.

src/minecraft/net/minecraft/src/Chunk.java

@@ -576,7 +576,7 @@ public class Chunk
                     return false;
                 }
 
-                var10 = this.storageArrays[par2 >> 4] = new ExtendedBlockStorage(par2 >> 4 << 4);
+                var10 = this.storageArrays[par2 >> 4] = new ExtendedBlockStorage(par2 >> 4);
                 var11 = par2 >= var7;
             }
 
@@ -732,7 +732,7 @@ public class Chunk
 
         if (var6 == null)
         {
-            var6 = this.storageArrays[par3 >> 4] = new ExtendedBlockStorage(par3 >> 4 << 4);
+            var6 = this.storageArrays[par3 >> 4] = new ExtendedBlockStorage(par3 >> 4);
             this.generateSkylightMap();
         }
 
@@ -1228,7 +1228,7 @@ public class Chunk
             {
                 if (this.storageArrays[var6] == null)
                 {
-                    this.storageArrays[var6] = new ExtendedBlockStorage(var6 << 4);
+                    this.storageArrays[var6] = new ExtendedBlockStorage(var6);
                 }
 
                 byte[] var7 = this.storageArrays[var6].getBlockLSBArray();