riscv/extension.h

   1 #ifndef _RISCV_COPROCESSOR_H
   2 #define _RISCV_COPROCESSOR_H
   3
   4 #include "processor.h"
   5 #include <map>
   6 #include <string>
   7 #include <vector>
   8 #include <functional>
   9
  10 class extension_t
  11 {
  12  public:
  13   virtual std::vector<insn_desc_t> get_instructions() = 0;
  14   virtual const char* name() = 0;
  15   virtual void reset() {};
  16   virtual ~extension_t();
  17
  18   void set_processor(processor_t* _p) { p = _p; }
  19  protected:
  20   processor_t* p;
  21
  22   void illegal_instruction();
  23   void raise_interrupt();
  24   void clear_interrupt();
  25 };
  26
  27 std::map<std::string, std::function<extension_t*()>>& extensions();
  28
  29 #define REGISTER_EXTENSION(name, constructor) \
  30   class register_##name { \
  31     public: register_##name() { extensions()[#name] = constructor; } \
  32   }; static register_##name dummy_##name;
  33
  34 #endif