/
Statement.cc
364 lines (313 loc) · 7.35 KB
/
Statement.cc
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
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
/*
* Copyright (c) 1998-1999 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: Statement.cc,v 1.22 2000/07/26 05:08:07 steve Exp $"
#endif
# include "Statement.h"
# include "PExpr.h"
Statement::~Statement()
{
}
PAssign_::PAssign_(PExpr*lval, PExpr*ex)
: event_(0), lval_(lval), rval_(ex)
{
}
PAssign_::PAssign_(PExpr*lval, PExpr*de, PExpr*ex)
: event_(0), lval_(lval), rval_(ex)
{
if (de) delay_.set_delay(de);
}
PAssign_::PAssign_(PExpr*lval, PEventStatement*ev, PExpr*ex)
: event_(ev), lval_(lval), rval_(ex)
{
}
PAssign_::~PAssign_()
{
delete lval_;
delete rval_;
}
PAssign::PAssign(PExpr*lval, PExpr*ex)
: PAssign_(lval, ex)
{
}
PAssign::PAssign(PExpr*lval, PExpr*d, PExpr*ex)
: PAssign_(lval, d, ex)
{
}
PAssign::PAssign(PExpr*lval, PEventStatement*d, PExpr*ex)
: PAssign_(lval, d, ex)
{
}
PAssign::~PAssign()
{
}
PAssignNB::PAssignNB(PExpr*lval, PExpr*ex)
: PAssign_(lval, ex)
{
}
PAssignNB::PAssignNB(PExpr*lval, PExpr*d, PExpr*ex)
: PAssign_(lval, d, ex)
{
}
PAssignNB::~PAssignNB()
{
}
PBlock::PBlock(const string&n, BL_TYPE t, const svector<Statement*>&st)
: name_(n), bl_type_(t), list_(st)
{
}
PBlock::PBlock(BL_TYPE t, const svector<Statement*>&st)
: bl_type_(t), list_(st)
{
}
PBlock::PBlock(BL_TYPE t)
: bl_type_(t)
{
}
PBlock::~PBlock()
{
for (unsigned idx = 0 ; idx < list_.count() ; idx += 1)
delete list_[idx];
}
PCallTask::PCallTask(const string&n, const svector<PExpr*>&p)
: name_(n), parms_(p)
{
}
PCase::PCase(NetCase::TYPE t, PExpr*ex, svector<PCase::Item*>*l)
: type_(t), expr_(ex), items_(l)
{
}
PCase::~PCase()
{
delete expr_;
for (unsigned idx = 0 ; idx < items_->count() ; idx += 1)
if ((*items_)[idx]->stat) delete (*items_)[idx]->stat;
delete[]items_;
}
PCAssign::PCAssign(PExpr*l, PExpr*r)
: lval_(l), expr_(r)
{
}
PCAssign::~PCAssign()
{
delete lval_;
delete expr_;
}
PCondit::PCondit(PExpr*ex, Statement*i, Statement*e)
: expr_(ex), if_(i), else_(e)
{
}
PCondit::~PCondit()
{
delete expr_;
delete if_;
delete else_;
}
PDeassign::PDeassign(PExpr*l)
: lval_(l)
{
}
PDeassign::~PDeassign()
{
delete lval_;
}
PDelayStatement::PDelayStatement(PExpr*d, Statement*st)
: delay_(d), statement_(st)
{
}
PDelayStatement::~PDelayStatement()
{
}
PDisable::PDisable(const string&sc)
: scope_(sc)
{
}
PDisable::~PDisable()
{
}
PEventStatement::PEventStatement(const svector<PEEvent*>&ee)
: expr_(ee), statement_(0)
{
}
PEventStatement::PEventStatement(PEEvent*ee)
: expr_(1), statement_(0)
{
expr_[0] = ee;
}
PEventStatement::~PEventStatement()
{
// delete the events and the statement?
}
void PEventStatement::set_statement(Statement*st)
{
statement_ = st;
}
PForce::PForce(PExpr*l, PExpr*r)
: lval_(l), expr_(r)
{
}
PForce::~PForce()
{
delete lval_;
delete expr_;
}
PForever::PForever(Statement*s)
: statement_(s)
{
}
PForever::~PForever()
{
delete statement_;
}
PProcess::~PProcess()
{
delete statement_;
}
PRelease::PRelease(PExpr*l)
: lval_(l)
{
}
PRelease::~PRelease()
{
delete lval_;
}
PRepeat::PRepeat(PExpr*e, Statement*s)
: expr_(e), statement_(s)
{
}
PRepeat::~PRepeat()
{
delete expr_;
delete statement_;
}
PTrigger::PTrigger(const string&e)
: event_(e)
{
}
PTrigger::~PTrigger()
{
}
PWhile::~PWhile()
{
delete cond_;
delete statement_;
}
/*
* $Log: Statement.cc,v $
* Revision 1.22 2000/07/26 05:08:07 steve
* Parse disable statements to pform.
*
* Revision 1.21 2000/05/11 23:37:26 steve
* Add support for procedural continuous assignment.
*
* Revision 1.20 2000/04/22 04:20:19 steve
* Add support for force assignment.
*
* Revision 1.19 2000/04/12 04:23:57 steve
* Named events really should be expressed with PEIdent
* objects in the pform,
*
* Handle named events within the mix of net events
* and edges. As a unified lot they get caught together.
* wait statements are broken into more complex statements
* that include a conditional.
*
* Do not generate NetPEvent or NetNEvent objects in
* elaboration. NetEvent, NetEvWait and NetEvProbe
* take over those functions in the netlist.
*
* Revision 1.18 2000/04/01 19:31:57 steve
* Named events as far as the pform.
*
* Revision 1.17 2000/02/23 02:56:54 steve
* Macintosh compilers do not support ident.
*
* Revision 1.16 1999/09/29 18:36:02 steve
* Full case support
*
* Revision 1.15 1999/09/22 02:00:48 steve
* assignment with blocking event delay.
*
* Revision 1.14 1999/09/04 19:11:46 steve
* Add support for delayed non-blocking assignments.
*
* Revision 1.13 1999/09/02 01:59:27 steve
* Parse non-blocking assignment delays.
*
* Revision 1.12 1999/07/12 00:59:36 steve
* procedural blocking assignment delays.
*
* Revision 1.11 1999/06/24 04:24:18 steve
* Handle expression widths for EEE and NEE operators,
* add named blocks and scope handling,
* add registers declared in named blocks.
*
* Revision 1.10 1999/06/19 21:06:16 steve
* Elaborate and supprort to vvm the forever
* and repeat statements.
*
* Revision 1.9 1999/06/15 05:38:39 steve
* Support case expression lists.
*
* Revision 1.8 1999/06/13 23:51:16 steve
* l-value part select for procedural assignments.
*
* Revision 1.7 1999/06/06 20:45:38 steve
* Add parse and elaboration of non-blocking assignments,
* Replace list<PCase::Item*> with an svector version,
* Add integer support.
*
* Revision 1.6 1999/05/10 00:16:58 steve
* Parse and elaborate the concatenate operator
* in structural contexts, Replace vector<PExpr*>
* and list<PExpr*> with svector<PExpr*>, evaluate
* constant expressions with parameters, handle
* memories as lvalues.
*
* Parse task declarations, integer types.
*
* Revision 1.5 1999/02/03 04:20:11 steve
* Parse and elaborate the Verilog CASE statement.
*
* Revision 1.4 1999/01/25 05:45:56 steve
* Add the LineInfo class to carry the source file
* location of things. PGate, Statement and PProcess.
*
* elaborate handles module parameter mismatches,
* missing or incorrect lvalues for procedural
* assignment, and errors are propogated to the
* top of the elaboration call tree.
*
* Attach line numbers to processes, gates and
* assignment statements.
*
* Revision 1.3 1998/11/11 03:13:04 steve
* Handle while loops.
*
* Revision 1.2 1998/11/07 17:05:05 steve
* Handle procedural conditional, and some
* of the conditional expressions.
*
* Elaborate signals and identifiers differently,
* allowing the netlist to hold signal information.
*
* Revision 1.1 1998/11/03 23:28:55 steve
* Introduce verilog to CVS.
*
*/