TDB_TL
if ((trapdebug & TDB_TL) && gettl()) {
if ((trapdebug & TDB_TL) && gettl()) {
if ((trapdebug & TDB_TL) && gettl()) {
if ((trapdebug & TDB_TL) && gettl()) {
((trapdebug & TDB_TL) && gettl())) {