Chapter 10 -- SystemC From Gound 读书心得

 1. Design Hierarchy

 

2. How to creat hierarchy

 

1) Direct/indirect Top-Level Implementation

//=================direct===================//FILE: main.cpp#include <systemc>#include "Car.h"int sc_main(int argc, char* argv[]) { Car car_i("car_i"); sc_start(); return 0;}//=================indirect===================//FILE: main.cpp#include <systemc>#include "Car.h"int sc_main(int argc, char* argv[]) { Car* car_iptr; // pointer to Car car_iptr = new Car("car_i"); // create Car sc_start(); delete car_iptr; return 0;}

 

2) direct submodule

//FILE:Car.h#include "Body.h"#include "Engine.h"SC_MODULE(Car) { Body body_i; Engine eng_i; Car(sc_module_name nm);};//FILE:Car.cpp#include <systemc>#include "Car.h"// ConstructorSC_HAS_PROCESS(Car);Car::Car(sc_module_name nm): sc_module(nm), body_i("body_i"), eng_i("eng_i"){ // other initialization}

 

3) indirect submodule  -- For IP deliver

//FILE:Engine.hclass FuelMix;class Exhaust;class Cylinder;SC_MODULE(Engine) { FuelMix* fuelmix_iptr; Exhaust* exhaust_iptr; Cylinder* cyl1_iptr; Cylinder* cyl2_iptr; Engine(sc_module_name nm); // Constructor};//FILE: Engine.cpp#include <systemc>#include "FuelMix.h"#include "Exhaust.h"#include "Cylinder.h"// ConstructorSC_HAS_PROCESS(Engine);Engine::Engine(sc_module_name nm): sc_module(nm){ fuelmix_iptr = new FuelMix("fuelmix_i"); exhaust_iptr = new Exhaust("exhaust_i"); cyl1_iptr = new Cylinder("cyl1_i"); cyl2_iptr = new Cylinder("cyl2_i"); // other initialization}

注意上例中 Engine.h 没有包括 #include "FuelMix.h", etc..., 而是移到了Engine.cpp中。这就是最大的好处，你只需要提供Engine.h 和 Engine.o 或者 Engine.a就行了，而且 .o, .a都可以方便的更新。