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Annotation of Net2/arch/i386/include/eflags.h, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
                      4:  * All Rights Reserved.
                      5:  * 
                      6:  * Permission to use, copy, modify and distribute this software and its
                      7:  * documentation is hereby granted, provided that both the copyright
                      8:  * notice and this permission notice appear in all copies of the
                      9:  * software, derivative works or modified versions, and any portions
                     10:  * thereof, and that both notices appear in supporting documentation.
                     11:  * 
                     12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     15:  * 
                     16:  * Carnegie Mellon requests users of this software to return to
                     17:  * 
                     18:  *  Software Distribution Coordinator  or  [email protected]
                     19:  *  School of Computer Science
                     20:  *  Carnegie Mellon University
                     21:  *  Pittsburgh PA 15213-3890
                     22:  * 
                     23:  * any improvements or extensions that they make and grant Carnegie Mellon
                     24:  * the rights to redistribute these changes.
                     25:  */
                     26: /*
                     27:  * HISTORY
                     28:  * $Log: eflags.h,v $
                     29:  * Revision 1.1.1.1  1993/03/21 09:45:47  cgd
                     30:  * initial import of 386bsd-0.1 sources
                     31:  *
                     32:  * Revision 2.4  91/05/14  16:06:35  mrt
                     33:  *     Correcting copyright
                     34:  * 
                     35:  * Revision 2.3  91/02/05  17:11:26  mrt
                     36:  *     Changed to new Mach copyright
                     37:  *     [91/02/01  17:31:41  mrt]
                     38:  * 
                     39:  * Revision 2.2  90/05/03  15:25:03  dbg
                     40:  *     Created.
                     41:  *     [90/02/08            dbg]
                     42:  * 
                     43:  */
                     44: 
                     45: #ifndef        _I386_EFLAGS_H_
                     46: #define        _I386_EFLAGS_H_
                     47: 
                     48: /*
                     49:  *     i386 flags register
                     50:  */
                     51: #define        EFL_CF          0x00000001              /* carry */
                     52: #define        EFL_PF          0x00000004              /* parity of low 8 bits */
                     53: #define        EFL_AF          0x00000010              /* carry out of bit 3 */
                     54: #define        EFL_ZF          0x00000040              /* zero */
                     55: #define        EFL_SF          0x00000080              /* sign */
                     56: #define        EFL_TF          0x00000100              /* trace trap */
                     57: #define        EFL_IF          0x00000200              /* interrupt enable */
                     58: #define        EFL_DF          0x00000400              /* direction */
                     59: #define        EFL_OF          0x00000800              /* overflow */
                     60: #define        EFL_IOPL        0x00003000              /* IO privilege level: */
                     61: #define        EFL_IOPL_KERNEL 0x00000000                      /* kernel */
                     62: #define        EFL_IOPL_USER   0x00003000                      /* user */
                     63: #define        EFL_NT          0x00004000              /* nested task */
                     64: #define        EFL_RF          0x00010000              /* resume without tracing */
                     65: #define        EFL_VM          0x00020000              /* virtual 8086 mode */
                     66: 
                     67: #define        EFL_USER_SET    (EFL_IF)
                     68: #define        EFL_USER_CLEAR  (EFL_IOPL|EFL_NT|EFL_RF)
                     69: 
                     70: #endif _I386_EFLAGS_H_

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