1 /* $OpenBSD: psl.h,v 1.11 2000/08/05 22:07:32 niklas Exp $ */ 2 /* $NetBSD: psl.h,v 1.30 1996/05/13 01:28:05 mycroft Exp $ */ 3 4 /*- 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)psl.h 5.2 (Berkeley) 1/18/91 40 */ 41 42 #ifndef _I386_PSL_H_ 43 #define _I386_PSL_H_ 44 45 /* 46 * 386 processor status longword. 47 */ 48 #define PSL_C 0x00000001 /* carry flag */ 49 #define PSL_PF 0x00000004 /* parity flag */ 50 #define PSL_AF 0x00000010 /* auxiliary carry flag */ 51 #define PSL_Z 0x00000040 /* zero flag */ 52 #define PSL_N 0x00000080 /* sign flag */ 53 #define PSL_T 0x00000100 /* trap flag */ 54 #define PSL_I 0x00000200 /* interrupt enable flag */ 55 #define PSL_D 0x00000400 /* direction flag */ 56 #define PSL_V 0x00000800 /* overflow flag */ 57 #define PSL_IOPL 0x00003000 /* i/o privilege level */ 58 #define PSL_NT 0x00004000 /* nested task */ 59 #define PSL_RF 0x00010000 /* resume flag */ 60 #define PSL_VM 0x00020000 /* virtual 8086 mode */ 61 #define PSL_AC 0x00040000 /* alignment check flag */ 62 #define PSL_VIF 0x00080000 /* virtual interrupt enable flag */ 63 #define PSL_VIP 0x00100000 /* virtual interrupt pending flag */ 64 #define PSL_ID 0x00200000 /* identification flag */ 65 66 #define PSL_MBO 0x00000002 /* must be one bits */ 67 #define PSL_MBZ 0xffc08028 /* must be zero bits */ 68 69 #define PSL_USERSET (PSL_MBO | PSL_I) 70 #ifdef VM86 71 #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VIF | PSL_VIP) 72 #else 73 #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP) 74 #endif 75 76 #ifdef _KERNEL 77 #include <machine/intr.h> 78 79 #ifndef _LOCORE 80 81 /* 82 * Interrupt handler chains. isa_intr_establish() inserts a handler into 83 * the list. The handler is called with its (single) argument. 84 */ 85 86 struct intrhand { 87 int (*ih_fun) __P((void *)); 88 void *ih_arg; 89 u_long ih_count; 90 struct intrhand *ih_next; 91 int ih_level; 92 int ih_irq; 93 char *ih_what; 94 }; 95 96 #endif /* _LOCORE */ 97 #endif /* _KERNEL */ 98 99 #endif /* !_I386_PSL_H_ */ 100