1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 23 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 24 /* All Rights Reserved */ 25 26 /* 27 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _IA32_SYS_PSW_H 32 #define _IA32_SYS_PSW_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #ifndef _ASM 41 42 /* Flags Register */ 43 44 typedef struct flags { 45 uint_t fl_cf : 1, /* carry/borrow */ 46 : 1, /* reserved */ 47 fl_pf : 1, /* parity */ 48 : 1, /* reserved */ 49 fl_af : 1, /* carry/borrow */ 50 : 1, /* reserved */ 51 fl_zf : 1, /* zero */ 52 fl_sf : 1, /* sign */ 53 fl_tf : 1, /* trace */ 54 fl_if : 1, /* interrupt enable */ 55 fl_df : 1, /* direction */ 56 fl_of : 1, /* overflow */ 57 fl_iopl : 2, /* I/O privilege level */ 58 fl_nt : 1, /* nested task */ 59 : 1, /* reserved */ 60 fl_rf : 1, /* reset */ 61 fl_vm : 1, /* virtual 86 mode */ 62 fl_res : 14; /* reserved */ 63 } flags_t; 64 65 #endif /* !_ASM */ 66 67 #define PS_C 0x0001 /* carry bit */ 68 #define PS_MB1 0x0002 /* unused; must be 1. */ 69 #define PS_P 0x0004 /* parity bit */ 70 #define PS_AC 0x0010 /* auxiliary carry bit */ 71 #define PS_Z 0x0040 /* zero bit */ 72 #define PS_N 0x0080 /* negative bit */ 73 #define PS_T 0x0100 /* trace enable bit */ 74 #define PS_IE 0x0200 /* interrupt enable bit */ 75 #define PS_D 0x0400 /* direction bit */ 76 #define PS_V 0x0800 /* overflow bit */ 77 #define PS_IOPL 0x3000 /* I/O privilege level */ 78 #define PS_NT 0x4000 /* nested task flag */ 79 #define PS_RF 0x10000 /* restore flag */ 80 #define PS_VM 0x20000 /* virtual 86 mode flag */ 81 #define PS_ACHK 0x40000 /* alignment check enable (486) */ 82 #define PS_VINT 0x80000 /* virtual interrupt flag */ 83 #define PS_VINTP 0x100000 /* virtual interrupt pending */ 84 #define PS_ID 0x200000 /* ID flag */ 85 86 #define PS_ICC (PS_C|PS_AC|PS_Z|PS_N) /* integer condition codes */ 87 88 #define FMT_FLAGS_REG \ 89 "\20\26id\25vip\24vif\23ac\22vm\21rf" \ 90 "\17nt\14of\13df\12if\11tf\10sf\7zf\5af\3pf\1cf" 91 92 #define PSL_USER 0x202 /* initial user FLAGS */ 93 94 /* user variable PS bits */ 95 #define PSL_USERMASK (PS_ICC|PS_D|PS_T|PS_V|PS_P|PS_ACHK|PS_NT) 96 97 /* PS bits changeable by the sahf instruction */ 98 #define PSL_LSAHFMASK (PS_ICC|PS_P) 99 100 /* 101 * kernel flags settings 102 */ 103 #define F_OFF 0x2 /* interrupts off */ 104 #define F_ON 0x202 /* interrupts on */ 105 106 #ifndef _ASM 107 typedef int psw_t; 108 #endif 109 110 #include <sys/tss.h> 111 #include <sys/segments.h> /* selector definitions */ 112 113 #define USERMODE(cs) ((uint_t)((cs)&CPL_MASK) != 0) 114 115 #include <sys/spl.h> 116 117 #ifdef __cplusplus 118 } 119 #endif 120 121 #endif /* _IA32_SYS_PSW_H */ 122