sc_clock.hh

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#ifndef __SYSTEMC_EXT_CHANNEL_SC_CLOCK_HH__
#define __SYSTEMC_EXT_CHANNEL_SC_CLOCK_HH__
 
#include "../core/sc_time.hh"
#include "sc_signal.hh"
 
namespace sc_gem5
{
 
class ClockTick;
 
} // namespace sc_gem5
 
namespace sc_core
{
 
template <class T>
class sc_in;
 
class sc_time;
 
class sc_clock : public sc_signal<bool>
{
  public:
    sc_clock();
    explicit sc_clock(const char *name);
 
    sc_clock(const char *name, const sc_time &period,
             double duty_cycle=0.5, const sc_time &start_time=SC_ZERO_TIME,
             bool posedge_first=true);
 
    sc_clock(const char *name, double period_v, sc_time_unit period_tu,
             double duty_cycle=0.5);
 
    sc_clock(const char *name, double period_v, sc_time_unit period_tu,
             double duty_cycle, double start_time_v,
             sc_time_unit start_time_tu, bool posedge_first=true);
 
    // Deprecated.
    sc_clock(const char *name, double period, double duty_cycle=0.5,
             double start_time=0.0, bool posedge_first=true);
 
    virtual ~sc_clock();
 
    virtual void write(const bool &);
 
    const sc_time &period() const;
    double duty_cycle() const;
    const sc_time &start_time() const;
    bool posedge_first() const;
 
    // Nonstandard
    static const sc_time &time_stamp();
 
    virtual const char *kind() const { return "sc_clock"; }
 
  protected:
    virtual void before_end_of_elaboration();
 
  private:
    friend class ::sc_gem5::ClockTick;
 
    // Disabled
    sc_clock(const sc_clock &) : sc_interface(), sc_signal<bool>() {}
    sc_clock &operator = (const sc_clock &) { return *this; }
 
    sc_time _period;
    double _dutyCycle;
    sc_time _startTime;
    bool _posedgeFirst;
 
    ::sc_gem5::ClockTick *_gem5UpEdge;
    ::sc_gem5::ClockTick *_gem5DownEdge;
 
    void
    tickUp()
    {
        m_new_val = true;
        request_update();
    }
    void
    tickDown()
    {
        m_new_val = false;
        request_update();
    }
};
 
typedef sc_in<bool> sc_in_clk;
 
// Deprecated
typedef sc_inout<bool> sc_inout_clk;
typedef sc_out<bool> sc_out_clk;
 
} // namespace sc_core
 
#endif  //__SYSTEMC_EXT_CHANNEL_SC_CLOCK_HH__