116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2020, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include "DataCheck.hh"
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#include "Clock.hh"
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namespace sta {
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DataCheck::DataCheck(Pin *from,
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Pin *to,
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Clock *clk) :
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from_(from),
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to_(to),
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clk_(clk)
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{
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}
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void
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DataCheck::margin(const RiseFall *from_rf,
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const RiseFall *to_rf,
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const SetupHold *setup_hold,
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// Return values.
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float &margin,
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bool &exists) const
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{
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return margins_[from_rf->index()].value(to_rf, setup_hold,
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margin, exists);
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}
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void
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DataCheck::setMargin(const RiseFallBoth *from_rf,
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const RiseFallBoth *to_rf,
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const SetupHoldAll *setup_hold,
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float margin)
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{
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for (auto from_rf_index : from_rf->rangeIndex())
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margins_[from_rf_index].setValue(to_rf, setup_hold, margin);
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}
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void
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DataCheck::removeMargin(const RiseFallBoth *from_rf,
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const RiseFallBoth *to_rf,
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const SetupHoldAll *setup_hold)
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{
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for (auto from_rf_index : from_rf->rangeIndex())
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margins_[from_rf_index].removeValue(to_rf, setup_hold);
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}
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bool
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DataCheck::empty() const
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{
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for (auto tr_index : RiseFall::rangeIndex()) {
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if (!margins_[tr_index].empty())
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return false;
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}
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return true;
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}
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void
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DataCheck::marginIsOneValue(SetupHold *setup_hold,
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// Return values.
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float &value,
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bool &one_value) const
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{
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float value1, value2;
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if (margins_[RiseFall::riseIndex()].isOneValue(setup_hold, value1)
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&& margins_[RiseFall::fallIndex()].isOneValue(setup_hold, value2)
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&& value1 == value2) {
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value = value1;
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one_value = true;
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}
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else
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one_value = false;
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}
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////////////////////////////////////////////////////////////////
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DataCheckLess::DataCheckLess(const Network *network) :
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pin_less_(network)
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{
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}
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bool
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DataCheckLess::operator()(const DataCheck *check1,
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const DataCheck *check2) const
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{
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const Pin *from1 = check1->from();
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const Pin *from2 = check2->from();
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const Pin *to1 = check1->to();
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const Pin *to2 = check2->to();
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const Clock *clk1 = check1->clk();
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const Clock *clk2 = check2->clk();
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int clk_cmp = clkCmp(clk1, clk2);
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return pin_less_(from1, from2)
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|| (from1 == from2
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&& (pin_less_(to1, to2)
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|| (to1 == to2
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&& clk_cmp < 0)));
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}
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} // namespace
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