test.cpp revision 12855:588919e0e4aa 
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21
22  test.cpp --
23
24  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
25
26 *****************************************************************************/
27
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30  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
31  changes you are making here.
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33      Name, Affiliation, Date:
34  Description of Modification:
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37
38/*
39I have closed the star. The testcase I'm attaching shows that Cthreads
40used to sample the inputs at the beginnig and therefor it took 2
41cycles to see the results back in sc_main. Hope you could take the
42action to include it in the regression systemc, since I don't know
43what system you guys are using.
44
45Thanks,
46Rocco
47*/
48
49#include "systemc.h"
50
51SC_MODULE(adder_reg) {
52   sc_in<sc_int<8> > a;
53   sc_in<sc_int<8> > b;
54   sc_out<sc_int<9> > c;
55   //sc_in<bool> clk;
56   sc_in_clk clk;
57
58void add() {
59  // c.write(a.read() + b.read()); // *** THIS WON'T COMPILE ***
60   c = a.read() + b.read(); // Must use read() method
61  }
62
63SC_CTOR(adder_reg) {
64   SC_CTHREAD(add, clk.pos());
65  }
66};
67
68int sc_main(int argc, char *argv[])
69{
70  sc_signal< sc_int<8> > a;
71  sc_signal< sc_int<8> > b;
72  sc_signal< sc_int<9> > c;
73  sc_clock clk("CLK", 10, SC_NS, 0.5, 0.0, SC_NS);
74  adder_reg adder_reg("adder");
75  adder_reg(a, b, c, clk);
76  a = 3;
77  b = 6;
78  cout << c.read().to_int() << endl;
79  sc_start(10, SC_NS);
80  cout << c.read().to_int() << endl;
81  sc_start(10, SC_NS);
82
83  // CynAppsTwo clocks to get the answer.
84  // Rocco: No with SC_METHOD it take 1 cycle
85  cout << c.read().to_int() << endl;
86  return 0;
87}
88