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| // MIT License | ||
| // | ||
| // Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved. | ||
| // Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved. | ||
| // Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved. | ||
| // Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All Rights reserved. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
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| #pragma once | ||
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| #include "hal_core/utilities/result.h" | ||
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| #include <set> | ||
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| namespace hal | ||
| { | ||
| class Netlist; | ||
| class Gate; | ||
| class Net; | ||
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| namespace hawkeye | ||
| { | ||
| class RegisterCandidate | ||
| { | ||
| public: | ||
| RegisterCandidate() = default; | ||
| ~RegisterCandidate() = default; | ||
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| /** | ||
| * Construct a state register candidate from the state register of a round-based implementation. | ||
| * | ||
| * @param[in] round_reg - The state register. | ||
| */ | ||
| RegisterCandidate(const std::set<Gate*>& round_reg); | ||
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| /** | ||
| * Construct a state register candidate from the state register of a round-based implementation. | ||
| * | ||
| * @param[in] round_reg - The state register. | ||
| */ | ||
| RegisterCandidate(std::set<Gate*>&& round_reg); | ||
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| /** | ||
| * Construct a state register candidate from the input and output registers from a round of a pipelined implementation. | ||
| * | ||
| * @param[in] in_reg - The input register. | ||
| * @param[in] out_reg - The output register. | ||
| */ | ||
| RegisterCandidate(const std::set<Gate*>& in_reg, const std::set<Gate*>& out_reg); | ||
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| /** | ||
| * Construct a state register candidate from the input and output registers from a round of a pipelined implementation. | ||
| * | ||
| * @param[in] in_reg - The input register. | ||
| * @param[in] out_reg - The output register. | ||
| */ | ||
| RegisterCandidate(std::set<Gate*>&& in_reg, std::set<Gate*>&& out_reg); | ||
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| bool operator==(const RegisterCandidate& rhs) const; | ||
| bool operator<(const RegisterCandidate& rhs) const; | ||
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| /** | ||
| * Get the netlist associated with the candidate. | ||
| * | ||
| * @return The netlist of the candidate. | ||
| */ | ||
| Netlist* get_netlist() const; | ||
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| /** | ||
| * Get the size of the candidate, i.e., the width of its registers. | ||
| * | ||
| * @returns The size of the candidate. | ||
| */ | ||
| u32 get_size() const; | ||
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| /** | ||
| * Check if the candidate is round-based, i.e., input and output register are the same. | ||
| * | ||
| * @returns `true` if the candidate is round-based, `false` otherwise. | ||
| */ | ||
| bool is_round_based() const; | ||
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| /** | ||
| * Get the candidate's input register. | ||
| * | ||
| * @returns The input register of the candidate. | ||
| */ | ||
| const std::set<Gate*>& get_input_reg() const; | ||
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| /** | ||
| * Get the candidate's output register. | ||
| * | ||
| * @returns The output register of the candidate. | ||
| */ | ||
| const std::set<Gate*>& get_output_reg() const; | ||
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| private: | ||
| /** | ||
| * The netlist to which the candidate belongs. | ||
| */ | ||
| Netlist* m_netlist; | ||
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| /** | ||
| * The bit-size of the candidate. | ||
| */ | ||
| u32 m_size; | ||
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| /** | ||
| * Is `true` when the the candidate is round-based, i.e., input and output register are the same. | ||
| */ | ||
| bool m_is_round_based; | ||
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| /** | ||
| * The candidate input register. | ||
| */ | ||
| std::set<Gate*> m_in_reg; | ||
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| /** | ||
| * The candidate output register. May be equal to `m_in_reg` for round-based implementations. | ||
| */ | ||
| std::set<Gate*> m_out_reg; | ||
| }; | ||
| } // namespace hawkeye | ||
| } // namespace hal |
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