void coldBootCPU();
void executeInsn();

struct cpustruct
{

  int addrPOR;
  int addrBRK;
  int regSP;
  int regPC;
  int regA;
  int regB;
  int regX;
  int regY;
  int regR;
  int regI;
  int regD;

  unsigned char flagC;
  unsigned char flagZ;
  unsigned char flagID;
  unsigned char flagD;
  unsigned char flagBRK;
  unsigned char flagO;
  unsigned char flagN;
  unsigned char flagE;
  unsigned char flagM;
  unsigned char flagX;

  int mmuRBB;
  int mmuRBA;
  int mmuRBW;

  unsigned char mmuEnRB;
  unsigned char mmuEnRBW;
  
  int byte0; // = 2;
  int byte1; // = 1;

  int cycles;

  int waiTimeout;
  int rbTimeout;
  int rbCache;

  int breakpoint_count;
  int ticks;
  int brk;

  int breakpoints[32];

  int cycles_per_tick;
  int mmu_type;
  int no_io_penality;

  unsigned char interrupt_waiting[256];
  unsigned char interrupt_type[256];
};

struct cpustruct cpu;
extern int nospbug;