108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, 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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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#pragma once
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#include "SdcClass.hh"
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#include "SearchClass.hh"
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#include "StaState.hh"
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#include "Path.hh"
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namespace sta {
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class RiseFall;
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class MinPulseWidthCheck;
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class MinPulseWidthCheckVisitor;
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class CheckMinPulseWidths
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{
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public:
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explicit CheckMinPulseWidths(StaState *sta);
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~CheckMinPulseWidths();
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void clear();
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// Min pulse width checks for pins.
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// corner=nullptr checks all corners.
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MinPulseWidthCheckSeq &check(PinSeq *pins,
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const Corner *corner);
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// All min pulse width checks.
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// corner=nullptr checks all corners.
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MinPulseWidthCheckSeq &check(const Corner *corner);
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// All violating min pulse width checks.
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// corner=nullptr checks all corners.
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MinPulseWidthCheckSeq &violations(const Corner *corner);
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// Min pulse width check with the least slack.
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// corner=nullptr checks all corners.
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MinPulseWidthCheck *minSlackCheck(const Corner *corner);
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protected:
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void visitMinPulseWidthChecks(MinPulseWidthCheckVisitor *visitor);
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void visitMinPulseWidthChecks(Vertex *vertex,
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MinPulseWidthCheckVisitor *visitor);
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MinPulseWidthCheckSeq checks_;
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StaState *sta_;
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};
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class MinPulseWidthCheck
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{
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public:
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explicit MinPulseWidthCheck();
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MinPulseWidthCheck(Path *open_path);
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MinPulseWidthCheck *copy();
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Pin *pin(const StaState *sta) const;
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const RiseFall *openTransition(const StaState *sta) const;
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Arrival width(const StaState *sta) const;
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float minWidth(const StaState *sta) const;
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Slack slack(const StaState *sta) const;
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Path *openPath() { return open_path_; }
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Corner *corner(const StaState *sta) const;
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const Path *openPath() const { return open_path_; }
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Arrival openArrival(const StaState *sta) const;
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Path *closePath(const StaState *sta) const;
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Arrival closeArrival(const StaState *sta) const;
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Arrival openDelay(const StaState *sta) const;
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Arrival closeDelay(const StaState *sta) const;
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float closeOffset(const StaState *sta) const;
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const ClockEdge *openClkEdge(const StaState *sta) const;
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const ClockEdge *closeClkEdge(const StaState *sta) const;
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Crpr checkCrpr(const StaState *sta) const;
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protected:
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// Open path of the pulse.
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Path *open_path_;
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};
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class MinPulseWidthSlackLess
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{
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public:
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explicit MinPulseWidthSlackLess(const StaState *sta);
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bool operator()(const MinPulseWidthCheck *check1,
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const MinPulseWidthCheck *check2) const;
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private:
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const StaState *sta_;
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};
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} // namespace
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