source: latest/test_regression/11062007/system.cpp @ 1

#include <systemc.h>
#include <signal.h>

using namespace std;
        
struct A : sc_module {
        sc_in_clk                       clk;
        sc_out<bool>                    o1;

        void eval () {
    o1 = (rand()%2) == 0;
        }

        SC_CTOR (A) : clk ("clk"), o1("o1") {
                SC_METHOD(eval);
                sensitive << clk.neg();
#ifdef SYSTEMCASS_SPECIFIC
//              s1();
#endif
        };
};

struct B : sc_module {
        sc_in_clk                       clk;
        sc_in<bool>                     i1;
        sc_in<bool>                     i2;
        sc_out<bool>                    o1;
        sc_out<bool>                    o2;

        void eval1 () {
    o1 = ~i1;
        }
        void eval2 () {
    o2 = ~i2;
        }

        SC_CTOR (B) : clk ("clk"), i1 ("i1"), o1("o1"), i2 ("i2"), o2 ("o2") {
                SC_METHOD(eval1);
                sensitive << clk.neg();
                sensitive << i1;
#ifdef SYSTEMCASS_SPECIFIC
                o1(i1);
#endif
                SC_METHOD(eval2);
                sensitive << clk.neg();
                sensitive << i2;
#ifdef SYSTEMCASS_SPECIFIC
                o2(i2);
#endif
        };
};

struct C : sc_module {
        sc_in_clk                       clk;
        sc_in<bool>                     i1;
        sc_in<bool>                     i2;
        sc_out<bool>                    o1;

        void eval1 () {
    o1 = i1 ^ i2;
        }

        SC_CTOR (C) : clk ("clk"), i1 ("i1"), o1("o1"), i2 ("i2") {
                SC_METHOD(eval1);
                sensitive << clk.neg();
                sensitive << i1 << i2;
#ifdef SYSTEMCASS_SPECIFIC
                o1(i1);
                o1(i2);
#endif
        };
};

struct D : sc_module {
        sc_in_clk                       clk;
        sc_out<bool>                    o1;

        void eval () {
    o1 = (rand()%2) == 0;
        }

        SC_CTOR (D) : clk ("clk"), o1("o1") {
                SC_METHOD(eval);
                sensitive << clk.neg();
#ifdef SYSTEMCASS_SPECIFIC
//              s1();
#endif
        };
};

int sc_main (int argc, char *argv[])
{
        sc_clock                     signal_clk("my_clock",1, 0.5);
        sc_signal<bool>              s1("s1"),s2("s2"),s3("s3"),s4("s4"),s5("s5");

        A      a("a");
        B      b("b");
        C      c("c");
        D      d("d");
        
        a.clk         (signal_clk);
        b.clk         (signal_clk);
        c.clk         (signal_clk);
        d.clk         (signal_clk);
        
        a.o1          (s1);
        b.i1          (s1);
                
        d.o1          (s2);
        c.i2          (s2);

        b.o1          (s3);
        c.i1          (s3);
        
        c.o1          (s4);
        b.i2          (s4);
        
        b.o2          (s5);
        
        // Init & run
        sc_initialize ();

  if (argc == 1)
  {
    cout << "Usage :\n" << argv[0] << " [#cycles]\n";
    return EXIT_SUCCESS;
  }

  sc_start (atoi(argv[1]));

  cout << s1.read() << endl;
  cout << s2.read() << endl;
  cout << s3.read() << endl;
  cout << s4.read() << endl;
  cout << s5.read() << endl;

        return EXIT_SUCCESS;
}