code cleanup and division by zero error handling

src/exception.c

@@ -27,6 +27,10 @@ char* exceptionAsCString(VMBL_Exception exception)
 	case EXCEPTION_INVALID_INSTRUCTION_ACCESS:
 		return "EXCEPTION_INVALID_INSTRUCTION_ACCESS";
 		break;
+
+	case EXCEPTION_DIVIDE_BY_ZERO:
+		return "EXCEPTION_DIVIDE_BY_ZERO";
+		break;
 	
 	default:
 		return "EXCEPTION_UNKOWN";