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Split custom bundled signals and connect to individual ports


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Hi,

I have a custom class that bundles a few primitive signals:

class Bundled {
    bool block0_en;
    bool block1_en;
    sc_int<3> block0_data_in;
    sc_int<4> block1_data_in;
    //constructor
    //operator==
    //operator=
    //operator<<
    //sc_trace
};
class Block0; // SC_MODULE
class Block1; // SC_MODULE
SC_MODULE(Top) {
    sc_in<Bundled> bundled_in;
    Block0 block0;
    Block1 block1;
    SC_CTOR(Top)
      : bundled_in("bundled_in")
    {
      block0.en(bundled_in.block0_en); // can't do this because block0_en is not a port!
      ...
    }
 };

How do I split this into the individual signals and connect to submodule ports?

Is there a convenient/standard way to accomplish this without reading "bundled_in" in an SC_CTHREAD/SC_METHOD, and then writing individual members to sc_signals?

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You'll have to create internal (i.e., private) signals for each member of the bundled class, which you need to connect to sub-blocks. Then, you have to register a SC_METHOD or SC_THREAD, which is sensitive to changes of the bundled input. The method/thread can then assign the correct new values to the internal signals based on the changed bundled input.

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