp-ic71", 0xf000, 0x1000, CRC(a9539b18) SHA1(2d02343a78a4a65e5a1798552cd015f16ad5423a) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sp-ic3", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) )
ROM_REGION( 0x10000, "gfx1", 0 )
ROM_LOAD( "sp-ic33", 0x0000, 0x1000, CRC(b6731baa) SHA1(b551030df417b40f4a8488fc82a8b5809d3d32f6) )
ROM_LOAD( "sp-ic25", 0x1000, 0x1000, CRC(baec64e7) SHA1(beb45e2e6270607c14cdf964c08fe320ce8236a0) )
ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) )
ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) )
ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) )
ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) )
ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) )
ROM_END
ROM_START( spiders2 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "sp-ic74", 0xc000, 0x1000, CRC(6a2578f6) SHA1(ddfe4fb2ccc925df7ae97821f8681b32e47630b4) )
ROM_LOAD( "sp2.bin", 0xd000, 0x1000, CRC(cf71d12b) SHA1(369e91f637e8cd898354ddee04e24d4894968f79) )
ROM_LOAD( "sp-ic72", 0xe000, 0x1000, CRC(464125da) SHA1(94e9edd52e8bd72bbb5dc91b0aa11955e940799c) )
ROM_LOAD( "sp4.bin", 0xf000, 0x1000, CRC(f3d126bb) SHA1(ecc9156a7da661fa7543d7656aa7da77274e0842) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sp-ic3", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) )
ROM_REGION( 0x10000, "gfx1", 0 )
ROM_LOAD( "sp-ic33", 0x0000, 0x1000, CRC(b6731baa) SHA1(b551030df417b40f4a8488fc82a8b5809d3d32f6) )
ROM_LOAD( "sp-ic25", 0x1000, 0x1000, CRC(baec64e7) SHA1(beb45e2e6270607c14cdf964c08fe320ce8236a0) )
ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) )
ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) )
ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) )
ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) )
ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) )
ROM_END
ROM_START( spinner )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "sp01-100.r1", 0xc000, 0x1000, CRC(e85faa36) SHA1(ef1c479d503ef6a833ae1f9d5a260f9e50c1f2d4) )
ROM_LOAD( "sp02-99.s1", 0xd000, 0x1000, CRC(4bcd2b35) SHA1(dff3c6e68cc5384863a123661422d929e7406dee) )
ROM_LOAD( "sp03-98.t1", 0xe000, 0x1000, CRC(fdabc5df) SHA1(a3276eb1f09f6a3c406721f89993a39c92fb7728) )
ROM_LOAD( "sp04-97.v1", 0xf000, 0x1000, CRC(62798f96) SHA1(1407a2ccb2b8f998f2ee494f52a471b627895dbe) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sp41-28.d9", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) )
ROM_REGION( 0x10000, "gfx1", 0 )
ROM_LOAD( "sp05-25.k8", 0x0000, 0x1000, CRC(ccc696ee) SHA1(1d41e9eb0cae73b221327d7b6e02450275d056c6) )
ROM_LOAD( "sp06-17.k9", 0x1000, 0x1000, CRC(d3d06722) SHA1(da510ed162e5c310945123c9ce6d5648c7b0ae48) )
ROM_LOAD( "sp07-16.l9", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) )
ROM_LOAD( "sp08-15.n9", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) )
ROM_LOAD( "sp09-14.o9", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) )
ROM_LOAD( "sp10-13.q9", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) )
ROM_LOAD( "sp11-12.r9", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) )
ROM_END
ROM_START( spiders3 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "sp-ic74.bin", 0xc000, 0x1000, CRC(ed6b5dcd) SHA1(551fecb9adbab5cb5ac07fb27cc1fcfa03b5e832) )
ROM_LOAD( "sp-ic73.bin", 0xd000, 0x1000, CRC(bc04f779) SHA1(a6366461a120d978b27470dad34a2270aee71428) )
ROM_LOAD( "sp-ic72.bin", 0xe000, 0x1000, CRC(c7dd097d) SHA1(c7802ac33c1a67ffcb1891e74f0e43483f5b1016) )
ROM_LOAD( "sp-ic71.bin", 0xf000, 0x1000, CRC(593b43c4) SHA1(f0cf06a22be205f00a9d52f766c3aae1985f0090) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sp-ic3.bin", 0xf800, 0x0800, CRC(153adee7) SHA1(45dbd756adb5d75562b066fc152c0af7925052de) )
ROM_REGION( 0x10000, "gfx1", 0 )
ROM_LOAD( "sp-ic33.bin", 0x0000, 0x1000, CRC(7209dacd) SHA1(142de81c013f4074a8eaedc5cd7e9498e6910eb9) )
ROM_LOAD( "sp-ic25.bin", 0x1000, 0x1000, CRC(d3d06722) SHA1(da510ed162e5c310945123c9ce6d5648c7b0ae48) )
ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) )
ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) )
ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) )
ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) )
ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) )
ROM_END
/*************************************
*
* Game drivers
*
*************************************/
/* this is a newer version with just one bug fix */
GAME( 1981, spiders, 0, spiders, spiders, spiders_state, empty_init, ROT270, "Sigma Enterprises Inc.", "Spiders (set 1)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE)
GAME( 1981, spiders2, spiders, spiders, spiders, spiders_state, empty_init, ROT270, "Sigma Enterprises Inc.", "Spiders (set 2)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE)
GAME( 1981, spiders3, spiders, spiders, spiders, spiders_state, empty_init, ROT270, "Sigma Enterprises Inc.", "Spiders (set 3)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE)
GAME( 1981, spinner, spiders, spiders, spiders, spiders_state, empty_init, ROT270, "bootleg", "Spinner", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE)