summaryrefslogtreecommitdiffstats
path: root/src/mame/drivers/spectra.cpp
blob: a52db1161cdfd11aaa0dbf6c68631c1fcc25e1ee (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
// license:BSD-3-Clause
// copyright-holders:Robbbert
/******************************************************************************************

PINBALL
Valley Spectra IV

Rotating game, like Midway's "Rotation VIII".

2012-09-28 System working [Robbbert]

Schematic and PinMAME used as references.
Code for the sn76477 sound was derived from PinMAME.

There is a bug - if you score 1000 and had less than 100, the hundreds digit will
be blank. It will of course fix itself during the course of the game.

Setting up - if you do not set up the game, each player will get 255 balls.
Turn test switch to Setup. Press 1 to advance to next set. Press 5 to adjust the
set. Use the manual for a description of each set. After setting up set 16, do not
press 1, instead turn the dipswitch to Play. Exit (to save nvram), and restart.
Now the game is ready. Very quick guide to a reasonable setup:
06 - 30000 (1st award score)
07 - 50000 (2nd award score)
08 - 70000 (3rd award score)
09 - 90000 (high score)
11 - 1 (1 coin 1 credit)
13 - 3 (3 balls)
15 - 1 (award is a free game)
16 - 1 (match enabled)

Status:
- Working

ToDo:
- Nothing

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


#include "emu.h"
#include "machine/genpin.h"

#include "cpu/m6502/m6502.h"
#include "machine/6532riot.h"
#include "machine/timer.h"
#include "sound/sn76477.h"
#include "speaker.h"

#include "spectra.lh"

namespace {

class spectra_state : public genpin_class
{
public:
	spectra_state(const machine_config &mconfig, device_type type, const char *tag)
		: genpin_class(mconfig, type, tag)
		, m_maincpu(*this, "maincpu")
		, m_snsnd(*this, "snsnd")
		, m_io_keyboard(*this, "X%d", 0U)
		, m_p_ram(*this, "nvram")
		, m_digits(*this, "digit%d", 0U)
		, m_io_outputs(*this, "out%d", 0U)
	{ }

	void spectra(machine_config &config);

private:
	u8 porta_r();
	u8 portb_r();
	void porta_w(u8 data);
	void portb_w(u8 data);
	TIMER_DEVICE_CALLBACK_MEMBER(nmitimer);
	TIMER_DEVICE_CALLBACK_MEMBER(outtimer);
	void spectra_map(address_map &map);

	u8 m_porta = 0U;
	u8 m_portb = 0U;
	u8 m_t_c = 0U;
	u8 m_out_offs = 0U;
	virtual void machine_reset() override;
	virtual void machine_start() override;
	required_device<cpu_device> m_maincpu;
	required_device<sn76477_device> m_snsnd;
	required_ioport_array<4> m_io_keyboard;
	required_shared_ptr<u8> m_p_ram;
	output_finder<40> m_digits;
	output_finder<64> m_io_outputs;  // 16 solenoids + 48 lamps
};


void spectra_state::spectra_map(address_map &map)
{
	map.unmap_value_high();
	map.global_mask(0xfff);
	map(0x0000, 0x00ff).ram().share("nvram"); // battery backed, 2x 5101L
	map(0x0100, 0x017f).ram(); // RIOT RAM
	map(0x0180, 0x019f).rw("riot", FUNC(riot6532_device::read), FUNC(riot6532_device::write));
	map(0x0400, 0x0fff).rom();
}

static INPUT_PORTS_START( spectra )
	PORT_START("X0")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Outhole") PORT_CODE(KEYCODE_X)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Outlane 1") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("CR Hole") PORT_CODE(KEYCODE_B)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("TR Hole") PORT_CODE(KEYCODE_C)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Bumper") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("C Bumper") PORT_CODE(KEYCODE_E)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Bumper") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Sling") PORT_CODE(KEYCODE_G)
	PORT_START("X1")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Sling") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Outlane") PORT_CODE(KEYCODE_I)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Rollover") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Rollover") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Inside Target") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("C Inside Target") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Inside Target") PORT_CODE(KEYCODE_M)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("CL Target") PORT_CODE(KEYCODE_N)
	PORT_START("X2")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("CL Button") PORT_CODE(KEYCODE_O)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("TL Button") PORT_CODE(KEYCODE_P)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("TL Target") PORT_CODE(KEYCODE_Q)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Outlane 2") PORT_CODE(KEYCODE_R)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Outlane 3") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Pentagon") PORT_CODE(KEYCODE_T)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Pentagon") PORT_CODE(KEYCODE_U)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("TL Area") PORT_CODE(KEYCODE_V)
	PORT_START("X3")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("L Area") PORT_CODE(KEYCODE_W)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("R Area") PORT_CODE(KEYCODE_Y)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Inlane Button") PORT_CODE(KEYCODE_Z)
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_COIN1)
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_START1)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_CODE(KEYCODE_9) PORT_NAME("Tilt")
	PORT_DIPNAME( 0x60, 0x60, "Test Switch" ) // 3-position slide switch
	PORT_DIPSETTING(    0x60, "Play" )
	PORT_DIPSETTING(    0x20, "Setup" )
	PORT_DIPSETTING(    0x40, "Test" )
INPUT_PORTS_END

u8 spectra_state::porta_r()
{
	u8 row = (m_porta & 0x18) >> 3;
	u8 key = m_io_keyboard[row]->read();
	u8 ret = ((BIT(key, m_porta & 7)) ? 0x40 : 0) | (m_porta & 0xbf);

	if (ret == 0x1b && m_p_ram[0x7b] < 0x1E)
		m_samples->start(3, 8); // coin

	return ret;
}

u8 spectra_state::portb_r()
{
	if (m_p_ram[0xf0] != 1)
		return 0x5a; // factory reset if first time
	else
		return m_portb;
}

void spectra_state::porta_w(u8 data)
{
	m_porta = data;
}

// sound port
void spectra_state::portb_w(u8 data)
{
	m_portb = data;
	float vco = 5.0;
	if (BIT(data, 0)) vco -= 0.3125f;
	if (BIT(data, 1)) vco -= 0.625f;
	if (BIT(data, 2)) vco -= 1.25f;
	if (BIT(data, 3)) vco -= 2.5f;
	m_snsnd->vco_voltage_w(5.3125f - vco);
	m_snsnd->enable_w(!BIT(data, 4)); // strobe: toggles enable
	m_snsnd->envelope_1_w(!BIT(data, 5)); //decay: toggles envelope
	m_snsnd->vco_w(BIT(data, 6)); // "phaser" sound: VCO toggled
	m_snsnd->mixer_b_w(BIT(data, 7)); // "pulse" sound: pins 25 & 27 changed
	m_snsnd->mixer_c_w(BIT(data, 7)); // "pulse" sound: pins 25 & 27 changed
}


TIMER_DEVICE_CALLBACK_MEMBER( spectra_state::nmitimer)
{
	if (m_t_c > 0x10)
		m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
	else
		m_t_c++;
}

// 00-27 displays
// 40-6F lamps
// 70-7F solenoids - no knocker
TIMER_DEVICE_CALLBACK_MEMBER( spectra_state::outtimer)
{
	static const u8 patterns[16] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x5c, 0x63, 0x01, 0x40, 0x08, 0 }; // 74C912
	m_out_offs++;

	if (m_out_offs < 0x28)
	{
		u8 data = m_p_ram[m_out_offs];
		u8 segments = patterns[data&15] | (BIT(data, 4) ? 0x80 : 0);
		m_digits[m_out_offs] = segments;
	}
	else
	if (m_out_offs < 0x6f)
		m_out_offs = 0x6f;
	else
	if (m_out_offs < 0x74)
	{
		if (m_p_ram[m_out_offs])
			m_samples->start(0, 5); // holes
	}
	else
	if (m_out_offs < 0x77)
	{
		if (m_p_ram[m_out_offs])
			m_samples->start(1, 0); // bumpers
	}
	else
	if (m_out_offs < 0x79)
	{
		if (m_p_ram[m_out_offs])
			m_samples->start(2, 7); // slings
	}
	else
		m_out_offs = 0xff;

	// Signals to external solenoids
	for (u8 i = 0; i < 16; i++)
		m_io_outputs[i] = m_p_ram[i+0x70] ? 1 : 0;
	// Signals to external lamps
	for (u8 i = 0; i < 48; i++)
		m_io_outputs[i+16] = m_p_ram[i+0x40] ? 1 : 0;
}

void spectra_state::machine_start()
{
	genpin_class::machine_start();
	m_digits.resolve();
	m_io_outputs.resolve();

	save_item(NAME(m_porta));
	save_item(NAME(m_portb));
	save_item(NAME(m_t_c));
	save_item(NAME(m_out_offs));
}

void spectra_state::machine_reset()
{
	genpin_class::machine_reset();
	for (u8 i = 0; i < m_io_outputs.size(); i++)
		m_io_outputs[i] = 0;

	m_t_c = 0;
}


void spectra_state::spectra(machine_config &config)
{
	/* basic machine hardware */
	M6502(config, m_maincpu, XTAL(3'579'545)/4);  // actually a M6503
	m_maincpu->set_addrmap(AS_PROGRAM, &spectra_state::spectra_map);

	riot6532_device &riot(RIOT6532(config, "riot", XTAL(3'579'545)/4));
	riot.in_pa_callback().set(FUNC(spectra_state::porta_r));
	riot.out_pa_callback().set(FUNC(spectra_state::porta_w));
	riot.in_pb_callback().set(FUNC(spectra_state::portb_r));
	riot.out_pb_callback().set(FUNC(spectra_state::portb_w));
	riot.irq_callback().set_inputline("maincpu", M6502_IRQ_LINE);

	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1);

	TIMER(config, "nmitimer").configure_periodic(FUNC(spectra_state::nmitimer), attotime::from_hz(120));
	TIMER(config, "outtimer").configure_periodic(FUNC(spectra_state::outtimer), attotime::from_hz(1200));

	/* Video */
	config.set_default_layout(layout_spectra);

	/* Sound */
	genpin_audio(config);

	SPEAKER(config, "mono").front_center();
	SN76477(config, m_snsnd);
	m_snsnd->set_noise_params(RES_M(1000), RES_M(1000), CAP_N(0));
	m_snsnd->set_decay_res(RES_K(470));
	m_snsnd->set_attack_params(CAP_N(1), RES_K(22));
	m_snsnd->set_amp_res(RES_K(100));
	m_snsnd->set_feedback_res(RES_K(52));
	m_snsnd->set_vco_params(5.0, CAP_U(0.01), RES_K(390));
	m_snsnd->set_pitch_voltage(0.0);
	m_snsnd->set_slf_params(CAP_U(0.1), RES_M(1));
	m_snsnd->set_oneshot_params(CAP_U(0.47), RES_K(470));
	m_snsnd->set_vco_mode(0);
	m_snsnd->set_mixer_params(0, 0, 0);
	m_snsnd->set_envelope_params(0, 0);
	m_snsnd->set_enable(1);
	m_snsnd->add_route(ALL_OUTPUTS, "mono", 0.30);
}

/*--------------------------------
/ Spectra IV
/-------------------------------*/
ROM_START(spectra)
	ROM_REGION(0x10000, "maincpu", 0)
	ROM_LOAD("spect_u5.dat", 0x0400, 0x0400, CRC(49e0759f) SHA1(c3badc90ff834cbc92d8c519780069310c2b1507))
	ROM_LOAD("spect_u4.dat", 0x0800, 0x0400, CRC(15e53712) SHA1(e03049178569313cb89cfe0f09043c21d05b1988))
	ROM_LOAD("spect_u3.dat", 0x0c00, 0x0400, CRC(9ca7510f) SHA1(a87849f16903836158063d593bb4a2e90c7473c8))
ROM_END

} // anonymous namespace

GAME(1979,  spectra,  0,  spectra,  spectra, spectra_state, empty_init, ROT0, "Valley", "Spectra IV", MACHINE_MECHANICAL | MACHINE_SUPPORTS_SAVE )