diff --git a/modules/gdscript/gdscript_byte_codegen.cpp b/modules/gdscript/gdscript_byte_codegen.cpp
index 1bc83fbbb5c0..89d16e679f81 100644
--- a/modules/gdscript/gdscript_byte_codegen.cpp
+++ b/modules/gdscript/gdscript_byte_codegen.cpp
@@ -183,7 +183,7 @@ GDScriptFunction *GDScriptByteCodeGenerator::write_end() {
 		ERR_PRINT("Non-zero temporary variables at end of function: " + itos(used_temporaries.size()));
 	}
 #endif
-	append(GDScriptFunction::OPCODE_END, 0);
+	append_opcode(GDScriptFunction::OPCODE_END);
 
 	for (int i = 0; i < temporaries.size(); i++) {
 		int stack_index = i + max_locals + RESERVED_STACK;
@@ -424,115 +424,115 @@ void GDScriptByteCodeGenerator::set_initial_line(int p_line) {
 void GDScriptByteCodeGenerator::write_type_adjust(const Address &p_target, Variant::Type p_new_type) {
 	switch (p_new_type) {
 		case Variant::BOOL:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_BOOL, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_BOOL);
 			break;
 		case Variant::INT:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_INT, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_INT);
 			break;
 		case Variant::FLOAT:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_FLOAT, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_FLOAT);
 			break;
 		case Variant::STRING:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_STRING, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_STRING);
 			break;
 		case Variant::VECTOR2:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR2, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR2);
 			break;
 		case Variant::VECTOR2I:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR2I, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR2I);
 			break;
 		case Variant::RECT2:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_RECT2, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_RECT2);
 			break;
 		case Variant::RECT2I:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_RECT2I, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_RECT2I);
 			break;
 		case Variant::VECTOR3:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3);
 			break;
 		case Variant::VECTOR3I:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3I, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3I);
 			break;
 		case Variant::TRANSFORM2D:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_TRANSFORM2D, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_TRANSFORM2D);
 			break;
 		case Variant::VECTOR4:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3);
 			break;
 		case Variant::VECTOR4I:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3I, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_VECTOR3I);
 			break;
 		case Variant::PLANE:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PLANE, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PLANE);
 			break;
 		case Variant::QUATERNION:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_QUATERNION, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_QUATERNION);
 			break;
 		case Variant::AABB:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_AABB, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_AABB);
 			break;
 		case Variant::BASIS:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_BASIS, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_BASIS);
 			break;
 		case Variant::TRANSFORM3D:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_TRANSFORM3D, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_TRANSFORM3D);
 			break;
 		case Variant::PROJECTION:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PROJECTION, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PROJECTION);
 			break;
 		case Variant::COLOR:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_COLOR, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_COLOR);
 			break;
 		case Variant::STRING_NAME:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_STRING_NAME, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_STRING_NAME);
 			break;
 		case Variant::NODE_PATH:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_NODE_PATH, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_NODE_PATH);
 			break;
 		case Variant::RID:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_RID, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_RID);
 			break;
 		case Variant::OBJECT:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_OBJECT, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_OBJECT);
 			break;
 		case Variant::CALLABLE:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_CALLABLE, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_CALLABLE);
 			break;
 		case Variant::SIGNAL:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_SIGNAL, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_SIGNAL);
 			break;
 		case Variant::DICTIONARY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_DICTIONARY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_DICTIONARY);
 			break;
 		case Variant::ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_ARRAY);
 			break;
 		case Variant::PACKED_BYTE_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_BYTE_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_BYTE_ARRAY);
 			break;
 		case Variant::PACKED_INT32_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_INT32_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_INT32_ARRAY);
 			break;
 		case Variant::PACKED_INT64_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_INT64_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_INT64_ARRAY);
 			break;
 		case Variant::PACKED_FLOAT32_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_FLOAT32_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_FLOAT32_ARRAY);
 			break;
 		case Variant::PACKED_FLOAT64_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_FLOAT64_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_FLOAT64_ARRAY);
 			break;
 		case Variant::PACKED_STRING_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_STRING_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_STRING_ARRAY);
 			break;
 		case Variant::PACKED_VECTOR2_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_VECTOR2_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_VECTOR2_ARRAY);
 			break;
 		case Variant::PACKED_VECTOR3_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_VECTOR3_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_VECTOR3_ARRAY);
 			break;
 		case Variant::PACKED_COLOR_ARRAY:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_COLOR_ARRAY, 1);
+			append_opcode(GDScriptFunction::OPCODE_TYPE_ADJUST_PACKED_COLOR_ARRAY);
 			break;
 		case Variant::NIL:
 		case Variant::VARIANT_MAX:
@@ -546,7 +546,7 @@ void GDScriptByteCodeGenerator::write_unary_operator(const Address &p_target, Va
 		// Gather specific operator.
 		Variant::ValidatedOperatorEvaluator op_func = Variant::get_validated_operator_evaluator(p_operator, p_left_operand.type.builtin_type, Variant::NIL);
 
-		append(GDScriptFunction::OPCODE_OPERATOR_VALIDATED, 3);
+		append_opcode(GDScriptFunction::OPCODE_OPERATOR_VALIDATED);
 		append(p_left_operand);
 		append(Address());
 		append(p_target);
@@ -555,7 +555,7 @@ void GDScriptByteCodeGenerator::write_unary_operator(const Address &p_target, Va
 	}
 
 	// No specific types, perform variant evaluation.
-	append(GDScriptFunction::OPCODE_OPERATOR, 3);
+	append_opcode(GDScriptFunction::OPCODE_OPERATOR);
 	append(p_left_operand);
 	append(Address());
 	append(p_target);
@@ -575,7 +575,7 @@ void GDScriptByteCodeGenerator::write_binary_operator(const Address &p_target, V
 		// Gather specific operator.
 		Variant::ValidatedOperatorEvaluator op_func = Variant::get_validated_operator_evaluator(p_operator, p_left_operand.type.builtin_type, p_right_operand.type.builtin_type);
 
-		append(GDScriptFunction::OPCODE_OPERATOR_VALIDATED, 3);
+		append_opcode(GDScriptFunction::OPCODE_OPERATOR_VALIDATED);
 		append(p_left_operand);
 		append(p_right_operand);
 		append(p_target);
@@ -584,7 +584,7 @@ void GDScriptByteCodeGenerator::write_binary_operator(const Address &p_target, V
 	}
 
 	// No specific types, perform variant evaluation.
-	append(GDScriptFunction::OPCODE_OPERATOR, 3);
+	append_opcode(GDScriptFunction::OPCODE_OPERATOR);
 	append(p_left_operand);
 	append(p_right_operand);
 	append(p_target);
@@ -592,28 +592,28 @@ void GDScriptByteCodeGenerator::write_binary_operator(const Address &p_target, V
 }
 
 void GDScriptByteCodeGenerator::write_type_test(const Address &p_target, const Address &p_source, const Address &p_type) {
-	append(GDScriptFunction::OPCODE_EXTENDS_TEST, 3);
+	append_opcode(GDScriptFunction::OPCODE_EXTENDS_TEST);
 	append(p_source);
 	append(p_type);
 	append(p_target);
 }
 
 void GDScriptByteCodeGenerator::write_type_test_builtin(const Address &p_target, const Address &p_source, Variant::Type p_type) {
-	append(GDScriptFunction::OPCODE_IS_BUILTIN, 2);
+	append_opcode(GDScriptFunction::OPCODE_IS_BUILTIN);
 	append(p_source);
 	append(p_target);
 	append(p_type);
 }
 
 void GDScriptByteCodeGenerator::write_and_left_operand(const Address &p_left_operand) {
-	append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_NOT);
 	append(p_left_operand);
 	logic_op_jump_pos1.push_back(opcodes.size());
 	append(0); // Jump target, will be patched.
 }
 
 void GDScriptByteCodeGenerator::write_and_right_operand(const Address &p_right_operand) {
-	append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_NOT);
 	append(p_right_operand);
 	logic_op_jump_pos2.push_back(opcodes.size());
 	append(0); // Jump target, will be patched.
@@ -621,29 +621,29 @@ void GDScriptByteCodeGenerator::write_and_right_operand(const Address &p_right_o
 
 void GDScriptByteCodeGenerator::write_end_and(const Address &p_target) {
 	// If here means both operands are true.
-	append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_TRUE);
 	append(p_target);
 	// Jump away from the fail condition.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(opcodes.size() + 3);
 	// Here it means one of operands is false.
 	patch_jump(logic_op_jump_pos1.back()->get());
 	patch_jump(logic_op_jump_pos2.back()->get());
 	logic_op_jump_pos1.pop_back();
 	logic_op_jump_pos2.pop_back();
-	append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_FALSE);
 	append(p_target);
 }
 
 void GDScriptByteCodeGenerator::write_or_left_operand(const Address &p_left_operand) {
-	append(GDScriptFunction::OPCODE_JUMP_IF, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF);
 	append(p_left_operand);
 	logic_op_jump_pos1.push_back(opcodes.size());
 	append(0); // Jump target, will be patched.
 }
 
 void GDScriptByteCodeGenerator::write_or_right_operand(const Address &p_right_operand) {
-	append(GDScriptFunction::OPCODE_JUMP_IF, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF);
 	append(p_right_operand);
 	logic_op_jump_pos2.push_back(opcodes.size());
 	append(0); // Jump target, will be patched.
@@ -651,17 +651,17 @@ void GDScriptByteCodeGenerator::write_or_right_operand(const Address &p_right_op
 
 void GDScriptByteCodeGenerator::write_end_or(const Address &p_target) {
 	// If here means both operands are false.
-	append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_FALSE);
 	append(p_target);
 	// Jump away from the success condition.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(opcodes.size() + 3);
 	// Here it means one of operands is true.
 	patch_jump(logic_op_jump_pos1.back()->get());
 	patch_jump(logic_op_jump_pos2.back()->get());
 	logic_op_jump_pos1.pop_back();
 	logic_op_jump_pos2.pop_back();
-	append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_TRUE);
 	append(p_target);
 }
 
@@ -670,18 +670,18 @@ void GDScriptByteCodeGenerator::write_start_ternary(const Address &p_target) {
 }
 
 void GDScriptByteCodeGenerator::write_ternary_condition(const Address &p_condition) {
-	append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_NOT);
 	append(p_condition);
 	ternary_jump_fail_pos.push_back(opcodes.size());
 	append(0); // Jump target, will be patched.
 }
 
 void GDScriptByteCodeGenerator::write_ternary_true_expr(const Address &p_expr) {
-	append(GDScriptFunction::OPCODE_ASSIGN, 2);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN);
 	append(ternary_result.back()->get());
 	append(p_expr);
 	// Jump away from the false path.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	ternary_jump_skip_pos.push_back(opcodes.size());
 	append(0);
 	// Fail must jump here.
@@ -690,7 +690,7 @@ void GDScriptByteCodeGenerator::write_ternary_true_expr(const Address &p_expr) {
 }
 
 void GDScriptByteCodeGenerator::write_ternary_false_expr(const Address &p_expr) {
-	append(GDScriptFunction::OPCODE_ASSIGN, 2);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN);
 	append(ternary_result.back()->get());
 	append(p_expr);
 }
@@ -707,7 +707,7 @@ void GDScriptByteCodeGenerator::write_set(const Address &p_target, const Address
 				IS_BUILTIN_TYPE(p_source, Variant::get_indexed_element_type(p_target.type.builtin_type))) {
 			// Use indexed setter instead.
 			Variant::ValidatedIndexedSetter setter = Variant::get_member_validated_indexed_setter(p_target.type.builtin_type);
-			append(GDScriptFunction::OPCODE_SET_INDEXED_VALIDATED, 3);
+			append_opcode(GDScriptFunction::OPCODE_SET_INDEXED_VALIDATED);
 			append(p_target);
 			append(p_index);
 			append(p_source);
@@ -715,7 +715,7 @@ void GDScriptByteCodeGenerator::write_set(const Address &p_target, const Address
 			return;
 		} else if (Variant::get_member_validated_keyed_setter(p_target.type.builtin_type)) {
 			Variant::ValidatedKeyedSetter setter = Variant::get_member_validated_keyed_setter(p_target.type.builtin_type);
-			append(GDScriptFunction::OPCODE_SET_KEYED_VALIDATED, 3);
+			append_opcode(GDScriptFunction::OPCODE_SET_KEYED_VALIDATED);
 			append(p_target);
 			append(p_index);
 			append(p_source);
@@ -724,7 +724,7 @@ void GDScriptByteCodeGenerator::write_set(const Address &p_target, const Address
 		}
 	}
 
-	append(GDScriptFunction::OPCODE_SET_KEYED, 3);
+	append_opcode(GDScriptFunction::OPCODE_SET_KEYED);
 	append(p_target);
 	append(p_index);
 	append(p_source);
@@ -735,7 +735,7 @@ void GDScriptByteCodeGenerator::write_get(const Address &p_target, const Address
 		if (IS_BUILTIN_TYPE(p_index, Variant::INT) && Variant::get_member_validated_indexed_getter(p_source.type.builtin_type)) {
 			// Use indexed getter instead.
 			Variant::ValidatedIndexedGetter getter = Variant::get_member_validated_indexed_getter(p_source.type.builtin_type);
-			append(GDScriptFunction::OPCODE_GET_INDEXED_VALIDATED, 3);
+			append_opcode(GDScriptFunction::OPCODE_GET_INDEXED_VALIDATED);
 			append(p_source);
 			append(p_index);
 			append(p_target);
@@ -743,7 +743,7 @@ void GDScriptByteCodeGenerator::write_get(const Address &p_target, const Address
 			return;
 		} else if (Variant::get_member_validated_keyed_getter(p_source.type.builtin_type)) {
 			Variant::ValidatedKeyedGetter getter = Variant::get_member_validated_keyed_getter(p_source.type.builtin_type);
-			append(GDScriptFunction::OPCODE_GET_KEYED_VALIDATED, 3);
+			append_opcode(GDScriptFunction::OPCODE_GET_KEYED_VALIDATED);
 			append(p_source);
 			append(p_index);
 			append(p_target);
@@ -751,7 +751,7 @@ void GDScriptByteCodeGenerator::write_get(const Address &p_target, const Address
 			return;
 		}
 	}
-	append(GDScriptFunction::OPCODE_GET_KEYED, 3);
+	append_opcode(GDScriptFunction::OPCODE_GET_KEYED);
 	append(p_source);
 	append(p_index);
 	append(p_target);
@@ -761,13 +761,13 @@ void GDScriptByteCodeGenerator::write_set_named(const Address &p_target, const S
 	if (HAS_BUILTIN_TYPE(p_target) && Variant::get_member_validated_setter(p_target.type.builtin_type, p_name) &&
 			IS_BUILTIN_TYPE(p_source, Variant::get_member_type(p_target.type.builtin_type, p_name))) {
 		Variant::ValidatedSetter setter = Variant::get_member_validated_setter(p_target.type.builtin_type, p_name);
-		append(GDScriptFunction::OPCODE_SET_NAMED_VALIDATED, 2);
+		append_opcode(GDScriptFunction::OPCODE_SET_NAMED_VALIDATED);
 		append(p_target);
 		append(p_source);
 		append(setter);
 		return;
 	}
-	append(GDScriptFunction::OPCODE_SET_NAMED, 2);
+	append_opcode(GDScriptFunction::OPCODE_SET_NAMED);
 	append(p_target);
 	append(p_source);
 	append(p_name);
@@ -776,26 +776,26 @@ void GDScriptByteCodeGenerator::write_set_named(const Address &p_target, const S
 void GDScriptByteCodeGenerator::write_get_named(const Address &p_target, const StringName &p_name, const Address &p_source) {
 	if (HAS_BUILTIN_TYPE(p_source) && Variant::get_member_validated_getter(p_source.type.builtin_type, p_name)) {
 		Variant::ValidatedGetter getter = Variant::get_member_validated_getter(p_source.type.builtin_type, p_name);
-		append(GDScriptFunction::OPCODE_GET_NAMED_VALIDATED, 2);
+		append_opcode(GDScriptFunction::OPCODE_GET_NAMED_VALIDATED);
 		append(p_source);
 		append(p_target);
 		append(getter);
 		return;
 	}
-	append(GDScriptFunction::OPCODE_GET_NAMED, 2);
+	append_opcode(GDScriptFunction::OPCODE_GET_NAMED);
 	append(p_source);
 	append(p_target);
 	append(p_name);
 }
 
 void GDScriptByteCodeGenerator::write_set_member(const Address &p_value, const StringName &p_name) {
-	append(GDScriptFunction::OPCODE_SET_MEMBER, 1);
+	append_opcode(GDScriptFunction::OPCODE_SET_MEMBER);
 	append(p_value);
 	append(p_name);
 }
 
 void GDScriptByteCodeGenerator::write_get_member(const Address &p_target, const StringName &p_name) {
-	append(GDScriptFunction::OPCODE_GET_MEMBER, 1);
+	append_opcode(GDScriptFunction::OPCODE_GET_MEMBER);
 	append(p_target);
 	append(p_name);
 }
@@ -804,11 +804,11 @@ void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_ta
 	switch (p_target.type.kind) {
 		case GDScriptDataType::BUILTIN: {
 			if (p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
-				append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
+				append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY);
 				append(p_target);
 				append(p_source);
 			} else {
-				append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
+				append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN);
 				append(p_target);
 				append(p_source);
 				append(p_target.type.builtin_type);
@@ -818,7 +818,7 @@ void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_ta
 			int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_target.type.native_type];
 			Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
 			class_idx = get_constant_pos(nc) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
-			append(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE, 3);
+			append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE);
 			append(p_target);
 			append(p_source);
 			append(class_idx);
@@ -828,7 +828,7 @@ void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_ta
 			Variant script = p_target.type.script_type;
 			int idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
 
-			append(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT, 3);
+			append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT);
 			append(p_target);
 			append(p_source);
 			append(idx);
@@ -837,7 +837,7 @@ void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_ta
 			ERR_PRINT("Compiler bug: unresolved assign.");
 
 			// Shouldn't get here, but fail-safe to a regular assignment
-			append(GDScriptFunction::OPCODE_ASSIGN, 2);
+			append_opcode(GDScriptFunction::OPCODE_ASSIGN);
 			append(p_target);
 			append(p_source);
 		}
@@ -846,29 +846,29 @@ void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_ta
 
 void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Address &p_source) {
 	if (p_target.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
-		append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
+		append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY);
 		append(p_target);
 		append(p_source);
 	} else if (p_target.type.kind == GDScriptDataType::BUILTIN && p_source.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type != p_source.type.builtin_type) {
 		// Need conversion.
-		append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
+		append_opcode(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN);
 		append(p_target);
 		append(p_source);
 		append(p_target.type.builtin_type);
 	} else {
-		append(GDScriptFunction::OPCODE_ASSIGN, 2);
+		append_opcode(GDScriptFunction::OPCODE_ASSIGN);
 		append(p_target);
 		append(p_source);
 	}
 }
 
 void GDScriptByteCodeGenerator::write_assign_true(const Address &p_target) {
-	append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_TRUE);
 	append(p_target);
 }
 
 void GDScriptByteCodeGenerator::write_assign_false(const Address &p_target) {
-	append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN_FALSE);
 	append(p_target);
 }
 
@@ -878,13 +878,13 @@ void GDScriptByteCodeGenerator::write_assign_default_parameter(const Address &p_
 }
 
 void GDScriptByteCodeGenerator::write_store_global(const Address &p_dst, int p_global_index) {
-	append(GDScriptFunction::OPCODE_STORE_GLOBAL, 1);
+	append_opcode(GDScriptFunction::OPCODE_STORE_GLOBAL);
 	append(p_dst);
 	append(p_global_index);
 }
 
 void GDScriptByteCodeGenerator::write_store_named_global(const Address &p_dst, const StringName &p_global) {
-	append(GDScriptFunction::OPCODE_STORE_NAMED_GLOBAL, 1);
+	append_opcode(GDScriptFunction::OPCODE_STORE_NAMED_GLOBAL);
 	append(p_dst);
 	append(p_global);
 }
@@ -894,20 +894,20 @@ void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Addres
 
 	switch (p_type.kind) {
 		case GDScriptDataType::BUILTIN: {
-			append(GDScriptFunction::OPCODE_CAST_TO_BUILTIN, 2);
+			append_opcode(GDScriptFunction::OPCODE_CAST_TO_BUILTIN);
 			index = p_type.builtin_type;
 		} break;
 		case GDScriptDataType::NATIVE: {
 			int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_type.native_type];
 			Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
-			append(GDScriptFunction::OPCODE_CAST_TO_NATIVE, 3);
+			append_opcode(GDScriptFunction::OPCODE_CAST_TO_NATIVE);
 			index = get_constant_pos(nc) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
 		} break;
 		case GDScriptDataType::SCRIPT:
 		case GDScriptDataType::GDSCRIPT: {
 			Variant script = p_type.script_type;
 			int idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
-			append(GDScriptFunction::OPCODE_CAST_TO_SCRIPT, 3);
+			append_opcode(GDScriptFunction::OPCODE_CAST_TO_SCRIPT);
 			index = idx;
 		} break;
 		default: {
@@ -921,7 +921,7 @@ void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Addres
 }
 
 void GDScriptByteCodeGenerator::write_call(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
+	append_opcode_and_argcount(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -932,7 +932,7 @@ void GDScriptByteCodeGenerator::write_call(const Address &p_target, const Addres
 }
 
 void GDScriptByteCodeGenerator::write_super_call(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CALL_SELF_BASE, 1 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_SELF_BASE, 1 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -942,7 +942,7 @@ void GDScriptByteCodeGenerator::write_super_call(const Address &p_target, const
 }
 
 void GDScriptByteCodeGenerator::write_call_async(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -953,7 +953,7 @@ void GDScriptByteCodeGenerator::write_call_async(const Address &p_target, const
 }
 
 void GDScriptByteCodeGenerator::write_call_gdscript_utility(const Address &p_target, GDScriptUtilityFunctions::FunctionPtr p_function, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CALL_GDSCRIPT_UTILITY, 1 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_GDSCRIPT_UTILITY, 1 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -979,7 +979,7 @@ void GDScriptByteCodeGenerator::write_call_utility(const Address &p_target, cons
 	}
 
 	if (is_validated) {
-		append(GDScriptFunction::OPCODE_CALL_UTILITY_VALIDATED, 1 + p_arguments.size());
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_UTILITY_VALIDATED, 1 + p_arguments.size());
 		for (int i = 0; i < p_arguments.size(); i++) {
 			append(p_arguments[i]);
 		}
@@ -987,7 +987,7 @@ void GDScriptByteCodeGenerator::write_call_utility(const Address &p_target, cons
 		append(p_arguments.size());
 		append(Variant::get_validated_utility_function(p_function));
 	} else {
-		append(GDScriptFunction::OPCODE_CALL_UTILITY, 1 + p_arguments.size());
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_UTILITY, 1 + p_arguments.size());
 		for (int i = 0; i < p_arguments.size(); i++) {
 			append(p_arguments[i]);
 		}
@@ -1029,7 +1029,7 @@ void GDScriptByteCodeGenerator::write_call_builtin_type(const Address &p_target,
 		}
 	}
 
-	append(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size());
 
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
@@ -1060,7 +1060,7 @@ void GDScriptByteCodeGenerator::write_call_builtin_type_static(const Address &p_
 
 	if (!is_validated) {
 		// Perform regular call.
-		append(GDScriptFunction::OPCODE_CALL_BUILTIN_STATIC, p_arguments.size() + 1);
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_BUILTIN_STATIC, p_arguments.size() + 1);
 		for (int i = 0; i < p_arguments.size(); i++) {
 			append(p_arguments[i]);
 		}
@@ -1079,7 +1079,7 @@ void GDScriptByteCodeGenerator::write_call_builtin_type_static(const Address &p_
 		}
 	}
 
-	append(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size());
 
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
@@ -1097,7 +1097,7 @@ void GDScriptByteCodeGenerator::write_call_native_static(const Address &p_target
 
 	if (!is_validated) {
 		// Perform regular call.
-		append(GDScriptFunction::OPCODE_CALL_NATIVE_STATIC, p_arguments.size() + 1);
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_NATIVE_STATIC, p_arguments.size() + 1);
 		for (int i = 0; i < p_arguments.size(); i++) {
 			append(p_arguments[i]);
 		}
@@ -1109,7 +1109,7 @@ void GDScriptByteCodeGenerator::write_call_native_static(const Address &p_target
 }
 
 void GDScriptByteCodeGenerator::write_call_method_bind(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) {
-	append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size());
+	append_opcode_and_argcount(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1120,9 +1120,9 @@ void GDScriptByteCodeGenerator::write_call_method_bind(const Address &p_target,
 }
 
 void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) {
-#define CASE_TYPE(m_type)                                                               \
-	case Variant::m_type:                                                               \
-		append(GDScriptFunction::OPCODE_CALL_PTRCALL_##m_type, 2 + p_arguments.size()); \
+#define CASE_TYPE(m_type)                                                                                   \
+	case Variant::m_type:                                                                                   \
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_PTRCALL_##m_type, 2 + p_arguments.size()); \
 		break
 
 	bool is_ptrcall = true;
@@ -1166,12 +1166,12 @@ void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, cons
 			CASE_TYPE(PACKED_VECTOR3_ARRAY);
 			CASE_TYPE(PACKED_COLOR_ARRAY);
 			default:
-				append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size());
+				append_opcode_and_argcount(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size());
 				is_ptrcall = false;
 				break;
 		}
 	} else {
-		append(GDScriptFunction::OPCODE_CALL_PTRCALL_NO_RETURN, 2 + p_arguments.size());
+		append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_PTRCALL_NO_RETURN, 2 + p_arguments.size());
 	}
 
 	for (int i = 0; i < p_arguments.size(); i++) {
@@ -1189,7 +1189,7 @@ void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, cons
 }
 
 void GDScriptByteCodeGenerator::write_call_self(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
+	append_opcode_and_argcount(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1200,7 +1200,7 @@ void GDScriptByteCodeGenerator::write_call_self(const Address &p_target, const S
 }
 
 void GDScriptByteCodeGenerator::write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1211,7 +1211,7 @@ void GDScriptByteCodeGenerator::write_call_self_async(const Address &p_target, c
 }
 
 void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
-	append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
+	append_opcode_and_argcount(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1222,7 +1222,7 @@ void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_targ
 }
 
 void GDScriptByteCodeGenerator::write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector<Address> &p_captures, bool p_use_self) {
-	append(p_use_self ? GDScriptFunction::OPCODE_CREATE_SELF_LAMBDA : GDScriptFunction::OPCODE_CREATE_LAMBDA, 1 + p_captures.size());
+	append_opcode_and_argcount(p_use_self ? GDScriptFunction::OPCODE_CREATE_SELF_LAMBDA : GDScriptFunction::OPCODE_CREATE_LAMBDA, 1 + p_captures.size());
 	for (int i = 0; i < p_captures.size(); i++) {
 		append(p_captures[i]);
 	}
@@ -1262,7 +1262,7 @@ void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant
 			}
 		}
 		if (valid_constructor >= 0) {
-			append(GDScriptFunction::OPCODE_CONSTRUCT_VALIDATED, 1 + p_arguments.size());
+			append_opcode_and_argcount(GDScriptFunction::OPCODE_CONSTRUCT_VALIDATED, 1 + p_arguments.size());
 			for (int i = 0; i < p_arguments.size(); i++) {
 				append(p_arguments[i]);
 			}
@@ -1273,7 +1273,7 @@ void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant
 		}
 	}
 
-	append(GDScriptFunction::OPCODE_CONSTRUCT, 1 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CONSTRUCT, 1 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1283,7 +1283,7 @@ void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant
 }
 
 void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CONSTRUCT_ARRAY, 1 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CONSTRUCT_ARRAY, 1 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1292,7 +1292,7 @@ void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, c
 }
 
 void GDScriptByteCodeGenerator::write_construct_typed_array(const Address &p_target, const GDScriptDataType &p_element_type, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CONSTRUCT_TYPED_ARRAY, 2 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CONSTRUCT_TYPED_ARRAY, 2 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1311,7 +1311,7 @@ void GDScriptByteCodeGenerator::write_construct_typed_array(const Address &p_tar
 }
 
 void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_target, const Vector<Address> &p_arguments) {
-	append(GDScriptFunction::OPCODE_CONSTRUCT_DICTIONARY, 1 + p_arguments.size());
+	append_opcode_and_argcount(GDScriptFunction::OPCODE_CONSTRUCT_DICTIONARY, 1 + p_arguments.size());
 	for (int i = 0; i < p_arguments.size(); i++) {
 		append(p_arguments[i]);
 	}
@@ -1320,21 +1320,21 @@ void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_targ
 }
 
 void GDScriptByteCodeGenerator::write_await(const Address &p_target, const Address &p_operand) {
-	append(GDScriptFunction::OPCODE_AWAIT, 1);
+	append_opcode(GDScriptFunction::OPCODE_AWAIT);
 	append(p_operand);
-	append(GDScriptFunction::OPCODE_AWAIT_RESUME, 1);
+	append_opcode(GDScriptFunction::OPCODE_AWAIT_RESUME);
 	append(p_target);
 }
 
 void GDScriptByteCodeGenerator::write_if(const Address &p_condition) {
-	append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_NOT);
 	append(p_condition);
 	if_jmp_addrs.push_back(opcodes.size());
 	append(0); // Jump destination, will be patched.
 }
 
 void GDScriptByteCodeGenerator::write_else() {
-	append(GDScriptFunction::OPCODE_JUMP, 0); // Jump from true if block;
+	append_opcode(GDScriptFunction::OPCODE_JUMP); // Jump from true if block;
 	int else_jmp_addr = opcodes.size();
 	append(0); // Jump destination, will be patched.
 
@@ -1349,7 +1349,7 @@ void GDScriptByteCodeGenerator::write_endif() {
 }
 
 void GDScriptByteCodeGenerator::write_jump_if_shared(const Address &p_value) {
-	append(GDScriptFunction::OPCODE_JUMP_IF_SHARED, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_SHARED);
 	append(p_value);
 	if_jmp_addrs.push_back(opcodes.size());
 	append(0); // Jump destination, will be patched.
@@ -1373,7 +1373,7 @@ void GDScriptByteCodeGenerator::write_for_assignment(const Address &p_variable,
 	const Address &container = for_container_variables.back()->get();
 
 	// Assign container.
-	append(GDScriptFunction::OPCODE_ASSIGN, 2);
+	append_opcode(GDScriptFunction::OPCODE_ASSIGN);
 	append(container);
 	append(p_list);
 
@@ -1475,19 +1475,19 @@ void GDScriptByteCodeGenerator::write_for() {
 	}
 
 	// Begin loop.
-	append(begin_opcode, 3);
+	append_opcode(begin_opcode);
 	append(counter);
 	append(container);
 	append(iterator);
 	for_jmp_addrs.push_back(opcodes.size());
 	append(0); // End of loop address, will be patched.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(opcodes.size() + 6); // Skip over 'continue' code.
 
 	// Next iteration.
 	int continue_addr = opcodes.size();
 	continue_addrs.push_back(continue_addr);
-	append(iterate_opcode, 3);
+	append_opcode(iterate_opcode);
 	append(counter);
 	append(container);
 	append(iterator);
@@ -1497,7 +1497,7 @@ void GDScriptByteCodeGenerator::write_for() {
 
 void GDScriptByteCodeGenerator::write_endfor() {
 	// Jump back to loop check.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(continue_addrs.back()->get());
 	continue_addrs.pop_back();
 
@@ -1526,7 +1526,7 @@ void GDScriptByteCodeGenerator::start_while_condition() {
 
 void GDScriptByteCodeGenerator::write_while(const Address &p_condition) {
 	// Condition check.
-	append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1);
+	append_opcode(GDScriptFunction::OPCODE_JUMP_IF_NOT);
 	append(p_condition);
 	while_jmp_addrs.push_back(opcodes.size());
 	append(0); // End of loop address, will be patched.
@@ -1534,7 +1534,7 @@ void GDScriptByteCodeGenerator::write_while(const Address &p_condition) {
 
 void GDScriptByteCodeGenerator::write_endwhile() {
 	// Jump back to loop check.
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(continue_addrs.back()->get());
 	continue_addrs.pop_back();
 
@@ -1572,28 +1572,28 @@ void GDScriptByteCodeGenerator::end_match() {
 }
 
 void GDScriptByteCodeGenerator::write_break() {
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	current_breaks_to_patch.back()->get().push_back(opcodes.size());
 	append(0);
 }
 
 void GDScriptByteCodeGenerator::write_continue() {
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	append(continue_addrs.back()->get());
 }
 
 void GDScriptByteCodeGenerator::write_continue_match() {
-	append(GDScriptFunction::OPCODE_JUMP, 0);
+	append_opcode(GDScriptFunction::OPCODE_JUMP);
 	match_continues_to_patch.back()->get().push_back(opcodes.size());
 	append(0);
 }
 
 void GDScriptByteCodeGenerator::write_breakpoint() {
-	append(GDScriptFunction::OPCODE_BREAKPOINT, 0);
+	append_opcode(GDScriptFunction::OPCODE_BREAKPOINT);
 }
 
 void GDScriptByteCodeGenerator::write_newline(int p_line) {
-	append(GDScriptFunction::OPCODE_LINE, 0);
+	append_opcode(GDScriptFunction::OPCODE_LINE);
 	append(p_line);
 	current_line = p_line;
 }
@@ -1611,23 +1611,23 @@ void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
 				Variant script = element_type.script_type;
 				int script_idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
 
-				append(GDScriptFunction::OPCODE_RETURN_TYPED_ARRAY, 2);
+				append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_ARRAY);
 				append(p_return_value);
 				append(script_idx);
 				append(element_type.kind == GDScriptDataType::BUILTIN ? element_type.builtin_type : Variant::OBJECT);
 				append(element_type.native_type);
 			} else if (function->return_type.kind == GDScriptDataType::BUILTIN && p_return_value.type.kind == GDScriptDataType::BUILTIN && function->return_type.builtin_type != p_return_value.type.builtin_type) {
 				// Add conversion.
-				append(GDScriptFunction::OPCODE_RETURN_TYPED_BUILTIN, 1);
+				append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_BUILTIN);
 				append(p_return_value);
 				append(function->return_type.builtin_type);
 			} else {
 				// Just assign.
-				append(GDScriptFunction::OPCODE_RETURN, 1);
+				append_opcode(GDScriptFunction::OPCODE_RETURN);
 				append(p_return_value);
 			}
 		} else {
-			append(GDScriptFunction::OPCODE_RETURN, 1);
+			append_opcode(GDScriptFunction::OPCODE_RETURN);
 			append(p_return_value);
 		}
 	} else {
@@ -1640,19 +1640,19 @@ void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
 					int script_idx = get_constant_pos(script);
 					script_idx |= (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
 
-					append(GDScriptFunction::OPCODE_RETURN_TYPED_ARRAY, 2);
+					append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_ARRAY);
 					append(p_return_value);
 					append(script_idx);
 					append(element_type.kind == GDScriptDataType::BUILTIN ? element_type.builtin_type : Variant::OBJECT);
 					append(element_type.native_type);
 				} else {
-					append(GDScriptFunction::OPCODE_RETURN_TYPED_BUILTIN, 1);
+					append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_BUILTIN);
 					append(p_return_value);
 					append(function->return_type.builtin_type);
 				}
 			} break;
 			case GDScriptDataType::NATIVE: {
-				append(GDScriptFunction::OPCODE_RETURN_TYPED_NATIVE, 2);
+				append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_NATIVE);
 				append(p_return_value);
 				int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[function->return_type.native_type];
 				Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
@@ -1664,7 +1664,7 @@ void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
 				Variant script = function->return_type.script_type;
 				int script_idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
 
-				append(GDScriptFunction::OPCODE_RETURN_TYPED_SCRIPT, 2);
+				append_opcode(GDScriptFunction::OPCODE_RETURN_TYPED_SCRIPT);
 				append(p_return_value);
 				append(script_idx);
 			} break;
@@ -1672,7 +1672,7 @@ void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
 				ERR_PRINT("Compiler bug: unresolved return.");
 
 				// Shouldn't get here, but fail-safe to a regular return;
-				append(GDScriptFunction::OPCODE_RETURN, 1);
+				append_opcode(GDScriptFunction::OPCODE_RETURN);
 				append(p_return_value);
 			} break;
 		}
@@ -1680,7 +1680,7 @@ void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
 }
 
 void GDScriptByteCodeGenerator::write_assert(const Address &p_test, const Address &p_message) {
-	append(GDScriptFunction::OPCODE_ASSERT, 2);
+	append_opcode(GDScriptFunction::OPCODE_ASSERT);
 	append(p_test);
 	append(p_message);
 }
diff --git a/modules/gdscript/gdscript_byte_codegen.h b/modules/gdscript/gdscript_byte_codegen.h
index 7dd51845df16..87772824f642 100644
--- a/modules/gdscript/gdscript_byte_codegen.h
+++ b/modules/gdscript/gdscript_byte_codegen.h
@@ -331,8 +331,13 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
 		return -1; // Unreachable.
 	}
 
-	void append(GDScriptFunction::Opcode p_code, int p_argument_count) {
-		opcodes.push_back((p_code & GDScriptFunction::INSTR_MASK) | (p_argument_count << GDScriptFunction::INSTR_BITS));
+	void append_opcode(GDScriptFunction::Opcode p_code) {
+		opcodes.push_back(p_code);
+	}
+
+	void append_opcode_and_argcount(GDScriptFunction::Opcode p_code, int p_argument_count) {
+		opcodes.push_back(p_code);
+		opcodes.push_back(p_argument_count);
 		instr_args_max = MAX(instr_args_max, p_argument_count);
 	}
 
diff --git a/modules/gdscript/gdscript_disassembler.cpp b/modules/gdscript/gdscript_disassembler.cpp
index b5a209c80506..5881adcd5b42 100644
--- a/modules/gdscript/gdscript_disassembler.cpp
+++ b/modules/gdscript/gdscript_disassembler.cpp
@@ -104,8 +104,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 		text += ": ";
 
 		// This makes the compiler complain if some opcode is unchecked in the switch.
-		Opcode opcode = Opcode(_code_ptr[ip] & INSTR_MASK);
-		int instr_var_args = (_code_ptr[ip] & INSTR_ARGS_MASK) >> INSTR_BITS;
+		Opcode opcode = Opcode(_code_ptr[ip]);
 
 		switch (opcode) {
 			case OPCODE_OPERATOR: {
@@ -372,6 +371,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr += 4;
 			} break;
 			case OPCODE_CONSTRUCT: {
+				int instr_var_args = _code_ptr[++ip];
 				Variant::Type t = Variant::Type(_code_ptr[ip + 3 + instr_var_args]);
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 
@@ -391,6 +391,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 3 + instr_var_args;
 			} break;
 			case OPCODE_CONSTRUCT_VALIDATED: {
+				int instr_var_args = _code_ptr[++ip];
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 
 				text += "construct validated ";
@@ -409,6 +410,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 3 + instr_var_args;
 			} break;
 			case OPCODE_CONSTRUCT_ARRAY: {
+				int instr_var_args = _code_ptr[++ip];
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 				text += " make_array ";
 				text += DADDR(1 + argc);
@@ -426,6 +428,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr += 3 + argc;
 			} break;
 			case OPCODE_CONSTRUCT_TYPED_ARRAY: {
+				int instr_var_args = _code_ptr[++ip];
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 
 				Ref<Script> script_type = get_constant(_code_ptr[ip + argc + 2]);
@@ -460,6 +463,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr += 3 + argc;
 			} break;
 			case OPCODE_CONSTRUCT_DICTIONARY: {
+				int instr_var_args = _code_ptr[++ip];
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 				text += "make_dict ";
 				text += DADDR(1 + argc * 2);
@@ -481,8 +485,10 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 			case OPCODE_CALL:
 			case OPCODE_CALL_RETURN:
 			case OPCODE_CALL_ASYNC: {
-				bool ret = (_code_ptr[ip] & INSTR_MASK) == OPCODE_CALL_RETURN;
-				bool async = (_code_ptr[ip] & INSTR_MASK) == OPCODE_CALL_ASYNC;
+				bool ret = (_code_ptr[ip]) == OPCODE_CALL_RETURN;
+				bool async = (_code_ptr[ip]) == OPCODE_CALL_ASYNC;
+
+				int instr_var_args = _code_ptr[++ip];
 
 				if (ret) {
 					text += "call-ret ";
@@ -513,7 +519,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 			} break;
 			case OPCODE_CALL_METHOD_BIND:
 			case OPCODE_CALL_METHOD_BIND_RET: {
-				bool ret = (_code_ptr[ip] & INSTR_MASK) == OPCODE_CALL_METHOD_BIND_RET;
+				bool ret = (_code_ptr[ip]) == OPCODE_CALL_METHOD_BIND_RET;
+				int instr_var_args = _code_ptr[++ip];
 
 				if (ret) {
 					text += "call-method_bind-ret ";
@@ -543,6 +550,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 5 + argc;
 			} break;
 			case OPCODE_CALL_BUILTIN_STATIC: {
+				int instr_var_args = _code_ptr[++ip];
 				Variant::Type type = (Variant::Type)_code_ptr[ip + 1 + instr_var_args];
 				int argc = _code_ptr[ip + 3 + instr_var_args];
 
@@ -565,6 +573,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr += 5 + argc;
 			} break;
 			case OPCODE_CALL_NATIVE_STATIC: {
+				int instr_var_args = _code_ptr[++ip];
 				MethodBind *method = _methods_ptr[_code_ptr[ip + 1 + instr_var_args]];
 				int argc = _code_ptr[ip + 2 + instr_var_args];
 
@@ -587,6 +596,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr += 4 + argc;
 			} break;
 			case OPCODE_CALL_PTRCALL_NO_RETURN: {
+				int instr_var_args = _code_ptr[++ip];
+
 				text += "call-ptrcall (no return) ";
 
 				MethodBind *method = _methods_ptr[_code_ptr[ip + 2 + instr_var_args]];
@@ -610,6 +621,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 
 #define DISASSEMBLE_PTRCALL(m_type)                                            \
 	case OPCODE_CALL_PTRCALL_##m_type: {                                       \
+		int instr_var_args = _code_ptr[++ip];                                  \
 		text += "call-ptrcall (return ";                                       \
 		text += #m_type;                                                       \
 		text += ") ";                                                          \
@@ -667,6 +679,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				DISASSEMBLE_PTRCALL(PACKED_COLOR_ARRAY);
 
 			case OPCODE_CALL_BUILTIN_TYPE_VALIDATED: {
+				int instr_var_args = _code_ptr[++ip];
 				int argc = _code_ptr[ip + 1 + instr_var_args];
 
 				text += "call-builtin-method validated ";
@@ -689,6 +702,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 5 + argc;
 			} break;
 			case OPCODE_CALL_UTILITY: {
+				int instr_var_args = _code_ptr[++ip];
+
 				text += "call-utility ";
 
 				int argc = _code_ptr[ip + 1 + instr_var_args];
@@ -708,6 +723,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 4 + argc;
 			} break;
 			case OPCODE_CALL_UTILITY_VALIDATED: {
+				int instr_var_args = _code_ptr[++ip];
+
 				text += "call-utility ";
 
 				int argc = _code_ptr[ip + 1 + instr_var_args];
@@ -727,6 +744,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 4 + argc;
 			} break;
 			case OPCODE_CALL_GDSCRIPT_UTILITY: {
+				int instr_var_args = _code_ptr[++ip];
+
 				text += "call-gscript-utility ";
 
 				int argc = _code_ptr[ip + 1 + instr_var_args];
@@ -746,6 +765,8 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 4 + argc;
 			} break;
 			case OPCODE_CALL_SELF_BASE: {
+				int instr_var_args = _code_ptr[++ip];
+
 				text += "call-self-base ";
 
 				int argc = _code_ptr[ip + 1 + instr_var_args];
@@ -777,6 +798,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 2;
 			} break;
 			case OPCODE_CREATE_LAMBDA: {
+				int instr_var_args = _code_ptr[++ip];
 				int captures_count = _code_ptr[ip + 1 + instr_var_args];
 				GDScriptFunction *lambda = _lambdas_ptr[_code_ptr[ip + 2 + instr_var_args]];
 
@@ -796,6 +818,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				incr = 3 + captures_count;
 			} break;
 			case OPCODE_CREATE_SELF_LAMBDA: {
+				int instr_var_args = _code_ptr[++ip];
 				int captures_count = _code_ptr[ip + 1 + instr_var_args];
 				GDScriptFunction *lambda = _lambdas_ptr[_code_ptr[ip + 2 + instr_var_args]];
 
diff --git a/modules/gdscript/gdscript_function.h b/modules/gdscript/gdscript_function.h
index 6e5f7a8520ab..25f771d69835 100644
--- a/modules/gdscript/gdscript_function.h
+++ b/modules/gdscript/gdscript_function.h
@@ -405,6 +405,7 @@ public:
 		ADDR_TYPE_STACK = 0,
 		ADDR_TYPE_CONSTANT = 1,
 		ADDR_TYPE_MEMBER = 2,
+		ADDR_TYPE_MAX = 3,
 	};
 
 	enum FixedAddresses {
@@ -416,12 +417,6 @@ public:
 		ADDR_NIL = ADDR_STACK_NIL | (ADDR_TYPE_STACK << ADDR_BITS),
 	};
 
-	enum Instruction {
-		INSTR_BITS = 20,
-		INSTR_MASK = ((1 << INSTR_BITS) - 1),
-		INSTR_ARGS_MASK = ~INSTR_MASK,
-	};
-
 	struct StackDebug {
 		int line;
 		int pos;
@@ -514,7 +509,6 @@ private:
 
 	Variant _get_default_variant_for_data_type(const GDScriptDataType &p_data_type);
 
-	_FORCE_INLINE_ Variant *_get_variant(int p_address, GDScriptInstance *p_instance, Variant *p_stack, String &r_error) const;
 	_FORCE_INLINE_ String _get_call_error(const Callable::CallError &p_err, const String &p_where, const Variant **argptrs) const;
 
 	friend class GDScriptLanguage;
diff --git a/modules/gdscript/gdscript_vm.cpp b/modules/gdscript/gdscript_vm.cpp
index fdcc0625d732..c8dcb531fa01 100644
--- a/modules/gdscript/gdscript_vm.cpp
+++ b/modules/gdscript/gdscript_vm.cpp
@@ -35,39 +35,6 @@
 #include "gdscript.h"
 #include "gdscript_lambda_callable.h"
 
-Variant *GDScriptFunction::_get_variant(int p_address, GDScriptInstance *p_instance, Variant *p_stack, String &r_error) const {
-	int address = p_address & ADDR_MASK;
-
-	//sequential table (jump table generated by compiler)
-	switch ((p_address & ADDR_TYPE_MASK) >> ADDR_BITS) {
-		case ADDR_TYPE_STACK: {
-#ifdef DEBUG_ENABLED
-			ERR_FAIL_INDEX_V(address, _stack_size, nullptr);
-#endif
-			return &p_stack[address];
-		} break;
-		case ADDR_TYPE_CONSTANT: {
-#ifdef DEBUG_ENABLED
-			ERR_FAIL_INDEX_V(address, _constant_count, nullptr);
-#endif
-			return &_constants_ptr[address];
-		} break;
-		case ADDR_TYPE_MEMBER: {
-#ifdef DEBUG_ENABLED
-			if (unlikely(!p_instance)) {
-				r_error = "Cannot access member without instance.";
-				return nullptr;
-			}
-#endif
-			//member indexing is O(1)
-			return &p_instance->members.write[address];
-		} break;
-	}
-
-	ERR_FAIL_V_MSG(nullptr, "Bad code! (unknown addressing mode).");
-	return nullptr;
-}
-
 #ifdef DEBUG_ENABLED
 static String _get_script_name(const Ref<Script> p_script) {
 	Ref<GDScript> gdscript = p_script;
@@ -413,14 +380,19 @@ void (*type_init_function_table[])(Variant *) = {
 
 #define OPCODE(m_op) \
 	m_op:
-#define OPCODE_WHILE(m_test) \
-	OPSWHILE:
+#define OPCODE_WHILE(m_test)
 #define OPCODES_END \
 	OPSEXIT:
 #define OPCODES_OUT \
 	OPSOUT:
-#define DISPATCH_OPCODE goto OPSWHILE
 #define OPCODE_SWITCH(m_test) goto *switch_table_ops[m_test];
+#ifdef DEBUG_ENABLED
+#define DISPATCH_OPCODE          \
+	last_opcode = _code_ptr[ip]; \
+	goto *switch_table_ops[last_opcode]
+#else
+#define DISPATCH_OPCODE goto *switch_table_ops[_code_ptr[ip]]
+#endif
 #define OPCODE_BREAK goto OPSEXIT
 #define OPCODE_OUT goto OPSOUT
 #else
@@ -607,21 +579,52 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #define CHECK_SPACE(m_space) \
 	GD_ERR_BREAK((ip + m_space) > _code_size)
 
-#define GET_VARIANT_PTR(m_v, m_code_ofs)                                         \
-	Variant *m_v;                                                                \
-	m_v = _get_variant(_code_ptr[ip + m_code_ofs], p_instance, stack, err_text); \
-	if (unlikely(!m_v))                                                          \
-		OPCODE_BREAK;
+#define GET_VARIANT_PTR(m_v, m_code_ofs)                                                            \
+	Variant *m_v;                                                                                   \
+	{                                                                                               \
+		int address = _code_ptr[ip + 1 + (m_code_ofs)];                                             \
+		int address_type = (address & ADDR_TYPE_MASK) >> ADDR_BITS;                                 \
+		if (unlikely(address_type < 0 || address_type >= ADDR_TYPE_MAX)) {                          \
+			err_text = "Bad address type.";                                                         \
+			OPCODE_BREAK;                                                                           \
+		}                                                                                           \
+		int address_index = address & ADDR_MASK;                                                    \
+		if (unlikely(address_index < 0 || address_index >= variant_address_limits[address_type])) { \
+			if (address_type == ADDR_TYPE_MEMBER && !p_instance) {                                  \
+				err_text = "Cannot access member without instance.";                                \
+			} else {                                                                                \
+				err_text = "Bad address index.";                                                    \
+			}                                                                                       \
+			OPCODE_BREAK;                                                                           \
+		}                                                                                           \
+		m_v = &variant_addresses[address_type][address_index];                                      \
+		if (unlikely(!m_v))                                                                         \
+			OPCODE_BREAK;                                                                           \
+	}
 
 #else
 #define GD_ERR_BREAK(m_cond)
 #define CHECK_SPACE(m_space)
-#define GET_VARIANT_PTR(m_v, m_code_ofs) \
-	Variant *m_v;                        \
-	m_v = _get_variant(_code_ptr[ip + m_code_ofs], p_instance, stack, err_text);
+
+#define GET_VARIANT_PTR(m_v, m_code_ofs)                                                        \
+	Variant *m_v;                                                                               \
+	{                                                                                           \
+		int address = _code_ptr[ip + 1 + (m_code_ofs)];                                         \
+		m_v = &variant_addresses[(address & ADDR_TYPE_MASK) >> ADDR_BITS][address & ADDR_MASK]; \
+		if (unlikely(!m_v))                                                                     \
+			OPCODE_BREAK;                                                                       \
+	}
 
 #endif
 
+#define LOAD_INSTRUCTION_ARGS                   \
+	int instr_arg_count = _code_ptr[ip + 1];    \
+	for (int i = 0; i < instr_arg_count; i++) { \
+		GET_VARIANT_PTR(v, i + 1);              \
+		instruction_args[i] = v;                \
+	}                                           \
+	ip += 1; // Offset to skip instruction argcount.
+
 #define GET_INSTRUCTION_ARG(m_v, m_idx) \
 	Variant *m_v = instruction_args[m_idx]
 
@@ -639,21 +642,20 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 	bool exit_ok = false;
 	bool awaited = false;
 #endif
+#ifdef DEBUG_ENABLED
+	int variant_address_limits[ADDR_TYPE_MAX] = { _stack_size, _constant_count, p_instance ? p_instance->members.size() : 0 };
+#endif
+
+	Variant *variant_addresses[ADDR_TYPE_MAX] = { stack, _constants_ptr, p_instance ? p_instance->members.ptrw() : nullptr };
 
 #ifdef DEBUG_ENABLED
 	OPCODE_WHILE(ip < _code_size) {
-		int last_opcode = _code_ptr[ip] & INSTR_MASK;
+		int last_opcode = _code_ptr[ip];
 #else
 	OPCODE_WHILE(true) {
 #endif
-		// Load arguments for the instruction before each instruction.
-		int instr_arg_count = ((_code_ptr[ip]) & INSTR_ARGS_MASK) >> INSTR_BITS;
-		for (int i = 0; i < instr_arg_count; i++) {
-			GET_VARIANT_PTR(v, i + 1);
-			instruction_args[i] = v;
-		}
 
-		OPCODE_SWITCH(_code_ptr[ip] & INSTR_MASK) {
+		OPCODE_SWITCH(_code_ptr[ip]) {
 			OPCODE(OPCODE_OPERATOR) {
 				CHECK_SPACE(5);
 
@@ -661,9 +663,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				Variant::Operator op = (Variant::Operator)_code_ptr[ip + 4];
 				GD_ERR_BREAK(op >= Variant::OP_MAX);
 
-				GET_INSTRUCTION_ARG(a, 0);
-				GET_INSTRUCTION_ARG(b, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(a, 0);
+				GET_VARIANT_PTR(b, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 #ifdef DEBUG_ENABLED
 
@@ -696,9 +698,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				GD_ERR_BREAK(operator_idx < 0 || operator_idx >= _operator_funcs_count);
 				Variant::ValidatedOperatorEvaluator operator_func = _operator_funcs_ptr[operator_idx];
 
-				GET_INSTRUCTION_ARG(a, 0);
-				GET_INSTRUCTION_ARG(b, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(a, 0);
+				GET_VARIANT_PTR(b, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 				operator_func(a, b, dst);
 
@@ -709,9 +711,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_EXTENDS_TEST) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(a, 0);
-				GET_INSTRUCTION_ARG(b, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(a, 0);
+				GET_VARIANT_PTR(b, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 #ifdef DEBUG_ENABLED
 				if (b->get_type() != Variant::OBJECT || b->operator Object *() == nullptr) {
@@ -784,8 +786,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_IS_BUILTIN) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(value, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
+				GET_VARIANT_PTR(value, 0);
+				GET_VARIANT_PTR(dst, 1);
 				Variant::Type var_type = (Variant::Type)_code_ptr[ip + 3];
 
 				GD_ERR_BREAK(var_type < 0 || var_type >= Variant::VARIANT_MAX);
@@ -798,9 +800,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_SET_KEYED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(index, 1);
-				GET_INSTRUCTION_ARG(value, 2);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(index, 1);
+				GET_VARIANT_PTR(value, 2);
 
 				bool valid;
 				dst->set(*index, *value, &valid);
@@ -824,9 +826,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_SET_KEYED_VALIDATED) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(index, 1);
-				GET_INSTRUCTION_ARG(value, 2);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(index, 1);
+				GET_VARIANT_PTR(value, 2);
 
 				int index_setter = _code_ptr[ip + 4];
 				GD_ERR_BREAK(index_setter < 0 || index_setter >= _keyed_setters_count);
@@ -854,9 +856,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_SET_INDEXED_VALIDATED) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(index, 1);
-				GET_INSTRUCTION_ARG(value, 2);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(index, 1);
+				GET_VARIANT_PTR(value, 2);
 
 				int index_setter = _code_ptr[ip + 4];
 				GD_ERR_BREAK(index_setter < 0 || index_setter >= _indexed_setters_count);
@@ -886,9 +888,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_GET_KEYED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(index, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(index, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 				bool valid;
 #ifdef DEBUG_ENABLED
@@ -918,9 +920,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_GET_KEYED_VALIDATED) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(key, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(key, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 				int index_getter = _code_ptr[ip + 4];
 				GD_ERR_BREAK(index_getter < 0 || index_getter >= _keyed_getters_count);
@@ -954,9 +956,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_GET_INDEXED_VALIDATED) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(index, 1);
-				GET_INSTRUCTION_ARG(dst, 2);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(index, 1);
+				GET_VARIANT_PTR(dst, 2);
 
 				int index_getter = _code_ptr[ip + 4];
 				GD_ERR_BREAK(index_getter < 0 || index_getter >= _indexed_getters_count);
@@ -986,8 +988,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_SET_NAMED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(value, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(value, 1);
 
 				int indexname = _code_ptr[ip + 3];
 
@@ -1011,8 +1013,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_SET_NAMED_VALIDATED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(value, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(value, 1);
 
 				int index_setter = _code_ptr[ip + 3];
 				GD_ERR_BREAK(index_setter < 0 || index_setter >= _setters_count);
@@ -1026,8 +1028,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_GET_NAMED) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(dst, 1);
 
 				int indexname = _code_ptr[ip + 3];
 
@@ -1056,8 +1058,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_GET_NAMED_VALIDATED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(dst, 1);
 
 				int index_getter = _code_ptr[ip + 3];
 				GD_ERR_BREAK(index_getter < 0 || index_getter >= _getters_count);
@@ -1070,7 +1072,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_SET_MEMBER) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(src, 0);
+				GET_VARIANT_PTR(src, 0);
 				int indexname = _code_ptr[ip + 2];
 				GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count);
 				const StringName *index = &_global_names_ptr[indexname];
@@ -1094,7 +1096,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_GET_MEMBER) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(dst, 0);
+				GET_VARIANT_PTR(dst, 0);
 				int indexname = _code_ptr[ip + 2];
 				GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count);
 				const StringName *index = &_global_names_ptr[indexname];
@@ -1113,8 +1115,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(src, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(src, 1);
 
 				*dst = *src;
 
@@ -1124,7 +1126,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_TRUE) {
 				CHECK_SPACE(2);
-				GET_INSTRUCTION_ARG(dst, 0);
+				GET_VARIANT_PTR(dst, 0);
 
 				*dst = true;
 
@@ -1134,7 +1136,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_FALSE) {
 				CHECK_SPACE(2);
-				GET_INSTRUCTION_ARG(dst, 0);
+				GET_VARIANT_PTR(dst, 0);
 
 				*dst = false;
 
@@ -1144,8 +1146,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_TYPED_BUILTIN) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(src, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(src, 1);
 
 				Variant::Type var_type = (Variant::Type)_code_ptr[ip + 3];
 				GD_ERR_BREAK(var_type < 0 || var_type >= Variant::VARIANT_MAX);
@@ -1173,8 +1175,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_TYPED_ARRAY) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(src, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(src, 1);
 
 				Array *dst_arr = VariantInternal::get_array(dst);
 
@@ -1198,11 +1200,11 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_TYPED_NATIVE) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(src, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(src, 1);
 
 #ifdef DEBUG_ENABLED
-				GET_INSTRUCTION_ARG(type, 2);
+				GET_VARIANT_PTR(type, 2);
 				GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(type->operator Object *());
 				GD_ERR_BREAK(!nc);
 				if (src->get_type() != Variant::OBJECT && src->get_type() != Variant::NIL) {
@@ -1226,11 +1228,11 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_ASSIGN_TYPED_SCRIPT) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(dst, 0);
-				GET_INSTRUCTION_ARG(src, 1);
+				GET_VARIANT_PTR(dst, 0);
+				GET_VARIANT_PTR(src, 1);
 
 #ifdef DEBUG_ENABLED
-				GET_INSTRUCTION_ARG(type, 2);
+				GET_VARIANT_PTR(type, 2);
 				Script *base_type = Object::cast_to<Script>(type->operator Object *());
 
 				GD_ERR_BREAK(!base_type);
@@ -1275,8 +1277,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_CAST_TO_BUILTIN) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(dst, 1);
 				Variant::Type to_type = (Variant::Type)_code_ptr[ip + 3];
 
 				GD_ERR_BREAK(to_type < 0 || to_type >= Variant::VARIANT_MAX);
@@ -1304,9 +1306,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_CAST_TO_NATIVE) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
-				GET_INSTRUCTION_ARG(to_type, 2);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(dst, 1);
+				GET_VARIANT_PTR(to_type, 2);
 
 				GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(to_type->operator Object *());
 				GD_ERR_BREAK(!nc);
@@ -1335,9 +1337,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_CAST_TO_SCRIPT) {
 				CHECK_SPACE(4);
-				GET_INSTRUCTION_ARG(src, 0);
-				GET_INSTRUCTION_ARG(dst, 1);
-				GET_INSTRUCTION_ARG(to_type, 2);
+				GET_VARIANT_PTR(src, 0);
+				GET_VARIANT_PTR(dst, 1);
+				GET_VARIANT_PTR(to_type, 2);
 
 				Script *base_type = Object::cast_to<Script>(to_type->operator Object *());
 
@@ -1383,6 +1385,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CONSTRUCT) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(2 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1390,6 +1393,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				int argc = _code_ptr[ip + 1];
 
 				Variant::Type t = Variant::Type(_code_ptr[ip + 2]);
+
 				Variant **argptrs = instruction_args;
 
 				GET_INSTRUCTION_ARG(dst, argc);
@@ -1409,8 +1413,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CONSTRUCT_VALIDATED) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(2 + instr_arg_count);
-
 				ip += instr_arg_count;
 
 				int argc = _code_ptr[ip + 1];
@@ -1430,6 +1434,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CONSTRUCT_ARRAY) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(1 + instr_arg_count);
 				ip += instr_arg_count;
 
@@ -1451,6 +1456,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CONSTRUCT_TYPED_ARRAY) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 				ip += instr_arg_count;
 
@@ -1480,6 +1486,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CONSTRUCT_DICTIONARY) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(2 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1504,11 +1511,12 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_CALL_ASYNC)
 			OPCODE(OPCODE_CALL_RETURN)
 			OPCODE(OPCODE_CALL) {
-				CHECK_SPACE(3 + instr_arg_count);
-				bool call_ret = (_code_ptr[ip] & INSTR_MASK) != OPCODE_CALL;
+				bool call_ret = (_code_ptr[ip]) != OPCODE_CALL;
 #ifdef DEBUG_ENABLED
-				bool call_async = (_code_ptr[ip] & INSTR_MASK) == OPCODE_CALL_ASYNC;
+				bool call_async = (_code_ptr[ip]) == OPCODE_CALL_ASYNC;
 #endif
+				LOAD_INSTRUCTION_ARGS
+				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
 
@@ -1603,8 +1611,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_CALL_METHOD_BIND)
 			OPCODE(OPCODE_CALL_METHOD_BIND_RET) {
+				bool call_ret = (_code_ptr[ip]) == OPCODE_CALL_METHOD_BIND_RET;
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
-				bool call_ret = (_code_ptr[ip] & INSTR_MASK) == OPCODE_CALL_METHOD_BIND_RET;
 
 				ip += instr_arg_count;
 
@@ -1682,6 +1691,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_BUILTIN_STATIC) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(4 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1727,6 +1737,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_NATIVE_STATIC) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1770,6 +1781,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #ifdef DEBUG_ENABLED
 #define OPCODE_CALL_PTR(m_type)                                                      \
 	OPCODE(OPCODE_CALL_PTRCALL_##m_type) {                                           \
+		LOAD_INSTRUCTION_ARGS                                                        \
 		CHECK_SPACE(3 + instr_arg_count);                                            \
 		ip += instr_arg_count;                                                       \
 		int argc = _code_ptr[ip + 1];                                                \
@@ -1808,6 +1820,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #else
 #define OPCODE_CALL_PTR(m_type)                                                   \
 	OPCODE(OPCODE_CALL_PTRCALL_##m_type) {                                        \
+		LOAD_INSTRUCTION_ARGS                                                     \
 		CHECK_SPACE(3 + instr_arg_count);                                         \
 		ip += instr_arg_count;                                                    \
 		int argc = _code_ptr[ip + 1];                                             \
@@ -1865,6 +1878,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE_CALL_PTR(PACKED_VECTOR3_ARRAY);
 			OPCODE_CALL_PTR(PACKED_COLOR_ARRAY);
 			OPCODE(OPCODE_CALL_PTRCALL_OBJECT) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1919,6 +1933,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			}
 			DISPATCH_OPCODE;
 			OPCODE(OPCODE_CALL_PTRCALL_NO_RETURN) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -1971,6 +1986,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_BUILTIN_TYPE_VALIDATED) {
+				LOAD_INSTRUCTION_ARGS
+
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2005,6 +2022,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_UTILITY) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2039,6 +2057,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_UTILITY_VALIDATED) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2060,6 +2079,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_GDSCRIPT_UTILITY) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2095,6 +2115,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CALL_SELF_BASE) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(3 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2164,7 +2185,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				CHECK_SPACE(2);
 
 				// Do the one-shot connect.
-				GET_INSTRUCTION_ARG(argobj, 0);
+				GET_VARIANT_PTR(argobj, 0);
 
 				Signal sig;
 				bool is_signal = true;
@@ -2191,7 +2212,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 					if (result.get_type() != Variant::SIGNAL) {
 						// Not async, return immediately using the target from OPCODE_AWAIT_RESUME.
-						GET_VARIANT_PTR(target, 3);
+						GET_VARIANT_PTR(target, 2);
 						*target = result;
 						ip += 4; // Skip OPCODE_AWAIT_RESUME and its data.
 						is_signal = false;
@@ -2257,13 +2278,14 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					OPCODE_BREAK;
 				}
 #endif
-				GET_INSTRUCTION_ARG(result, 0);
+				GET_VARIANT_PTR(result, 0);
 				*result = p_state->result;
 				ip += 2;
 			}
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CREATE_LAMBDA) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(2 + instr_arg_count);
 
 				ip += instr_arg_count;
@@ -2292,6 +2314,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			DISPATCH_OPCODE;
 
 			OPCODE(OPCODE_CREATE_SELF_LAMBDA) {
+				LOAD_INSTRUCTION_ARGS
 				CHECK_SPACE(2 + instr_arg_count);
 
 				GD_ERR_BREAK(p_instance == nullptr);
@@ -2338,7 +2361,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_JUMP_IF) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(test, 0);
+				GET_VARIANT_PTR(test, 0);
 
 				bool result = test->booleanize();
 
@@ -2355,7 +2378,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_JUMP_IF_NOT) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(test, 0);
+				GET_VARIANT_PTR(test, 0);
 
 				bool result = test->booleanize();
 
@@ -2378,7 +2401,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_JUMP_IF_SHARED) {
 				CHECK_SPACE(3);
 
-				GET_INSTRUCTION_ARG(val, 0);
+				GET_VARIANT_PTR(val, 0);
 
 				if (val->is_shared()) {
 					int to = _code_ptr[ip + 2];
@@ -2392,7 +2415,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_RETURN) {
 				CHECK_SPACE(2);
-				GET_INSTRUCTION_ARG(r, 0);
+				GET_VARIANT_PTR(r, 0);
 				retvalue = *r;
 #ifdef DEBUG_ENABLED
 				exit_ok = true;
@@ -2402,7 +2425,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_RETURN_TYPED_BUILTIN) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(r, 0);
+				GET_VARIANT_PTR(r, 0);
 
 				Variant::Type ret_type = (Variant::Type)_code_ptr[ip + 2];
 				GD_ERR_BREAK(ret_type < 0 || ret_type >= Variant::VARIANT_MAX);
@@ -2433,9 +2456,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_RETURN_TYPED_ARRAY) {
 				CHECK_SPACE(5);
-				GET_INSTRUCTION_ARG(r, 0);
+				GET_VARIANT_PTR(r, 0);
 
-				GET_INSTRUCTION_ARG(script_type, 1);
+				GET_VARIANT_PTR(script_type, 1);
 				Variant::Type builtin_type = (Variant::Type)_code_ptr[ip + 3];
 				int native_type_idx = _code_ptr[ip + 4];
 				GD_ERR_BREAK(native_type_idx < 0 || native_type_idx >= _global_names_count);
@@ -2474,9 +2497,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_RETURN_TYPED_NATIVE) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(r, 0);
+				GET_VARIANT_PTR(r, 0);
 
-				GET_INSTRUCTION_ARG(type, 1);
+				GET_VARIANT_PTR(type, 1);
 				GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(type->operator Object *());
 				GD_ERR_BREAK(!nc);
 
@@ -2514,9 +2537,9 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 			OPCODE(OPCODE_RETURN_TYPED_SCRIPT) {
 				CHECK_SPACE(3);
-				GET_INSTRUCTION_ARG(r, 0);
+				GET_VARIANT_PTR(r, 0);
 
-				GET_INSTRUCTION_ARG(type, 1);
+				GET_VARIANT_PTR(type, 1);
 				Script *base_type = Object::cast_to<Script>(type->operator Object *());
 				GD_ERR_BREAK(!base_type);
 
@@ -2580,8 +2603,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN) {
 				CHECK_SPACE(8); // Space for this and a regular iterate.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				bool valid;
 				if (!container->iter_init(*counter, valid)) {
@@ -2595,7 +2618,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 
 					*iterator = container->iter_get(*counter, valid);
 #ifdef DEBUG_ENABLED
@@ -2612,8 +2635,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_INT) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				int64_t size = *VariantInternal::get_int(container);
 
@@ -2621,7 +2644,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_int(counter) = 0;
 
 				if (size > 0) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::INT);
 					*VariantInternal::get_int(iterator) = 0;
 
@@ -2639,8 +2662,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_FLOAT) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				double size = *VariantInternal::get_float(container);
 
@@ -2648,7 +2671,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_float(counter) = 0.0;
 
 				if (size > 0) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::FLOAT);
 					*VariantInternal::get_float(iterator) = 0;
 
@@ -2666,8 +2689,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_VECTOR2) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Vector2 *bounds = VariantInternal::get_vector2(container);
 
@@ -2675,7 +2698,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_float(counter) = bounds->x;
 
 				if (bounds->x < bounds->y) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::FLOAT);
 					*VariantInternal::get_float(iterator) = bounds->x;
 
@@ -2693,8 +2716,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_VECTOR2I) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Vector2i *bounds = VariantInternal::get_vector2i(container);
 
@@ -2702,7 +2725,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_int(counter) = bounds->x;
 
 				if (bounds->x < bounds->y) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::INT);
 					*VariantInternal::get_int(iterator) = bounds->x;
 
@@ -2720,8 +2743,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_VECTOR3) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Vector3 *bounds = VariantInternal::get_vector3(container);
 				double from = bounds->x;
@@ -2734,7 +2757,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				bool do_continue = from == to ? false : (from < to ? step > 0 : step < 0);
 
 				if (do_continue) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::FLOAT);
 					*VariantInternal::get_float(iterator) = from;
 
@@ -2752,8 +2775,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_VECTOR3I) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Vector3i *bounds = VariantInternal::get_vector3i(container);
 				int64_t from = bounds->x;
@@ -2766,7 +2789,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				bool do_continue = from == to ? false : (from < to ? step > 0 : step < 0);
 
 				if (do_continue) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::INT);
 					*VariantInternal::get_int(iterator) = from;
 
@@ -2784,8 +2807,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_STRING) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				String *str = VariantInternal::get_string(container);
 
@@ -2793,7 +2816,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_int(counter) = 0;
 
 				if (!str->is_empty()) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					VariantInternal::initialize(iterator, Variant::STRING);
 					*VariantInternal::get_string(iterator) = str->substr(0, 1);
 
@@ -2811,14 +2834,14 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_DICTIONARY) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Dictionary *dict = VariantInternal::get_dictionary(container);
 				const Variant *next = dict->next(nullptr);
 
 				if (!dict->is_empty()) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*counter = *next;
 					*iterator = *next;
 
@@ -2836,8 +2859,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_ARRAY) {
 				CHECK_SPACE(8); // Check space for iterate instruction too.
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				Array *array = VariantInternal::get_array(container);
 
@@ -2845,7 +2868,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				*VariantInternal::get_int(counter) = 0;
 
 				if (!array->is_empty()) {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*iterator = array->get(0);
 
 					// Skip regular iterate.
@@ -2862,13 +2885,13 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #define OPCODE_ITERATE_BEGIN_PACKED_ARRAY(m_var_type, m_elem_type, m_get_func, m_var_ret_type, m_ret_type, m_ret_get_func) \
 	OPCODE(OPCODE_ITERATE_BEGIN_PACKED_##m_var_type##_ARRAY) {                                                             \
 		CHECK_SPACE(8);                                                                                                    \
-		GET_INSTRUCTION_ARG(counter, 0);                                                                                   \
-		GET_INSTRUCTION_ARG(container, 1);                                                                                 \
+		GET_VARIANT_PTR(counter, 0);                                                                                       \
+		GET_VARIANT_PTR(container, 1);                                                                                     \
 		Vector<m_elem_type> *array = VariantInternal::m_get_func(container);                                               \
 		VariantInternal::initialize(counter, Variant::INT);                                                                \
 		*VariantInternal::get_int(counter) = 0;                                                                            \
 		if (!array->is_empty()) {                                                                                          \
-			GET_INSTRUCTION_ARG(iterator, 2);                                                                              \
+			GET_VARIANT_PTR(iterator, 2);                                                                                  \
 			VariantInternal::initialize(iterator, Variant::m_var_ret_type);                                                \
 			m_ret_type *it = VariantInternal::m_ret_get_func(iterator);                                                    \
 			*it = array->get(0);                                                                                           \
@@ -2894,8 +2917,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_BEGIN_OBJECT) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 #ifdef DEBUG_ENABLED
 				bool freed = false;
@@ -2933,7 +2956,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*iterator = obj->callp(CoreStringNames::get_singleton()->_iter_get, (const Variant **)args, 1, ce);
 #ifdef DEBUG_ENABLED
 					if (ce.error != Callable::CallError::CALL_OK) {
@@ -2950,8 +2973,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				bool valid;
 				if (!container->iter_next(*counter, valid)) {
@@ -2965,7 +2988,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 
 					*iterator = container->iter_get(*counter, valid);
 #ifdef DEBUG_ENABLED
@@ -2982,8 +3005,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_INT) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				int64_t size = *VariantInternal::get_int(container);
 				int64_t *count = VariantInternal::get_int(counter);
@@ -2995,7 +3018,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_int(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3006,8 +3029,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_FLOAT) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				double size = *VariantInternal::get_float(container);
 				double *count = VariantInternal::get_float(counter);
@@ -3019,7 +3042,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_float(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3030,8 +3053,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_VECTOR2) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Vector2 *bounds = VariantInternal::get_vector2((const Variant *)container);
 				double *count = VariantInternal::get_float(counter);
@@ -3043,7 +3066,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_float(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3054,8 +3077,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_VECTOR2I) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Vector2i *bounds = VariantInternal::get_vector2i((const Variant *)container);
 				int64_t *count = VariantInternal::get_int(counter);
@@ -3067,7 +3090,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_int(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3078,8 +3101,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_VECTOR3) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Vector3 *bounds = VariantInternal::get_vector3((const Variant *)container);
 				double *count = VariantInternal::get_float(counter);
@@ -3091,7 +3114,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_float(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3102,8 +3125,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_VECTOR3I) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Vector3i *bounds = VariantInternal::get_vector3i((const Variant *)container);
 				int64_t *count = VariantInternal::get_int(counter);
@@ -3115,7 +3138,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_int(iterator) = *count;
 
 					ip += 5; // Loop again.
@@ -3126,8 +3149,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_STRING) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const String *str = VariantInternal::get_string((const Variant *)container);
 				int64_t *idx = VariantInternal::get_int(counter);
@@ -3138,7 +3161,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*VariantInternal::get_string(iterator) = str->substr(*idx, 1);
 
 					ip += 5; // Loop again.
@@ -3149,8 +3172,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_DICTIONARY) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Dictionary *dict = VariantInternal::get_dictionary((const Variant *)container);
 				const Variant *next = dict->next(counter);
@@ -3160,7 +3183,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*counter = *next;
 					*iterator = *next;
 
@@ -3172,8 +3195,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_ARRAY) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 				const Array *array = VariantInternal::get_array((const Variant *)container);
 				int64_t *idx = VariantInternal::get_int(counter);
@@ -3184,7 +3207,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*iterator = array->get(*idx);
 
 					ip += 5; // Loop again.
@@ -3195,8 +3218,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #define OPCODE_ITERATE_PACKED_ARRAY(m_var_type, m_elem_type, m_get_func, m_ret_get_func)            \
 	OPCODE(OPCODE_ITERATE_PACKED_##m_var_type##_ARRAY) {                                            \
 		CHECK_SPACE(4);                                                                             \
-		GET_INSTRUCTION_ARG(counter, 0);                                                            \
-		GET_INSTRUCTION_ARG(container, 1);                                                          \
+		GET_VARIANT_PTR(counter, 0);                                                                \
+		GET_VARIANT_PTR(container, 1);                                                              \
 		const Vector<m_elem_type> *array = VariantInternal::m_get_func((const Variant *)container); \
 		int64_t *idx = VariantInternal::get_int(counter);                                           \
 		(*idx)++;                                                                                   \
@@ -3205,7 +3228,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			GD_ERR_BREAK(jumpto<0 || jumpto> _code_size);                                           \
 			ip = jumpto;                                                                            \
 		} else {                                                                                    \
-			GET_INSTRUCTION_ARG(iterator, 2);                                                       \
+			GET_VARIANT_PTR(iterator, 2);                                                           \
 			*VariantInternal::m_ret_get_func(iterator) = array->get(*idx);                          \
 			ip += 5;                                                                                \
 		}                                                                                           \
@@ -3225,8 +3248,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE(OPCODE_ITERATE_OBJECT) {
 				CHECK_SPACE(4);
 
-				GET_INSTRUCTION_ARG(counter, 0);
-				GET_INSTRUCTION_ARG(container, 1);
+				GET_VARIANT_PTR(counter, 0);
+				GET_VARIANT_PTR(container, 1);
 
 #ifdef DEBUG_ENABLED
 				bool freed = false;
@@ -3264,7 +3287,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 					GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size);
 					ip = jumpto;
 				} else {
-					GET_INSTRUCTION_ARG(iterator, 2);
+					GET_VARIANT_PTR(iterator, 2);
 					*iterator = obj->callp(CoreStringNames::get_singleton()->_iter_get, (const Variant **)args, 1, ce);
 #ifdef DEBUG_ENABLED
 					if (ce.error != Callable::CallError::CALL_OK) {
@@ -3283,7 +3306,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				int global_idx = _code_ptr[ip + 2];
 				GD_ERR_BREAK(global_idx < 0 || global_idx >= GDScriptLanguage::get_singleton()->get_global_array_size());
 
-				GET_INSTRUCTION_ARG(dst, 0);
+				GET_VARIANT_PTR(dst, 0);
 				*dst = GDScriptLanguage::get_singleton()->get_global_array()[global_idx];
 
 				ip += 3;
@@ -3297,7 +3320,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				const StringName *globalname = &_global_names_ptr[globalname_idx];
 				GD_ERR_BREAK(!GDScriptLanguage::get_singleton()->get_named_globals_map().has(*globalname));
 
-				GET_INSTRUCTION_ARG(dst, 0);
+				GET_VARIANT_PTR(dst, 0);
 				*dst = GDScriptLanguage::get_singleton()->get_named_globals_map()[*globalname];
 
 				ip += 3;
@@ -3307,7 +3330,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 #define OPCODE_TYPE_ADJUST(m_v_type, m_c_type)    \
 	OPCODE(OPCODE_TYPE_ADJUST_##m_v_type) {       \
 		CHECK_SPACE(2);                           \
-		GET_INSTRUCTION_ARG(arg, 0);              \
+		GET_VARIANT_PTR(arg, 0);                  \
 		VariantTypeAdjust<m_c_type>::adjust(arg); \
 		ip += 2;                                  \
 	}                                             \
@@ -3355,13 +3378,13 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				CHECK_SPACE(3);
 
 #ifdef DEBUG_ENABLED
-				GET_INSTRUCTION_ARG(test, 0);
+				GET_VARIANT_PTR(test, 0);
 				bool result = test->booleanize();
 
 				if (!result) {
 					String message_str;
 					if (_code_ptr[ip + 2] != 0) {
-						GET_INSTRUCTION_ARG(message, 1);
+						GET_VARIANT_PTR(message, 1);
 						message_str = *message;
 					}
 					if (message_str.is_empty()) {