diff --git a/PDP11/test.c b/PDP11/test.c
index dd15b2a6..80ba7145 100644
--- a/PDP11/test.c
+++ b/PDP11/test.c
@@ -521,15 +521,13 @@ void produce_validation_tests()
 	emit_branch_instructions();  // conditional_branch_instructions*
 	emit_condition_sets();  // condition_code_operations*
 	emit_add_double_oper_instr();  // additional_double_operand_instructions*
-
-	emit_single_operand_instructions();
-
-	emit_add_sub_c();  // double_operand_instructions, single_operand_instructions
+	emit_add_sub_c();  // double_operand_instructions, single_operand_instructions*
+	emit_single_operand_instructions();  // single_operand_instructions
 	emit_bit_instructions();  // double_operand_instructions
 	emit_cmp();  // double_operand_instructions
 
 	// TODO:
 	// - double_operand_instructions: MOV
-	// - single_operand_instructions
+	// - single_operand_instructions: MTPS, MFPI, MFPD, MTPI, MTPD, MFPS
 	// ...
 }