diff --git a/src/main/java/carpet/script/Expression.java b/src/main/java/carpet/script/Expression.java
index a03f96cd..7f427a40 100644
--- a/src/main/java/carpet/script/Expression.java
+++ b/src/main/java/carpet/script/Expression.java
@@ -45,10 +45,11 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.BiFunction;
-import java.util.function.BinaryOperator;
+import java.util.function.DoubleBinaryOperator;
 import java.util.function.DoubleToLongFunction;
 import java.util.function.DoubleUnaryOperator;
 import java.util.function.Function;
+import java.util.function.LongBinaryOperator;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
@@ -537,16 +538,16 @@ public class Expression
         addUnaryFunction(name, (v) -> new NumericValue(fun.applyAsLong(NumericValue.asNumber(v).getDouble())));
     }
 
-    public void addMathematicalBinaryIntFunction(String name, BinaryOperator<Long> fun)
+    public void addMathematicalBinaryIntFunction(String name, LongBinaryOperator fun)
     {
         addBinaryFunction(name, (w, v) ->
-                new NumericValue(fun.apply(NumericValue.asNumber(w).getLong(), NumericValue.asNumber(v).getLong())));
+                new NumericValue(fun.applyAsLong(NumericValue.asNumber(w).getLong(), NumericValue.asNumber(v).getLong())));
     }
 
-    public void addMathematicalBinaryFunction(String name, BinaryOperator<Double> fun)
+    public void addMathematicalBinaryFunction(String name, DoubleBinaryOperator fun)
     {
         addBinaryFunction(name, (w, v) ->
-                new NumericValue(fun.apply(NumericValue.asNumber(w).getDouble(), NumericValue.asNumber(v).getDouble())));
+                new NumericValue(fun.applyAsDouble(NumericValue.asNumber(w).getDouble(), NumericValue.asNumber(v).getDouble())));
     }
 
 
diff --git a/src/main/java/carpet/script/language/Operators.java b/src/main/java/carpet/script/language/Operators.java
index 24a3ce20..524aef0b 100644
--- a/src/main/java/carpet/script/language/Operators.java
+++ b/src/main/java/carpet/script/language/Operators.java
@@ -315,20 +315,8 @@ public class Operators
         expression.addFunctionalEquivalence("<=", "nondecreasing");
         expression.addMathematicalBinaryIntFunction("bitwise_shift_left", (num, amount) -> num << amount);
         expression.addMathematicalBinaryIntFunction("bitwise_shift_right", (num, amount) -> num >> amount);
-        expression.addMathematicalBinaryIntFunction("bitwise_roll_left", (num, num2) -> {
-            long amount = num2 % 64;
-            long amountToRoll = 64 - amount;
-            long rolledBits = ((-1L) >> amountToRoll) << amountToRoll;
-            long rolledAmount = (num & rolledBits) >> amountToRoll;
-            return num << amount | rolledAmount;
-        });
-        expression.addMathematicalBinaryIntFunction("bitwise_roll_right", (num, num2) -> {
-            long amount = num2 % 64;
-            long amountToRoll = 64 - amount;
-            long rolledBits = ((-1L) << amountToRoll) >> amountToRoll;
-            long rolledAmount = (num & rolledBits) << amountToRoll;
-            return num >> amount | rolledAmount;
-        });
+        expression.addMathematicalBinaryIntFunction("bitwise_roll_left", (num, amount) -> Long.rotateLeft(num, (int)amount));
+        expression.addMathematicalBinaryIntFunction("bitwise_roll_right", (num, amount) -> Long.rotateRight(num, (int)amount));
         expression.addMathematicalUnaryIntFunction("bitwise_not", d -> {
             long num = (long) d;
             return ~num;