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 /* 63 * i386 flags register 64 */ 65 66 #ifndef EFL_CF 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 88 #define EFL_CLR 0xfff88028 89 #define EFL_SET 0x00000002 90 91 #define EFL_USER_SET (EFL_IF) 92 #define EFL_USER_CLEAR (EFL_IOPL|EFL_NT|EFL_RF) 93 94 #endif /* _I386_EFLAGS_H_ */