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
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Luxor ABC 1656 bus expander emulation
*********************************************************************/
#include "emu.h"
#include "abc1656.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(ABC1656, abc1656_device, "luxor_abc1656", "Luxor ABC 1656")
static DEVICE_INPUT_DEFAULTS_START( db4105 )
DEVICE_INPUT_DEFAULTS( "5E", 0x3f, 0x26 )
DEVICE_INPUT_DEFAULTS_END
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void abc1656_device::device_add_mconfig(machine_config &config)
{
INPUT_MERGER_ANY_LOW(config, "pren").output_handler().set(FUNC(abc1656_device::pren_w));
INPUT_MERGER_ANY_LOW(config, "trrq").output_handler().set(FUNC(abc1656_device::trrq_w));
ABCBUS_SLOT(config, m_bus[0], DERIVED_CLOCK(1, 1), abc1600bus_cards, "4105");
m_bus[0]->set_option_device_input_defaults("4105", DEVICE_INPUT_DEFAULTS_NAME(db4105));
m_bus[0]->irq_callback().set(FUNC(abc1656_device::irq_w));
m_bus[0]->pren_callback().set("pren", FUNC(input_merger_device::in_w<0>));
m_bus[0]->trrq_callback().set("trrq", FUNC(input_merger_device::in_w<0>));
ABCBUS_SLOT(config, m_bus[1], DERIVED_CLOCK(1, 1), abc1600bus_cards, nullptr);
m_bus[1]->irq_callback().set(FUNC(abc1656_device::xint2_w));
m_bus[1]->pren_callback().set("pren", FUNC(input_merger_device::in_w<1>));
m_bus[1]->trrq_callback().set("trrq", FUNC(input_merger_device::in_w<1>));
ABCBUS_SLOT(config, m_bus[2], DERIVED_CLOCK(1, 1), abc1600bus_cards, nullptr);
m_bus[2]->irq_callback().set(FUNC(abc1656_device::xint3_w));
m_bus[2]->pren_callback().set("pren", FUNC(input_merger_device::in_w<2>));
m_bus[2]->trrq_callback().set("trrq", FUNC(input_merger_device::in_w<2>));
ABCBUS_SLOT(config, m_bus[3], DERIVED_CLOCK(1, 1), abc1600bus_cards, nullptr);
m_bus[3]->irq_callback().set(FUNC(abc1656_device::xint4_w));
m_bus[3]->pren_callback().set("pren", FUNC(input_merger_device::in_w<3>));
m_bus[3]->trrq_callback().set("trrq", FUNC(input_merger_device::in_w<3>));
ABCBUS_SLOT(config, m_bus[4], DERIVED_CLOCK(1, 1), abc1600bus_cards, nullptr);
m_bus[4]->irq_callback().set(FUNC(abc1656_device::xint5_w));
m_bus[4]->pren_callback().set("pren", FUNC(input_merger_device::in_w<4>));
m_bus[4]->trrq_callback().set("trrq", FUNC(input_merger_device::in_w<4>));
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// abc1656_device - constructor
//-------------------------------------------------
abc1656_device::abc1656_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, ABC1656, tag, owner, clock),
device_abcbus_card_interface(mconfig, *this),
m_bus(*this, "bus%u", 0)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void abc1656_device::device_start()
{
}
//-------------------------------------------------
// abcbus_cs - card select
//-------------------------------------------------
void abc1656_device::abcbus_cs(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_cs(data);
}
//-------------------------------------------------
// abcbus_inp - input
//-------------------------------------------------
uint8_t abc1656_device::abcbus_inp()
{
uint8_t data = 0xff;
for (auto &slot : m_bus)
data &= slot->read_inp();
return data;
}
//-------------------------------------------------
// abcbus_out - output
//-------------------------------------------------
void abc1656_device::abcbus_out(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_out(data);
}
//-------------------------------------------------
// abcbus_stat - status
//-------------------------------------------------
uint8_t abc1656_device::abcbus_stat()
{
uint8_t data = 0xff;
for (auto &slot : m_bus)
data &= slot->read_stat();
return data;
}
//-------------------------------------------------
// abcbus_c1 - command 1
//-------------------------------------------------
void abc1656_device::abcbus_c1(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_c1(data);
}
//-------------------------------------------------
// abcbus_c2 - command 2
//-------------------------------------------------
void abc1656_device::abcbus_c2(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_c2(data);
}
//-------------------------------------------------
// abcbus_c3 - command 3
//-------------------------------------------------
void abc1656_device::abcbus_c3(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_c3(data);
}
//-------------------------------------------------
// abcbus_c4 - command 4
//-------------------------------------------------
void abc1656_device::abcbus_c4(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_c4(data);
}
//-------------------------------------------------
// abcbus_tren - transfer enable read
//-------------------------------------------------
uint8_t abc1656_device::abcbus_tren()
{
uint8_t data = 0xff;
for (auto &slot : m_bus)
data &= slot->read_tren();
return data;
}
//-------------------------------------------------
// abcbus_tren - transfer enable write
//-------------------------------------------------
void abc1656_device::abcbus_tren(uint8_t data)
{
for (auto &slot : m_bus)
slot->write_tren(data);
}
//-------------------------------------------------
// abcbus_prac -
//-------------------------------------------------
void abc1656_device::abcbus_prac(int state)
{
for (auto &slot : m_bus)
slot->prac_w(state);
}
|