mirror of https://github.com/ctm/syn68k.git
29 lines
837 B
C
29 lines
837 B
C
#ifndef _hash_h_
|
|
#define _hash_h_
|
|
|
|
#include "block.h"
|
|
|
|
#define LOG_NUM_BUCKETS 12
|
|
#define NUM_HASH_BUCKETS (1UL << LOG_NUM_BUCKETS)
|
|
|
|
/* This hash function assumes the low bit conveys no information (== 0). */
|
|
#define BLOCK_HASH(x) ((unsigned)((((x) ^ ((x) >> LOG_NUM_BUCKETS)) >> 1) \
|
|
% NUM_HASH_BUCKETS))
|
|
|
|
extern Block *block_hash_table[NUM_HASH_BUCKETS];
|
|
|
|
extern void hash_init (void);
|
|
extern void hash_destroy (void);
|
|
extern Block *hash_lookup (uint32 addr);
|
|
/* defined in `syn68k_public.h'
|
|
extern const uint16 *hash_lookup_code_and_create_if_needed (uint32 addr); */
|
|
extern const uint16 *hash_lookup_code_and_create_if_needed (uint32 addr);
|
|
extern void hash_insert (Block *b);
|
|
extern void hash_remove (Block *b);
|
|
#ifdef DEBUG
|
|
extern BOOL hash_verify (void);
|
|
extern void hash_stats (void);
|
|
#endif
|
|
|
|
#endif /* Not _hash_h_ */
|