sc_module.cc revision 13317:36c574a4036e 
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/messages.hh"
47#include "systemc/ext/core/sc_module.hh"
48#include "systemc/ext/core/sc_module_name.hh"
49#include "systemc/ext/dt/bit/sc_logic.hh"
50#include "systemc/ext/utils/sc_report_handler.hh"
51
52namespace sc_gem5
53{
54
55Process *
56newMethodProcess(const char *name, ProcessFuncWrapper *func)
57{
58    Method *p = new Method(name, func);
59    if (::sc_core::sc_is_running()) {
60        std::string name = p->name();
61        delete p;
62        SC_REPORT_ERROR(sc_core::SC_ID_MODULE_METHOD_AFTER_START_,
63                name.c_str());
64        return nullptr;
65    }
66    scheduler.reg(p);
67    return p;
68}
69
70Process *
71newThreadProcess(const char *name, ProcessFuncWrapper *func)
72{
73    Thread *p = new Thread(name, func);
74    if (::sc_core::sc_is_running()) {
75        std::string name = p->name();
76        delete p;
77        SC_REPORT_ERROR(sc_core::SC_ID_MODULE_THREAD_AFTER_START_,
78                name.c_str());
79        return nullptr;
80    }
81    scheduler.reg(p);
82    return p;
83}
84
85Process *
86newCThreadProcess(const char *name, ProcessFuncWrapper *func)
87{
88    CThread *p = new CThread(name, func);
89    if (::sc_core::sc_is_running()) {
90        std::string name = p->name();
91        delete p;
92        SC_REPORT_ERROR(sc_core::SC_ID_MODULE_CTHREAD_AFTER_START_,
93                name.c_str());
94        return nullptr;
95    }
96    scheduler.reg(p);
97    p->dontInitialize(true);
98    return p;
99}
100
101} // namespace sc_gem5
102
103namespace sc_core
104{
105
106sc_bind_proxy::sc_bind_proxy(sc_interface &_interface) :
107    _interface(&_interface), _port(nullptr)
108{}
109
110sc_bind_proxy::sc_bind_proxy(sc_port_base &_port) :
111    _interface(nullptr), _port(&_port)
112{}
113
114const sc_bind_proxy SC_BIND_PROXY_NUL(*(sc_port_base *)nullptr);
115
116sc_module::~sc_module() { delete _gem5_module; }
117
118const sc_bind_proxy SC_BIND_PROXY_NIL(*(sc_port_base *)nullptr);
119
120void
121sc_module::operator () (const sc_bind_proxy &p001,
122                        const sc_bind_proxy &p002,
123                        const sc_bind_proxy &p003,
124                        const sc_bind_proxy &p004,
125                        const sc_bind_proxy &p005,
126                        const sc_bind_proxy &p006,
127                        const sc_bind_proxy &p007,
128                        const sc_bind_proxy &p008,
129                        const sc_bind_proxy &p009,
130                        const sc_bind_proxy &p010,
131                        const sc_bind_proxy &p011,
132                        const sc_bind_proxy &p012,
133                        const sc_bind_proxy &p013,
134                        const sc_bind_proxy &p014,
135                        const sc_bind_proxy &p015,
136                        const sc_bind_proxy &p016,
137                        const sc_bind_proxy &p017,
138                        const sc_bind_proxy &p018,
139                        const sc_bind_proxy &p019,
140                        const sc_bind_proxy &p020,
141                        const sc_bind_proxy &p021,
142                        const sc_bind_proxy &p022,
143                        const sc_bind_proxy &p023,
144                        const sc_bind_proxy &p024,
145                        const sc_bind_proxy &p025,
146                        const sc_bind_proxy &p026,
147                        const sc_bind_proxy &p027,
148                        const sc_bind_proxy &p028,
149                        const sc_bind_proxy &p029,
150                        const sc_bind_proxy &p030,
151                        const sc_bind_proxy &p031,
152                        const sc_bind_proxy &p032,
153                        const sc_bind_proxy &p033,
154                        const sc_bind_proxy &p034,
155                        const sc_bind_proxy &p035,
156                        const sc_bind_proxy &p036,
157                        const sc_bind_proxy &p037,
158                        const sc_bind_proxy &p038,
159                        const sc_bind_proxy &p039,
160                        const sc_bind_proxy &p040,
161                        const sc_bind_proxy &p041,
162                        const sc_bind_proxy &p042,
163                        const sc_bind_proxy &p043,
164                        const sc_bind_proxy &p044,
165                        const sc_bind_proxy &p045,
166                        const sc_bind_proxy &p046,
167                        const sc_bind_proxy &p047,
168                        const sc_bind_proxy &p048,
169                        const sc_bind_proxy &p049,
170                        const sc_bind_proxy &p050,
171                        const sc_bind_proxy &p051,
172                        const sc_bind_proxy &p052,
173                        const sc_bind_proxy &p053,
174                        const sc_bind_proxy &p054,
175                        const sc_bind_proxy &p055,
176                        const sc_bind_proxy &p056,
177                        const sc_bind_proxy &p057,
178                        const sc_bind_proxy &p058,
179                        const sc_bind_proxy &p059,
180                        const sc_bind_proxy &p060,
181                        const sc_bind_proxy &p061,
182                        const sc_bind_proxy &p062,
183                        const sc_bind_proxy &p063,
184                        const sc_bind_proxy &p064)
185{
186    std::vector<const ::sc_core::sc_bind_proxy *> proxies;
187    auto insert = [&proxies](const ::sc_core::sc_bind_proxy &p) -> bool {
188        if (!p.port() && !p.interface())
189            return false;
190        proxies.push_back(&p);
191        return true;
192    };
193    insert(p001) && insert(p002) && insert(p003) && insert(p004) &&
194    insert(p005) && insert(p006) && insert(p007) && insert(p008) &&
195    insert(p009) && insert(p010) && insert(p011) && insert(p012) &&
196    insert(p013) && insert(p014) && insert(p015) && insert(p016) &&
197    insert(p017) && insert(p018) && insert(p019) && insert(p020) &&
198    insert(p021) && insert(p022) && insert(p023) && insert(p024) &&
199    insert(p025) && insert(p026) && insert(p027) && insert(p028) &&
200    insert(p029) && insert(p030) && insert(p031) && insert(p032) &&
201    insert(p033) && insert(p034) && insert(p035) && insert(p036) &&
202    insert(p037) && insert(p038) && insert(p039) && insert(p040) &&
203    insert(p041) && insert(p042) && insert(p043) && insert(p044) &&
204    insert(p045) && insert(p046) && insert(p047) && insert(p048) &&
205    insert(p049) && insert(p050) && insert(p051) && insert(p052) &&
206    insert(p053) && insert(p054) && insert(p055) && insert(p056) &&
207    insert(p057) && insert(p058) && insert(p059) && insert(p060) &&
208    insert(p061) && insert(p062) && insert(p063) && insert(p064);
209    _gem5_module->bindPorts(proxies);
210}
211
212sc_module &
213sc_module::operator << (sc_interface &iface)
214{
215    (*this)(iface);
216    return *this;
217}
218
219sc_module &
220sc_module::operator << (sc_port_base &pb)
221{
222    (*this)(pb);
223    return *this;
224}
225
226sc_module &
227sc_module::operator , (sc_interface &iface)
228{
229    (*this)(iface);
230    return *this;
231}
232
233sc_module &
234sc_module::operator , (sc_port_base &pb)
235{
236    (*this)(pb);
237    return *this;
238}
239
240const std::vector<sc_object *> &
241sc_module::get_child_objects() const
242{
243    return _gem5_module->obj()->get_child_objects();
244}
245
246const std::vector<sc_event *> &
247sc_module::get_child_events() const
248{
249    return _gem5_module->obj()->get_child_events();
250}
251
252sc_module::sc_module() :
253    sc_object(sc_gem5::newModuleChecked()->name()),
254    _gem5_module(sc_gem5::currentModule())
255{
256    if (sc_is_running())
257        SC_REPORT_ERROR(SC_ID_INSERT_MODULE_, "simulation running");
258    if (::sc_gem5::scheduler.elaborationDone())
259        SC_REPORT_ERROR(SC_ID_INSERT_MODULE_, "elaboration done");
260}
261
262sc_module::sc_module(const sc_module_name &) : sc_module() {}
263sc_module::sc_module(const char *_name) : sc_module(sc_module_name(_name))
264{
265    _gem5_module->deprecatedConstructor();
266    SC_REPORT_WARNING(SC_ID_BAD_SC_MODULE_CONSTRUCTOR_, _name);
267}
268sc_module::sc_module(const std::string &_name) :
269    sc_module(sc_module_name(_name.c_str()))
270{
271    _gem5_module->deprecatedConstructor();
272    SC_REPORT_WARNING(SC_ID_BAD_SC_MODULE_CONSTRUCTOR_, _name.c_str());
273}
274
275void
276sc_module::end_module()
277{
278    _gem5_module->endModule();
279}
280
281void
282sc_module::reset_signal_is(const sc_in<bool> &port, bool val)
283{
284    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
285}
286
287void
288sc_module::reset_signal_is(const sc_inout<bool> &port, bool val)
289{
290    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
291}
292
293void
294sc_module::reset_signal_is(const sc_out<bool> &port, bool val)
295{
296    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), true, val);
297}
298
299void
300sc_module::reset_signal_is(const sc_signal_in_if<bool> &signal, bool val)
301{
302    ::sc_gem5::newReset(&signal, ::sc_gem5::Process::newest(), true, val);
303}
304
305
306void
307sc_module::async_reset_signal_is(const sc_in<bool> &port, bool val)
308{
309    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
310}
311
312void
313sc_module::async_reset_signal_is(const sc_inout<bool> &port, bool val)
314{
315    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
316}
317
318void
319sc_module::async_reset_signal_is(const sc_out<bool> &port, bool val)
320{
321    ::sc_gem5::newReset(&port, ::sc_gem5::Process::newest(), false, val);
322}
323
324void
325sc_module::async_reset_signal_is(const sc_signal_in_if<bool> &signal, bool val)
326{
327    ::sc_gem5::newReset(&signal, ::sc_gem5::Process::newest(), false, val);
328}
329
330
331void
332sc_module::dont_initialize()
333{
334    ::sc_gem5::Process *p = ::sc_gem5::Process::newest();
335    if (p->procKind() == SC_CTHREAD_PROC_)
336        SC_REPORT_WARNING(SC_ID_DONT_INITIALIZE_, "");
337    p->dontInitialize(true);
338}
339
340void
341sc_module::set_stack_size(size_t size)
342{
343    ::sc_gem5::Process::newest()->setStackSize(size);
344}
345
346
347void sc_module::next_trigger() { ::sc_core::next_trigger(); }
348
349void
350sc_module::next_trigger(const sc_event &e)
351{
352    ::sc_core::next_trigger(e);
353}
354
355void
356sc_module::next_trigger(const sc_event_or_list &eol)
357{
358    ::sc_core::next_trigger(eol);
359}
360
361void
362sc_module::next_trigger(const sc_event_and_list &eal)
363{
364    ::sc_core::next_trigger(eal);
365}
366
367void
368sc_module::next_trigger(const sc_time &t)
369{
370    ::sc_core::next_trigger(t);
371}
372
373void
374sc_module::next_trigger(double d, sc_time_unit u)
375{
376    ::sc_core::next_trigger(d, u);
377}
378
379void
380sc_module::next_trigger(const sc_time &t, const sc_event &e)
381{
382    ::sc_core::next_trigger(t, e);
383}
384
385void
386sc_module::next_trigger(double d, sc_time_unit u, const sc_event &e)
387{
388    ::sc_core::next_trigger(d, u, e);
389}
390
391void
392sc_module::next_trigger(const sc_time &t, const sc_event_or_list &eol)
393{
394    ::sc_core::next_trigger(t, eol);
395}
396
397void
398sc_module::next_trigger(double d, sc_time_unit u, const sc_event_or_list &eol)
399{
400    ::sc_core::next_trigger(d, u, eol);
401}
402
403void
404sc_module::next_trigger(const sc_time &t, const sc_event_and_list &eal)
405{
406    ::sc_core::next_trigger(t, eal);
407}
408
409void
410sc_module::next_trigger(double d, sc_time_unit u, const sc_event_and_list &eal)
411{
412    ::sc_core::next_trigger(d, u, eal);
413}
414
415
416bool
417sc_module::timed_out()
418{
419    return ::sc_core::timed_out();
420}
421
422
423void
424sc_module::wait()
425{
426    ::sc_core::wait();
427}
428
429void
430sc_module::wait(int i)
431{
432    ::sc_core::wait(i);
433}
434
435void
436sc_module::wait(const sc_event &e)
437{
438    ::sc_core::wait(e);
439}
440
441void
442sc_module::wait(const sc_event_or_list &eol)
443{
444    ::sc_core::wait(eol);
445}
446
447void
448sc_module::wait(const sc_event_and_list &eal)
449{
450    ::sc_core::wait(eal);
451}
452
453void
454sc_module::wait(const sc_time &t)
455{
456    ::sc_core::wait(t);
457}
458
459void
460sc_module::wait(double d, sc_time_unit u)
461{
462    ::sc_core::wait(d, u);
463}
464
465void
466sc_module::wait(const sc_time &t, const sc_event &e)
467{
468    ::sc_core::wait(t, e);
469}
470
471void
472sc_module::wait(double d, sc_time_unit u, const sc_event &e)
473{
474    ::sc_core::wait(d, u, e);
475}
476
477void
478sc_module::wait(const sc_time &t, const sc_event_or_list &eol)
479{
480    ::sc_core::wait(t, eol);
481}
482
483void
484sc_module::wait(double d, sc_time_unit u, const sc_event_or_list &eol)
485{
486    ::sc_core::wait(d, u, eol);
487}
488
489void
490sc_module::wait(const sc_time &t, const sc_event_and_list &eal)
491{
492    ::sc_core::wait(t, eal);
493}
494
495void
496sc_module::wait(double d, sc_time_unit u, const sc_event_and_list &eal)
497{
498    ::sc_core::wait(d, u, eal);
499}
500
501
502void
503sc_module::halt()
504{
505    ::sc_core::halt();
506}
507
508void
509sc_module::at_posedge(const sc_signal_in_if<bool> &s)
510{
511    ::sc_core::at_posedge(s);
512}
513
514void
515sc_module::at_posedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
516{
517    ::sc_core::at_posedge(s);
518}
519
520void
521sc_module::at_negedge(const sc_signal_in_if<bool> &s)
522{
523    ::sc_core::at_negedge(s);
524}
525
526void
527sc_module::at_negedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
528{
529    ::sc_core::at_negedge(s);
530}
531
532
533void
534next_trigger()
535{
536    sc_gem5::Process *p = sc_gem5::scheduler.current();
537    p->cancelTimeout();
538    p->clearDynamic();
539}
540
541void
542next_trigger(const sc_event &e)
543{
544    sc_gem5::Process *p = sc_gem5::scheduler.current();
545    p->cancelTimeout();
546    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
547}
548
549void
550next_trigger(const sc_event_or_list &eol)
551{
552    sc_gem5::Process *p = sc_gem5::scheduler.current();
553    p->cancelTimeout();
554    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
555}
556
557void
558next_trigger(const sc_event_and_list &eal)
559{
560    sc_gem5::Process *p = sc_gem5::scheduler.current();
561    p->cancelTimeout();
562    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
563}
564
565void
566next_trigger(const sc_time &t)
567{
568    sc_gem5::Process *p = sc_gem5::scheduler.current();
569    p->setTimeout(t);
570    p->clearDynamic();
571}
572
573void
574next_trigger(double d, sc_time_unit u)
575{
576    next_trigger(sc_time(d, u));
577}
578
579void
580next_trigger(const sc_time &t, const sc_event &e)
581{
582    sc_gem5::Process *p = sc_gem5::scheduler.current();
583    p->setTimeout(t);
584    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
585}
586
587void
588next_trigger(double d, sc_time_unit u, const sc_event &e)
589{
590    next_trigger(sc_time(d, u), e);
591}
592
593void
594next_trigger(const sc_time &t, const sc_event_or_list &eol)
595{
596    sc_gem5::Process *p = sc_gem5::scheduler.current();
597    p->setTimeout(t);
598    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
599}
600
601void
602next_trigger(double d, sc_time_unit u, const sc_event_or_list &eol)
603{
604    next_trigger(sc_time(d, u), eol);
605}
606
607void
608next_trigger(const sc_time &t, const sc_event_and_list &eal)
609{
610    sc_gem5::Process *p = sc_gem5::scheduler.current();
611    p->setTimeout(t);
612    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
613}
614
615void
616next_trigger(double d, sc_time_unit u, const sc_event_and_list &eal)
617{
618    next_trigger(sc_time(d, u), eal);
619}
620
621bool
622timed_out()
623{
624    ::sc_gem5::Process *p = sc_gem5::scheduler.current();
625    if (!p)
626        return false;
627    else
628        return p->timedOut();
629}
630
631
632namespace
633{
634
635bool
636waitErrorCheck(sc_gem5::Process *p)
637{
638    if (p->procKind() == SC_METHOD_PROC_) {
639        SC_REPORT_ERROR(SC_ID_WAIT_NOT_ALLOWED_,
640                "\n        in SC_METHODs use next_trigger() instead");
641        return true;
642    }
643    return false;
644}
645
646} // anonymous namespace
647
648void
649wait()
650{
651    sc_gem5::Process *p = sc_gem5::scheduler.current();
652    if (waitErrorCheck(p))
653        return;
654    p->cancelTimeout();
655    p->clearDynamic();
656    sc_gem5::scheduler.yield();
657}
658
659void
660wait(int n)
661{
662    if (n <= 0) {
663        std::string msg = csprintf("n = %d", n);
664        SC_REPORT_ERROR(SC_ID_WAIT_N_INVALID_, msg.c_str());
665    }
666    sc_gem5::Process *p = sc_gem5::scheduler.current();
667    p->waitCount(n - 1);
668    wait();
669}
670
671void
672wait(const sc_event &e)
673{
674    sc_gem5::Process *p = sc_gem5::scheduler.current();
675    if (waitErrorCheck(p))
676        return;
677    p->cancelTimeout();
678    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
679    sc_gem5::scheduler.yield();
680}
681
682void
683wait(const sc_event_or_list &eol)
684{
685    sc_gem5::Process *p = sc_gem5::scheduler.current();
686    if (waitErrorCheck(p))
687        return;
688    p->cancelTimeout();
689    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
690    sc_gem5::scheduler.yield();
691}
692
693void
694wait(const sc_event_and_list &eal)
695{
696    sc_gem5::Process *p = sc_gem5::scheduler.current();
697    if (waitErrorCheck(p))
698        return;
699    p->cancelTimeout();
700    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
701    sc_gem5::scheduler.yield();
702}
703
704void
705wait(const sc_time &t)
706{
707    sc_gem5::Process *p = sc_gem5::scheduler.current();
708    if (waitErrorCheck(p))
709        return;
710    p->setTimeout(t);
711    p->clearDynamic();
712    sc_gem5::scheduler.yield();
713}
714
715void
716wait(double d, sc_time_unit u)
717{
718    wait(sc_time(d, u));
719}
720
721void
722wait(const sc_time &t, const sc_event &e)
723{
724    sc_gem5::Process *p = sc_gem5::scheduler.current();
725    if (waitErrorCheck(p))
726        return;
727    p->setTimeout(t);
728    ::sc_gem5::newDynamicSensitivityEvent(p, &e);
729    sc_gem5::scheduler.yield();
730}
731
732void
733wait(double d, sc_time_unit u, const sc_event &e)
734{
735    wait(sc_time(d, u), e);
736}
737
738void
739wait(const sc_time &t, const sc_event_or_list &eol)
740{
741    sc_gem5::Process *p = sc_gem5::scheduler.current();
742    if (waitErrorCheck(p))
743        return;
744    p->setTimeout(t);
745    ::sc_gem5::newDynamicSensitivityEventOrList(p, &eol);
746    sc_gem5::scheduler.yield();
747}
748
749void
750wait(double d, sc_time_unit u, const sc_event_or_list &eol)
751{
752    wait(sc_time(d, u), eol);
753}
754
755void
756wait(const sc_time &t, const sc_event_and_list &eal)
757{
758    sc_gem5::Process *p = sc_gem5::scheduler.current();
759    if (waitErrorCheck(p))
760        return;
761    p->setTimeout(t);
762    ::sc_gem5::newDynamicSensitivityEventAndList(p, &eal);
763    sc_gem5::scheduler.yield();
764}
765
766void
767wait(double d, sc_time_unit u, const sc_event_and_list &eal)
768{
769    wait(sc_time(d, u), eal);
770}
771
772void
773halt()
774{
775    ::sc_core::wait();
776    throw ::sc_gem5::ScHalt();
777}
778
779void
780at_posedge(const sc_signal_in_if<bool> &s)
781{
782    while (s.read())
783        wait();
784    while (!s.read())
785        wait();
786}
787
788void
789at_posedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
790{
791    while (s.read() == sc_dt::Log_1)
792        wait();
793    while (s.read() == sc_dt::Log_0)
794        wait();
795}
796
797void
798at_negedge(const sc_signal_in_if<bool> &s)
799{
800    while (!s.read())
801        wait();
802    while (s.read())
803        wait();
804}
805
806void
807at_negedge(const sc_signal_in_if<sc_dt::sc_logic> &s)
808{
809    while (s.read() == sc_dt::Log_0)
810        wait();
811    while (s.read() == sc_dt::Log_1)
812        wait();
813}
814
815const char *
816sc_gen_unique_name(const char *seed)
817{
818    if (!seed || seed[0] == '\0') {
819        SC_REPORT_ERROR(SC_ID_GEN_UNIQUE_NAME_, "");
820        seed = "unnamed";
821    }
822
823    auto mod = sc_gem5::pickParentModule();
824    if (mod)
825        return mod->uniqueName(seed);
826
827    sc_gem5::Process *p = sc_gem5::scheduler.current();
828    if (p)
829        return p->uniqueName(seed);
830
831    return ::sc_gem5::globalNameGen.gen(seed);
832}
833
834bool
835sc_hierarchical_name_exists(const char *name)
836{
837    return sc_gem5::findEvent(name) != sc_gem5::allEvents.end() ||
838        ::sc_gem5::findObject(name, sc_gem5::allObjects);
839}
840
841bool
842sc_start_of_simulation_invoked()
843{
844    return ::sc_gem5::kernel->startOfSimulationComplete();
845}
846
847bool
848sc_end_of_simulation_invoked()
849{
850    return ::sc_gem5::kernel->endOfSimulationComplete();
851}
852
853sc_module *
854sc_module_sc_new(sc_module *mod)
855{
856    static std::vector<std::unique_ptr<sc_module> > modules;
857    modules.emplace_back(mod);
858    return mod;
859}
860
861} // namespace sc_core
862