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
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore Plus/4 Expansion Port emulation
**********************************************************************/
#include "exp.h"
//**************************************************************************
// MACROS/CONSTANTS
//**************************************************************************
#define LOG 0
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type PLUS4_EXPANSION_SLOT = &device_creator<plus4_expansion_slot_device>;
//**************************************************************************
// DEVICE PLUS4_EXPANSION CARD INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_plus4_expansion_card_interface - constructor
//-------------------------------------------------
device_plus4_expansion_card_interface::device_plus4_expansion_card_interface(const machine_config &mconfig, device_t &device)
: device_slot_card_interface(mconfig, device),
m_c1l(*this, "c1l"),
m_c1h(*this, "c1h"),
m_c2l(*this, "c2l"),
m_c2h(*this, "c2h"),
m_c1l_mask(0),
m_c1h_mask(0),
m_c2l_mask(0),
m_c2h_mask(0)
{
m_slot = dynamic_cast<plus4_expansion_slot_device *>(device.owner());
}
//-------------------------------------------------
// ~device_plus4_expansion_card_interface - destructor
//-------------------------------------------------
device_plus4_expansion_card_interface::~device_plus4_expansion_card_interface()
{
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// plus4_expansion_slot_device - constructor
//-------------------------------------------------
plus4_expansion_slot_device::plus4_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, PLUS4_EXPANSION_SLOT, "Expansion Port", tag, owner, clock, "plus4_expansion_slot", __FILE__),
device_slot_interface(mconfig, *this),
device_image_interface(mconfig, *this),
m_write_irq(*this),
m_read_dma_cd(*this),
m_write_dma_cd(*this),
m_write_aec(*this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void plus4_expansion_slot_device::device_start()
{
m_card = dynamic_cast<device_plus4_expansion_card_interface *>(get_card_device());
// resolve callbacks
m_write_irq.resolve_safe();
m_read_dma_cd.resolve_safe(0xff);
m_write_dma_cd.resolve_safe();
m_write_aec.resolve_safe();
// inherit bus clock
if (clock() == 0)
{
plus4_expansion_slot_device *root = machine().device<plus4_expansion_slot_device>(PLUS4_EXPANSION_SLOT_TAG);
assert(root);
set_unscaled_clock(root->clock());
}
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void plus4_expansion_slot_device::device_reset()
{
if (get_card_device())
{
get_card_device()->reset();
}
}
//-------------------------------------------------
// call_load -
//-------------------------------------------------
bool plus4_expansion_slot_device::call_load()
{
if (m_card)
{
if (software_entry() == NULL)
{
// TODO
}
else
{
load_software_region("c1l", m_card->m_c1l);
load_software_region("c1h", m_card->m_c1h);
load_software_region("c2l", m_card->m_c2l);
load_software_region("c2h", m_card->m_c2h);
}
}
return IMAGE_INIT_PASS;
}
//-------------------------------------------------
// call_softlist_load -
//-------------------------------------------------
bool plus4_expansion_slot_device::call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry)
{
load_software_part_region(*this, swlist, swname, start_entry);
return true;
}
//-------------------------------------------------
// get_default_card_software -
//-------------------------------------------------
void plus4_expansion_slot_device::get_default_card_software(std::string &result)
{
software_get_default_slot(result, "standard");
}
//-------------------------------------------------
// cd_r - cartridge data read
//-------------------------------------------------
UINT8 plus4_expansion_slot_device::cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h)
{
if (m_card != NULL)
{
data = m_card->plus4_cd_r(space, offset, data, ba, cs0, c1l, c1h, cs1, c2l, c2h);
}
return data;
}
//-------------------------------------------------
// cd_w - cartridge data write
//-------------------------------------------------
void plus4_expansion_slot_device::cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h)
{
if (m_card != NULL)
{
m_card->plus4_cd_w(space, offset, data, ba, cs0, c1l, c1h, cs1, c2l, c2h);
}
}
//-------------------------------------------------
// SLOT_INTERFACE( plus4_expansion_cards )
//-------------------------------------------------
// slot devices
#include "c1551.h"
#include "sid.h"
#include "std.h"
SLOT_INTERFACE_START( plus4_expansion_cards )
SLOT_INTERFACE("c1551", C1551)
SLOT_INTERFACE("sid", PLUS4_SID)
// the following need ROMs from the software list
SLOT_INTERFACE_INTERNAL("standard", PLUS4_STD)
SLOT_INTERFACE_END
|