summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/audio/vicdual-97271p.cpp
blob: 1819ef96e902e70a53dd587e73c5269b4289eda1 (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
// license:BSD-3-Clause
// copyright-holders:Ariane Fugmann

/*
N-Sub Oscillator 97271-P
-----------------------------
for the time being this is a simple sample player based on the work by MASH.
*/

#include "emu.h"
#include "speaker.h"
#include "audio/vicdual-97271p.h"

#define S97271P_TAG     "s97271p"

//**************************************************************************
//  GLOBAL VARIABLES
//**************************************************************************

DEFINE_DEVICE_TYPE(S97271P, s97271p_device, "s97271p", "N-Sub Oscillator 97271-P")

/* bit definitions - sound effect drive outputs */
#define S97271P_WARNING      0x01
#define S97271P_SONAR        0x02
#define S97271P_LAUNCH       0x04
#define S97271P_EXPL_L       0x08
#define S97271P_EXPL_S       0x10
#define S97271P_BONUS        0x20
#define S97271P_CODE         0x40
#define S97271P_BOAT         0x80

/* sample file names */
static const char *const nsub_sample_names[] =
{
	"*nsub",
	"SND_EXPL_L0",
	"SND_EXPL_L1",
	"SND_SONAR",
	"SND_LAUNCH0",
	"SND_LAUNCH1",
	"SND_WARNING0",
	"SND_WARNING1",
	"SND_EXPL_S0",
	"SND_EXPL_S1",
	"SND_BONUS0",
	"SND_BONUS1",
	"SND_CODE",
	"SND_BOAT",
	nullptr
};

/* sample ids - must match sample file name table above */
enum
{
	SND_EXPL_L0 = 0,
	SND_EXPL_L1,
	SND_SONAR,
	SND_LAUNCH0,
	SND_LAUNCH1,
	SND_WARNING0,
	SND_WARNING1,
	SND_EXPL_S0,
	SND_EXPL_S1,
	SND_BONUS0,
	SND_BONUS1,
	SND_CODE,
	SND_BOAT
};


//**************************************************************************
//  MACHINE FRAGMENTS
//**************************************************************************

static MACHINE_CONFIG_FRAGMENT( nsub_audio )
	MCFG_SPEAKER_STANDARD_MONO("mono")

	/* samples */
	MCFG_SOUND_ADD("samples", SAMPLES, 0)
	MCFG_SAMPLES_CHANNELS(13)
	MCFG_SAMPLES_NAMES(nsub_sample_names)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
MACHINE_CONFIG_END

//**************************************************************************
//  LIVE DEVICE
//**************************************************************************

//-------------------------------------------------
//  s97271p_device - constructor
//-------------------------------------------------

s97271p_device::s97271p_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
	device_t(mconfig, S97271P, tag, owner, clock),
	m_samples(*this, "samples")
{
}

//-------------------------------------------------
//  machine_config_additions - device-specific
//  machine configurations
//-------------------------------------------------

machine_config_constructor s97271p_device::device_mconfig_additions() const
{
	return MACHINE_CONFIG_NAME( nsub_audio );
}

//-------------------------------------------------
//  device_start - device-specific startup
//-------------------------------------------------

void s97271p_device::device_start()
{
	save_item(NAME(m_state));
}

//-------------------------------------------------
//  device_reset - device-specific reset
//-------------------------------------------------

void s97271p_device::device_reset()
{
	m_state = 0xff;
}

void s97271p_device::port_w(uint8_t data)
{
	uint8_t bitsChanged = m_state ^ data;
	uint8_t bitsGoneHigh = bitsChanged & data;
	uint8_t bitsGoneLow = bitsChanged & ~data;
	m_state = data;

	if (bitsGoneLow & S97271P_WARNING)
	{
		m_samples->start(SND_WARNING0, SND_WARNING0, 1);
		m_samples->stop(SND_WARNING1);
	} else if (bitsGoneHigh & S97271P_WARNING)
	{
		m_samples->start(SND_WARNING1, SND_WARNING1, 0);
		m_samples->stop(SND_WARNING0);
	}

	if (bitsGoneLow & S97271P_SONAR)
	{
		m_samples->start(SND_SONAR, SND_SONAR, 1);
	} else if (bitsGoneHigh & S97271P_SONAR)
	{
		m_samples->stop(SND_SONAR);
	}

	if (bitsGoneLow & S97271P_LAUNCH)
	{
		m_samples->start(SND_LAUNCH0, SND_LAUNCH0, 1);
		m_samples->stop(SND_LAUNCH1);
	} else if (bitsGoneHigh & S97271P_LAUNCH)
	{
		m_samples->start(SND_LAUNCH1, SND_LAUNCH1, 0);
		m_samples->stop(SND_LAUNCH0);
	}

	if (bitsGoneLow & S97271P_EXPL_L)
	{
		m_samples->start(SND_EXPL_L0, SND_EXPL_L0, 1);
		m_samples->stop(SND_EXPL_L1);
	} else if (bitsGoneHigh & S97271P_EXPL_L)
	{
		m_samples->start(SND_EXPL_L1, SND_EXPL_L1, 0);
		m_samples->stop(SND_EXPL_L0);
	}

	if (bitsGoneLow & S97271P_EXPL_S)
	{
		m_samples->start(SND_EXPL_S0, SND_EXPL_S0, 1);
		m_samples->stop(SND_EXPL_S1);
	} else if (bitsGoneHigh & S97271P_EXPL_S)
	{
		m_samples->start(SND_EXPL_S1, SND_EXPL_S1, 0);
		m_samples->stop(SND_EXPL_S0);
	}

	if (bitsGoneLow & S97271P_BONUS)
	{
		m_samples->start(SND_BONUS0, SND_BONUS0, 1);
		m_samples->stop(SND_BONUS1);
	} else if (bitsGoneHigh & S97271P_BONUS)
	{
		m_samples->start(SND_BONUS1, SND_BONUS1, 0);
		m_samples->stop(SND_BONUS0);
	}

	if (bitsGoneLow & S97271P_CODE)
	{
		m_samples->start(SND_CODE, SND_CODE, 1);
	} else if (bitsGoneHigh & S97271P_CODE)
	{
		m_samples->stop(SND_CODE);
	}

	if (bitsGoneLow & S97271P_BOAT)
	{
		m_samples->start(SND_BOAT, SND_BOAT, 1);
	} else if (bitsGoneHigh & S97271P_BOAT)
	{
		m_samples->stop(SND_BOAT);
	}
}