#include "systemc.h"

#define ASSERT(x) \
  { errnum++; \
    if (!(x)) \
    { \
    cerr << "ASSERT : " #x "\n"; \
    exit (errnum); \
    } \
  }

using namespace std;

struct hard : sc_module
{
  sc_in_clk    clk;
  sc_in <int>  i1, i2;
  sc_out<int>  o1, o2;

  void f ()
  {
    o1 = i1;
    o2 = i2;
  }

  SC_HAS_PROCESS(hard);
  hard(sc_module_name)
  {
    SC_METHOD(f);
    dont_initialize();
    sensitive << i1 << i2;
#ifdef SYSTEMCASS_SPECIFIC
    o1 (i1);
    o2 (i2);
#endif
  }
};

int
sc_main (int argc, char ** argv)
{
  sc_clock        clk1("clk1");
  sc_clock        clk2("clk2", 1, 0.5, 0, false);
  sc_signal<int>  s[10];
  hard a("a");
  hard b("b");
  hard c("c");

  a.clk (clk1);
  b.clk (clk2);
  c.clk (clk2);

  a.i1 (s[0]);

  a.o1 (s[1]);
  b.i1 (s[1]);

  b.o1 (s[2]);

  b.i2 (s[3]);

  b.o2 (s[4]);
  a.i2 (s[4]);

  a.o2 (s[5]);

  c.i1 (s[6]);
  c.o1 (s[7]);
  c.i2 (s[8]);
  c.o2 (s[9]);

 	/* Open trace file */
	sc_trace_file *system_trace_file;
	system_trace_file = sc_create_vcd_trace_file ("trace_file");
	
	/* clks waveforms are always useful */
	sc_trace(system_trace_file, clk1, "clk1");
	sc_trace(system_trace_file, clk2, "clk2");

  /* others signals */ 
  for (int i = 0; i < 10; ++i)
    sc_trace(system_trace_file, s[i], sc_gen_unique_name ("s"));
 
  /* initilization */
  sc_initialize ();

  s[0] = 1;
  s[3] = 1;

  sc_start (1);

  s[0] = 123;
  s[3] = 321;

  sc_start (1);

  return 0;
}