sc_module.cc revision 13315 
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include <memory>
31#include <string>
32#include <vector>
33
34#include "base/logging.hh"
35#include "systemc/core/event.hh"
36#include "systemc/core/kernel.hh"
37#include "systemc/core/module.hh"
38#include "systemc/core/object.hh"
39#include "systemc/core/port.hh"
40#include "systemc/core/process_types.hh"
41#include "systemc/core/sensitivity.hh"
42#include "systemc/ext/channel/sc_in.hh"
43#include "systemc/ext/channel/sc_inout.hh"
44#include "systemc/ext/channel/sc_out.hh"
45#include "systemc/ext/channel/sc_signal_in_if.hh"
46#include "systemc/ext/core/sc_module.hh"
47#include "systemc/ext/core/sc_module_name.hh"
48#include "systemc/ext/dt/bit/sc_logic.hh"
49#include "systemc/ext/utils/sc_report_handler.hh"
50
51namespace sc_gem5
52{
53
54Process *
55newMethodProcess(const char *name, ProcessFuncWrapper *func)
56{
57    Method *p = new Method(name, func);
58    if (::sc_core::sc_is_running()) {
59        std::string name = p->name();
60        delete p;
61        SC_REPORT_ERROR("(E541) call to SC_METHOD in sc_module while "
62                "simulation running", name.c_str());
63        return nullptr;
64    }
65    scheduler.reg(p);
66    return p;
67}
68
69Process *
70newThreadProcess(const char *name, ProcessFuncWrapper *func)
71{
72    Thread *p = new Thread(name, func);
73    if (::sc_core::sc_is_running()) {
74        std::string name = p->name();
75        delete p;
76        SC_REPORT_ERROR("(E542) call to SC_THREAD in sc_module while "
77                "simulation running", name.c_str());
78        return nullptr;
79    }
80    scheduler.reg(p);
81    return p;
82}
83
84Process *
85newCThreadProcess(const char *name, ProcessFuncWrapper *func)
86{
87    CThread *p = new CThread(name, func);
88    if (::sc_core::sc_is_running()) {
89        std::string name = p->name();
90        delete p;
91        SC_REPORT_ERROR("(E543) call to SC_CTHREAD in sc_module while "
92                "simulation running", name.c_str());
93        return nullptr;
94    }
95    scheduler.reg(p);
96    p->dontInitialize(true);
97    return p;
98}
99
100} // namespace sc_gem5
101
102namespace sc_core
103{
104
105sc_bind_proxy::sc_bind_proxy(sc_interface &_interface) :
106    _interface(&_interface), _port(nullptr)
107{}
108
109sc_bind_proxy::sc_bind_proxy(sc_port_base &_port) :
110    _interface(nullptr), _port(&_port)
111{}
112
113const sc_bind_proxy SC_BIND_PROXY_NUL(*(sc_port_base *)nullptr);
114
115sc_module::~sc_module() { delete _gem5_module; }
116
117const sc_bind_proxy SC_BIND_PROXY_NIL(*(sc_port_base *)nullptr);
118
119void
120sc_module::operator () (const sc_bind_proxy &p001,
121                        const sc_bind_proxy &p002,
122                        const sc_bind_proxy &p003,
123                        const sc_bind_proxy &p004,
124                        const sc_bind_proxy &p005,
125                        const sc_bind_proxy &p006,
126                        const sc_bind_proxy &p007,
127                        const sc_bind_proxy &p008,
128                        const sc_bind_proxy &p009,
129                        const sc_bind_proxy &p010,
130                        const sc_bind_proxy &p011,
131                        const sc_bind_proxy &p012,
132                        const sc_bind_proxy &p013,
133                        const sc_bind_proxy &p014,
134                        const sc_bind_proxy &p015,
135                        const sc_bind_proxy &p016,
136                        const sc_bind_proxy &p017,
137                        const sc_bind_proxy &p018,
138                        const sc_bind_proxy &p019,
139                        const sc_bind_proxy &p020,
140                        const sc_bind_proxy &p021,
141                        const sc_bind_proxy &p022,
142                        const sc_bind_proxy &p023,
143                        const sc_bind_proxy &p024,
144                        const sc_bind_proxy &p025,
145                        const sc_bind_proxy &p026,
146                        const sc_bind_proxy &p027,
147                        const sc_bind_proxy &p028,
148                        const sc_bind_proxy &p029,
149                        const sc_bind_proxy &p030,
150                        const sc_bind_proxy &p031,
151                        const sc_bind_proxy &p032,
152                        const sc_bind_proxy &p033,
153                        const sc_bind_proxy &p034,
154                        const sc_bind_proxy &p035,
155                        const sc_bind_proxy &p036,
156                        const sc_bind_proxy &p037,
157                        const sc_bind_proxy &p038,
158                        const sc_bind_proxy &p039,
159                        const sc_bind_proxy &p040,
160                        const sc_bind_proxy &p041,
161                        const sc_bind_proxy &p042,
162                        const sc_bind_proxy &p043,
163                        const sc_bind_proxy &p044,
164                        const sc_bind_proxy &p045,
165                        const sc_bind_proxy &p046,
166                        const sc_bind_proxy &p047,
167                        const sc_bind_proxy &p048,
168                        const sc_bind_proxy &p049,
169                        const sc_bind_proxy &p050,
170                        const sc_bind_proxy &p051,
171                        const sc_bind_proxy &p052,
172                        const sc_bind_proxy &p053,
173                        const sc_bind_proxy &p054,
174                        const sc_bind_proxy &p055,
175                        const sc_bind_proxy &p056,
176                        const sc_bind_proxy &p057,
177                        const sc_bind_proxy &p058,
178                        const sc_bind_proxy &p059,
179                        const sc_bind_proxy &p060,
180                        const sc_bind_proxy &p061,
181                        const sc_bind_proxy &p062,
182                        const sc_bind_proxy &p063,
183                        const sc_bind_proxy &p064)
184{
185    std::vector<const ::sc_core::sc_bind_proxy *> proxies;
186    auto insert = [&proxies](const ::sc_core::sc_bind_proxy &p) -> bool {
187        if (!p.port() && !p.interface())
188            return false;
189        proxies.push_back(&p);
190        return true;
191    };
192    insert(p001) && insert(p002) && insert(p003) && insert(p004) &&
193    insert(p005) && insert(p006) && insert(p007) && insert(p008) &&
194    insert(p009) && insert(p010) && insert(p011) && insert(p012) &&
195    insert(p013) && insert(p014) && insert(p015) && insert(p016) &&
196    insert(p017) && insert(p018) && insert(p019) && insert(p020) &&
197    insert(p021) && insert(p022) && insert(p023) && insert(p024) &&
198    insert(p025) && insert(p026) && insert(p027) && insert(p028) &&
199    insert(p029) && insert(p030) && insert(p031) && insert(p032) &&
200    insert(p033) && insert(p034) && insert(p035) && insert(p036) &&
201    insert(p037) && insert(p038) && insert(p039) && insert(p040) &&
202    insert(p041) && insert(p042) && insert(p043) && insert(p044) &&
203    insert(p045) && insert(p046) && insert(p047) && insert(p048) &&
204    insert(p049) && insert(p050) && insert(p051) && insert(p052) &&
205    insert(p053) && insert(p054) && insert(p055) && insert(p056) &&
206    insert(p057) && insert(p058) && insert(p059) && insert(p060) &&
207    insert(p061) && insert(p062) && insert(p063) && insert(p064);
208    _gem5_module->bindPorts(proxies);
209}
210
211sc_module &
212sc_module::operator << (sc_interface &iface)
213{
214    (*this)(iface);
215    return *this;
216}
217
218sc_module &
219sc_module::operator << (sc_port_base &pb)
220{
221    (*this)(pb);
222    return *this;
223}
224
225sc_module &
226sc_module::operator , (sc_interface &iface)
227{
228    (*this)(iface);
229    return *this;
230}
231
232sc_module &
233sc_module::operator , (sc_port_base &pb)
234{
235    (*this)(pb);
236    return *this;
237}
238
239const std::vector<sc_object *> &
240sc_module::get_child_objects() const
241{
242    return _gem5_module->obj()->get_child_objects();
243}
244
245const std::vector<sc_event *> &
246sc_module::get_child_events() const
247{
248    return _gem5_module->obj()->get_child_events();
249}
250
251sc_module::sc_module() :
252    sc_object(sc_gem5::newModuleChecked()->name()),
253    _gem5_module(sc_gem5::currentModule())
254{
255    if (sc_is_running()) {
256        SC_REPORT_ERROR("(E529) insert module failed", "simulation running");
257        std::cout << "Running!\n";
258    }
259    if (::sc_gem5::scheduler.elaborationDone()) {
260        SC_REPORT_ERROR("(E529) insert module failed", "elaboration done");
261        std::cout << "Elaboration done!\n";
262    }
263}
264
265sc_module::sc_module(const sc_module_name &) : sc_module() {}
266sc_module::sc_module(const char *_name) : sc_module(sc_module_name(_name))
267{
268    _gem5_module->deprecatedConstructor();
269    SC_REPORT_WARNING("(W569) sc_module(const char*), "
270            "sc_module(const std::string&) have been deprecated, use "
271            "sc_module(const sc_module_name&)", _name);
272}
273sc_module::sc_module(const std::string &_name) :
274    sc_module(sc_module_name(_name.c_str()))
275{
276    _gem5_module->deprecatedConstructor();
277    SC_REPORT_WARNING("(W569) sc_module(const char*), "
278            "sc_module(const std::string&) have been deprecated, use "
279            "sc_module(const sc_module_name&)", _name.c_str());
280}
281
282void
283sc_module::end_module()
284{
285    _gem5_module->endModule();
286}
287
288void
289sc_module::reset_signal_is(const sc_in<bool> &port, bool val)
290{
291    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
292}
293
294void
295sc_module::reset_signal_is(const sc_inout<bool> &port, bool val)
296{
297    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
298}
299
300void
301sc_module::reset_signal_is(const sc_out<bool> &port, bool val)
302{
303    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
304}
305
306void
307sc_module::reset_signal_is(const sc_signal_in_if<bool> &signal, bool val)
308{
309    ::sc_gem5::newReset(&signal, ::sc_gem5::Process::newest(), true, val);
310}
311
312
313void
314sc_module::async_reset_signal_is(const sc_in<bool> &port, bool val)
315{
316    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
317}
318
319void
320sc_module::async_reset_signal_is(const sc_inout<bool> &port, bool val)
321{
322    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
323}
324
325void
326sc_module::async_reset_signal_is(const sc_out<bool> &port, bool val)
327{
328    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
329}
330
331void
332sc_module::async_reset_signal_is(const sc_signal_in_if<bool> &signal, bool val)
333{
334    ::sc_gem5::newReset(&signal, ::sc_gem5::Process::newest(), false, val);
335}
336
337
338void
339sc_module::dont_initialize()
340{
341    ::sc_gem5::Process *p = ::sc_gem5::Process::newest();
342    if (p->procKind() == SC_CTHREAD_PROC_) {
343        SC_REPORT_WARNING("(W524) dont_initialize() has no effect for "
344                "SC_CTHREADs", "");
345    }
346    p->dontInitialize(true);
347}
348
349void
350sc_module::set_stack_size(size_t size)
351{
352    ::sc_gem5::Process::newest()->setStackSize(size);
353}
354
355
356void sc_module::next_trigger() { ::sc_core::next_trigger(); }
357
358void
359sc_module::next_trigger(const sc_event &e)
360{
361    ::sc_core::next_trigger(e);
362}
363
364void
365sc_module::next_trigger(const sc_event_or_list &eol)
366{
367    ::sc_core::next_trigger(eol);
368}
369
370void
371sc_module::next_trigger(const sc_event_and_list &eal)
372{
373    ::sc_core::next_trigger(eal);
374}
375
376void
377sc_module::next_trigger(const sc_time &t)
378{
379    ::sc_core::next_trigger(t);
380}
381
382void
383sc_module::next_trigger(double d, sc_time_unit u)
384{
385    ::sc_core::next_trigger(d, u);
386}
387
388void
389sc_module::next_trigger(const sc_time &t, const sc_event &e)
390{
391    ::sc_core::next_trigger(t, e);
392}
393
394void
395sc_module::next_trigger(double d, sc_time_unit u, const sc_event &e)
396{
397    ::sc_core::next_trigger(d, u, e);
398}
399
400void
401sc_module::next_trigger(const sc_time &t, const sc_event_or_list &eol)
402{
403    ::sc_core::next_trigger(t, eol);
404}
405
406void
407sc_module::next_trigger(double d, sc_time_unit u, const sc_event_or_list &eol)
408{
409    ::sc_core::next_trigger(d, u, eol);
410}
411
412void
413sc_module::next_trigger(const sc_time &t, const sc_event_and_list &eal)
414{
415    ::sc_core::next_trigger(t, eal);
416}
417
418void
419sc_module::next_trigger(double d, sc_time_unit u, const sc_event_and_list &eal)
420{
421    ::sc_core::next_trigger(d, u, eal);
422}
423
424
425bool
426sc_module::timed_out()
427{
428    return ::sc_core::timed_out();
429}
430
431
432void
433sc_module::wait()
434{
435    ::sc_core::wait();
436}
437
438void
439sc_module::wait(int i)
440{
441    ::sc_core::wait(i);
442}
443
444void
445sc_module::wait(const sc_event &e)
446{
447    ::sc_core::wait(e);
448}
449
450void
451sc_module::wait(const sc_event_or_list &eol)
452{
453    ::sc_core::wait(eol);
454}
455
456void
457sc_module::wait(const sc_event_and_list &eal)
458{
459    ::sc_core::wait(eal);
460}
461
462void
463sc_module::wait(const sc_time &t)
464{
465    ::sc_core::wait(t);
466}
467
468void
469sc_module::wait(double d, sc_time_unit u)
470{
471    ::sc_core::wait(d, u);
472}
473
474void
475sc_module::wait(const sc_time &t, const sc_event &e)
476{
477    ::sc_core::wait(t, e);
478}
479
480void
481sc_module::wait(double d, sc_time_unit u, const sc_event &e)
482{
483    ::sc_core::wait(d, u, e);
484}
485
486void
487sc_module::wait(const sc_time &t, const sc_event_or_list &eol)
488{
489    ::sc_core::wait(t, eol);
490}
491
492void
493sc_module::wait(double d, sc_time_unit u, const sc_event_or_list &eol)
494{
495    ::sc_core::wait(d, u, eol);
496}
497
498void
499sc_module::wait(const sc_time &t, const sc_event_and_list &eal)
500{
501    ::sc_core::wait(t, eal);
502}
503
504void
505sc_module::wait(double d, sc_time_unit u, const sc_event_and_list &eal)
506{
507    ::sc_core::wait(d, u, eal);
508}
509
510
511void
512sc_module::halt()
513{
514    ::sc_core::halt();
515}
516
517void
518sc_module::at_posedge(const sc_signal_in_if<bool> &s)
519{
520    ::sc_core::at_posedge(s);
521}
522
523void
524sc_module::at_posedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
525{
526    ::sc_core::at_posedge(s);
527}
528
529void
530sc_module::at_negedge(const sc_signal_in_if<bool> &s)
531{
532    ::sc_core::at_negedge(s);
533}
534
535void
536sc_module::at_negedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
537{
538    ::sc_core::at_negedge(s);
539}
540
541
542void
543next_trigger()
544{
545    sc_gem5::Process *p = sc_gem5::scheduler.current();
546    p->cancelTimeout();
547    p->clearDynamic();
548}
549
550void
551next_trigger(const sc_event &e)
552{
553    sc_gem5::Process *p = sc_gem5::scheduler.current();
554    p->cancelTimeout();
555    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
556}
557
558void
559next_trigger(const sc_event_or_list &eol)
560{
561    sc_gem5::Process *p = sc_gem5::scheduler.current();
562    p->cancelTimeout();
563    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
564}
565
566void
567next_trigger(const sc_event_and_list &eal)
568{
569    sc_gem5::Process *p = sc_gem5::scheduler.current();
570    p->cancelTimeout();
571    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
572}
573
574void
575next_trigger(const sc_time &t)
576{
577    sc_gem5::Process *p = sc_gem5::scheduler.current();
578    p->setTimeout(t);
579    p->clearDynamic();
580}
581
582void
583next_trigger(double d, sc_time_unit u)
584{
585    next_trigger(sc_time(d, u));
586}
587
588void
589next_trigger(const sc_time &t, const sc_event &e)
590{
591    sc_gem5::Process *p = sc_gem5::scheduler.current();
592    p->setTimeout(t);
593    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
594}
595
596void
597next_trigger(double d, sc_time_unit u, const sc_event &e)
598{
599    next_trigger(sc_time(d, u), e);
600}
601
602void
603next_trigger(const sc_time &t, const sc_event_or_list &eol)
604{
605    sc_gem5::Process *p = sc_gem5::scheduler.current();
606    p->setTimeout(t);
607    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
608}
609
610void
611next_trigger(double d, sc_time_unit u, const sc_event_or_list &eol)
612{
613    next_trigger(sc_time(d, u), eol);
614}
615
616void
617next_trigger(const sc_time &t, const sc_event_and_list &eal)
618{
619    sc_gem5::Process *p = sc_gem5::scheduler.current();
620    p->setTimeout(t);
621    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
622}
623
624void
625next_trigger(double d, sc_time_unit u, const sc_event_and_list &eal)
626{
627    next_trigger(sc_time(d, u), eal);
628}
629
630bool
631timed_out()
632{
633    ::sc_gem5::Process *p = sc_gem5::scheduler.current();
634    if (!p)
635        return false;
636    else
637        return p->timedOut();
638}
639
640
641namespace
642{
643
644bool
645waitErrorCheck(sc_gem5::Process *p)
646{
647    if (p->procKind() == SC_METHOD_PROC_) {
648        SC_REPORT_ERROR(
649                "(E519) wait() is only allowed in SC_THREADs and SC_CTHREADs",
650                "\n        in SC_METHODs use next_trigger() instead");
651        return true;
652    }
653    return false;
654}
655
656} // anonymous namespace
657
658void
659wait()
660{
661    sc_gem5::Process *p = sc_gem5::scheduler.current();
662    if (waitErrorCheck(p))
663        return;
664    p->cancelTimeout();
665    p->clearDynamic();
666    sc_gem5::scheduler.yield();
667}
668
669void
670wait(int n)
671{
672    if (n <= 0) {
673        std::string msg = csprintf("n = %d", n);
674        SC_REPORT_ERROR("(E525) wait(n) is only valid for n > 0", msg.c_str());
675    }
676    sc_gem5::Process *p = sc_gem5::scheduler.current();
677    p->waitCount(n - 1);
678    wait();
679}
680
681void
682wait(const sc_event &e)
683{
684    sc_gem5::Process *p = sc_gem5::scheduler.current();
685    if (waitErrorCheck(p))
686        return;
687    p->cancelTimeout();
688    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
689    sc_gem5::scheduler.yield();
690}
691
692void
693wait(const sc_event_or_list &eol)
694{
695    sc_gem5::Process *p = sc_gem5::scheduler.current();
696    if (waitErrorCheck(p))
697        return;
698    p->cancelTimeout();
699    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
700    sc_gem5::scheduler.yield();
701}
702
703void
704wait(const sc_event_and_list &eal)
705{
706    sc_gem5::Process *p = sc_gem5::scheduler.current();
707    if (waitErrorCheck(p))
708        return;
709    p->cancelTimeout();
710    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
711    sc_gem5::scheduler.yield();
712}
713
714void
715wait(const sc_time &t)
716{
717    sc_gem5::Process *p = sc_gem5::scheduler.current();
718    if (waitErrorCheck(p))
719        return;
720    p->setTimeout(t);
721    p->clearDynamic();
722    sc_gem5::scheduler.yield();
723}
724
725void
726wait(double d, sc_time_unit u)
727{
728    wait(sc_time(d, u));
729}
730
731void
732wait(const sc_time &t, const sc_event &e)
733{
734    sc_gem5::Process *p = sc_gem5::scheduler.current();
735    if (waitErrorCheck(p))
736        return;
737    p->setTimeout(t);
738    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
739    sc_gem5::scheduler.yield();
740}
741
742void
743wait(double d, sc_time_unit u, const sc_event &e)
744{
745    wait(sc_time(d, u), e);
746}
747
748void
749wait(const sc_time &t, const sc_event_or_list &eol)
750{
751    sc_gem5::Process *p = sc_gem5::scheduler.current();
752    if (waitErrorCheck(p))
753        return;
754    p->setTimeout(t);
755    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
756    sc_gem5::scheduler.yield();
757}
758
759void
760wait(double d, sc_time_unit u, const sc_event_or_list &eol)
761{
762    wait(sc_time(d, u), eol);
763}
764
765void
766wait(const sc_time &t, const sc_event_and_list &eal)
767{
768    sc_gem5::Process *p = sc_gem5::scheduler.current();
769    if (waitErrorCheck(p))
770        return;
771    p->setTimeout(t);
772    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
773    sc_gem5::scheduler.yield();
774}
775
776void
777wait(double d, sc_time_unit u, const sc_event_and_list &eal)
778{
779    wait(sc_time(d, u), eal);
780}
781
782void
783halt()
784{
785    ::sc_core::wait();
786    throw ::sc_gem5::ScHalt();
787}
788
789void
790at_posedge(const sc_signal_in_if<bool> &s)
791{
792    while (s.read())
793        wait();
794    while (!s.read())
795        wait();
796}
797
798void
799at_posedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
800{
801    while (s.read() == sc_dt::Log_1)
802        wait();
803    while (s.read() == sc_dt::Log_0)
804        wait();
805}
806
807void
808at_negedge(const sc_signal_in_if<bool> &s)
809{
810    while (!s.read())
811        wait();
812    while (s.read())
813        wait();
814}
815
816void
817at_negedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
818{
819    while (s.read() == sc_dt::Log_0)
820        wait();
821    while (s.read() == sc_dt::Log_1)
822        wait();
823}
824
825const char *
826sc_gen_unique_name(const char *seed)
827{
828    if (!seed || seed[0] == '\0') {
829        SC_REPORT_ERROR(
830                "(E532) cannot generate unique name from null string", "");
831        seed = "unnamed";
832    }
833
834    auto mod = sc_gem5::pickParentModule();
835    if (mod)
836        return mod->uniqueName(seed);
837
838    sc_gem5::Process *p = sc_gem5::scheduler.current();
839    if (p)
840        return p->uniqueName(seed);
841
842    return ::sc_gem5::globalNameGen.gen(seed);
843}
844
845bool
846sc_hierarchical_name_exists(const char *name)
847{
848    return sc_gem5::findEvent(name) != sc_gem5::allEvents.end() ||
849        ::sc_gem5::findObject(name, sc_gem5::allObjects);
850}
851
852bool
853sc_start_of_simulation_invoked()
854{
855    return ::sc_gem5::kernel->startOfSimulationComplete();
856}
857
858bool
859sc_end_of_simulation_invoked()
860{
861    return ::sc_gem5::kernel->endOfSimulationComplete();
862}
863
864sc_module *
865sc_module_sc_new(sc_module *mod)
866{
867    static std::vector<std::unique_ptr<sc_module> > modules;
868    modules.emplace_back(mod);
869    return mod;
870}
871
872} // namespace sc_core
873