sc_time.cc revision 12983
112837Sgabeblack@google.com/* 212837Sgabeblack@google.com * Copyright 2018 Google, Inc. 312837Sgabeblack@google.com * 412837Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 512837Sgabeblack@google.com * modification, are permitted provided that the following conditions are 612837Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 712837Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 812837Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 912837Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1012837Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1112837Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1212837Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1312837Sgabeblack@google.com * this software without specific prior written permission. 1412837Sgabeblack@google.com * 1512837Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612837Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712837Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812837Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912837Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012837Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112837Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212837Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312837Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412837Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512837Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612837Sgabeblack@google.com * 2712837Sgabeblack@google.com * Authors: Gabe Black 2812837Sgabeblack@google.com */ 2912837Sgabeblack@google.com 3012837Sgabeblack@google.com#include "base/logging.hh" 3112837Sgabeblack@google.com#include "systemc/ext/core/sc_time.hh" 3212837Sgabeblack@google.com 3312837Sgabeblack@google.comnamespace sc_core 3412837Sgabeblack@google.com{ 3512837Sgabeblack@google.com 3612983Sgabeblack@google.comnamespace 3712837Sgabeblack@google.com{ 3812983Sgabeblack@google.com 3912983Sgabeblack@google.comconst char *TimeUnitNames[] = { 4012983Sgabeblack@google.com [SC_FS] = "fs", 4112983Sgabeblack@google.com [SC_PS] = "ps", 4212983Sgabeblack@google.com [SC_NS] = "ns", 4312983Sgabeblack@google.com [SC_US] = "us", 4412983Sgabeblack@google.com [SC_MS] = "ms", 4512983Sgabeblack@google.com [SC_SEC] = "s" 4612983Sgabeblack@google.com}; 4712983Sgabeblack@google.com 4812983Sgabeblack@google.comdouble TimeUnitScale[] = { 4912983Sgabeblack@google.com [SC_FS] = 1.0e-15, 5012983Sgabeblack@google.com [SC_PS] = 1.0e-12, 5112983Sgabeblack@google.com [SC_NS] = 1.0e-9, 5212983Sgabeblack@google.com [SC_US] = 1.0e-6, 5312983Sgabeblack@google.com [SC_MS] = 1.0e-3, 5412983Sgabeblack@google.com [SC_SEC] = 1.0 5512983Sgabeblack@google.com}; 5612983Sgabeblack@google.com 5712983Sgabeblack@google.com} // anonymous namespace 5812983Sgabeblack@google.com 5912983Sgabeblack@google.comsc_time::sc_time() : val(0) {} 6012983Sgabeblack@google.com 6112983Sgabeblack@google.comsc_time::sc_time(double d, sc_time_unit tu) 6212983Sgabeblack@google.com{ 6312983Sgabeblack@google.com val = 0; 6412983Sgabeblack@google.com if (d != 0) { 6512983Sgabeblack@google.com //XXX Assuming the time resolution is 1ps. 6612983Sgabeblack@google.com double scale = TimeUnitScale[tu] / TimeUnitScale[SC_PS]; 6712983Sgabeblack@google.com // Accellera claims there is a linux bug, and that these next two 6812983Sgabeblack@google.com // lines work around them. 6912983Sgabeblack@google.com volatile double tmp = d * scale + 0.5; 7012983Sgabeblack@google.com val = static_cast<uint64_t>(tmp); 7112983Sgabeblack@google.com } 7212837Sgabeblack@google.com} 7312837Sgabeblack@google.com 7412983Sgabeblack@google.comsc_time::sc_time(const sc_time &t) 7512837Sgabeblack@google.com{ 7612983Sgabeblack@google.com val = t.val; 7712837Sgabeblack@google.com} 7812837Sgabeblack@google.com 7912925Sgabeblack@google.comsc_time::sc_time(double, bool) 8012925Sgabeblack@google.com{ 8112925Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 8212925Sgabeblack@google.com} 8312925Sgabeblack@google.com 8412925Sgabeblack@google.comsc_time::sc_time(sc_dt::uint64, bool) 8512925Sgabeblack@google.com{ 8612925Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 8712925Sgabeblack@google.com} 8812925Sgabeblack@google.com 8912837Sgabeblack@google.comsc_time & 9012983Sgabeblack@google.comsc_time::operator = (const sc_time &t) 9112837Sgabeblack@google.com{ 9212983Sgabeblack@google.com val = t.val; 9312837Sgabeblack@google.com return *this; 9412837Sgabeblack@google.com} 9512837Sgabeblack@google.com 9612837Sgabeblack@google.comsc_dt::uint64 9712837Sgabeblack@google.comsc_time::value() const 9812837Sgabeblack@google.com{ 9912983Sgabeblack@google.com return val; 10012837Sgabeblack@google.com} 10112837Sgabeblack@google.com 10212837Sgabeblack@google.comdouble 10312837Sgabeblack@google.comsc_time::to_double() const 10412837Sgabeblack@google.com{ 10512837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 10612837Sgabeblack@google.com return 0.0; 10712837Sgabeblack@google.com} 10812837Sgabeblack@google.comdouble 10912837Sgabeblack@google.comsc_time::to_seconds() const 11012837Sgabeblack@google.com{ 11112837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 11212837Sgabeblack@google.com return 0.0; 11312837Sgabeblack@google.com} 11412837Sgabeblack@google.com 11512837Sgabeblack@google.comconst std::string 11612837Sgabeblack@google.comsc_time::to_string() const 11712837Sgabeblack@google.com{ 11812837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 11912837Sgabeblack@google.com return ""; 12012837Sgabeblack@google.com} 12112837Sgabeblack@google.com 12212837Sgabeblack@google.combool 12312983Sgabeblack@google.comsc_time::operator == (const sc_time &t) const 12412837Sgabeblack@google.com{ 12512983Sgabeblack@google.com return val == t.val; 12612837Sgabeblack@google.com} 12712837Sgabeblack@google.com 12812837Sgabeblack@google.combool 12912983Sgabeblack@google.comsc_time::operator != (const sc_time &t) const 13012837Sgabeblack@google.com{ 13112983Sgabeblack@google.com return val != t.val; 13212837Sgabeblack@google.com} 13312837Sgabeblack@google.com 13412837Sgabeblack@google.combool 13512983Sgabeblack@google.comsc_time::operator < (const sc_time &t) const 13612837Sgabeblack@google.com{ 13712983Sgabeblack@google.com return val < t.val; 13812837Sgabeblack@google.com} 13912837Sgabeblack@google.com 14012837Sgabeblack@google.combool 14112983Sgabeblack@google.comsc_time::operator <= (const sc_time &t) const 14212837Sgabeblack@google.com{ 14312983Sgabeblack@google.com return val <= t.val; 14412837Sgabeblack@google.com} 14512837Sgabeblack@google.com 14612837Sgabeblack@google.combool 14712983Sgabeblack@google.comsc_time::operator > (const sc_time &t) const 14812837Sgabeblack@google.com{ 14912983Sgabeblack@google.com return val > t.val; 15012837Sgabeblack@google.com} 15112837Sgabeblack@google.com 15212837Sgabeblack@google.combool 15312983Sgabeblack@google.comsc_time::operator >= (const sc_time &t) const 15412837Sgabeblack@google.com{ 15512983Sgabeblack@google.com return val >= t.val; 15612837Sgabeblack@google.com} 15712837Sgabeblack@google.com 15812837Sgabeblack@google.comsc_time & 15912983Sgabeblack@google.comsc_time::operator += (const sc_time &t) 16012837Sgabeblack@google.com{ 16112983Sgabeblack@google.com val += t.val; 16212837Sgabeblack@google.com return *this; 16312837Sgabeblack@google.com} 16412837Sgabeblack@google.com 16512837Sgabeblack@google.comsc_time & 16612983Sgabeblack@google.comsc_time::operator -= (const sc_time &t) 16712837Sgabeblack@google.com{ 16812983Sgabeblack@google.com val -= t.val; 16912837Sgabeblack@google.com return *this; 17012837Sgabeblack@google.com} 17112837Sgabeblack@google.com 17212837Sgabeblack@google.comsc_time & 17312837Sgabeblack@google.comsc_time::operator *= (double) 17412837Sgabeblack@google.com{ 17512837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 17612837Sgabeblack@google.com return *this; 17712837Sgabeblack@google.com} 17812837Sgabeblack@google.com 17912837Sgabeblack@google.comsc_time & 18012837Sgabeblack@google.comsc_time::operator /= (double) 18112837Sgabeblack@google.com{ 18212837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 18312837Sgabeblack@google.com return *this; 18412837Sgabeblack@google.com} 18512837Sgabeblack@google.com 18612837Sgabeblack@google.comvoid 18712983Sgabeblack@google.comsc_time::print(std::ostream &os) const 18812837Sgabeblack@google.com{ 18912983Sgabeblack@google.com if (val == 0) { 19012983Sgabeblack@google.com os << "0 s"; 19112983Sgabeblack@google.com } else { 19212983Sgabeblack@google.com //XXX Assuming the time resolution is 1ps. 19312983Sgabeblack@google.com sc_time_unit tu = SC_PS; 19412983Sgabeblack@google.com uint64_t scaled = val; 19512983Sgabeblack@google.com while (tu < SC_SEC && (scaled % 1000) == 0) { 19612983Sgabeblack@google.com tu = (sc_time_unit)((int)tu + 1); 19712983Sgabeblack@google.com scaled /= 1000; 19812983Sgabeblack@google.com } 19912983Sgabeblack@google.com 20012983Sgabeblack@google.com os << scaled << ' ' << TimeUnitNames[tu]; 20112983Sgabeblack@google.com } 20212837Sgabeblack@google.com} 20312837Sgabeblack@google.com 20412923Sgabeblack@google.comsc_time 20512983Sgabeblack@google.comsc_time::from_value(sc_dt::uint64 u) 20612923Sgabeblack@google.com{ 20712983Sgabeblack@google.com sc_time t; 20812983Sgabeblack@google.com t.val = u; 20912983Sgabeblack@google.com return t; 21012923Sgabeblack@google.com} 21112923Sgabeblack@google.com 21212923Sgabeblack@google.comsc_time 21312923Sgabeblack@google.comsc_time::from_seconds(double) 21412923Sgabeblack@google.com{ 21512923Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 21612923Sgabeblack@google.com return sc_time(); 21712923Sgabeblack@google.com} 21812923Sgabeblack@google.com 21912923Sgabeblack@google.comsc_time 22012923Sgabeblack@google.comsc_time::from_string(const char *str) 22112923Sgabeblack@google.com{ 22212923Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 22312923Sgabeblack@google.com return sc_time(); 22412923Sgabeblack@google.com} 22512923Sgabeblack@google.com 22612837Sgabeblack@google.comconst sc_time 22712837Sgabeblack@google.comoperator + (const sc_time &, const sc_time &) 22812837Sgabeblack@google.com{ 22912837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 23012837Sgabeblack@google.com return sc_time(); 23112837Sgabeblack@google.com} 23212837Sgabeblack@google.com 23312837Sgabeblack@google.comconst sc_time 23412837Sgabeblack@google.comoperator - (const sc_time &, const sc_time &) 23512837Sgabeblack@google.com{ 23612837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 23712837Sgabeblack@google.com return sc_time(); 23812837Sgabeblack@google.com} 23912837Sgabeblack@google.com 24012837Sgabeblack@google.comconst sc_time 24112837Sgabeblack@google.comoperator * (const sc_time &, double) 24212837Sgabeblack@google.com{ 24312837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 24412837Sgabeblack@google.com return sc_time(); 24512837Sgabeblack@google.com} 24612837Sgabeblack@google.com 24712837Sgabeblack@google.comconst sc_time 24812837Sgabeblack@google.comoperator * (double, const sc_time &) 24912837Sgabeblack@google.com{ 25012837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 25112837Sgabeblack@google.com return sc_time(); 25212837Sgabeblack@google.com} 25312837Sgabeblack@google.com 25412837Sgabeblack@google.comconst sc_time 25512837Sgabeblack@google.comoperator / (const sc_time &, double) 25612837Sgabeblack@google.com{ 25712837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 25812837Sgabeblack@google.com return sc_time(); 25912837Sgabeblack@google.com} 26012837Sgabeblack@google.com 26112837Sgabeblack@google.comdouble 26212837Sgabeblack@google.comoperator / (const sc_time &, const sc_time &) 26312837Sgabeblack@google.com{ 26412837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 26512837Sgabeblack@google.com return 0.0; 26612837Sgabeblack@google.com} 26712837Sgabeblack@google.com 26812837Sgabeblack@google.comstd::ostream & 26912983Sgabeblack@google.comoperator << (std::ostream &os, const sc_time &t) 27012837Sgabeblack@google.com{ 27112983Sgabeblack@google.com t.print(os); 27212837Sgabeblack@google.com return os; 27312837Sgabeblack@google.com} 27412837Sgabeblack@google.com 27512837Sgabeblack@google.comconst sc_time SC_ZERO_TIME; 27612837Sgabeblack@google.com 27712837Sgabeblack@google.comvoid 27812837Sgabeblack@google.comsc_set_time_resolution(double, sc_time_unit) 27912837Sgabeblack@google.com{ 28012837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 28112837Sgabeblack@google.com} 28212837Sgabeblack@google.com 28312837Sgabeblack@google.comsc_time 28412837Sgabeblack@google.comsc_get_time_resolution() 28512837Sgabeblack@google.com{ 28612837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 28712837Sgabeblack@google.com return sc_time(); 28812837Sgabeblack@google.com} 28912837Sgabeblack@google.com 29012837Sgabeblack@google.comconst sc_time & 29112837Sgabeblack@google.comsc_max_time() 29212837Sgabeblack@google.com{ 29312837Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 29412837Sgabeblack@google.com return *(const sc_time *)nullptr; 29512837Sgabeblack@google.com} 29612837Sgabeblack@google.com 29712916Sgabeblack@google.comvoid 29812916Sgabeblack@google.comsc_set_default_time_unit(double, sc_time_unit) 29912916Sgabeblack@google.com{ 30012916Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 30112916Sgabeblack@google.com} 30212916Sgabeblack@google.com 30312916Sgabeblack@google.comsc_time 30412916Sgabeblack@google.comsc_get_default_time_unit() 30512916Sgabeblack@google.com{ 30612916Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 30712916Sgabeblack@google.com return *(sc_time *)nullptr; 30812916Sgabeblack@google.com} 30912916Sgabeblack@google.com 31012927Sgabeblack@google.comsc_time_tuple::sc_time_tuple(const sc_time &) 31112927Sgabeblack@google.com{ 31212927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 31312927Sgabeblack@google.com} 31412927Sgabeblack@google.com 31512927Sgabeblack@google.combool 31612927Sgabeblack@google.comsc_time_tuple::has_value() const 31712927Sgabeblack@google.com{ 31812927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 31912927Sgabeblack@google.com return false; 32012927Sgabeblack@google.com} 32112927Sgabeblack@google.com 32212927Sgabeblack@google.comsc_dt::uint64 32312927Sgabeblack@google.comsc_time_tuple::value() const 32412927Sgabeblack@google.com{ 32512927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 32612927Sgabeblack@google.com return 0; 32712927Sgabeblack@google.com} 32812927Sgabeblack@google.com 32912927Sgabeblack@google.comconst char * 33012927Sgabeblack@google.comsc_time_tuple::unit_symbol() const 33112927Sgabeblack@google.com{ 33212927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 33312927Sgabeblack@google.com return ""; 33412927Sgabeblack@google.com} 33512927Sgabeblack@google.com 33612927Sgabeblack@google.comdouble 33712927Sgabeblack@google.comsc_time_tuple::to_double() const 33812927Sgabeblack@google.com{ 33912927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 34012927Sgabeblack@google.com return 0.0; 34112927Sgabeblack@google.com} 34212927Sgabeblack@google.com 34312927Sgabeblack@google.comstd::string 34412927Sgabeblack@google.comsc_time_tuple::to_string() const 34512927Sgabeblack@google.com{ 34612927Sgabeblack@google.com warn("%s not implemented.\n", __PRETTY_FUNCTION__); 34712927Sgabeblack@google.com return ""; 34812927Sgabeblack@google.com} 34912927Sgabeblack@google.com 35012837Sgabeblack@google.com} // namespace sc_core 351