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      1 /*	$NetBSD: psl.h,v 1.10 2017/08/12 12:33:31 maxv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * William Jolitz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)psl.h	5.2 (Berkeley) 1/18/91
     35  */
     36 
     37 #ifndef _X86_PSL_H_
     38 #define _X86_PSL_H_
     39 
     40 /*
     41  * 386 processor status longword.
     42  */
     43 #define	PSL_C		0x00000001	/* carry flag */
     44 #define	PSL_PF		0x00000004	/* parity flag */
     45 #define	PSL_AF		0x00000010	/* auxiliary carry flag */
     46 #define	PSL_Z		0x00000040	/* zero flag */
     47 #define	PSL_N		0x00000080	/* sign flag */
     48 #define	PSL_T		0x00000100	/* trap flag */
     49 #define	PSL_I		0x00000200	/* interrupt enable flag */
     50 #define	PSL_D		0x00000400	/* direction flag */
     51 #define	PSL_V		0x00000800	/* overflow flag */
     52 #define	PSL_IOPL	0x00003000	/* i/o privilege level */
     53 #define	PSL_NT		0x00004000	/* nested task */
     54 #define	PSL_RF		0x00010000	/* resume flag */
     55 #define	PSL_VM		0x00020000	/* virtual 8086 mode */
     56 #define	PSL_AC		0x00040000	/* alignment check flag */
     57 #define	PSL_VIF		0x00080000	/* virtual interrupt enable flag */
     58 #define	PSL_VIP		0x00100000	/* virtual interrupt pending flag */
     59 #define	PSL_ID		0x00200000	/* identification flag */
     60 
     61 #define	PSL_MBO		0x00000002	/* must be one bits */
     62 #define	PSL_MBZ		0xffc08028	/* must be zero bits */
     63 
     64 #define	PSL_USERSET	(PSL_MBO | PSL_I)
     65 #define	PSL_USERSTATIC	(PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
     66 #define PSL_USER	(PSL_C | PSL_PF | PSL_AF | PSL_Z | PSL_N | \
     67     PSL_T | PSL_V | PSL_D | PSL_AC)
     68 #define	PSL_CLEARSIG	(PSL_T | PSL_VM | PSL_AC | PSL_D)
     69 
     70 
     71 /*
     72  * ???
     73  */
     74 #ifdef _KERNEL
     75 #include <machine/intr.h>
     76 #endif
     77 
     78 #endif /* !_X86_PSL_H_ */
     79