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| /***************************************************************************** |
| |
| test.cpp -- |
| |
| Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| /* |
| I have closed the star. The testcase I'm attaching shows that Cthreads |
| used to sample the inputs at the beginnig and therefor it took 2 |
| cycles to see the results back in sc_main. Hope you could take the |
| action to include it in the regression systemc, since I don't know |
| what system you guys are using. |
| |
| Thanks, |
| Rocco |
| */ |
| |
| #include "systemc.h" |
| |
| SC_MODULE(adder_reg) { |
| sc_in<sc_int<8> > a; |
| sc_in<sc_int<8> > b; |
| sc_out<sc_int<9> > c; |
| //sc_in<bool> clk; |
| sc_in_clk clk; |
| |
| void add() { |
| // c.write(a.read() + b.read()); // *** THIS WON'T COMPILE *** |
| c = a.read() + b.read(); // Must use read() method |
| } |
| |
| SC_CTOR(adder_reg) { |
| SC_CTHREAD(add, clk.pos()); |
| } |
| }; |
| |
| int sc_main(int argc, char *argv[]) |
| { |
| sc_signal< sc_int<8> > a; |
| sc_signal< sc_int<8> > b; |
| sc_signal< sc_int<9> > c; |
| sc_clock clk("CLK", 10, SC_NS, 0.5, 0.0, SC_NS); |
| adder_reg adder_reg("adder"); |
| adder_reg(a, b, c, clk); |
| a = 3; |
| b = 6; |
| cout << c.read().to_int() << endl; |
| sc_start(10, SC_NS); |
| cout << c.read().to_int() << endl; |
| sc_start(10, SC_NS); |
| |
| // CynAppsTwo clocks to get the answer. |
| // Rocco: No with SC_METHOD it take 1 cycle |
| cout << c.read().to_int() << endl; |
| return 0; |
| } |