Reformat types.h
Retire obsolete code and reshuffle stuff. No functional change. Signed-off-by: Marco Costalba <mcostalba@gmail.com>sf_2.3.1_base
Marco Costalba
parent
808a312e1c
commit
f4dadee5e2
11
Readme.txt
11
Readme.txt
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@ -56,15 +56,8 @@ Power PC, hardware POPCNT instruction and other platforms.
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In general is recommended to run 'make help' to see a list of make targets
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with corresponding descriptions. When not using Makefile to compile, for
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instance with Microsoft MSVC, you need to manualy set/unset in the compiler
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command line the following flags:
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-DNDEBUG --- Disable debug mode
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-DBIGENDIAN --- big-endian byte order
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-DUSE_POPCNT --- Use popcnt SSE 4.2 asm-instruction
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-DIS_64BIT --- 64bit operating system (auto detected)
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-DUSE_PREFETCH --- Use prefetch x86 asm-instruction (auto detected)
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-DUSE_BSFQ --- Use bsfq x86_64 asm-instruction (auto detected)
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instance with Microsoft MSVC, you need to manually set/unset in the compiler
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command line some swicthes, see file types.h for a quick reference.
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5. Terms of use
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@ -191,11 +191,11 @@ void prefetch(char*) {}
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void prefetch(char* addr) {
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#if defined(__INTEL_COMPILER) || defined(__ICL)
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# if defined(__INTEL_COMPILER) || defined(__ICL)
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// This hack prevents prefetches to be optimized away by
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// Intel compiler. Both MSVC and gcc seems not affected.
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__asm__ ("");
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#endif
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# endif
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_mm_prefetch(addr, _MM_HINT_T2);
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_mm_prefetch(addr+64, _MM_HINT_T2); // 64 bytes ahead
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@ -397,7 +397,7 @@ namespace {
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void id_loop(Position& pos) {
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Stack ss[PLY_MAX_PLUS_2];
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Stack ss[MAX_PLY_PLUS_2];
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int depth, prevBestMoveChanges;
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Value bestValue, alpha, beta, delta;
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bool bestMoveNeverChanged = true;
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@ -419,7 +419,7 @@ namespace {
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}
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// Iterative deepening loop until requested to stop or target depth reached
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while (!Signals.stop && ++depth <= PLY_MAX && (!Limits.maxDepth || depth <= Limits.maxDepth))
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while (!Signals.stop && ++depth <= MAX_PLY && (!Limits.maxDepth || depth <= Limits.maxDepth))
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{
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// Save last iteration's scores before first PV line is searched and all
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// the move scores but the (new) PV are set to -VALUE_INFINITE.
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@ -634,7 +634,7 @@ namespace {
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// Step 2. Check for aborted search and immediate draw
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if (( Signals.stop
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|| pos.is_draw<false>()
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|| ss->ply > PLY_MAX) && !RootNode)
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|| ss->ply > MAX_PLY) && !RootNode)
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return VALUE_DRAW;
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// Step 3. Mate distance pruning. Even if we mate at the next move our score
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@ -716,7 +716,7 @@ namespace {
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&& !inCheck
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&& refinedValue + razor_margin(depth) < beta
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&& ttMove == MOVE_NONE
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&& abs(beta) < VALUE_MATE_IN_PLY_MAX
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&& abs(beta) < VALUE_MATE_IN_MAX_PLY
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&& !pos.has_pawn_on_7th(pos.side_to_move()))
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{
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Value rbeta = beta - razor_margin(depth);
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@ -735,7 +735,7 @@ namespace {
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&& depth < RazorDepth
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&& !inCheck
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&& refinedValue - futility_margin(depth, 0) >= beta
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&& abs(beta) < VALUE_MATE_IN_PLY_MAX
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&& abs(beta) < VALUE_MATE_IN_MAX_PLY
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&& pos.non_pawn_material(pos.side_to_move()))
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return refinedValue - futility_margin(depth, 0);
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@ -745,7 +745,7 @@ namespace {
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&& depth > ONE_PLY
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&& !inCheck
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&& refinedValue >= beta
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&& abs(beta) < VALUE_MATE_IN_PLY_MAX
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&& abs(beta) < VALUE_MATE_IN_MAX_PLY
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&& pos.non_pawn_material(pos.side_to_move()))
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{
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ss->currentMove = MOVE_NULL;
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@ -767,7 +767,7 @@ namespace {
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if (nullValue >= beta)
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{
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// Do not return unproven mate scores
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if (nullValue >= VALUE_MATE_IN_PLY_MAX)
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if (nullValue >= VALUE_MATE_IN_MAX_PLY)
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nullValue = beta;
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if (depth < 6 * ONE_PLY)
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@ -808,7 +808,7 @@ namespace {
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&& !inCheck
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&& !ss->skipNullMove
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&& excludedMove == MOVE_NONE
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&& abs(beta) < VALUE_MATE_IN_PLY_MAX)
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&& abs(beta) < VALUE_MATE_IN_MAX_PLY)
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{
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Value rbeta = beta + 200;
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Depth rdepth = depth - ONE_PLY - 3 * ONE_PLY;
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@ -954,7 +954,7 @@ split_point_start: // At split points actual search starts from here
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&& !dangerous
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&& move != ttMove
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&& !is_castle(move)
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&& (bestValue > VALUE_MATED_IN_PLY_MAX || bestValue == -VALUE_INFINITE))
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&& (bestValue > VALUE_MATED_IN_MAX_PLY || bestValue == -VALUE_INFINITE))
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{
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// Move count based pruning
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if ( moveCount >= futility_move_count(depth)
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@ -1208,7 +1208,7 @@ split_point_start: // At split points actual search starts from here
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ss->ply = (ss-1)->ply + 1;
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// Check for an instant draw or maximum ply reached
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if (pos.is_draw<true>() || ss->ply > PLY_MAX)
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if (pos.is_draw<true>() || ss->ply > MAX_PLY)
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return VALUE_DRAW;
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// Decide whether or not to include checks, this fixes also the type of
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@ -1309,7 +1309,7 @@ split_point_start: // At split points actual search starts from here
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// Detect non-capture evasions that are candidate to be pruned
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evasionPrunable = !PvNode
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&& inCheck
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&& bestValue > VALUE_MATED_IN_PLY_MAX
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&& bestValue > VALUE_MATED_IN_MAX_PLY
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&& !pos.is_capture(move)
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&& !pos.can_castle(pos.side_to_move());
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@ -1495,10 +1495,10 @@ split_point_start: // At split points actual search starts from here
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Value value_to_tt(Value v, int ply) {
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if (v >= VALUE_MATE_IN_PLY_MAX)
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if (v >= VALUE_MATE_IN_MAX_PLY)
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return v + ply;
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if (v <= VALUE_MATED_IN_PLY_MAX)
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if (v <= VALUE_MATED_IN_MAX_PLY)
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return v - ply;
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return v;
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@ -1511,10 +1511,10 @@ split_point_start: // At split points actual search starts from here
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Value value_from_tt(Value v, int ply) {
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if (v >= VALUE_MATE_IN_PLY_MAX)
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if (v >= VALUE_MATE_IN_MAX_PLY)
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return v - ply;
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if (v <= VALUE_MATED_IN_PLY_MAX)
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if (v <= VALUE_MATED_IN_MAX_PLY)
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return v + ply;
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return v;
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@ -1569,8 +1569,8 @@ split_point_start: // At split points actual search starts from here
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Value v = value_from_tt(tte->value(), ply);
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return ( tte->depth() >= depth
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|| v >= std::max(VALUE_MATE_IN_PLY_MAX, beta)
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|| v < std::min(VALUE_MATED_IN_PLY_MAX, beta))
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|| v >= std::max(VALUE_MATE_IN_MAX_PLY, beta)
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|| v < std::min(VALUE_MATED_IN_MAX_PLY, beta))
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&& ( ((tte->type() & VALUE_TYPE_LOWER) && v >= beta)
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|| ((tte->type() & VALUE_TYPE_UPPER) && v < beta));
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@ -1619,7 +1619,7 @@ split_point_start: // At split points actual search starts from here
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std::stringstream s;
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if (abs(v) < VALUE_MATE_IN_PLY_MAX)
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if (abs(v) < VALUE_MATE_IN_MAX_PLY)
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s << "cp " << v * 100 / int(PawnValueMidgame);
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else
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s << "mate " << (v > 0 ? VALUE_MATE - v + 1 : -VALUE_MATE - v) / 2;
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@ -1696,9 +1696,9 @@ split_point_start: // At split points actual search starts from here
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std::stringstream s;
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if (v >= VALUE_MATE_IN_PLY_MAX)
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if (v >= VALUE_MATE_IN_MAX_PLY)
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s << "#" << (VALUE_MATE - v + 1) / 2;
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else if (v <= VALUE_MATED_IN_PLY_MAX)
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else if (v <= VALUE_MATED_IN_MAX_PLY)
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s << "-#" << (VALUE_MATE + v) / 2;
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else
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s << std::setprecision(2) << std::fixed << std::showpos
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@ -1712,7 +1712,7 @@ split_point_start: // At split points actual search starts from here
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const int64_t K = 1000;
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const int64_t M = 1000000;
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StateInfo state[PLY_MAX_PLUS_2], *st = state;
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StateInfo state[MAX_PLY_PLUS_2], *st = state;
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Move* m = pv;
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string san, padding;
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size_t length;
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@ -1810,7 +1810,7 @@ split_point_start: // At split points actual search starts from here
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void RootMove::extract_pv_from_tt(Position& pos) {
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StateInfo state[PLY_MAX_PLUS_2], *st = state;
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StateInfo state[MAX_PLY_PLUS_2], *st = state;
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TTEntry* tte;
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int ply = 1;
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Move m = pv[0];
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@ -1825,7 +1825,7 @@ split_point_start: // At split points actual search starts from here
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&& tte->move() != MOVE_NONE
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&& pos.is_pseudo_legal(tte->move())
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&& pos.pl_move_is_legal(tte->move(), pos.pinned_pieces())
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&& ply < PLY_MAX
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&& ply < MAX_PLY
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&& (!pos.is_draw<false>() || ply < 2))
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{
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pv.push_back(tte->move());
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@ -1844,7 +1844,7 @@ split_point_start: // At split points actual search starts from here
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void RootMove::insert_pv_in_tt(Position& pos) {
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StateInfo state[PLY_MAX_PLUS_2], *st = state;
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StateInfo state[MAX_PLY_PLUS_2], *st = state;
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TTEntry* tte;
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Key k;
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Value v, m = VALUE_NONE;
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@ -1920,7 +1920,7 @@ void Thread::idle_loop(SplitPoint* sp) {
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assert(!do_terminate);
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// Copy split point position and search stack and call search()
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Stack ss[PLY_MAX_PLUS_2];
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Stack ss[MAX_PLY_PLUS_2];
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SplitPoint* tsp = splitPoint;
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Position pos(*tsp->pos, threadID);
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315
src/types.h
315
src/types.h
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@ -20,15 +20,35 @@
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#if !defined(TYPES_H_INCLUDED)
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#define TYPES_H_INCLUDED
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/// For Linux and OSX configuration is done automatically using Makefile. To get
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/// started type 'make help'.
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///
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/// For Windows, part of the configuration is detected automatically, but some
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/// switches need to be set manually:
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///
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/// -DNDEBUG | Disable debugging mode. Use always.
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///
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/// -DNO_PREFETCH | Disable use of prefetch asm-instruction. A must if you want
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/// | the executable to run on some very old machines.
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///
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/// -DUSE_POPCNT | Add runtime support for use of popcnt asm-instruction. Works
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/// | only in 64-bit mode. For compiling requires hardware with
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/// | popcnt support.
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///
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/// -DOLD_LOCKS | Under Windows are used the fast Slim Reader/Writer (SRW)
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/// | Locks and Condition Variables: these are not supported by
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/// | Windows XP and older, to compile for those platforms you
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/// | should enable OLD_LOCKS.
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#include <climits>
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#include <cstdlib>
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#if defined(_MSC_VER)
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// Disable some silly and noisy warning from MSVC compiler
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#pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
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#pragma warning(disable: 4127) // Conditional expression is constant
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#pragma warning(disable: 4146) // Unary minus operator applied to unsigned type
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#pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
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// MSVC does not support <inttypes.h>
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typedef signed __int8 int8_t;
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@ -41,115 +61,50 @@ typedef signed __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#else
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#include <inttypes.h>
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# include <inttypes.h>
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#endif
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////
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//// Configuration
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////
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//// For Linux and OSX configuration is done automatically using Makefile.
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//// To get started type "make help".
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////
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//// For windows part of the configuration is detected automatically, but
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//// some switches need to be set manually:
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////
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//// -DNDEBUG | Disable debugging mode. Use always.
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////
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//// -DNO_PREFETCH | Disable use of prefetch asm-instruction. A must if you want the
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//// | executable to run on some very old machines.
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////
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//// -DUSE_POPCNT | Add runtime support for use of popcnt asm-instruction.
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//// | Works only in 64-bit mode. For compiling requires hardware
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//// | with popcnt support. Around 4% speed-up.
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////
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//// -DOLD_LOCKS | By default under Windows are used the fast Slim Reader/Writer (SRW)
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//// | Locks and Condition Variables: these are not supported by Windows XP
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//// | and older, to compile for those platforms you should enable OLD_LOCKS.
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// Automatic detection for 64-bit under Windows
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#if defined(_WIN64)
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#define IS_64BIT
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# define IS_64BIT
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# define USE_BSFQ
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#endif
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// Automatic detection for use of bsfq asm-instruction under Windows
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#if defined(_WIN64)
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#define USE_BSFQ
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#endif
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// Intel header for _mm_popcnt_u64() intrinsic
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#if defined(USE_POPCNT) && defined(_MSC_VER) && defined(__INTEL_COMPILER)
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#include <nmmintrin.h>
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# include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
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#endif
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// Cache line alignment specification
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#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
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#define CACHE_LINE_ALIGNMENT __declspec(align(64))
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# define CACHE_LINE_ALIGNMENT __declspec(align(64))
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#else
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#define CACHE_LINE_ALIGNMENT __attribute__ ((aligned(64)))
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# define CACHE_LINE_ALIGNMENT __attribute__ ((aligned(64)))
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#endif
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// Define a __cpuid() function for gcc compilers, for Intel and MSVC
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// is already available as an intrinsic.
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#if defined(_MSC_VER)
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#include <intrin.h>
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#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
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inline void __cpuid(int CPUInfo[4], int InfoType)
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{
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int* eax = CPUInfo + 0;
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int* ebx = CPUInfo + 1;
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int* ecx = CPUInfo + 2;
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int* edx = CPUInfo + 3;
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*eax = InfoType;
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*ecx = 0;
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__asm__("cpuid" : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
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: "0" (*eax), "2" (*ecx));
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}
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#else
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inline void __cpuid(int CPUInfo[4], int)
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{
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CPUInfo[0] = CPUInfo[1] = CPUInfo[2] = CPUInfo[3] = 0;
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}
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#endif
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// Define FORCE_INLINE macro to force inlining overriding compiler choice
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#if defined(_MSC_VER)
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#define FORCE_INLINE __forceinline
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# define FORCE_INLINE __forceinline
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#elif defined(__GNUC__)
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#define FORCE_INLINE inline __attribute__((always_inline))
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# define FORCE_INLINE inline __attribute__((always_inline))
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#else
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#define FORCE_INLINE inline
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# define FORCE_INLINE inline
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#endif
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/// HasPopCnt is a global constant initialized at compile time that is set to
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/// true if CPU on which application runs supports popcnt hardware instruction.
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#if defined(USE_POPCNT)
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const bool HasPopCnt = true;
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#else
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const bool HasPopCnt = false;
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#endif
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/// Is64Bit is a global constant initialized at compile time that is set to
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/// true if CPU on which application runs is a 64 bits.
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#if defined(IS_64BIT)
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const bool Is64Bit = true;
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#else
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const bool Is64Bit = false;
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#endif
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#include <string>
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typedef uint64_t Key;
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typedef uint64_t Bitboard;
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const int MAX_MOVES = 256;
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const int PLY_MAX = 100;
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const int PLY_MAX_PLUS_2 = PLY_MAX + 2;
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const int MAX_MOVES = 256;
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const int MAX_PLY = 100;
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const int MAX_PLY_PLUS_2 = MAX_PLY + 2;
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const Bitboard FileABB = 0x0101010101010101ULL;
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const Bitboard FileBBB = FileABB << 1;
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@ -169,6 +124,7 @@ const Bitboard Rank6BB = Rank1BB << (8 * 5);
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const Bitboard Rank7BB = Rank1BB << (8 * 6);
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const Bitboard Rank8BB = Rank1BB << (8 * 7);
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/// A move needs 16 bits to be stored
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///
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/// bit 0- 5: destination square (from 0 to 63)
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@ -194,6 +150,22 @@ inline bool operator<(const MoveStack& f, const MoveStack& s) {
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return f.score < s.score;
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}
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enum CastleRight {
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CASTLES_NONE = 0,
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WHITE_OO = 1,
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BLACK_OO = 2,
|
||||
WHITE_OOO = 4,
|
||||
BLACK_OOO = 8,
|
||||
ALL_CASTLES = 15
|
||||
};
|
||||
|
||||
enum ScaleFactor {
|
||||
SCALE_FACTOR_DRAW = 0,
|
||||
SCALE_FACTOR_NORMAL = 64,
|
||||
SCALE_FACTOR_MAX = 128,
|
||||
SCALE_FACTOR_NONE = 255
|
||||
};
|
||||
|
||||
enum ValueType {
|
||||
VALUE_TYPE_NONE = 0,
|
||||
VALUE_TYPE_UPPER = 1,
|
||||
|
|
@ -209,8 +181,8 @@ enum Value {
|
|||
VALUE_INFINITE = 30001,
|
||||
VALUE_NONE = 30002,
|
||||
|
||||
VALUE_MATE_IN_PLY_MAX = VALUE_MATE - PLY_MAX,
|
||||
VALUE_MATED_IN_PLY_MAX = -VALUE_MATE + PLY_MAX,
|
||||
VALUE_MATE_IN_MAX_PLY = VALUE_MATE - MAX_PLY,
|
||||
VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + MAX_PLY,
|
||||
|
||||
VALUE_ENSURE_INTEGER_SIZE_P = INT_MAX,
|
||||
VALUE_ENSURE_INTEGER_SIZE_N = INT_MIN
|
||||
|
|
@ -275,47 +247,54 @@ enum Rank {
|
|||
RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8
|
||||
};
|
||||
|
||||
enum ScaleFactor {
|
||||
SCALE_FACTOR_DRAW = 0,
|
||||
SCALE_FACTOR_NORMAL = 64,
|
||||
SCALE_FACTOR_MAX = 128,
|
||||
SCALE_FACTOR_NONE = 255
|
||||
};
|
||||
|
||||
enum CastleRight {
|
||||
CASTLES_NONE = 0,
|
||||
WHITE_OO = 1,
|
||||
BLACK_OO = 2,
|
||||
WHITE_OOO = 4,
|
||||
BLACK_OOO = 8,
|
||||
ALL_CASTLES = 15
|
||||
};
|
||||
|
||||
|
||||
/// Score enum keeps a midgame and an endgame value in a single
|
||||
/// integer (enum), first LSB 16 bits are used to store endgame
|
||||
/// value, while upper bits are used for midgame value. Compiler
|
||||
/// is free to choose the enum type as long as can keep its data,
|
||||
/// so ensure Score to be an integer type.
|
||||
/// Score enum keeps a midgame and an endgame value in a single integer (enum),
|
||||
/// first LSB 16 bits are used to store endgame value, while upper bits are used
|
||||
/// for midgame value. Compiler is free to choose the enum type as long as can
|
||||
/// keep its data, so ensure Score to be an integer type.
|
||||
enum Score {
|
||||
SCORE_ZERO = 0,
|
||||
SCORE_ENSURE_INTEGER_SIZE_P = INT_MAX,
|
||||
SCORE_ENSURE_INTEGER_SIZE_N = INT_MIN
|
||||
SCORE_ZERO = 0,
|
||||
SCORE_ENSURE_INTEGER_SIZE_P = INT_MAX,
|
||||
SCORE_ENSURE_INTEGER_SIZE_N = INT_MIN
|
||||
};
|
||||
|
||||
#define ENABLE_OPERATORS_ON(T) \
|
||||
inline T operator+ (const T d1, const T d2) { return T(int(d1) + int(d2)); } \
|
||||
inline T operator- (const T d1, const T d2) { return T(int(d1) - int(d2)); } \
|
||||
inline T operator* (int i, const T d) { return T(i * int(d)); } \
|
||||
inline T operator* (const T d, int i) { return T(int(d) * i); } \
|
||||
inline T operator/ (const T d, int i) { return T(int(d) / i); } \
|
||||
inline T operator- (const T d) { return T(-int(d)); } \
|
||||
inline T operator++ (T& d, int) {d = T(int(d) + 1); return d; } \
|
||||
inline T operator-- (T& d, int) { d = T(int(d) - 1); return d; } \
|
||||
inline T& operator+= (T& d1, const T d2) { d1 = d1 + d2; return d1; } \
|
||||
inline T& operator-= (T& d1, const T d2) { d1 = d1 - d2; return d1; } \
|
||||
inline T& operator*= (T& d, int i) { d = T(int(d) * i); return d; } \
|
||||
inline T& operator/= (T& d, int i) { d = T(int(d) / i); return d; }
|
||||
inline Score make_score(int mg, int eg) { return Score((mg << 16) + eg); }
|
||||
|
||||
/// Extracting the signed lower and upper 16 bits it not so trivial because
|
||||
/// according to the standard a simple cast to short is implementation defined
|
||||
/// and so is a right shift of a signed integer.
|
||||
inline Value mg_value(Score s) { return Value(((s + 32768) & ~0xffff) / 0x10000); }
|
||||
|
||||
/// On Intel 64 bit we have a small speed regression with the standard conforming
|
||||
/// version, so use a faster code in this case that, although not 100% standard
|
||||
/// compliant it seems to work for Intel and MSVC.
|
||||
#if defined(IS_64BIT) && (!defined(__GNUC__) || defined(__INTEL_COMPILER))
|
||||
|
||||
inline Value eg_value(Score s) { return Value(int16_t(s & 0xffff)); }
|
||||
|
||||
#else
|
||||
|
||||
inline Value eg_value(Score s) {
|
||||
return Value((int)(unsigned(s) & 0x7fffu) - (int)(unsigned(s) & 0x8000u));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#define ENABLE_SAFE_OPERATORS_ON(T) \
|
||||
inline T operator+(const T d1, const T d2) { return T(int(d1) + int(d2)); } \
|
||||
inline T operator-(const T d1, const T d2) { return T(int(d1) - int(d2)); } \
|
||||
inline T operator*(int i, const T d) { return T(i * int(d)); } \
|
||||
inline T operator*(const T d, int i) { return T(int(d) * i); } \
|
||||
inline T operator-(const T d) { return T(-int(d)); } \
|
||||
inline T& operator+=(T& d1, const T d2) { d1 = d1 + d2; return d1; } \
|
||||
inline T& operator-=(T& d1, const T d2) { d1 = d1 - d2; return d1; } \
|
||||
inline T& operator*=(T& d, int i) { d = T(int(d) * i); return d; }
|
||||
|
||||
#define ENABLE_OPERATORS_ON(T) ENABLE_SAFE_OPERATORS_ON(T) \
|
||||
inline T operator++(T& d, int) { d = T(int(d) + 1); return d; } \
|
||||
inline T operator--(T& d, int) { d = T(int(d) - 1); return d; } \
|
||||
inline T operator/(const T d, int i) { return T(int(d) / i); } \
|
||||
inline T& operator/=(T& d, int i) { d = T(int(d) / i); return d; }
|
||||
|
||||
ENABLE_OPERATORS_ON(Value)
|
||||
ENABLE_OPERATORS_ON(PieceType)
|
||||
|
|
@ -326,44 +305,23 @@ ENABLE_OPERATORS_ON(Square)
|
|||
ENABLE_OPERATORS_ON(File)
|
||||
ENABLE_OPERATORS_ON(Rank)
|
||||
|
||||
#undef ENABLE_OPERATORS_ON
|
||||
/// Added operators for adding integers to a Value
|
||||
inline Value operator+(Value v, int i) { return Value(int(v) + i); }
|
||||
inline Value operator-(Value v, int i) { return Value(int(v) - i); }
|
||||
|
||||
// Extra operators for adding integers to a Value
|
||||
inline Value operator+ (Value v, int i) { return Value(int(v) + i); }
|
||||
inline Value operator- (Value v, int i) { return Value(int(v) - i); }
|
||||
ENABLE_SAFE_OPERATORS_ON(Score)
|
||||
|
||||
// Extracting the _signed_ lower and upper 16 bits it not so trivial
|
||||
// because according to the standard a simple cast to short is
|
||||
// implementation defined and so is a right shift of a signed integer.
|
||||
inline Value mg_value(Score s) { return Value(((s + 32768) & ~0xffff) / 0x10000); }
|
||||
|
||||
// Unfortunatly on Intel 64 bit we have a small speed regression, so use a faster code in
|
||||
// this case, although not 100% standard compliant it seems to work for Intel and MSVC.
|
||||
#if defined(IS_64BIT) && (!defined(__GNUC__) || defined(__INTEL_COMPILER))
|
||||
inline Value eg_value(Score s) { return Value(int16_t(s & 0xffff)); }
|
||||
#else
|
||||
inline Value eg_value(Score s) { return Value((int)(unsigned(s) & 0x7fffu) - (int)(unsigned(s) & 0x8000u)); }
|
||||
#endif
|
||||
|
||||
inline Score make_score(int mg, int eg) { return Score((mg << 16) + eg); }
|
||||
|
||||
// Division must be handled separately for each term
|
||||
inline Score operator/(Score s, int i) { return make_score(mg_value(s) / i, eg_value(s) / i); }
|
||||
|
||||
// Only declared but not defined. We don't want to multiply two scores due to
|
||||
// a very high risk of overflow. So user should explicitly convert to integer.
|
||||
/// Only declared but not defined. We don't want to multiply two scores due to
|
||||
/// a very high risk of overflow. So user should explicitly convert to integer.
|
||||
inline Score operator*(Score s1, Score s2);
|
||||
|
||||
// Remaining Score operators are standard
|
||||
inline Score operator+ (const Score d1, const Score d2) { return Score(int(d1) + int(d2)); }
|
||||
inline Score operator- (const Score d1, const Score d2) { return Score(int(d1) - int(d2)); }
|
||||
inline Score operator* (int i, const Score d) { return Score(i * int(d)); }
|
||||
inline Score operator* (const Score d, int i) { return Score(int(d) * i); }
|
||||
inline Score operator- (const Score d) { return Score(-int(d)); }
|
||||
inline void operator+= (Score& d1, const Score d2) { d1 = d1 + d2; }
|
||||
inline void operator-= (Score& d1, const Score d2) { d1 = d1 - d2; }
|
||||
inline void operator*= (Score& d, int i) { d = Score(int(d) * i); }
|
||||
inline void operator/= (Score& d, int i) { d = Score(int(d) / i); }
|
||||
/// Division of a Score must be handled separately for each term
|
||||
inline Score operator/(Score s, int i) {
|
||||
return make_score(mg_value(s) / i, eg_value(s) / i);
|
||||
}
|
||||
|
||||
#undef ENABLE_OPERATORS_ON
|
||||
#undef ENABLE_SAFE_OPERATORS_ON
|
||||
|
||||
const Value PawnValueMidgame = Value(0x0C6);
|
||||
const Value PawnValueEndgame = Value(0x102);
|
||||
|
|
@ -469,36 +427,10 @@ inline char rank_to_char(Rank r) {
|
|||
return char(r - RANK_1 + int('1'));
|
||||
}
|
||||
|
||||
inline const std::string square_to_string(Square s) {
|
||||
char ch[] = { file_to_char(file_of(s)), rank_to_char(rank_of(s)), 0 };
|
||||
return ch;
|
||||
}
|
||||
|
||||
inline Square pawn_push(Color c) {
|
||||
return c == WHITE ? DELTA_N : DELTA_S;
|
||||
}
|
||||
|
||||
// An helper insertion sort implementation, works with pointers and iterators
|
||||
template<typename T, typename K>
|
||||
inline void sort(K firstMove, K lastMove)
|
||||
{
|
||||
T value;
|
||||
K cur, p, d;
|
||||
|
||||
if (firstMove != lastMove)
|
||||
for (cur = firstMove + 1; cur != lastMove; cur++)
|
||||
{
|
||||
p = d = cur;
|
||||
value = *p--;
|
||||
if (*p < value)
|
||||
{
|
||||
do *d = *p;
|
||||
while (--d != firstMove && *--p < value);
|
||||
*d = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline Square move_from(Move m) {
|
||||
return Square((m >> 6) & 0x3F);
|
||||
}
|
||||
|
|
@ -547,4 +479,33 @@ inline bool is_ok(Move m) {
|
|||
return move_from(m) != move_to(m); // Catches also MOVE_NULL and MOVE_NONE
|
||||
}
|
||||
|
||||
#include <string>
|
||||
|
||||
inline const std::string square_to_string(Square s) {
|
||||
char ch[] = { file_to_char(file_of(s)), rank_to_char(rank_of(s)), 0 };
|
||||
return ch;
|
||||
}
|
||||
|
||||
/// Our insertion sort implementation, works with pointers and iterators and is
|
||||
/// guaranteed to be stable, as is needed.
|
||||
template<typename T, typename K>
|
||||
void sort(K firstMove, K lastMove)
|
||||
{
|
||||
T value;
|
||||
K cur, p, d;
|
||||
|
||||
if (firstMove != lastMove)
|
||||
for (cur = firstMove + 1; cur != lastMove; cur++)
|
||||
{
|
||||
p = d = cur;
|
||||
value = *p--;
|
||||
if (*p < value)
|
||||
{
|
||||
do *d = *p;
|
||||
while (--d != firstMove && *--p < value);
|
||||
*d = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif // !defined(TYPES_H_INCLUDED)
|
||||
|
|
|
|||
Loading…
Reference in New Issue