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rename TT funcs to TT_xxx()

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Bruno Raoult
2024-06-12 07:50:19 +02:00
parent ec2d2291d4
commit 8be03c6230
5 changed files with 171 additions and 21 deletions
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38
src/hash.h
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@@ -14,7 +14,7 @@
#ifndef HASH_H
#define HASH_H
#include <assert.h>
#include <bug.h>
#include "chessdefs.h"
@@ -24,6 +24,8 @@
#define HASH_SIZE_MIN 4
#define HASH_SIZE_MAX 32768 /* 32Gb */
#define TT_MISS NULL
typedef u64 hkey_t; /* cannot use typedef for key_t */
/**
@@ -46,8 +48,18 @@ typedef struct {
};
} hentry_t;
/* hentry perft data:
* 0-47: perft value
* 48-63: depth
*/
#define HASH_PERFT_MASK U64(0xffffffffffff)
#define HASH_PERFT(depth, val) ((((u64) depth) << 48) | ((val) & HASH_PERFT_MASK))
#define HASH_PERFT_VAL(data) ((data) & HASH_PERFT_MASK)
#define HASH_PERFT_DEPTH(data) ((u16)((data) >> 48))
typedef struct {
hentry_t buckets[NBUCKETS];
hentry_t entry[NBUCKETS];
} bucket_t;
typedef struct {
@@ -97,8 +109,24 @@ bool zobrist_verify(pos_t *pos);
#define zobrist_verify(p) true
#endif
int hash_create(int Mb);
void hash_clear(void);
void hash_delete(void);
/**
* tt_prefetch() - prefetch hash table entry
* @hash: u64 key
*
* Prefetch memory for @key.
*/
static inline void tt_prefetch(hkey_t key)
{
bug_on(!hash_tt.keys);
__builtin_prefetch(hash_tt.keys + (key & hash_tt.mask));
}
int tt_create(int Mb);
void tt_clear(void);
void tt_delete(void);
hentry_t *tt_probe(hkey_t key);
hentry_t *tt_probe_perft(const hkey_t key, const u16 depth);
hentry_t *tt_store_perft(const hkey_t key, const u16 depth, const u64 nodes);
#endif /* HASH_H */