KGDB_START
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
if (c == KGDB_START) {
PUTC(KGDB_START);
while ((c = GETC()) != KGDB_START)