defs.h

<B>Digital的Unix操作系统VAX 4.2源码</B>

/*
 *		@(#)defs.h	6.3	(ULTRIX)	6/15/88
 */

/************************************************************************
 *									*
 *			Copyright (c) 1985 by				*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   This software is  derived  from  software  received  from  the	*
 *   University    of   California,   Berkeley,   and   from   Bell	*
 *   Laboratories.  Use, duplication, or disclosure is  subject  to	*
 *   restrictions  under  license  agreements  with  University  of	*
 *   California and with AT&T.						*
 *									*
 *   The information in this software is subject to change  without	*
 *   notice  and should not be construed as a commitment by Digital	*
 *   Equipment Corporation.						*
 *									*
 *   Digital assumes no responsibility for the use  or  reliability	*
 *   of its software on equipment which is not supplied by Digital.	*
 *									*
 ************************************************************************/
/************************************************************************
 *			Modification History				*
 *									*
 *	George M Mathew, 14-Mar-1988					*
 *	Included the file sys/cpudata.h					*
 *									*
 *	David L Ballenger, 16-May-1985					*
 * 001	Clean up definitions and take them from the appropriate files	*
 *	in /usr/include, etc.						*
 *									*
 ************************************************************************/
/*
 *	defs.h	4.3	82/12/19	
 */
/*
 * adb - vax string table version; common definitions
 */
#include <machine/psl.h>
#include <machine/pte.h>

#include <sys/param.h>
#include <sys/dir.h>
#include <sys/user.h>
#include <sys/smp_lock.h>
#include <sys/cpudata.h>

#include <ctype.h>
#include <a.out.h>

#include "mac.h"
#include "mode.h"
#include "head.h"

/* access modes */
#define RD	0
#define WT	1

#define NSP	0
#define	ISP	1
#define	DSP	2
#define STAR	4
#define STARCOM 0200

/*
 * Symbol types, used internally in calls to findsym routine.
 * One the VAX this all degenerates since I & D symbols are indistinct.
 * Basically we get NSYM==0 for `=' command, ISYM==DSYM otherwise.
 */
#define NSYM	0
#define DSYM	1		/* Data space symbol */
#define ISYM	DSYM		/* Instruction space symbol == DSYM on VAX */

#define BKPTSET	1
#define BKPTEXEC 2

#define USERPS	PSL
#define USERPC	PC
#define BPT	03
#define TBIT	020
#define FD	0200
#define	SETTRC	0
#define	RDUSER	2
#define	RIUSER	1
#define	WDUSER	5
#define WIUSER	4
#define	RUREGS	3
#define	WUREGS	6
#define	CONTIN	7
#define	EXIT	8
#define SINGLE	9

/* the quantities involving ctob() are located in the kernel stack. */
/* the others are in the pcb. */
#define KSP	0
#define ESP	4
#define SSP	8
#define USP	(ctob(UPAGES)-5*sizeof(int))
#define R0	(ctob(UPAGES)-18*sizeof(int))
#define R1	(ctob(UPAGES)-17*sizeof(int))
#define R2	(ctob(UPAGES)-16*sizeof(int))
#define R3	(ctob(UPAGES)-15*sizeof(int))
#define R4	(ctob(UPAGES)-14*sizeof(int))
#define R5	(ctob(UPAGES)-13*sizeof(int))
#define R6	(ctob(UPAGES)-12*sizeof(int))
#define R7	(ctob(UPAGES)-11*sizeof(int))
#define R8	(ctob(UPAGES)-10*sizeof(int))
#define R9	(ctob(UPAGES)-9*sizeof(int))
#define R10	(ctob(UPAGES)-8*sizeof(int))
#define R11	(ctob(UPAGES)-7*sizeof(int))
#define AP	(ctob(UPAGES)-21*sizeof(int))
#define FP	(ctob(UPAGES)-20*sizeof(int))
#define PC	(ctob(UPAGES)-2*sizeof(int))
#define PSL	(ctob(UPAGES)-1*sizeof(int))
#define P0BR	80
#define P0LR	84
#define P1BR	88
#define P1LR	92

#define MAXOFF	255
#define MAXPOS	80
#define MAXLIN	128
#define EOR	'\n'
#define SP	' '
#define TB	'\t'
#define SINGLE_QUOTE '\''
#define DOUBLE_QUOTE '\"'
#define QUOTE	0200
#define STRIP	0177
#define LOBYTE	0377
#define EVEN	-2

/* long to ints and back (puns) */
union {
	INT	I[2];
	L_INT	L;
} itolws;

#ifndef vax
#define leng(a)		((long)((unsigned)(a)))
#define shorten(a)	((int)(a))
#define itol(a,b)	(itolws.I[0]=(a), itolws.I[1]=(b), itolws.L)
#else
#define leng(a)		itol(0,a)
#define shorten(a)	((short)(a))
#define itol(a,b)	(itolws.I[0]=(b), itolws.I[1]=(a), itolws.L)
#endif

/* result type declarations */
L_INT		inkdot();
POS		get();
POS		chkget();
STRING		exform();
L_INT		round();
BKPTR		scanbkpt();
VOID		fault();

struct	pcb	pcb;
int	kernel;
int	kcore;
struct	pte *sbr;
int	slr;
int	masterpcbb;