GPRGuardEncoding.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file GPRGuardEncoding.hh
 *
 * Declaration of GPRGuardEncoding class.
 *
 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_GPR_GUARD_ENCODING_HH
#define TTA_GPR_GUARD_ENCODING_HH
 
#include <string>
 
#include "GuardEncoding.hh"
#include "Exception.hh"
 
/**
 * The GPRGuardEncoding class maps a guard expression with general purpose
 * register term to a control code.
 *
 * Instances of this class are always registered to a guard field.
 */
class GPRGuardEncoding : public GuardEncoding {
public:
    GPRGuardEncoding(
        const std::string& regFile, int index, bool inverted,
        unsigned int encoding, GuardField& parent);
    GPRGuardEncoding(const ObjectState* state, GuardField& parent);
    virtual ~GPRGuardEncoding();
 
    std::string registerFile() const;
    int registerIndex() const;
 
    virtual ObjectState* saveState() const;
 
    /// ObjectState name for GPR guard encoding.
    static const std::string OSNAME_GPR_GUARD_ENCODING;
    /// ObjectState attribute key for the name of the register file.
    static const std::string OSKEY_RF_NAME;
    /// ObjectState attribute key for register index.
    static const std::string OSKEY_REGISTER_INDEX;
 
private:
    /// Name of the register file.
    std::string regFile_;
    /// Register index.
    int index_;
};
 
#endif