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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
38	#include "sc_module.h"
39	#include "sc_module_name.h"
40	#include "sc_sensitive.h"
41	#include "module_hierarchy.h"
42	#include "serialization.h" // set_save_handler
43	#include <stdarg.h>
44	#include <vector>
45	#include <string>
46	#include <set>
47	#include "sc_port.h"
48	#include "sc_signal.h"
49	#include "sc_clock.h" // is_clock
50	#include "entity.h"
51	#include <cassert>
52	#ifdef HAVE_CONFIG_H
53	#include "config.h"
54	#endif
55
56	//
57	using namespace std;
58
59	// ----------------------------------------------------------------------------
60	//
61	//
62	// ----------------------------------------------------------------------------
63
64	namespace sc_core {
65	instances_set_t instances_set;
66	instances_list_t temp_list;
67	method_process_list_t method_process_list;
68
69	module_name_stack_t module_name_stack;
70
71	modules_stack_t modules_stack;
72
73	method_process_t *method;
74
75	void
76	declare_method_process (const char * name,
77	SC_ENTRY_FUNC func,
78	sc_module& module)
79	{
80	method = create_method_process (name, func, module);
81	method_process_list.push_back(method);
82	}
83
84
85	ostream&
86	operator << (ostream &o,
87	instances_set_t &l)
88	{
89	instances_set_t::iterator i;
90	for (i = l.begin (); i != l.end (); ++i) {
91	o << (*i)->name () << " ";
92	};
93	return o << endl;
94	}
95
96	template <typename T>
97	static
98	std::ostream&
99	operator << (std::ostream &o,
100	const list<T> &l)
101	{
102	typename list<T>::const_iterator i;
103	for (i = l.begin (); i != l.end (); ++i) {
104	o << (*i) << " ";
105	};
106	return o << endl;
107	}
108
109	template <typename T>
110	static
111	std::ostream&
112	operator << (std::ostream &o,
113	const list<T*> &l)
114	{
115	typename list<T*>::const_iterator i;
116	for (i = l.begin (); i != l.end (); ++i) {
117	o << (**i) << " ";
118	};
119	return o << endl;
120	}
121
122	bool
123	is_clock (const sc_interface &inter)
124	{
125	equi_t &e = get_equi(inter);
126	equi_t::iterator i;
127	for (i = e.begin (); i != e.end (); ++i) {
128	if (i->kind () == sc_clock::kind_string)
129	return true;
130	}
131	return false;
132	}
133
134
135	// ----------------------------------------------------------------------------
136	// CLASS : method_process_t
137	//
138	// ----------------------------------------------------------------------------
139	method_process_t::method_process_t(const char* nm, SC_ENTRY_FUNC fn, sc_module& mod)
140	{
141	name = nm;
142	func = fn;
143	module = &mod;
144	dont_initialize = false;
145	}
146
147	static
148	bool
149	is_register (const sc_interface &inter)
150	{
151	equi_t &e = get_equi (inter);
152	if (e.size () != 1)
153	return false;
154	sc_object &obj = *(e.begin ()->object);
155	if (obj.kind () != sc_signal_base::kind_string)
156	return false;
157	return true;
158	}
159
160	bool method_process_t::is_combinational(void)
161	{
162	if (sensitivity_list.empty ())
163	return false;
164	sensitivity_list_t::iterator i;
165	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
166	#if defined(CONFIG_DEBUG) && 0
167	if (i->get_interface() == NULL)
168	{
169	cerr << "'" << i << "' is unbound.\n";
170	exit (121);
171	}
172	#endif
173	if ((i->get_flag() == sc_event::VAL)
174	&& (!is_register (i->get_interface())))
175	return true;
176	}
177	return false;
178	}
179
180	bool method_process_t::is_transition(void)
181	{
182	if (sensitivity_list.empty ())
183	return false;
184	sensitivity_list_t::iterator i;
185	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
186	if (i->get_flag () != sc_event::POS)
187	return false;
188	// check if the port is a clock
189	if (is_clock (i->get_interface ()) == false)
190	return false;
191	}
192	return true;
193	}
194
195	bool method_process_t::is_genmoore(void)
196	{
197	// sensitivity list of moore functions includes :
198	// - register (signal unconnected)
199	// - negative edge of port which is bound to a clock signal
200	if (sensitivity_list.empty ())
201	return false;
202	sensitivity_list_t::iterator i;
203	for (i = sensitivity_list.begin (); i != sensitivity_list.end (); ++i) {
204	if ((i->get_flag () == sc_event::VAL)
205	&& (is_register(i->get_interface ())))
206	continue;
207	if ((i->get_flag () == sc_event::NEG)
208	&& (is_clock (i->get_interface ()) == true))
209	continue;
210	return false;
211	}
212	return true;
213	}
214
215	std::ostream& operator << (std::ostream &o, const method_process_t &m)
216	{
217	return o << *(m.module)
218	<< "->"
219	<< m.name
220	<< "() when "
221	<< m.sensitivity_list;
222	}
223
224	// ----------------------------------------------------------------------------
225	// CLASS : sc_module
226	//
227	// ----------------------------------------------------------------------------
228
229
230	sc_module::sc_module(void)
231	: sc_object (NULL),
232	sensitive (this)
233	{
234	#if 0
235	cerr << "sc_module constructor with no parameter\n";
236	#endif
237	init ();
238	}
239
240	sc_module::sc_module(const char* nm)
241	: sc_object (NULL),
242	sensitive (this)
243	{
244	assert(nm != NULL);
245	#if 0
246	cerr << "sc_module constructor with const char * parameter\n";
247	#endif
248	init ();
249	}
250
251
252	sc_module::sc_module(const sc_module_name &nm)
253	: sc_object (NULL),
254	sensitive (this)
255	{
256	#if 0
257	cerr << "sc_module constructor by copy\n";
258	#endif
259	init ();
260	}
261
262	void
263	sc_module::init ()
264	{
265	instances_set.insert (this);
266	temp_list.push_back (this);
267	modules_stack.top () = this;
268	set_save_handler (*this, NULL);
269	#if 0
270	cout << "sc_module <- " << this->name () << endl;
271	#endif
272	}
273
274	void
275	sc_module::dont_initialize ()
276	{
277	sc_core::valid_method_process ();
278	}
279
280
281	void
282	declare_save_handler (const char * name,
283	save_fct_t1 func,
284	sc_module& module)
285	{
286	sc_core::set_save_handler (module, func);
287	}
288
289	typedef std::list<sc_port_base*> port_list_t;
290
291	// Build a port list owned by the module mod
292	static void
293	get_port_list (const sc_module &mod, port_list_t &pl)
294	{
295	port2module_t::iterator i;
296	for (i = port2module.begin (); i != port2module.end (); ++i) {
297	if (i->second == &mod) {
298	pl.push_back ((sc_port_base*)(i->first));
299	}
300	}
301	}
302
303
304	#define BIND(sig) bind(*this, p, port_list, sig)
305
306	static void
307	bind (sc_module &mod,
308	port_list_t::iterator &port_it,
309	port_list_t &port_list,
310	sc_bind_proxy &sig)
311	{
312	if (&sig == &SC_BIND_PROXY_NIL) {
313	return;
314	};
315	if (port_it == port_list.end ()) {
316	cerr << "error : binding port in ";
317	cerr << mod.name ();
318	cerr << " module.\n";
319	exit (7);
320	};
321	bind (**(port_it++), sig);
322	}
323
324	void
325	sc_module::operator () ( /* const */ sc_bind_proxy& p001,
326	/* const */ sc_bind_proxy& p002,
327	/* const */ sc_bind_proxy& p003,
328	/* const */ sc_bind_proxy& p004,
329	/* const */ sc_bind_proxy& p005,
330	/* const */ sc_bind_proxy& p006,
331	/* const */ sc_bind_proxy& p007,
332	/* const */ sc_bind_proxy& p008,
333	/* const */ sc_bind_proxy& p009,
334	/* const */ sc_bind_proxy& p010,
335	/* const */ sc_bind_proxy& p011,
336	/* const */ sc_bind_proxy& p012,
337	/* const */ sc_bind_proxy& p013,
338	/* const */ sc_bind_proxy& p014,
339	/* const */ sc_bind_proxy& p015,
340	/* const */ sc_bind_proxy& p016,
341	/* const */ sc_bind_proxy& p017,
342	/* const */ sc_bind_proxy& p018,
343	/* const */ sc_bind_proxy& p019,
344	/* const */ sc_bind_proxy& p020,
345	/* const */ sc_bind_proxy& p021,
346	/* const */ sc_bind_proxy& p022,
347	/* const */ sc_bind_proxy& p023,
348	/* const */ sc_bind_proxy& p024,
349	/* const */ sc_bind_proxy& p025,
350	/* const */ sc_bind_proxy& p026,
351	/* const */ sc_bind_proxy& p027,
352	/* const */ sc_bind_proxy& p028,
353	/* const */ sc_bind_proxy& p029,
354	/* const */ sc_bind_proxy& p030,
355	/* const */ sc_bind_proxy& p031,
356	/* const */ sc_bind_proxy& p032,
357	/* const */ sc_bind_proxy& p033,
358	/* const */ sc_bind_proxy& p034,
359	/* const */ sc_bind_proxy& p035,
360	/* const */ sc_bind_proxy& p036,
361	/* const */ sc_bind_proxy& p037,
362	/* const */ sc_bind_proxy& p038,
363	/* const */ sc_bind_proxy& p039,
364	/* const */ sc_bind_proxy& p040,
365	/* const */ sc_bind_proxy& p041,
366	/* const */ sc_bind_proxy& p042,
367	/* const */ sc_bind_proxy& p043,
368	/* const */ sc_bind_proxy& p044,
369	/* const */ sc_bind_proxy& p045,
370	/* const */ sc_bind_proxy& p046,
371	/* const */ sc_bind_proxy& p047,
372	/* const */ sc_bind_proxy& p048,
373	/* const */ sc_bind_proxy& p049,
374	/* const */ sc_bind_proxy& p050,
375	/* const */ sc_bind_proxy& p051,
376	/* const */ sc_bind_proxy& p052,
377	/* const */ sc_bind_proxy& p053,
378	/* const */ sc_bind_proxy& p054,
379	/* const */ sc_bind_proxy& p055,
380	/* const */ sc_bind_proxy& p056,
381	/* const */ sc_bind_proxy& p057,
382	/* const */ sc_bind_proxy& p058,
383	/* const */ sc_bind_proxy& p059,
384	/* const */ sc_bind_proxy& p060,
385	/* const */ sc_bind_proxy& p061,
386	/* const */ sc_bind_proxy& p062,
387	/* const */ sc_bind_proxy& p063,
388	/* const */ sc_bind_proxy& p064 )
389	{
390	port_list_t port_list;
391	get_port_list (*this,port_list);
392	cerr << "port list : " << port_list << endl;
393	port_list_t::iterator p = port_list.begin ();
394	BIND( p001 );
395	BIND( p002 );
396	BIND( p003 );
397	BIND( p004 );
398	BIND( p005 );
399	BIND( p006 );
400	BIND( p007 );
401	BIND( p008 );
402	BIND( p009 );
403	BIND( p010 );
404	BIND( p011 );
405	BIND( p012 );
406	BIND( p013 );
407	BIND( p014 );
408	BIND( p015 );
409	BIND( p016 );
410	BIND( p017 );
411	BIND( p018 );
412	BIND( p019 );
413	BIND( p020 );
414	BIND( p021 );
415	BIND( p022 );
416	BIND( p023 );
417	BIND( p024 );
418	BIND( p025 );
419	BIND( p026 );
420	BIND( p027 );
421	BIND( p028 );
422	BIND( p029 );
423	BIND( p030 );
424	BIND( p031 );
425	BIND( p032 );
426	BIND( p033 );
427	BIND( p034 );
428	BIND( p035 );
429	BIND( p036 );
430	BIND( p037 );
431	BIND( p038 );
432	BIND( p039 );
433	BIND( p040 );
434	BIND( p041 );
435	BIND( p042 );
436	BIND( p043 );
437	BIND( p044 );
438	BIND( p045 );
439	BIND( p046 );
440	BIND( p047 );
441	BIND( p048 );
442	BIND( p049 );
443	BIND( p050 );
444	BIND( p051 );
445	BIND( p052 );
446	BIND( p053 );
447	BIND( p054 );
448	BIND( p055 );
449	BIND( p056 );
450	BIND( p057 );
451	BIND( p058 );
452	BIND( p059 );
453	BIND( p060 );
454	BIND( p061 );
455	BIND( p062 );
456	BIND( p063 );
457	BIND( p064 );
458	}
459
460	ostream& operator << (ostream &o, const sc_module &m)
461	{
462	return o << m.name ();
463	}
464
465	// ----------------------------------------------------------------------------
466	// CLASS : sc_module_name
467	//
468	// ----------------------------------------------------------------------------
469
470	sc_module_name::sc_module_name( const char* name_ )
471	: m_pushed(true)
472	{
473	#if 0
474	cerr << "sc_module_name constructor with const char * parameter\n";
475	#endif
476	m_name = name_;
477	init ();
478	}
479
480	sc_module_name::sc_module_name( const sc_module_name &module )
481	: m_pushed(false)
482	{
483	#if 0
484	cerr << "sc_module_name constructor by copy\n";
485	#endif
486	m_name = module.m_name;
487	//init ();
488	}
489
490	void
491	sc_module_name::init ()
492	{
493	sc_core::module_name_stack.push_back (m_name);
494	modules_stack.push (NULL);
495	#if 0
496	cout << "module_name <- " << m_name << endl;
497	#endif
498	}
499
500	sc_module_name::~sc_module_name ()
501	{
502	if (m_pushed == false)
503	return;
504	assert(sc_core::module_name_stack.empty () == false);
505	sc_core::module_name_stack.pop_back ();
506	modules_stack.pop ();
507	#if 0
508	cout << "~sc_module_name <- " << m_name << endl;
509	#endif
510	assert(temp_list.empty () == false);
511	sc_module *last1 = temp_list.back();
512	temp_list.pop_back();
513	sc_module *last2 = (temp_list.empty())?NULL:temp_list.back();
514	set_parent (*last1, last2);
515	}
516
517	std::ostream&
518	operator << (std::ostream& o,
519	const sc_core::sc_module_name &n)
520	{
521	return o << (const char*)n;
522	}
523
524	/////////////////////////////////////////:
525
526	static
527	void
528	check_method_process (const method_process_t &m)
529	{
530	if (m.dont_initialize == false)
531	{
532	assert(m.module != NULL);
533	#ifdef CONFIG_DEBUG
534	std::cerr << "Warning : SystemCASS doesn't perform SC_METHOD(S) initializations.\n"
535	<< "Please turn off automatic initialization for '" << m.name
536	<< "' method of '" << m.module->name () << "' module"
537	" by calling 'dont_initialize()' function.\n"
538	"Example :\n"
539	" SC_METHOD(transition);\n"
540	" sensitive << clk;\n"
541	" dont_initialize ();\n";
542	#endif
543	#if 0
544	exit (250405);
545	#endif
546	}
547	}
548
549	void
550	check_all_method_process ()
551	{
552	method_process_list_t::const_iterator i;
553	for (i = sc_core::method_process_list.begin();
554	i != sc_core::method_process_list.end ();
555	++i)
556	{
557	check_method_process (**i);
558	}
559	}
560
561	void
562	valid_method_process ()
563	{
564	method_process_t *m = sc_core::method_process_list.back();
565	m->dont_initialize = true;
566	}
567
568	method_process_t*
569	create_method_process (const char * name,
570	SC_ENTRY_FUNC func,
571	sc_module& module)
572	{
573	return new method_process_t (name, func, module);
574	}
575
576	} // end of sc_core namespace
577

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