[unix-history] / usr / src / sys / vax / include / psl.h

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)psl.h	7.1 (Berkeley) %G%
 */

/*
 * VAX program status longword
 */

#define	PSL_C		0x00000001	/* carry bit */
#define	PSL_V		0x00000002	/* overflow bit */
#define	PSL_Z		0x00000004	/* zero bit */
#define	PSL_N		0x00000008	/* negative bit */
#define	PSL_ALLCC	0x0000000f	/* all cc bits - unlikely */
#define	PSL_T		0x00000010	/* trace enable bit */
#define	PSL_IV		0x00000020	/* integer overflow enable bit */
#define	PSL_FU		0x00000040	/* floating point underflow enable */
#define	PSL_DV		0x00000080	/* decimal overflow enable bit */
#define	PSL_IPL		0x001f0000	/* interrupt priority level */
#define	PSL_PRVMOD	0x00c00000	/* previous mode (all on is user) */
#define	PSL_CURMOD	0x03000000	/* current mode (all on is user) */
#define	PSL_IS		0x04000000	/* interrupt stack */
#define	PSL_FPD		0x08000000	/* first part done */
#define	PSL_TP		0x40000000	/* trace pending */
#define	PSL_CM		0x80000000	/* compatibility mode */

#define	PSL_MBZ		0x3020ff00	/* must be zero bits */

#define	PSL_USERSET	(PSL_PRVMOD|PSL_CURMOD)
#define	PSL_USERCLR	(PSL_IS|PSL_IPL|PSL_MBZ)
Commit	Line	Data
da7c5cc6	1	/*
0880b18e	2	* Copyright (c) 1982, 1986 Regents of the University of California.
da7c5cc6 KM	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*
0880b18e	6	* @(#)psl.h 7.1 (Berkeley) %G%
da7c5cc6	7	*/
21f9ed82 BJ	8
	9	/*
	10	* VAX program status longword
	11	*/
	12
fc7e4e57 BJ	13	#define PSL_C 0x00000001 /* carry bit */
	14	#define PSL_V 0x00000002 /* overflow bit */
	15	#define PSL_Z 0x00000004 /* zero bit */
	16	#define PSL_N 0x00000008 /* negative bit */
	17	#define PSL_ALLCC 0x0000000f /* all cc bits - unlikely */
	18	#define PSL_T 0x00000010 /* trace enable bit */
	19	#define PSL_IV 0x00000020 /* integer overflow enable bit */
	20	#define PSL_FU 0x00000040 /* floating point underflow enable */
	21	#define PSL_DV 0x00000080 /* decimal overflow enable bit */
	22	#define PSL_IPL 0x001f0000 /* interrupt priority level */
	23	#define PSL_PRVMOD 0x00c00000 /* previous mode (all on is user) */
	24	#define PSL_CURMOD 0x03000000 /* current mode (all on is user) */
	25	#define PSL_IS 0x04000000 /* interrupt stack */
	26	#define PSL_FPD 0x08000000 /* first part done */
21f9ed82 BJ	27	#define PSL_TP 0x40000000 /* trace pending */
21f9ed82 BJ	28	#define PSL_CM 0x80000000 /* compatibility mode */
bb9af06a BJ	29
	30	#define PSL_MBZ 0x3020ff00 /* must be zero bits */
	31
	32	#define PSL_USERSET (PSL_PRVMOD\|PSL_CURMOD)
	33	#define PSL_USERCLR (PSL_IS\|PSL_IPL\|PSL_MBZ)