Add forgotten dfpn files

[bonanza.git] / dfpn.h

diff --git a/dfpn.h b/dfpn.h
new file mode 100644 (file)
index 0000000..f3695ac
--- /dev/null
+++ b/dfpn.h
@@ -0,0 +1,106 @@
+#if defined(DFPN)
+#ifndef DFPN_H
+#define DFPN_H
+
+/* #define DFPN_DBG */
+
+#define DFPN_AGE_MASK           0xffU
+#define INF                     0x7fffffU
+#define INF_1                   0x7ffffeU
+#define MAX_NMOVE               256
+
+#define DFPN_ERRNO_MAXNODE      -101
+#define DFPN_ERRNO_MAXPLY       -102
+#define DFPN_ERRNO_SUMPHI       -103
+#define DFPN_ERRNO_DELTA2P      -104
+#define DFPN_ERRNO_SIGNAL       -105
+
+/* #define DFPN_HASH_MASK     0x00fffffU */ /*   24MByte */
+/* #define DFPN_HASH_MASK     0x01fffffU */ /*   48MByte */
+/* #define DFPN_HASH_MASK     0x03fffffU */ /*   96MByte */
+/* #define DFPN_HASH_MASK     0x07fffffU */ /*  192MByte */
+/* #define DFPN_HASH_MASK     0x0ffffffU */ /*  384MByte */
+/* #define DFPN_HASH_MASK     0x1ffffffU */ /*  768MByte */
+/* #define DFPN_HASH_MASK     0x3ffffffU */ /* 1536MByte */
+#define DFPN_NODES_MASK    UINT64_C(0x1fffffffffff)
+#define DFPN_NUM_REHASH    32
+
+
+#if defined(DFPN_DBG)
+extern int dbg_flag;
+#  define DOut(ply,fmt,...) if ( dbg_flag && ply <= 64 ) out( "%-*d" fmt "\n", 2*ply, ply, __VA_ARGS__ )
+#else
+#  define DOut( ... )
+#endif
+
+/*#define DFPNSignKey(word1, word2, word3) word1 = ( word1 ^ word2 ^ word3 )*/
+#define DFPNSignKey(word1, word2, word3)
+
+typedef struct { uint64_t word1, word2, word3; } dfpn_hash_entry_t;
+
+typedef struct {
+  uint64_t hash_key;
+  uint64_t nodes;
+  uint64_t expanded;
+  unsigned int hand_b;
+  unsigned int min_hand_b;
+  unsigned int move;
+  unsigned int phi;
+  unsigned int delta;
+  unsigned int priority;
+  int is_delta_loop;
+  int is_phi_loop;
+  int is_loop;
+  int is_weak;
+} child_t;
+
+
+typedef struct {
+  child_t * restrict children;
+  uint64_t hash_key;
+  uint64_t nodes;
+  uint64_t new_expansion;
+  unsigned int min_hand_b;
+  unsigned int hand_b;
+  unsigned int phi;
+  unsigned int delta;
+  unsigned int sum_phi;
+  unsigned int min_delta;
+  int is_delta_loop;
+  int is_phi_loop;
+  int nmove, turn, icurr_c;
+} node_t;
+
+
+typedef struct {
+  uint64_t node_limit;
+  int turn_or;
+  int root_ply;
+  unsigned int sum_phi_max;
+  child_t child_tbl[ MAX_NMOVE * PLY_MAX ];
+  node_t anode[ PLY_MAX ];
+} dfpn_tree_t;
+
+
+enum { weak_chuai = 1, weak_drop  = 100 };
+
+
+void CONV dfpn_hash_probe( const dfpn_tree_t * restrict pdfpn_tree,
+                          child_t * restrict pchild, int ply, int turn );
+void CONV dfpn_hash_store( const tree_t * restrict ptree,
+                          dfpn_tree_t * restrict pdfpn_tree,
+                          int ply );
+int CONV dfpn_detect_rep( const dfpn_tree_t * restrict pdfpn_tree,
+                         uint64_t hash_key, unsigned int hand_b,
+                         int ply, int * restrict ip );
+unsigned int CONV dfpn_max_hand_b( unsigned int hand_b, unsigned hand_w );
+unsigned int CONV dfpn_max_hand_w( unsigned int hand_b, unsigned hand_w );
+float CONV dfpn_hash_sat( void );
+
+extern dfpn_hash_entry_t * restrict dfpn_hash_tbl;
+extern unsigned int dfpn_hash_mask;
+extern unsigned int dfpn_hash_age;
+extern const unsigned int hand_tbl[16];
+
+#endif /* DFPN_H */
+#endif /* DFPN */