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Annotation of XNU/osfmk/i386/eflags.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /* 
        !            26:  * Mach Operating System
        !            27:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
        !            28:  * All Rights Reserved.
        !            29:  * 
        !            30:  * Permission to use, copy, modify and distribute this software and its
        !            31:  * documentation is hereby granted, provided that both the copyright
        !            32:  * notice and this permission notice appear in all copies of the
        !            33:  * software, derivative works or modified versions, and any portions
        !            34:  * thereof, and that both notices appear in supporting documentation.
        !            35:  * 
        !            36:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            37:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            38:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            39:  * 
        !            40:  * Carnegie Mellon requests users of this software to return to
        !            41:  * 
        !            42:  *  Software Distribution Coordinator  or  [email protected]
        !            43:  *  School of Computer Science
        !            44:  *  Carnegie Mellon University
        !            45:  *  Pittsburgh PA 15213-3890
        !            46:  * 
        !            47:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            48:  * the rights to redistribute these changes.
        !            49:  */
        !            50: /*
        !            51:  */
        !            52: 
        !            53: #ifndef        _I386_EFLAGS_H_
        !            54: #define        _I386_EFLAGS_H_
        !            55: 
        !            56: /*
        !            57:  *     i386 flags register
        !            58:  */
        !            59: 
        !            60: #ifndef EFL_CF         /* FIXME - this is pulled from mach/i386/eflags.h */
        !            61: #define        EFL_CF          0x00000001              /* carry */
        !            62: #define        EFL_PF          0x00000004              /* parity of low 8 bits */
        !            63: #define        EFL_AF          0x00000010              /* carry out of bit 3 */
        !            64: #define        EFL_ZF          0x00000040              /* zero */
        !            65: #define        EFL_SF          0x00000080              /* sign */
        !            66: #define        EFL_TF          0x00000100              /* trace trap */
        !            67: #define        EFL_IF          0x00000200              /* interrupt enable */
        !            68: #define        EFL_DF          0x00000400              /* direction */
        !            69: #define        EFL_OF          0x00000800              /* overflow */
        !            70: #define        EFL_IOPL        0x00003000              /* IO privilege level: */
        !            71: #define        EFL_IOPL_KERNEL 0x00000000                      /* kernel */
        !            72: #define        EFL_IOPL_USER   0x00003000                      /* user */
        !            73: #define        EFL_NT          0x00004000              /* nested task */
        !            74: #define        EFL_RF          0x00010000              /* resume without tracing */
        !            75: #define        EFL_VM          0x00020000              /* virtual 8086 mode */
        !            76: #define EFL_AC         0x00040000              /* alignment check */
        !            77: #define EFL_VIF                0x00080000              /* virtual interrupt flag */
        !            78: #define EFL_VIP                0x00100000              /* virtual interrupt pending */
        !            79: #define EFL_ID         0x00200000              /* cpuID instruction */
        !            80: #endif
        !            81: 
        !            82: #define        EFL_USER_SET    (EFL_IF)
        !            83: #define        EFL_USER_CLEAR  (EFL_IOPL|EFL_NT|EFL_RF)
        !            84: 
        !            85: #endif /* _I386_EFLAGS_H_ */

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