sulima.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 sulima_hh_included
#define sulima_hh_included

#include <stdarg.h>
#include "module.hh"
#include "clock.hh"
#include "cpu.hh"
#include "ioqueue.hh"


// The main Sulima module type.

class Sulima
    : public BasicModule, public IOListener
{
private:
    // The logging subsystem.
    void create_logging_subsystem();
    void destroy_logging_subsystem();

    // The I/O subsystem
    void create_io_subsystem();
    void destroy_io_subsystem();

    // The console subsystem
    void create_console_subsystem();
    void destroy_console_subsystem();

public:
    // Some shameless advertising.
    static const char *const banner;
    static const char *const copyright;

    // Constructors, etc,
    Sulima();
    ~Sulima();

    void enable_console(CPU *cpu);
    void io_poll();
};

// There's one instance of the above in the program,
// and it's created after sulima_tcl has been initialized.

extern Sulima *sulima;


// Interface implemented by console devices

class Console
{
public:
    virtual void input(int c) = 0;
};

// Console event handler class

class ConsoleEvent
    : public Event
{
public:
    ConsoleEvent(ClockValue when, ClockValue interval) : Event(when, interval) {}
    void invoke();
};


// Function prototypes.

// sulima/echo.cc
size_t echo(char *buf, size_t n, const char *tmpl, ...);
size_t vecho(char *buf, size_t n, const char *tmpl, va_list ap);

// sulima/copy.cc
char *copy(const char *s);
char *copy(const char *s0, const char *s1, ...);


#endif // sulima_hh_included