32 	volatile cbd_t	*tbdf, *rbdf;  in serial_init()  local
101 	rbdf = (cbd_t *)&ip->im_dprambase[dpaddr];  in serial_init()
102 	rbdf->cbd_bufaddr = memaddr;  in serial_init()
103 	rbdf->cbd_sc = 0;  in serial_init()
104 	tbdf = rbdf + 1;  in serial_init()
200 	rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP;  in serial_init()
223 	volatile cbd_t		*rbdf;  in serial_readbuf()  local
234 	rbdf = (cbd_t *)&ip->im_dprambase[sup->scc_genscc.scc_rbase];  in serial_readbuf()
237 	rbdf = (cbd_t *)&ip->im_dprambase[up->smc_rbase];  in serial_readbuf()
242 	buf = (char *)rbdf->cbd_bufaddr;  in serial_readbuf()
243 	while (rbdf->cbd_sc & BD_SC_EMPTY);  in serial_readbuf()
244 	nc = rbdf->cbd_datlen;  in serial_readbuf()
247 	rbdf->cbd_sc |= BD_SC_EMPTY;  in serial_readbuf()
299 	volatile cbd_t		*rbdf;  in serial_tstc()  local
307 	rbdf = (cbd_t *)&ip->im_dprambase[sup->scc_genscc.scc_rbase];  in serial_tstc()
310 	rbdf = (cbd_t *)&ip->im_dprambase[up->smc_rbase];  in serial_tstc()
313 	return(!(rbdf->cbd_sc & BD_SC_EMPTY));  in serial_tstc()