OneCycleOperationExecutor.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 OneCycleOperationExecutor.hh
 *
 * Declaration of OneCycleOperationExecutor class.
 *
 * @author Jussi Nykänen 2004 (nykanen-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_ONE_CYCLE_OPERATION_EXECUTOR_HH
#define TTA_ONE_CYCLE_OPERATION_EXECUTOR_HH
 
#include <string>
 
#include "OperationExecutor.hh"
 
class OperationContext;
 
/**
 * Operation executor for one cycle latency operations.
 */
class OneCycleOperationExecutor : public OperationExecutor {
public:
    explicit OneCycleOperationExecutor(FUState& parent);
    virtual ~OneCycleOperationExecutor();
 
    virtual int latency() const;
    virtual void startOperation(Operation& op);
 
    virtual void advanceClock();
 
    virtual OperationExecutor* copy();
    virtual void setContext(OperationContext& context);
 
private:
    /// Assignment not allowed.
    OneCycleOperationExecutor& operator=(const OneCycleOperationExecutor&);
 
    void initializeIOVector();
 
    /// Operation context.
    OperationContext* context_;
    /// Operation to be executed next.
    Operation* operation_;
    /// Inputs and outputs for the operation.
    SimValue** io_;   
    /// True if all the results are ready.
    bool ready_;
    /// True if the io_ vector is initialized-
    bool ioVectorInitialized_;
};
 
#endif