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#ifndef __CPU_BETA_CPU_RAS_HH__
#define __CPU_BETA_CPU_RAS_HH__
// For Addr type.
#include "arch/alpha/isa_traits.hh"
class ReturnAddrStack
{
public:
ReturnAddrStack(unsigned numEntries);
Addr top()
{ return addrStack[tos]; }
unsigned topIdx()
{ return tos; }
void push(const Addr &return_addr);
void pop();
void restore(unsigned top_entry_idx, const Addr &restored_target);
private:
inline void incrTos()
{ if (++tos == numEntries) tos = 0; }
inline void decrTos()
{ tos = (tos == 0 ? numEntries - 1 : tos - 1); }
Addr *addrStack;
unsigned numEntries;
unsigned usedEntries;
unsigned tos;
};
#endif // __CPU_BETA_CPU_RAS_HH__
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