sc_clock.cc (12931:2dd5b061490b) | sc_clock.cc (13065:eec7d19ac479) |
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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 --- 14 unchanged lines hidden (view full) --- 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 "base/logging.hh" | 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 --- 14 unchanged lines hidden (view full) --- 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 "base/logging.hh" |
31#include "base/types.hh" 32#include "sim/core.hh" 33#include "sim/eventq.hh" 34#include "systemc/core/kernel.hh" 35#include "systemc/core/sched_event.hh" 36#include "systemc/core/scheduler.hh" |
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31#include "systemc/ext/channel/sc_clock.hh" 32#include "systemc/ext/core/sc_module.hh" // for sc_gen_unique_name 33 | 37#include "systemc/ext/channel/sc_clock.hh" 38#include "systemc/ext/core/sc_module.hh" // for sc_gen_unique_name 39 |
34namespace sc_core | 40namespace sc_gem5 |
35{ 36 | 41{ 42 |
37sc_clock::sc_clock() : 38 sc_interface(), sc_signal<bool>(sc_gen_unique_name("clock")) | 43class ClockTick : public ScEvent |
39{ | 44{ |
40 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 41} | 45 private: 46 ::sc_core::sc_clock *clock; 47 ::sc_core::sc_time _period; 48 std::string _name; 49 Process *p; 50 ProcessMemberFuncWrapper<::sc_core::sc_clock> funcWrapper; 51 std::string _procName; |
42 | 52 |
43sc_clock::sc_clock(const char *name) : sc_interface(), sc_signal<bool>(name) | 53 public: 54 ClockTick(::sc_core::sc_clock *clock, bool to, 55 ::sc_core::sc_time _period) : 56 ScEvent([this]() { tick(); }), 57 clock(clock), _period(_period), _name(clock->name()), 58 funcWrapper(clock, to ? &::sc_core::sc_clock::tickUp : 59 &::sc_core::sc_clock::tickDown) 60 { 61 _name += (to ? ".up_tick" : ".down_tick"); 62 _procName = _name + ".p"; 63 p = newMethodProcess(_procName.c_str(), &funcWrapper); 64 scheduler.dontInitialize(p); 65 } 66 67 ~ClockTick() 68 { 69 if (scheduled()) 70 scheduler.deschedule(this); 71 p->popListNode(); 72 } 73 74 void 75 tick() 76 { 77 scheduler.schedule(this, _period); 78 p->ready(); 79 } 80}; 81 82}; 83 84namespace sc_core |
44{ | 85{ |
45 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 46} | |
47 | 86 |
87sc_clock::sc_clock() : 88 sc_clock(sc_gen_unique_name("clock"), sc_time(1.0, SC_NS), 89 0.5, SC_ZERO_TIME, true) 90{} 91 92sc_clock::sc_clock(const char *name) : 93 sc_clock(name, sc_time(1.0, SC_NS), 0.5, SC_ZERO_TIME, true) 94{} 95 |
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48sc_clock::sc_clock(const char *name, const sc_time &period, 49 double duty_cycle, const sc_time &start_time, | 96sc_clock::sc_clock(const char *name, const sc_time &period, 97 double duty_cycle, const sc_time &start_time, |
50 bool posedge_first) | 98 bool posedge_first) : 99 sc_interface(), sc_signal<bool>(name, posedge_first ? false : true), 100 _period(period), _dutyCycle(duty_cycle), _startTime(start_time), 101 _posedgeFirst(posedge_first) |
51{ | 102{ |
52 warn("%s not implemented.\n", __PRETTY_FUNCTION__); | 103 _gem5UpEdge = new ::sc_gem5::ClockTick(this, true, period); 104 _gem5DownEdge = new ::sc_gem5::ClockTick(this, false, period); |
53} 54 55sc_clock::sc_clock(const char *name, double period_v, sc_time_unit period_tu, | 105} 106 107sc_clock::sc_clock(const char *name, double period_v, sc_time_unit period_tu, |
56 double duty_cycle) 57{ 58 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 59} | 108 double duty_cycle) : 109 sc_clock(name, sc_time(period_v, period_tu), duty_cycle, SC_ZERO_TIME, 110 true) 111{} |
60 61sc_clock::sc_clock(const char *name, double period_v, sc_time_unit period_tu, 62 double duty_cycle, double start_time_v, | 112 113sc_clock::sc_clock(const char *name, double period_v, sc_time_unit period_tu, 114 double duty_cycle, double start_time_v, |
63 sc_time_unit start_time_tu, bool posedge_first) 64{ 65 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 66} | 115 sc_time_unit start_time_tu, bool posedge_first) : 116 sc_clock(name, sc_time(period_v, period_tu), duty_cycle, 117 sc_time(start_time_v, start_time_tu), posedge_first) 118{} |
67 68sc_clock::sc_clock(const char *name, double period, double duty_cycle, | 119 120sc_clock::sc_clock(const char *name, double period, double duty_cycle, |
69 double start_time, bool posedge_first) | 121 double start_time, bool posedge_first) : 122 sc_clock(name, sc_time(period, true), duty_cycle, 123 sc_time(start_time, true), posedge_first) 124{} 125 126sc_clock::~sc_clock() |
70{ | 127{ |
71 warn("%s not implemented.\n", __PRETTY_FUNCTION__); | 128 if (_gem5UpEdge->scheduled()) 129 ::sc_gem5::scheduler.deschedule(_gem5UpEdge); 130 if (_gem5DownEdge->scheduled()) 131 ::sc_gem5::scheduler.deschedule(_gem5DownEdge); 132 delete _gem5UpEdge; 133 delete _gem5DownEdge; |
72} 73 | 134} 135 |
74sc_clock::~sc_clock() {} 75 | |
76void 77sc_clock::write(const bool &) 78{ | 136void 137sc_clock::write(const bool &) 138{ |
79 warn("%s not implemented.\n", __PRETTY_FUNCTION__); | 139 panic("write() called on sc_clock."); |
80} 81 | 140} 141 |
82const sc_time & 83sc_clock::period() const 84{ 85 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 86 return *(const sc_time *)nullptr; 87} | 142const sc_time &sc_clock::period() const { return _period; } 143double sc_clock::duty_cycle() const { return _dutyCycle; } 144const sc_time &sc_clock::start_time() const { return _startTime; } 145bool sc_clock::posedge_first() const { return _posedgeFirst; } |
88 | 146 |
89double 90sc_clock::duty_cycle() const 91{ 92 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 93 return 0.0; 94} 95 | |
96const sc_time & | 147const sc_time & |
97sc_clock::start_time() const | 148sc_clock::time_stamp() |
98{ 99 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 100 return *(const sc_time *)nullptr; 101} 102 | 149{ 150 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 151 return *(const sc_time *)nullptr; 152} 153 |
103bool 104sc_clock::posedge_first() const | 154void 155sc_clock::before_end_of_elaboration() |
105{ | 156{ |
106 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 107 return false; | 157 if (_posedgeFirst) { 158 ::sc_gem5::scheduler.schedule(_gem5UpEdge, _startTime); 159 ::sc_gem5::scheduler.schedule(_gem5DownEdge, 160 _startTime + _period * _dutyCycle); 161 } else { 162 ::sc_gem5::scheduler.schedule(_gem5DownEdge, _startTime); 163 ::sc_gem5::scheduler.schedule(_gem5UpEdge, 164 _startTime + _period * (1.0 - _dutyCycle)); 165 } |
108} 109 | 166} 167 |
110const sc_time & 111sc_clock::time_stamp() 112{ 113 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 114 return *(const sc_time *)nullptr; 115} 116 117const char *sc_clock::kind() const { return "sc_clock"; } 118 119void sc_clock::before_end_of_elaboration() {} 120 | |
121} // namespace sc_core | 168} // namespace sc_core |