r65emu/CPU.h

30 lines
588 B
C++

#ifndef __CPU_H__
#define __CPU_H__
#undef PC
class Stream;
#define O(o, e) case o: e(); break;
#define D(e) default: e(); break;
class CPU: public Checkpointable {
public:
virtual void run(unsigned instructions) =0;
virtual void reset() =0;
virtual void raise(uint8_t level) =0;
virtual char *status(char *buf, size_t n, bool hdr) =0;
virtual void checkpoint(Stream &s) = 0;
virtual void restore(Stream &s) = 0;
inline bool halted() { return _halted; }
protected:
CPU(Memory &mem): _mem(mem), _halted(false) {}
Memory &_mem;
Memory::address PC;
bool _halted;
};
#endif