BB_GET_BIT2
(void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal));
retval |= BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal));
(void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal));
(void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal));
(void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal));