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Use nullMove only through MovePicker.

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski
2009-08-24 18:08:31 +03:00
committed by Marco Costalba
parent f6d2452916
commit a5d699d62f
2 changed files with 46 additions and 42 deletions
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5
src/movepick.cpp
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@@ -44,6 +44,7 @@ namespace {
CACHE_LINE_ALIGNMENT
const MovegenPhaseT MainSearchPhaseTable[] = { PH_STOP, PH_NULL_MOVE, PH_TT_MOVES, PH_GOOD_CAPTURES, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT MainSearchNoNullPhaseTable[] = { PH_STOP, PH_TT_MOVES, PH_GOOD_CAPTURES, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT EvasionsPhaseTable[] = { PH_STOP, PH_EVASIONS, PH_STOP};
const MovegenPhaseT QsearchWithChecksPhaseTable[] = { PH_STOP, PH_TT_MOVES, PH_QCAPTURES, PH_QCHECKS, PH_STOP};
const MovegenPhaseT QsearchWithoutChecksPhaseTable[] = { PH_STOP, PH_TT_MOVES, PH_QCAPTURES, PH_STOP};
@@ -79,7 +80,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d,
if (p.is_check())
phasePtr = EvasionsPhaseTable;
else if (d > Depth(0))
phasePtr = MainSearchPhaseTable;
phasePtr = useNullMove ? MainSearchPhaseTable : MainSearchNoNullPhaseTable;
else if (d == Depth(0))
phasePtr = QsearchWithChecksPhaseTable;
else
@@ -116,7 +117,7 @@ Move MovePicker::get_next_move() {
switch (*phasePtr) {
case PH_NULL_MOVE:
break;
return MOVE_NULL;
case PH_TT_MOVES:
movesPicked = 0; // This is used as index to ttMoves[]