diff --git a/docs/greater_than_or_equals.md b/docs/greater_than_or_equals.md
new file mode 100644
index 0000000..1af3225
--- /dev/null
+++ b/docs/greater_than_or_equals.md
@@ -0,0 +1,34 @@
+# greater_than_or_equals
+
+Returns true if the first argument is greater than or equal to the second argument.
+
+## Parameters
+
+* a (`integer`, `float`, `double`, `instruction`) - The first number.
+* b (`integer`, `float`, `double`, `instruction`) - The second number.
+
+## Return
+
+(`boolean`) - True if the first argument is greater than or equal to the second argument.
+
+## Exceptions
+
+* `EvaluationException` - If there was an error while evaluating one or more parameters.
+* `TypeException` - If one or more parameters are not of the expected type.
+
+## Instruction Example
+
+```json
+{
+  "type": "greater_than_or_equals",
+  "_": {
+    "a": 10,
+    "b": 2
+  }
+}
+```
+
+### Last Updated
+
+Monday, December 29th, 2022.
+Written by [Netkas](https://git.n64.cc/netkas)
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php b/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php
index 898cd8c..cfa9bd8 100644
--- a/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php
+++ b/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php
@@ -8,8 +8,9 @@
     use RTEX\Classes\InstructionBuilder;
     use RTEX\Classes\Utilities;
     use RTEX\Engine;
-    use RTEX\Exceptions\Core\MalformedInstructionException;
-    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Exceptions\EvaluationException;
+    use RTEX\Exceptions\InstructionException;
+    use RTEX\Exceptions\Runtime\TypeException;
     use RTEX\Interfaces\InstructionInterface;
 
     class GreaterThanOrEquals implements InstructionInterface
@@ -38,7 +39,6 @@
          * Returns an array representation of the instruction
          *
          * @return array
-         * @throws UnsupportedVariableType
          */
         public function toArray(): array
         {
@@ -53,8 +53,7 @@
          *
          * @param array $data
          * @return InstructionInterface
-         * @throws MalformedInstructionException
-         * @throws UnsupportedVariableType
+         * @throws InstructionException
          */
         public static function fromArray(array $data): InstructionInterface
         {
@@ -67,10 +66,19 @@
         /**
          * @param Engine $engine
          * @return int
-         * @throws UnsupportedVariableType
+         * @throws TypeException
+         * @throws EvaluationException
          */
         public function eval(Engine $engine): int
         {
+            $a = $engine->eval($this->A);
+            $b = $engine->eval($this->B);
+
+            if (!is_numeric($a))
+                throw new TypeException(sprintf('Parameter "a" must be numeric, %s given', Utilities::getType($a)));
+            if (!is_numeric($b))
+                throw new TypeException(sprintf('Parameter "b" must be numeric, %s given', Utilities::getType($b)));
+
             return (intval($engine->eval($this->A)) >= intval($engine->eval($this->B)));
         }
 
@@ -78,7 +86,6 @@
          * Returns the string representation of the instruction
          *
          * @return string
-         * @throws UnsupportedVariableType
          */
         public function __toString(): string
         {
@@ -103,8 +110,7 @@
          * Sets the value of A
          *
          * @param mixed $A
-         * @throws UnsupportedVariableType
-         * @throws MalformedInstructionException
+         * @throws InstructionException
          */
         public function setA(mixed $A): void
         {
@@ -125,8 +131,7 @@
          * Sets the value of B
          *
          * @param mixed $B
-         * @throws MalformedInstructionException
-         * @throws UnsupportedVariableType
+         * @throws InstructionException
          */
         public function setB(mixed $B): void
         {