psl.h

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00001 /*-
00002  * Copyright (c) 1990 The Regents of the University of California.
00003  * All rights reserved.
00004  *
00005  * This code is derived from software contributed to Berkeley by
00006  * William Jolitz.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  * 2. Redistributions in binary form must reproduce the above copyright
00014  *    notice, this list of conditions and the following disclaimer in the
00015  *    documentation and/or other materials provided with the distribution.
00016  * 3. All advertising materials mentioning features or use of this software
00017  *    must display the following acknowledgement:
00018  *      This product includes software developed by the University of
00019  *      California, Berkeley and its contributors.
00020  * 4. Neither the name of the University nor the names of its contributors
00021  *    may be used to endorse or promote products derived from this software
00022  *    without specific prior written permission.
00023  *
00024  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00025  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00027  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00028  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00029  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00030  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00031  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00032  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00033  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00034  * SUCH DAMAGE.
00035  *
00036  *      @(#)psl.h       5.2 (Berkeley) 1/18/91
00037  */
00038 #ifndef __MACHDEP_PSL_H__
00039 #define __MACHDEP_PSL_H__
00040 
00041 /*
00042  * 386 processor status longword.
00043  */
00044 #define PSL_C           0x00000001      /* carry flag */
00045 #define PSL_PF          0x00000004      /* parity flag */
00046 #define PSL_AF          0x00000010      /* auxiliary carry flag */
00047 #define PSL_Z           0x00000040      /* zero flag */
00048 #define PSL_N           0x00000080      /* sign flag */
00049 #define PSL_T           0x00000100      /* trap flag */
00050 #define PSL_I           0x00000200      /* interrupt enable flag */
00051 #define PSL_D           0x00000400      /* direction flag */
00052 #define PSL_V           0x00000800      /* overflow flag */
00053 #define PSL_IOPL        0x00003000      /* i/o privilege level */
00054 #define PSL_NT          0x00004000      /* nested task */
00055 #define PSL_RF          0x00010000      /* resume flag */
00056 #define PSL_VM          0x00020000      /* virtual 8086 mode */
00057 #define PSL_AC          0x00040000      /* alignment check flag */
00058 #define PSL_VIF         0x00080000      /* virtual interrupt enable flag */
00059 #define PSL_VIP         0x00100000      /* virtual interrupt pending flag */
00060 #define PSL_ID          0x00200000      /* identification flag */
00061 
00062 #define PSL_MBO         0x00000002      /* must be one bits */
00063 #define PSL_MBZ         0xffc08028      /* must be zero bits */
00064 
00065 #endif

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