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r65emu/CPU.h

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