45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
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#ifndef __CPU_EA_LIST_HH__
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#define __CPU_EA_LIST_HH__
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#include <list>
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#include <utility>
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#include "arch/alpha/isa_traits.hh"
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#include "cpu/inst_seq.hh"
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/**
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* Simple class to hold onto a list of pairs, each pair having a memory
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* instruction's sequence number and effective addr. This list can be used
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* for memory disambiguation. However, if I ever want to forward results, I
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* may have to use a list that holds DynInstPtrs. Hence this may change in
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* the future.
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*/
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class EAList {
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private:
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typedef std::pair<InstSeqNum, Addr> instEA;
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typedef std::list<instEA>::iterator eaListIt;
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typedef std::list<instEA>::const_iterator constEAListIt;
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std::list<instEA> eaList;
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public:
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EAList() { }
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~EAList() { }
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void addAddr(const InstSeqNum &new_sn, const Addr &new_ea);
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void clearAddr(const InstSeqNum &sn_to_clear, const Addr &ea_to_clear);
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/** Checks if any instructions older than check_sn have a conflicting
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* address with check_ea. Note that this function does not handle the
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* sequence number rolling over.
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*/
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bool checkConflict(const InstSeqNum &check_sn, const Addr &check_ea) const;
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void clear();
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void commit(const InstSeqNum &commit_sn);
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};
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#endif // __CPU_EA_LIST_HH__
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