Clean X64 build and ported GetAttacks to x64.

1 files changed, 18 insertions, 5 deletions

diff --git a/src/split.c b/src/split.c
index 714d77b..ce9a752 100755
--- a/src/split.c
+++ b/src/split.c
@@ -1099,8 +1099,19 @@ Return value:
                                  &iExtend);
             
             //
+            // Cap total extension plies spent on this line, same as the
+            // non-split move loop in search.c does.
+            //
+            if (iExtend > 0)
+            {
+                iExtend = MIN(iExtend,
+                              MAX(MAX_EXTEND_PER_LINE -
+                                  ctx->sSearchFlags.iCumulativeExtend, 0));
+            }
+
+            //
             // Decide whether to history prune
-            // 
+            //
             if (TRUE == WeShouldDoHistoryPruning(iRoughEval,
                                                  iAlpha,
                                                  iBeta,
@@ -1117,13 +1128,14 @@ Return value:
                 iExtend = -ONE_PLY;
                 ctx->sPlyInfo[ctx->uPly].iExtensionAmount = -ONE_PLY;
             }
-            
+
             //
             // Compute next depth
-            // 
+            //
             uDepth = uDepth - ONE_PLY + iExtend;
             if (uDepth >= MAX_DEPTH_PER_SEARCH) uDepth = 0;
-            
+            ctx->sSearchFlags.iCumulativeExtend += iExtend;
+
             iScore = -Search(ctx, -iAlpha - 1, -iAlpha, uDepth);
             if ((iAlpha < iScore) && (iScore < iBeta))
             {
@@ -1132,7 +1144,7 @@ Return value:
 
             //
             // Decide whether to research reduced branches to full depth.
-            // 
+            //
             if ((iExtend < 0) && (iScore >= iBeta))
             {
                 uDepth += ONE_PLY;
@@ -1140,6 +1152,7 @@ Return value:
                 iScore = -Search(ctx, -iBeta, -iAlpha, uDepth);
             }
             UnmakeMove(ctx, mv);
+            ctx->sSearchFlags.iCumulativeExtend -= iExtend;
             ASSERT(PositionsAreEquivalent(&ctx->sPosition, &board));
             if (TRUE == g_SplitInfo[u].fTerminate) break;
             if (iScore > iBestScore)