#define	settimer(x)	clocks.x = clocks.system++

#if	!defined(TN3270)

#define	ExitString(f,s,r)	{ fprintf(f, s); exit(r); }
#define	Exit(x)			exit(x)
#define	SetIn3270()

#endif	/* !defined(TN3270) */

#define	NETADD(c)	{ *nfrontp++ = c; }
#define	NET2ADD(c1,c2)	{ NETADD(c1); NETADD(c2); }
#define NETLOC()	(nfrontp)
#define	NETMAX()	(netobuf+sizeof netobuf-1)
#define	NETBYTES()	(nfrontp-nbackp)
#define	NETROOM()	(NETMAX()-NETLOC()+1)

#define	TTYADD(c)	{ if (!(SYNCHing||flushout)) { *tfrontp++ = c; } }
#define	TTYLOC()	(tfrontp)
#define	TTYMAX()	(ttyobuf+sizeof ttyobuf-1)
#define	TTYMIN()	(netobuf)
#define	TTYBYTES()	(tfrontp-tbackp)
#define	TTYROOM()	(TTYMAX()-TTYLOC()+1)

/*	Various modes */
#define	MODE_LINE(m)	(modelist[m].modetype & LINE)
#define	MODE_LOCAL_CHARS(m)	(modelist[m].modetype &  LOCAL_CHARS)
#define	MODE_LOCAL_ECHO(m)	(modelist[m].modetype & LOCAL_ECHO)
#define	MODE_COMMAND_LINE(m)	(modelist[m].modetype & COMMAND_LINE)

#define	LOCAL_CHARS	0x01		/* Characters processed locally */
#define	LINE		0x02		/* Line-by-line mode of operation */
#define	LOCAL_ECHO	0x04		/* Echoing locally */
#define	COMMAND_LINE	0x08		/* Command line mode */