projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 15637ed4 RG |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * William Jolitz. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * 3. All advertising materials mentioning features or use of this software | |
| 17 | * must display the following acknowledgement: | |
| 18 | * This product includes software developed by the University of | |
| 19 | * California, Berkeley and its contributors. | |
| 20 | * 4. Neither the name of the University nor the names of its contributors | |
| 21 | * may be used to endorse or promote products derived from this software | |
| 22 | * without specific prior written permission. | |
| 23 | * | |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 34 | * SUCH DAMAGE. | |
| 35 | * | |
| 78ed81a3 | 36 | * from: @(#)psl.h 5.2 (Berkeley) 1/18/91 |
| 37 | * $Id$ | |
| 15637ed4 RG |
38 | */ |
| 39 | ||
| 40 | /* | |
| 41 | * 386 processor status longword. | |
| 42 | */ | |
| 43 | #define PSL_C 0x00000001 /* carry bit */ | |
| 44 | #define PSL_PF 0x00000004 /* parity bit */ | |
| 45 | #define PSL_AF 0x00000010 /* bcd carry bit */ | |
| 46 | #define PSL_Z 0x00000040 /* zero bit */ | |
| 47 | #define PSL_N 0x00000080 /* negative bit */ | |
| 48 | #define PSL_T 0x00000100 /* trace enable bit */ | |
| 49 | #define PSL_I 0x00000200 /* interrupt enable bit */ | |
| 50 | #define PSL_D 0x00000400 /* string instruction direction bit */ | |
| 51 | #define PSL_V 0x00000800 /* overflow bit */ | |
| 52 | #define PSL_IOPL 0x00003000 /* i/o priviledge level enable */ | |
| 53 | #define PSL_NT 0x00004000 /* nested task bit */ | |
| 54 | #define PSL_RF 0x00010000 /* restart flag bit */ | |
| 55 | #define PSL_VM 0x00020000 /* virtual 8086 mode bit */ | |
| 56 | ||
| 57 | #define PSL_MBZ 0xfffc7fb7 /* must be zero bits */ | |
| 58 | #define PSL_MBO 0x00000002 /* must be one bits */ | |
| 59 | ||
| 60 | #define PSL_USERSET (PSL_IOPL) | |
| 61 | #define PSL_USERCLR (PSL_I|PSL_NT) |