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Code Issues Releases Wiki Activity

Rename staticValue to refinedValue

Browse source 
Just to avoid misunderstandings.
True staticValue is available through search stack

No functional change

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski 2010-02-24 13:04:44 +02:00 • committed by Marco Costalba
parent e6f2d43b8a
commit c3b3dcc31a
1 changed files with 12 additions and 13 deletions
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25
src/search.cpp
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@ -1272,11 +1272,11 @@ namespace {
const TTEntry* tte;
Move ttMove, move;
Depth ext, newDepth;
Value bestValue, staticValue, nullValue, value, futilityValue, futilityValueScaled;
Value bestValue, refinedValue, nullValue, value, futilityValue, futilityValueScaled;
bool isCheck, singleEvasion, moveIsCheck, captureOrPromotion, dangerous;
bool mateThreat = false;
int moveCount = 0;
futilityValue = staticValue = bestValue = value = -VALUE_INFINITE;
futilityValue = refinedValue = bestValue = value = -VALUE_INFINITE;
if (depth < OnePly)
return qsearch(pos, ss, beta-1, beta, Depth(0), ply, threadID);
@ -1302,7 +1302,7 @@ namespace {
// Step 4. Transposition table lookup
// We don't want the score of a partial search to overwrite a previous full search
// TT value, so we use a different position key in case of an excluded move exsists.
// TT value, so we use a different position key in case of an excluded move exists.
Key posKey = excludedMove ? pos.get_exclusion_key() : pos.get_key();
tte = TT.retrieve(posKey);
@ -1320,13 +1320,12 @@ namespace {
if (!isCheck)
{
if (tte && (tte->type() & VALUE_TYPE_EVAL))
staticValue = value_from_tt(tte->value(), ply);
ss[ply].eval = value_from_tt(tte->value(), ply);
else
staticValue = evaluate(pos, ei, threadID);
ss[ply].eval = evaluate(pos, ei, threadID);
ss[ply].eval = staticValue;
futilityValue = staticValue + futility_margin(depth, 0); //FIXME: Remove me, only for split
staticValue = refine_eval(tte, staticValue, ply); // Enhance accuracy with TT value if possible
futilityValue = ss[ply].eval + futility_margin(depth, 0); //FIXME: Remove me, only for split
refinedValue = refine_eval(tte, ss[ply].eval, ply); // Enhance accuracy with TT value if possible
update_gains(pos, ss[ply - 1].currentMove, ss[ply - 1].eval, ss[ply].eval);
}
@ -1334,7 +1333,7 @@ namespace {
if ( !value_is_mate(beta)
&& !isCheck
&& depth < RazorDepth
&& staticValue < beta - (0x200 + 16 * depth)
&& refinedValue < beta - (0x200 + 16 * depth)
&& ss[ply - 1].currentMove != MOVE_NULL
&& ttMove == MOVE_NONE
&& !pos.has_pawn_on_7th(pos.side_to_move()))
@ -1351,8 +1350,8 @@ namespace {
if ( !isCheck
&& allowNullmove
&& depth < RazorDepth
&& staticValue - futility_margin(depth, 0) >= beta)
return staticValue - futility_margin(depth, 0);
&& refinedValue - futility_margin(depth, 0) >= beta)
return refinedValue - futility_margin(depth, 0);
// Step 8. Null move search with verification search
// When we jump directly to qsearch() we do a null move only if static value is
@ -1363,7 +1362,7 @@ namespace {
&& !isCheck
&& !value_is_mate(beta)
&& ok_to_do_nullmove(pos)
&& staticValue >= beta - (depth >= 4 * OnePly ? NullMoveMargin : 0))
&& refinedValue >= beta - (depth >= 4 * OnePly ? NullMoveMargin : 0))
{
ss[ply].currentMove = MOVE_NULL;
@ -1373,7 +1372,7 @@ namespace {
int R = 3 + (depth >= 5 * OnePly ? depth / 8 : 0);
// Null move dynamic reduction based on value
if (staticValue - beta > PawnValueMidgame)
if (refinedValue - beta > PawnValueMidgame)
R++;
nullValue = -search(pos, ss, -(beta-1), depth-R*OnePly, ply+1, false, threadID);