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sc_module.cc @ 41

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1	/*------------------------------------------------------------\
2	\| \|
3	\| Tool : systemcass \|
4	\| \|
5	\| File : sc_module.cc \|
6	\| \|
7	\| Author : Buchmann Richard \|
8	\| Taktak Sami \|
9	\| \|
10	\| Date : 09_07_2004 \|
11	\| \|
12	\------------------------------------------------------------*/
13
14	/*
15	* This file is part of the Disydent Project
16	* Copyright (C) Laboratoire LIP6 - Département ASIM
17	* Universite Pierre et Marie Curie
18	*
19	* Home page : http://www-asim.lip6.fr/disydent
20	* E-mail : mailto:richard.buchmann@lip6.fr
21	*
22	* This library is free software; you can redistribute it and/or modify it
23	* under the terms of the GNU Library General Public License as published
24	* by the Free Software Foundation; either version 2 of the License, or (at
25	* your option) any later version.
26	*
27	* Disydent is distributed in the hope that it will be
28	* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
29	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
30	* Public License for more details.
31	*
32	* You should have received a copy of the GNU General Public License along
33	* with the GNU C Library; see the file COPYING. If not, write to the Free
34	* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
35	*/
36
37	#include <stdarg.h>
38	#include <vector>
39	#include <set>
40
41	#include "sc_module.h"
42	#include "sc_module_name.h"
43	#include "sc_sensitive.h"
44	#include "module_hierarchy.h"
45	#include "serialization.h" // set_save_handler
46	#include "sc_port.h"
47	#include "sc_signal.h"
48	#include "sc_clock.h" // is_clock
49	#include "entity.h"
50	#include <cassert>
51	#ifdef HAVE_CONFIG_H
52	#include "config.h"
53	#endif
54
55	//
56	using namespace std;
57
58	// ----------------------------------------------------------------------------
59	//
60	//
61	// ----------------------------------------------------------------------------
62
63	namespace sc_core {
64	instances_set_t instances_set;
65	instances_list_t temp_list;
66	method_process_list_t method_process_list;
67
68	module_name_stack_t module_name_stack;
69
70	modules_stack_t modules_stack;
71
72	method_process_t *method;
73
74	void
75	declare_method_process (const char * name,
76	SC_ENTRY_FUNC func,
77	sc_module& module)
78	{
79	method = create_method_process (name, func, module);
80	method_process_list.push_back(method);
81	}
82
83
84	ostream&
85	operator << (ostream &o,
86	instances_set_t &l)
87	{
88	instances_set_t::iterator i;
89	for (i = l.begin (); i != l.end (); ++i) {
90	o << (*i)->name () << " ";
91	};
92	return o << endl;
93	}
94
95	template <typename T>
96	static
97	std::ostream&
98	operator << (std::ostream &o,
99	const list<T> &l)
100	{
101	typename list<T>::const_iterator i;
102	for (i = l.begin (); i != l.end (); ++i) {
103	o << (*i) << " ";
104	};
105	return o << endl;
106	}
107
108	template <typename T>
109	static
110	std::ostream&
111	operator << (std::ostream &o,
112	const list<T*> &l)
113	{
114	typename list<T*>::const_iterator i;
115	for (i = l.begin (); i != l.end (); ++i) {
116	o << (**i) << " ";
117	};
118	return o << endl;
119	}
120
121	bool
122	is_clock (const sc_interface &inter)
123	{
124	equi_t &e = get_equi(inter);
125	equi_t::iterator i;
126	for (i = e.begin (); i != e.end (); ++i) {
127	if (i->kind () == sc_clock::kind_string)
128	return true;
129	}
130	return false;
131	}
132
133
134	// ----------------------------------------------------------------------------
135	// CLASS : method_process_t
136	//
137	// ----------------------------------------------------------------------------
138	method_process_t::method_process_t(const char* nm, SC_ENTRY_FUNC fn, sc_module& mod)
139	{
140	name = nm;
141	func = fn;
142	module = &mod;
143	dont_initialize = false;
144	}
145
146	static
147	bool
148	is_register (const sc_interface &inter)
149	{
150	equi_t &e = get_equi (inter);
151	if (e.size () != 1)
152	return false;
153	sc_object &obj = *(e.begin ()->object);
154	if (obj.kind () != sc_signal_base::kind_string)
155	return false;
156	return true;
157	}
158
159	bool method_process_t::is_combinational(void)
160	{
161	if (sensitivity_list.empty ())
162	return false;
163	sensitivity_list_t::iterator i;
164	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
165	#if defined(CONFIG_DEBUG) && 0
166	if (i->get_interface() == NULL)
167	{
168	cerr << "'" << i << "' is unbound.\n";
169	exit (121);
170	}
171	#endif
172	if ((i->get_flag() == sc_event::VAL)
173	&& (!is_register (i->get_interface())))
174	return true;
175	}
176	return false;
177	}
178
179	bool method_process_t::is_transition(void)
180	{
181	if (sensitivity_list.empty ())
182	return false;
183	sensitivity_list_t::iterator i;
184	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
185	if (i->get_flag () != sc_event::POS)
186	return false;
187	// check if the port is a clock
188	if (is_clock (i->get_interface ()) == false)
189	return false;
190	}
191	return true;
192	}
193
194	bool method_process_t::is_genmoore(void)
195	{
196	// sensitivity list of moore functions includes :
197	// - register (signal unconnected)
198	// - negative edge of port which is bound to a clock signal
199	if (sensitivity_list.empty ())
200	return false;
201	sensitivity_list_t::iterator i;
202	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
203	if ((i->get_flag () == sc_event::VAL)
204	&& (is_register(i->get_interface ())))
205	continue;
206	if ((i->get_flag () == sc_event::NEG)
207	&& (is_clock (i->get_interface ()) == true))
208	continue;
209	return false;
210	}
211	return true;
212	}
213
214	std::ostream& operator << (std::ostream &o, const method_process_t &m)
215	{
216	return o << *(m.module)
217	<< "->"
218	<< m.name
219	<< "() when "
220	<< m.sensitivity_list;
221	}
222
223	// ----------------------------------------------------------------------------
224	// CLASS : sc_module
225	//
226	// ----------------------------------------------------------------------------
227
228
229	sc_module::sc_module(void)
230	: sc_object (NULL),
231	sensitive (this)
232	{
233	#if 0
234	cerr << "sc_module constructor with no parameter\n";
235	#endif
236	init ();
237	}
238
239	sc_module::sc_module(const char* nm)
240	: sc_object (NULL),
241	sensitive (this)
242	{
243	assert(nm != NULL);
244	#if 0
245	cerr << "sc_module constructor with const char * parameter\n";
246	#endif
247	init ();
248	}
249
250
251	sc_module::sc_module(const sc_module_name &nm)
252	: sc_object (NULL),
253	sensitive (this)
254	{
255	#if 0
256	cerr << "sc_module constructor by copy\n";
257	#endif
258	init ();
259	}
260
261	void
262	sc_module::init ()
263	{
264	instances_set.insert (this);
265	temp_list.push_back (this);
266	modules_stack.top () = this;
267	set_save_handler (*this, NULL);
268	#if 0
269	cout << "sc_module <- " << this->name () << endl;
270	#endif
271	}
272
273	void
274	sc_module::dont_initialize ()
275	{
276	sc_core::valid_method_process ();
277	}
278
279
280	void
281	declare_save_handler (const char * name,
282	save_fct_t1 func,
283	sc_module& module)
284	{
285	sc_core::set_save_handler (module, func);
286	}
287
288	typedef std::list<sc_port_base*> port_list_t;
289
290	// Build a port list owned by the module mod
291	static void
292	get_port_list (const sc_module &mod, port_list_t &pl)
293	{
294	port2module_t::iterator i;
295	for (i = port2module.begin (); i != port2module.end (); ++i) {
296	if (i->second == &mod) {
297	pl.push_back ((sc_port_base*)(i->first));
298	}
299	}
300	}
301
302
303	#define BIND(sig) bind(*this, p, port_list, sig)
304
305	static void
306	bind (sc_module &mod,
307	port_list_t::iterator &port_it,
308	port_list_t &port_list,
309	sc_bind_proxy &sig)
310	{
311	if (&sig == &SC_BIND_PROXY_NIL) {
312	return;
313	};
314	if (port_it == port_list.end ()) {
315	cerr << "error : binding port in ";
316	cerr << mod.name ();
317	cerr << " module.\n";
318	exit (7);
319	};
320	bind (**(port_it++), sig);
321	}
322
323	void
324	sc_module::operator () ( /* const */ sc_bind_proxy& p001,
325	/* const */ sc_bind_proxy& p002,
326	/* const */ sc_bind_proxy& p003,
327	/* const */ sc_bind_proxy& p004,
328	/* const */ sc_bind_proxy& p005,
329	/* const */ sc_bind_proxy& p006,
330	/* const */ sc_bind_proxy& p007,
331	/* const */ sc_bind_proxy& p008,
332	/* const */ sc_bind_proxy& p009,
333	/* const */ sc_bind_proxy& p010,
334	/* const */ sc_bind_proxy& p011,
335	/* const */ sc_bind_proxy& p012,
336	/* const */ sc_bind_proxy& p013,
337	/* const */ sc_bind_proxy& p014,
338	/* const */ sc_bind_proxy& p015,
339	/* const */ sc_bind_proxy& p016,
340	/* const */ sc_bind_proxy& p017,
341	/* const */ sc_bind_proxy& p018,
342	/* const */ sc_bind_proxy& p019,
343	/* const */ sc_bind_proxy& p020,
344	/* const */ sc_bind_proxy& p021,
345	/* const */ sc_bind_proxy& p022,
346	/* const */ sc_bind_proxy& p023,
347	/* const */ sc_bind_proxy& p024,
348	/* const */ sc_bind_proxy& p025,
349	/* const */ sc_bind_proxy& p026,
350	/* const */ sc_bind_proxy& p027,
351	/* const */ sc_bind_proxy& p028,
352	/* const */ sc_bind_proxy& p029,
353	/* const */ sc_bind_proxy& p030,
354	/* const */ sc_bind_proxy& p031,
355	/* const */ sc_bind_proxy& p032,
356	/* const */ sc_bind_proxy& p033,
357	/* const */ sc_bind_proxy& p034,
358	/* const */ sc_bind_proxy& p035,
359	/* const */ sc_bind_proxy& p036,
360	/* const */ sc_bind_proxy& p037,
361	/* const */ sc_bind_proxy& p038,
362	/* const */ sc_bind_proxy& p039,
363	/* const */ sc_bind_proxy& p040,
364	/* const */ sc_bind_proxy& p041,
365	/* const */ sc_bind_proxy& p042,
366	/* const */ sc_bind_proxy& p043,
367	/* const */ sc_bind_proxy& p044,
368	/* const */ sc_bind_proxy& p045,
369	/* const */ sc_bind_proxy& p046,
370	/* const */ sc_bind_proxy& p047,
371	/* const */ sc_bind_proxy& p048,
372	/* const */ sc_bind_proxy& p049,
373	/* const */ sc_bind_proxy& p050,
374	/* const */ sc_bind_proxy& p051,
375	/* const */ sc_bind_proxy& p052,
376	/* const */ sc_bind_proxy& p053,
377	/* const */ sc_bind_proxy& p054,
378	/* const */ sc_bind_proxy& p055,
379	/* const */ sc_bind_proxy& p056,
380	/* const */ sc_bind_proxy& p057,
381	/* const */ sc_bind_proxy& p058,
382	/* const */ sc_bind_proxy& p059,
383	/* const */ sc_bind_proxy& p060,
384	/* const */ sc_bind_proxy& p061,
385	/* const */ sc_bind_proxy& p062,
386	/* const */ sc_bind_proxy& p063,
387	/* const */ sc_bind_proxy& p064 )
388	{
389	port_list_t port_list;
390	get_port_list (*this,port_list);
391	cerr << "port list : " << port_list << endl;
392	port_list_t::iterator p = port_list.begin ();
393	BIND( p001 );
394	BIND( p002 );
395	BIND( p003 );
396	BIND( p004 );
397	BIND( p005 );
398	BIND( p006 );
399	BIND( p007 );
400	BIND( p008 );
401	BIND( p009 );
402	BIND( p010 );
403	BIND( p011 );
404	BIND( p012 );
405	BIND( p013 );
406	BIND( p014 );
407	BIND( p015 );
408	BIND( p016 );
409	BIND( p017 );
410	BIND( p018 );
411	BIND( p019 );
412	BIND( p020 );
413	BIND( p021 );
414	BIND( p022 );
415	BIND( p023 );
416	BIND( p024 );
417	BIND( p025 );
418	BIND( p026 );
419	BIND( p027 );
420	BIND( p028 );
421	BIND( p029 );
422	BIND( p030 );
423	BIND( p031 );
424	BIND( p032 );
425	BIND( p033 );
426	BIND( p034 );
427	BIND( p035 );
428	BIND( p036 );
429	BIND( p037 );
430	BIND( p038 );
431	BIND( p039 );
432	BIND( p040 );
433	BIND( p041 );
434	BIND( p042 );
435	BIND( p043 );
436	BIND( p044 );
437	BIND( p045 );
438	BIND( p046 );
439	BIND( p047 );
440	BIND( p048 );
441	BIND( p049 );
442	BIND( p050 );
443	BIND( p051 );
444	BIND( p052 );
445	BIND( p053 );
446	BIND( p054 );
447	BIND( p055 );
448	BIND( p056 );
449	BIND( p057 );
450	BIND( p058 );
451	BIND( p059 );
452	BIND( p060 );
453	BIND( p061 );
454	BIND( p062 );
455	BIND( p063 );
456	BIND( p064 );
457	}
458
459	ostream& operator << (ostream &o, const sc_module &m)
460	{
461	return o << m.name ();
462	}
463
464	// ----------------------------------------------------------------------------
465	// CLASS : sc_module_name
466	//
467	// ----------------------------------------------------------------------------
468
469	sc_module_name::sc_module_name( const char* name_ )
470	: m_pushed(true)
471	{
472	#if 0
473	cerr << "sc_module_name constructor with const char * parameter\n";
474	#endif
475	m_name = name_;
476	init ();
477	}
478
479	sc_module_name::sc_module_name( const sc_module_name &module )
480	: m_pushed(false)
481	{
482	#if 0
483	cerr << "sc_module_name constructor by copy\n";
484	#endif
485	m_name = module.m_name;
486	//init ();
487	}
488
489	void
490	sc_module_name::init ()
491	{
492	sc_core::module_name_stack.push_back (m_name);
493	modules_stack.push (NULL);
494	#if 0
495	cout << "module_name <- " << m_name << endl;
496	#endif
497	}
498
499	sc_module_name::~sc_module_name ()
500	{
501	if (m_pushed == false)
502	return;
503	assert(sc_core::module_name_stack.empty () == false);
504	sc_core::module_name_stack.pop_back ();
505	modules_stack.pop ();
506	#if 0
507	cout << "~sc_module_name <- " << m_name << endl;
508	#endif
509	assert(temp_list.empty () == false);
510	sc_module *last1 = temp_list.back();
511	temp_list.pop_back();
512	sc_module *last2 = (temp_list.empty())?NULL:temp_list.back();
513	set_parent (*last1, last2);
514	}
515
516	std::ostream&
517	operator << (std::ostream& o,
518	const sc_core::sc_module_name &n)
519	{
520	return o << (const char*)n;
521	}
522
523	/////////////////////////////////////////:
524
525	static
526	void
527	check_method_process (const method_process_t &m)
528	{
529	if (m.dont_initialize == false)
530	{
531	assert(m.module != NULL);
532	#ifdef CONFIG_DEBUG
533	std::cerr << "Warning : SystemCASS doesn't perform SC_METHOD(S) initializations.\n"
534	<< "Please turn off automatic initialization for '" << m.name
535	<< "' method of '" << m.module->name () << "' module"
536	" by calling 'dont_initialize()' function.\n"
537	"Example :\n"
538	" SC_METHOD(transition);\n"
539	" sensitive << clk;\n"
540	" dont_initialize ();\n";
541	#endif
542	#if 0
543	exit (250405);
544	#endif
545	}
546	}
547
548	void
549	check_all_method_process ()
550	{
551	method_process_list_t::const_iterator i;
552	for (i = sc_core::method_process_list.begin();
553	i != sc_core::method_process_list.end ();
554	++i)
555	{
556	check_method_process (**i);
557	}
558	}
559
560	void
561	valid_method_process ()
562	{
563	method_process_t *m = sc_core::method_process_list.back();
564	m->dont_initialize = true;
565	}
566
567	method_process_t*
568	create_method_process (const char * name,
569	SC_ENTRY_FUNC func,
570	sc_module& module)
571	{
572	return new method_process_t (name, func, module);
573	}
574
575	} // end of sc_core namespace
576

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