159 lines
3.8 KiB
C++
159 lines
3.8 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2024, 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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#pragma once
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#include <cstdint>
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#include <string>
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#include <vector>
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#include <map>
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#include <algorithm>
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#include "StaState.hh"
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namespace sta {
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using std::string;
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using std::vector;
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using std::map;
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using std::max;
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using std::min;
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class VcdVar;
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class VcdValue;
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typedef vector<VcdValue> VcdValues;
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typedef int64_t VcdTime;
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typedef vector<string> VcdScope;
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typedef map<string, VcdVar*> VcdNameMap;
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enum class VcdVarType {
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wire,
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reg,
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parameter,
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integer,
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real,
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supply0,
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supply1,
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time,
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tri,
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triand,
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trior,
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trireg,
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tri0,
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tri1,
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wand,
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wor,
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unknown
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};
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class Vcd : public StaState
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{
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public:
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Vcd(StaState *sta);
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Vcd(const Vcd &vcd);
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// Move copy assignment.
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Vcd& operator=(Vcd &&vcd1);
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~Vcd();
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VcdVar *var(const string name);
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VcdValues &values(VcdVar *var);
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const string &date() const { return date_; }
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void setDate(const string &date);
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const string &comment() const { return comment_; }
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void setComment(const string &comment);
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const string &version() const { return version_; }
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void setVersion(const string &version);
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double timeScale() const { return time_scale_; }
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void setTimeScale(double time_scale);
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const string &timeUnit() const { return time_unit_; }
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double timeUnitScale() const { return time_unit_scale_; }
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void setTimeUnit(const string &time_unit,
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double time_unit_scale);
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VcdTime timeMax() const { return time_max_; }
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void setTimeMax(VcdTime time_max);
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VcdTime minDeltaTime() const { return min_delta_time_; }
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void setMinDeltaTime(VcdTime min_delta_time);
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vector<VcdVar*> vars() { return vars_; }
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void makeVar(string &name,
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VcdVarType type,
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int width,
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string &id);
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int maxVarWidth() const { return max_var_width_; }
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int maxVarNameLength() const { return max_var_name_length_; }
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bool varIdValid(string &id);
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void varAppendValue(string &id,
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VcdTime time,
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char value);
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void varAppendBusValue(string &id,
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VcdTime time,
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int64_t bus_value);
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private:
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string date_;
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string comment_;
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string version_;
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double time_scale_;
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string time_unit_;
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double time_unit_scale_;
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vector<VcdVar*> vars_;
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VcdNameMap var_name_map_;
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size_t max_var_name_length_;
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int max_var_width_;
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map<string, VcdValues> id_values_map_;
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VcdTime min_delta_time_;
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VcdTime time_max_;
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};
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class VcdVar
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{
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public:
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VcdVar(string name,
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VcdVarType type,
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int width,
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string id);
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const string& name() const { return name_; }
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VcdVarType type() const { return type_; }
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int width() const { return width_; }
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const string& id() const { return id_; }
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private:
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string name_;
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VcdVarType type_;
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int width_;
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string id_;
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};
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class VcdValue
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{
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public:
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VcdValue(VcdTime time,
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char value,
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uint64_t bus_value);
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VcdTime time() const { return time_; }
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char value() const { return value_; }
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uint64_t busValue() const { return bus_value_; }
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char value(int value_bit) const;
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private:
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VcdTime time_;
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// 01XUZ or '\0' when width > 1 to use bus_value_.
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char value_;
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uint64_t bus_value_;
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};
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} // namespace
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