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Annotation of XNU/osfmk/i386/eflags.h, revision 1.1.1.1

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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