#define	M	3#define	C	100/* * character Q structure */struct	clist{	int	c_cc;	int	c_cf;	int	c_cl;};struct	chan{	char	cflag;	char	m, c;	struct	chan	*dest;	struct	clist	ioq;};/* c flags */#define	BLOCK	01struct	line{	char	xbuf[24+2];	char	rbuf[100+2];	char	rseq;	char	xseq;	char	ackf;	char	xflag;	char	state;	char	time;	int	sum;	char	*ip;	char	*ep;};#define	WWAIT	02#define	CRUN	04#define	RWAIT	010#define	ALLOC	020#define	DIS	040#define	DLY	0100/* * machine structure */struct	mach{	char	mflag;	char	rchan;	char	rcount;	char	xchan;	char	xcount;	struct	clist	ackq;	struct	clist	datq;	struct	clist	disq;	struct	chan	*chanp[128];};/* m flags */#define	RNEXT	01#define	MRUN	04#define	XNEXT	010/* * trace buffer */#define	TBSIZ	100