osfmk/i386/eflags.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26 /*
  27  * Mach Operating System
  28  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
  29  * All Rights Reserved.
  30  *
  31  * Permission to use, copy, modify and distribute this software and its
  32  * documentation is hereby granted, provided that both the copyright
  33  * notice and this permission notice appear in all copies of the
  34  * software, derivative works or modified versions, and any portions
  35  * thereof, and that both notices appear in supporting documentation.
  36  *
  37  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  38  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  39  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  40  *
  41  * Carnegie Mellon requests users of this software to return to
  42  *
  43  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  44  *  School of Computer Science
  45  *  Carnegie Mellon University
  46  *  Pittsburgh PA 15213-3890
  47  *
  48  * any improvements or extensions that they make and grant Carnegie Mellon
  49  * the rights to redistribute these changes.
  50  */
  51 /*
  52  */
  53
  54 #ifndef _I386_EFLAGS_H_
  55 #define _I386_EFLAGS_H_
  56
  57 /*
  58  *      i386 flags register
  59  */
  60
  61 #ifndef EFL_CF          /* FIXME - this is pulled from mach/i386/eflags.h */
  62 #define EFL_CF          0x00000001              /* carry */
  63 #define EFL_PF          0x00000004              /* parity of low 8 bits */
  64 #define EFL_AF          0x00000010              /* carry out of bit 3 */
  65 #define EFL_ZF          0x00000040              /* zero */
  66 #define EFL_SF          0x00000080              /* sign */
  67 #define EFL_TF          0x00000100              /* trace trap */
  68 #define EFL_IF          0x00000200              /* interrupt enable */
  69 #define EFL_DF          0x00000400              /* direction */
  70 #define EFL_OF          0x00000800              /* overflow */
  71 #define EFL_IOPL        0x00003000              /* IO privilege level: */
  72 #define EFL_IOPL_KERNEL 0x00000000                      /* kernel */
  73 #define EFL_IOPL_USER   0x00003000                      /* user */
  74 #define EFL_NT          0x00004000              /* nested task */
  75 #define EFL_RF          0x00010000              /* resume without tracing */
  76 #define EFL_VM          0x00020000              /* virtual 8086 mode */
  77 #define EFL_AC          0x00040000              /* alignment check */
  78 #define EFL_VIF         0x00080000              /* virtual interrupt flag */
  79 #define EFL_VIP         0x00100000              /* virtual interrupt pending */
  80 #define EFL_ID          0x00200000              /* cpuID instruction */
  81 #endif
  82
  83 #define EFL_USER_SET    (EFL_IF)
  84 #define EFL_USER_CLEAR  (EFL_IOPL|EFL_NT|EFL_RF)
  85
  86 #endif  /* _I386_EFLAGS_H_ */