module.hh

一个mips虚拟机非常好代码,使用C++来编写的,希望大家多学学,

#ifndef module_hh_included
#define module_hh_included

#include "object.hh"
#include "simarg.hh"
#include "serial.hh"


// BasicModule builds some infrastructure shared by the Sulima class and the
// hardware modules (see below.) In particular, it gets a name N and a Tcl
// namespace "sim::T".

class BasicModule
    : public Object
{
private:
    // Module name.
    const char *name_str;
public:
    // Constructors, etc.
    explicit BasicModule(const char *name);
    virtual ~BasicModule();
    // Attribute access.
    const char *name() const
	{ return name_str; }
    // Logging support. See sulima/log.cc
    void log(char c) const;
    void msg(char c) const;
    void log(const char *templ, ...) const;
    void msg(const char *templ, ...) const;
    // Interfaces used to define Tcl objects in the module namespace.
    //void define(const char *nm, bool &var, bool init, bool ro = false);
    void define(const char *nm, int &var,  int  init = 0, bool ro = false);
    //void define(const char *nm, long &var, long init, bool ro = false);
    void define(const char *nm, char *&var,
		const char *init = "", bool ro = false);
    void define(const char *nm, SimArg (*fn)(const SimArgs &));
    void define(const char *nm,
		Object *obj, SimArg (Object::*fn)(const SimArgs &));
};


// Module adds serialization support to BasicModule and implements
// the actual Tcl interfaces install_module and reset_all.

class Module
    : public virtual Serializable, public BasicModule
{
public:
    // Constructors, etc.
    explicit Module(const char *n)
	: BasicModule(n) { }
    explicit Module(const SimArgs &args);
    explicit Module(Checkpoint &cp);
    // Serialization support.
    void checkpoint(Checkpoint &cp, bool parent = false) const;
    // Simulator interfaces.
    virtual void reset(bool warm) = 0;
    // Tcl interfaces.
    static SimArg install_module(const SimArgs &args);
    static SimArg reset_all(const SimArgs &args);
};


// Search the object list for a module with the given name.
Module *find_module(const char *name);


#endif // module_hh_included