/* Copyright 1984 by the Massachusetts Institute of Technology */

/* Useful structures and things */

struct	ltow	{	unss	loword;
			unss	hiword;
		};


struct	wtob	{	byte	lobyte;
			byte	hibyte;
		};


#define	iorbq	struct	iorbqstr

	iorbq	{	iorb	*q_hd;
			iorb	**q_tl;
			unsw	q_nq;
		};