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
|
/* This file is part of the program psim.
Copyright (C) 1994-1995,1997-1998, Andrew Cagney <cagney@highland.com.au>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "hw-main.h"
#include "hw-base.h"
struct hw_handle_mapping {
cell_word external;
struct hw *phandle;
struct hw_instance *ihandle;
struct hw_handle_mapping *next;
};
struct hw_handle_data {
int nr_mappings;
struct hw_handle_mapping *mappings;
};
void
create_hw_handle_data (struct hw *hw)
{
if (hw_parent (hw) == NULL)
{
hw->handles_of_hw = HW_ZALLOC (hw, struct hw_handle_data);
}
else
{
hw->handles_of_hw = hw_root (hw)->handles_of_hw;
}
}
void
delete_hw_handle_data (struct hw *hw)
{
/* NULL */
}
#if 0
void
hw_handle_init (struct hw *hw)
{
struct hw_handle_mapping *current_map = db->mappings;
if (current_map != NULL)
{
db->nr_mappings = db->mappings->external;
/* verify that the mappings that were not removed are in
sequence down to nr 1 */
while (current_map->next != NULL)
{
if (current_map->external != current_map->next->external + 1)
error ("hw_handle: hw_handle database possibly corrupt");
current_map = current_map->next;
}
ASSERT (current_map->next == NULL);
if (current_map->external != 1)
error ("hw_handle: hw_handle database possibly corrupt");
}
else
{
db->nr_mappings = 0;
}
}
#endif
struct hw_instance *
hw_handle_ihandle2 (struct hw *hw,
cell_word external)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping *current_map = db->mappings;
while (current_map != NULL)
{
if (current_map->external == external)
return current_map->ihandle;
current_map = current_map->next;
}
return (void*)0;
}
struct hw *
hw_handle_phandle2 (struct hw *hw,
cell_word external)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping *current_map = db->mappings;
while (current_map != NULL)
{
if (current_map->external == external)
return current_map->phandle;
current_map = current_map->next;
}
return (void*)0;
}
cell_word
hw_handle_2ihandle (struct hw *hw,
struct hw_instance *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping *current_map = db->mappings;
while (current_map != NULL)
{
if (current_map->ihandle == internal)
return current_map->external;
current_map = current_map->next;
}
return 0;
}
cell_word
hw_handle_2phandle (struct hw *hw,
struct hw *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping *current_map = db->mappings;
while (current_map != NULL)
{
if (current_map->phandle == internal)
return current_map->external;
current_map = current_map->next;
}
return 0;
}
void
hw_handle_add_ihandle (struct hw *hw,
struct hw_instance *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
if (hw_handle_2ihandle (hw, internal) != NULL)
{
hw_abort (hw, "attempting to add an ihandle already in the data base");
}
else
{
/* insert at the front making things in decending order */
struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
new_map->next = db->mappings;
new_map->ihandle = internal;
db->nr_mappings += 1;
new_map->external = db->nr_mappings;
db->mappings = new_map;
}
}
void
hw_handle_add_phandle (struct hw *hw,
struct hw *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
if (hw_handle_2phandle (hw, internal) != NULL)
{
hw_abort (hw, "attempting to add a phandle already in the data base");
}
else
{
/* insert at the front making things in decending order */
struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
new_map->next = db->mappings;
new_map->phandle = internal;
db->nr_mappings += 1;
new_map->external = db->nr_mappings;
db->mappings = new_map;
}
}
void
hw_handle_remove_ihandle (struct hw *hw,
struct hw_instance *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping **current_map = &db->mappings;
while (*current_map != NULL)
{
if ((*current_map)->ihandle == internal)
{
struct hw_handle_mapping *delete = *current_map;
*current_map = delete->next;
zfree (delete);
return;
}
current_map = &(*current_map)->next;
}
hw_abort (hw, "attempt to remove nonexistant ihandle");
}
void
hw_handle_remove_phandle (struct hw *hw,
struct hw *internal)
{
struct hw_handle_data *db = hw->handles_of_hw;
struct hw_handle_mapping **current_map = &db->mappings;
while (*current_map != NULL)
{
if ((*current_map)->phandle == internal)
{
struct hw_handle_mapping *delete = *current_map;
*current_map = delete->next;
zfree (delete);
return;
}
current_map = &(*current_map)->next;
}
hw_abort (hw, "attempt to remove nonexistant phandle");
}
|
