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Reduce types.h

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root 2015-01-10 12:05:26 +00:00
parent c0fb31cac3
commit 460e64667a
3 changed files with 1 additions and 78 deletions
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6
src/bitboard.cpp
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@ -271,9 +271,6 @@ namespace {
occupancy[size] = b;
reference[size] = sliding_attack(deltas, s, b);
if (HasPext)
attacks[s][_pext_u64(b, masks[s])] = reference[size];
size++;
b = (b - masks[s]) & masks[s];
} while (b);
@ -283,9 +280,6 @@ namespace {
if (s < SQ_H8)
attacks[s + 1] = attacks[s] + size;
if (HasPext)
continue;
// Find a magic for square 's' picking up an (almost) random number
// until we find the one that passes the verification test.
do {

6
src/bitboard.h
View file

@ -237,12 +237,6 @@ FORCE_INLINE unsigned magic_index(Square s, Bitboard occupied) {
Bitboard* const Magics = Pt == ROOK ? RookMagics : BishopMagics;
unsigned* const Shifts = Pt == ROOK ? RookShifts : BishopShifts;
if (HasPext)
return unsigned(_pext_u64(occupied, Masks[s]));
if (Is64Bit)
return unsigned(((occupied & Masks[s]) * Magics[s]) >> Shifts[s]);
unsigned lo = unsigned(occupied) & unsigned(Masks[s]);
unsigned hi = unsigned(occupied >> 32) & unsigned(Masks[s] >> 32);
return (lo * unsigned(Magics[s]) ^ hi * unsigned(Magics[s] >> 32)) >> Shifts[s];

67
src/types.h
View file

@ -1,69 +1,16 @@
/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Stockfish is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TYPES_H_INCLUDED
#define TYPES_H_INCLUDED
/// For Linux and OSX configuration is done automatically using Makefile. To get
/// started type 'make help'.
///
/// For Windows, part of the configuration is detected automatically, but some
/// switches need to be set manually:
///
/// -DNDEBUG | Disable debugging mode. Always use this.
///
/// -DNO_PREFETCH | Disable use of prefetch asm-instruction. A must if you want
/// | the executable to run on some very old machines.
///
/// -DUSE_POPCNT | Add runtime support for use of popcnt asm-instruction. Works
/// | only in 64-bit mode. For compiling requires hardware with
/// | popcnt support.
#include <cassert>
#include <cctype>
#include <climits>
#include <cstdlib>
#include <inttypes.h>
const bool HasPopCnt = true;
#define unlikely(x) (x) // For code annotation purposes
#if defined(_WIN64) && !defined(IS_64BIT)
# include <intrin.h> // MSVC popcnt and bsfq instrinsics
# define IS_64BIT
# define USE_BSFQ
#endif
#if defined(USE_POPCNT) && defined(_MSC_VER) && defined(__INTEL_COMPILER)
# include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
#endif
#if defined(USE_PEXT)
# include <immintrin.h> // Header for _pext_u64() intrinsic
#else
# define _pext_u64(b, m) (0)
#endif
# if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
# include <xmmintrin.h> // Intel and Microsoft header for _mm_prefetch()
# endif
#define CACHE_LINE_SIZE 64
#ifdef _MSC_VER
@ -74,18 +21,6 @@
# define FORCE_INLINE inline
#endif
#ifdef USE_POPCNT
const bool HasPopCnt = true;
#else
const bool HasPopCnt = false;
#endif
#ifdef USE_PEXT
const bool HasPext = true;
#else
const bool HasPext = false;
#endif
#ifdef IS_64BIT
const bool Is64Bit = true;
#else