LINEDISC
if (vtable[LINEDISC].v_access&CHANGED) {
vtable[LINEDISC].v_access &= ~CHANGED;
int ld = (int)(intptr_t)value(LINEDISC);
if (value(LINEDISC) != TTYDISC) {
int ld = (int)(intptr_t)value(LINEDISC);