[apple/xnu.git] / osfmk / i386 / eflags.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */

#ifndef	_I386_EFLAGS_H_
#define	_I386_EFLAGS_H_

/*
 *	i386 flags register
 */

#ifndef EFL_CF
#define	EFL_CF		0x00000001		/* carry */
#define	EFL_PF		0x00000004		/* parity of low 8 bits */
#define	EFL_AF		0x00000010		/* carry out of bit 3 */
#define	EFL_ZF		0x00000040		/* zero */
#define	EFL_SF		0x00000080		/* sign */
#define	EFL_TF		0x00000100		/* trace trap */
#define	EFL_IF		0x00000200		/* interrupt enable */
#define	EFL_DF		0x00000400		/* direction */
#define	EFL_OF		0x00000800		/* overflow */
#define	EFL_IOPL	0x00003000		/* IO privilege level: */
#define	EFL_IOPL_KERNEL	0x00000000			/* kernel */
#define	EFL_IOPL_USER	0x00003000			/* user */
#define	EFL_NT		0x00004000		/* nested task */
#define	EFL_RF		0x00010000		/* resume without tracing */
#define	EFL_VM		0x00020000		/* virtual 8086 mode */
#define EFL_AC		0x00040000		/* alignment check */
#define EFL_VIF		0x00080000		/* virtual interrupt flag */
#define EFL_VIP		0x00100000		/* virtual interrupt pending */
#define EFL_ID		0x00200000		/* cpuID instruction */
#endif

#define EFL_CLR		0xfff88028
#define EFL_SET		0x00000002

#define	EFL_USER_SET	(EFL_IF)
#define	EFL_USER_CLEAR	(EFL_IOPL|EFL_NT|EFL_RF)

#endif	/* _I386_EFLAGS_H_ */
Commit	Line	Data
1c79356b	1	/*
0c530ab8	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56	/*
	57	*/
	58
	59	#ifndef _I386_EFLAGS_H_
	60	#define _I386_EFLAGS_H_
	61
	62	/*
	63	* i386 flags register
	64	*/
	65
0c530ab8	66	#ifndef EFL_CF
1c79356b A	67	#define EFL_CF 0x00000001 /* carry */
	68	#define EFL_PF 0x00000004 /* parity of low 8 bits */
	69	#define EFL_AF 0x00000010 /* carry out of bit 3 */
	70	#define EFL_ZF 0x00000040 /* zero */
	71	#define EFL_SF 0x00000080 /* sign */
	72	#define EFL_TF 0x00000100 /* trace trap */
	73	#define EFL_IF 0x00000200 /* interrupt enable */
	74	#define EFL_DF 0x00000400 /* direction */
	75	#define EFL_OF 0x00000800 /* overflow */
	76	#define EFL_IOPL 0x00003000 /* IO privilege level: */
	77	#define EFL_IOPL_KERNEL 0x00000000 /* kernel */
	78	#define EFL_IOPL_USER 0x00003000 /* user */
	79	#define EFL_NT 0x00004000 /* nested task */
	80	#define EFL_RF 0x00010000 /* resume without tracing */
	81	#define EFL_VM 0x00020000 /* virtual 8086 mode */
	82	#define EFL_AC 0x00040000 /* alignment check */
	83	#define EFL_VIF 0x00080000 /* virtual interrupt flag */
	84	#define EFL_VIP 0x00100000 /* virtual interrupt pending */
	85	#define EFL_ID 0x00200000 /* cpuID instruction */
	86	#endif
	87
0c530ab8 A	88	#define EFL_CLR 0xfff88028
	89	#define EFL_SET 0x00000002
	90
1c79356b A	91	#define EFL_USER_SET (EFL_IF)
	92	#define EFL_USER_CLEAR (EFL_IOPL\|EFL_NT\|EFL_RF)
	93
	94	#endif /* _I386_EFLAGS_H_ */