124 	register struct tb *tbp;  local
129 	for (tbp = tb; tbp < &tb[NTB]; tbp++)
130 		if (tbp->tbflags == 0)
132 	if (tbp >= &tb[NTB])
134 	tbp->tbflags = TBTIGER|TBPOINT;		/* default */
135 	tbp->tbcp = tbp->cbuf;
136 	tbp->tbinbuf = 0;
137 	bzero((caddr_t)&tbp->tbpos, sizeof (tbp->tbpos));
138 	tp->t_sc = (caddr_t)tbp;
164 	struct tb *tbp = (struct tb *)tp->t_sc;  local
165 	const struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
170 	ret = uiomove((caddr_t) &tbp->tbpos, tc->tbc_uiosize, uio);
172 		tbp->tbpos.polpos.p_key = ' ';
189 	struct tb *tbp = (struct tb *)tp->t_sc;  local
190 	const struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
197 	if (c&tc->tbc_sync || tbp->tbinbuf == tc->tbc_recsize) {
198 		tbp->tbcp = tbp->cbuf;
199 		tbp->tbinbuf = 0;
201 	*tbp->tbcp++ = c&0177;
205 	if (++tbp->tbinbuf == tc->tbc_recsize)
206 		(*tc->tbc_decode)(tc, tbp->cbuf, &tbp->tbpos);
336 	register struct tb *tbp = (struct tb *)tp->t_sc;  local
341 		*(int *)data = tbp->tbflags & TBMODE;
348 		tbp->tbflags &= ~TBTYPE;
349 		tbp->tbflags |= *(int *)data & TBTYPE;
356 		tbp->tbflags &= ~TBMODE;
357 		tbp->tbflags |= *(int *)data & TBMODE;
358 		tc = &tbconf[tbp->tbflags & TBTYPE];
359 		if (tbp->tbflags & TBSTOP) {
366 		if (tbp->tbflags & TBPOINT) {
378 		*(int *)data = tbp->tbflags & TBTYPE;