master
1/*
2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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.
14 *
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
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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#if defined (__i386__) || defined (__x86_64__)
63
64/*
65 * i386 flags register
66 */
67
68#ifndef EFL_CF
69#define EFL_CF 0x00000001 /* carry */
70#define EFL_PF 0x00000004 /* parity of low 8 bits */
71#define EFL_AF 0x00000010 /* carry out of bit 3 */
72#define EFL_ZF 0x00000040 /* zero */
73#define EFL_SF 0x00000080 /* sign */
74#define EFL_TF 0x00000100 /* trace trap */
75#define EFL_IF 0x00000200 /* interrupt enable */
76#define EFL_DF 0x00000400 /* direction */
77#define EFL_OF 0x00000800 /* overflow */
78#define EFL_IOPL 0x00003000 /* IO privilege level: */
79#define EFL_IOPL_KERNEL 0x00000000 /* kernel */
80#define EFL_IOPL_USER 0x00003000 /* user */
81#define EFL_NT 0x00004000 /* nested task */
82#define EFL_RF 0x00010000 /* resume without tracing */
83#define EFL_VM 0x00020000 /* virtual 8086 mode */
84#define EFL_AC 0x00040000 /* alignment check */
85#define EFL_VIF 0x00080000 /* virtual interrupt flag */
86#define EFL_VIP 0x00100000 /* virtual interrupt pending */
87#define EFL_ID 0x00200000 /* cpuID instruction */
88#endif
89
90#define EFL_CLR 0xfff88028
91#define EFL_SET 0x00000002
92
93#define EFL_USER_SET (EFL_IF)
94#define EFL_USER_CLEAR (EFL_IOPL|EFL_NT|EFL_RF)
95
96#endif /* defined (__i386__) || defined (__x86_64__) */
97
98#endif /* _I386_EFLAGS_H_ */