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ac72cf115e
Update syzygy probing code from texel to support probing of 7-men tablebases.
140 lines
2.6 KiB
C++
140 lines
2.6 KiB
C++
/*
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Copyright (c) 2011-2013 Ronald de Man
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*/
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#ifndef RTB_CORE_HPP_
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#define RTB_CORE_HPP_
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#ifndef _WIN32
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#define SEP_CHAR ':'
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#define FD int
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#define FD_ERR -1
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#else
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#include <windows.h>
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#define SEP_CHAR ';'
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#define FD HANDLE
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#define FD_ERR INVALID_HANDLE_VALUE
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#endif
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#include <stdint.h>
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#include <atomic>
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#define WDLSUFFIX ".rtbw"
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#define DTZSUFFIX ".rtbz"
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#define TBPIECES 7
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#define WDL_MAGIC 0x5d23e871
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#define DTZ_MAGIC 0xa50c66d7
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#define TBHASHBITS 11
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struct TBHashEntry;
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using base_t = uint64_t;
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struct PairsData {
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char *indextable;
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uint16_t *sizetable;
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uint8_t *data;
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uint16_t *offset;
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uint8_t *symlen;
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uint8_t *sympat;
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int blocksize;
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int idxbits;
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int min_len;
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base_t base[1]; // C++ complains about base[]...
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};
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struct TBEntry {
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uint8_t *data;
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uint64_t key;
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uint64_t mapping;
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std::atomic<uint8_t> ready;
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uint8_t num;
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uint8_t symmetric;
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uint8_t has_pawns;
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} __attribute__((__may_alias__));
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struct TBEntry_piece {
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uint8_t *data;
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uint64_t key;
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uint64_t mapping;
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std::atomic<uint8_t> ready;
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uint8_t num;
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uint8_t symmetric;
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uint8_t has_pawns;
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uint8_t enc_type;
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struct PairsData *precomp[2];
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uint64_t factor[2][TBPIECES];
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uint8_t pieces[2][TBPIECES];
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uint8_t norm[2][TBPIECES];
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};
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struct TBEntry_pawn {
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uint8_t *data;
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uint64_t key;
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uint64_t mapping;
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std::atomic<uint8_t> ready;
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uint8_t num;
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uint8_t symmetric;
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uint8_t has_pawns;
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uint8_t pawns[2];
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struct {
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struct PairsData *precomp[2];
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uint64_t factor[2][TBPIECES];
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uint8_t pieces[2][TBPIECES];
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uint8_t norm[2][TBPIECES];
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} file[4];
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};
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struct DTZEntry_piece {
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char *data;
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uint64_t key;
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uint64_t mapping;
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std::atomic<uint8_t> ready;
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uint8_t num;
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uint8_t symmetric;
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uint8_t has_pawns;
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uint8_t enc_type;
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struct PairsData *precomp;
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uint64_t factor[TBPIECES];
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uint8_t pieces[TBPIECES];
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uint8_t norm[TBPIECES];
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uint8_t flags; // accurate, mapped, side
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uint16_t map_idx[4];
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uint8_t *map;
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};
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struct DTZEntry_pawn {
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char *data;
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uint64_t key;
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uint64_t mapping;
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std::atomic<uint8_t> ready;
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uint8_t num;
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uint8_t symmetric;
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uint8_t has_pawns;
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uint8_t pawns[2];
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struct {
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struct PairsData *precomp;
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uint64_t factor[TBPIECES];
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uint8_t pieces[TBPIECES];
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uint8_t norm[TBPIECES];
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} file[4];
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uint8_t flags[4];
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uint16_t map_idx[4][4];
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uint8_t *map;
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};
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struct TBHashEntry {
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uint64_t key;
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struct TBEntry *ptr;
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};
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struct DTZTableEntry {
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uint64_t key1;
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uint64_t key2;
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std::atomic<TBEntry*> entry;
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};
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#endif
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