From 4dddac9e257433a8e2f5f763d91470a7e05ff680 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano.tronto@gmail.com>
Date: Thu, 23 Dec 2021 00:31:12 +0100
Subject: Added the possibility to compress tables to 2 bits per entry. This is
 done similarly to nxopt: one base value is selected and entries are memorized
 based on that base value. Values higher than base+3 are returned as base+3
 (still a valid estimate) and values lower or equal to base require a lookup
 on a "fallback" table, which must give a valid estimate for the larger one
 (e.g. nxopt31 or khuge can fallback to drud_sym16). I have also added some
 info to the pruning table files: base value and distribution. Unfortunately
 this means that everyone who has used nissy 2.0beta has to re-generate the
 tables.

---
 src/cubetypes.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/cubetypes.h')

diff --git a/src/cubetypes.h b/src/cubetypes.h
index d1d36b2..7563abb 100644
--- a/src/cubetypes.h
+++ b/src/cubetypes.h
@@ -265,6 +265,11 @@ prunedata
 	uint64_t                  n;
 	Coordinate *              coord;
 	Moveset *                 moveset;
+	bool                      compact;
+	int                       base;
+	uint64_t                  count[16];
+	PruneData *               fallback;
+	uint64_t                  fbmod;
 };
 
 struct
-- 
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