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Move prefetch() out of TT

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This code is platform specific and has nothing to
do with TT class, so move to misc.cpp

This patch is a prerequisite to use extend prefetch use
also to other hash tables apart from Transposition Table.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-06-19 11:10:54 +01:00
parent 221f41c2df
commit 47ee6d9fa4
5 changed files with 40 additions and 43 deletions
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14
src/tt.h
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@@ -108,15 +108,13 @@ public:
void clear();
void store(const Key posKey, Value v, ValueType type, Depth d, Move m, Value statV, Value kingD);
TTEntry* retrieve(const Key posKey) const;
void prefetch(const Key posKey) const;
void new_search();
void insert_pv(const Position& pos, Move pv[]);
void extract_pv(const Position& pos, Move pv[], const int PLY_MAX);
int full() const;
TTEntry* first_entry(const Key posKey) const;
private:
inline TTEntry* first_entry(const Key posKey) const;
// Be sure 'writes' is at least one cache line away
// from read only variables.
unsigned char pad_before[64 - sizeof(unsigned)];
@@ -130,4 +128,14 @@ private:
extern TranspositionTable TT;
/// TranspositionTable::first_entry returns a pointer to the first
/// entry of a cluster given a position. The low 32 bits of the key
/// are used to get the index in the table.
inline TTEntry* TranspositionTable::first_entry(const Key posKey) const {
return entries[uint32_t(posKey) & (size - 1)].data;
}
#endif // !defined(TT_H_INCLUDED)