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| Source at commit 2862 created 7 years 25 days ago. By ifabio, Tag 2.3 release, bump svn to 2.4 | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. The rights granted to you under the License␊ |
| 10 | * may not be used to create, or enable the creation or redistribution of,␊ |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
| 13 | * terms of an Apple operating system software license agreement.␊ |
| 14 | * ␊ |
| 15 | * Please obtain a copy of the License at␊ |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
| 17 | * ␊ |
| 18 | * The Original Code and all software distributed under the License are␊ |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 23 | * Please see the License for the specific language governing rights and␊ |
| 24 | * limitations under the License.␊ |
| 25 | * ␊ |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
| 27 | */␊ |
| 28 | /*␊ |
| 29 | * @OSF_COPYRIGHT@␊ |
| 30 | */␊ |
| 31 | /* ␊ |
| 32 | * Mach Operating System␊ |
| 33 | * Copyright (c) 1992-1989 Carnegie Mellon University␊ |
| 34 | * All Rights Reserved.␊ |
| 35 | * ␊ |
| 36 | * Permission to use, copy, modify and distribute this software and its␊ |
| 37 | * documentation is hereby granted, provided that both the copyright␊ |
| 38 | * notice and this permission notice appear in all copies of the␊ |
| 39 | * software, derivative works or modified versions, and any portions␊ |
| 40 | * thereof, and that both notices appear in supporting documentation.␊ |
| 41 | * ␊ |
| 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"␊ |
| 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR␊ |
| 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.␊ |
| 45 | * ␊ |
| 46 | * Carnegie Mellon requests users of this software to return to␊ |
| 47 | * ␊ |
| 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU␊ |
| 49 | * School of Computer Science␊ |
| 50 | * Carnegie Mellon University␊ |
| 51 | * Pittsburgh PA 15213-3890␊ |
| 52 | * ␊ |
| 53 | * any improvements or extensions that they make and grant Carnegie Mellon␊ |
| 54 | * the rights to redistribute these changes.␊ |
| 55 | */␊ |
| 56 | /*␊ |
| 57 | */␊ |
| 58 | ␊ |
| 59 | #ifndef␉_I386_FP_SAVE_H_␊ |
| 60 | #define␉_I386_FP_SAVE_H_␊ |
| 61 | ␊ |
| 62 | ␊ |
| 63 | /* note when allocating this data structure, it must be 16 byte aligned. */␊ |
| 64 | struct x86_fx_save {␊ |
| 65 | unsigned short fx_control; /* control */␊ |
| 66 | unsigned short fx_status; /* status */␊ |
| 67 | unsigned char ␉fx_tag; /* register tags */␊ |
| 68 | unsigned char␉fx_bbz1;␉/* better be zero when calling fxrtstor */␊ |
| 69 | unsigned short fx_opcode;␊ |
| 70 | unsigned int fx_eip; /* eip instruction */␊ |
| 71 | unsigned short fx_cs; /* cs instruction */␊ |
| 72 | unsigned short fx_bbz2;␉/* better be zero when calling fxrtstor */ ␊ |
| 73 | unsigned int fx_dp; /* data address */␊ |
| 74 | unsigned short fx_ds; /* data segment */␊ |
| 75 | unsigned short fx_bbz3;␉/* better be zero when calling fxrtstor */␊ |
| 76 | unsigned int ␉fx_MXCSR;␊ |
| 77 | unsigned int ␉fx_MXCSR_MASK;␊ |
| 78 | unsigned short fx_reg_word[8][8]; /* STx/MMx registers */␊ |
| 79 | unsigned short fx_XMM_reg[8][16];␉/* XMM0-XMM15 on 64 bit processors */␊ |
| 80 | /* XMM0-XMM7 on 32 bit processors... unused storage reserved */␊ |
| 81 | unsigned char ␉fx_reserved[16*6];␉/* reserved by intel for future expansion */␊ |
| 82 | };␊ |
| 83 | ␊ |
| 84 | ␊ |
| 85 | /*␊ |
| 86 | * Control register␊ |
| 87 | */␊ |
| 88 | #define␉FPC_IE␉␉0x0001␉␉/* enable invalid operation␊ |
| 89 | ␉␉␉␉␉ exception */␊ |
| 90 | #define FPC_IM␉␉FPC_IE␊ |
| 91 | #define␉FPC_DE␉␉0x0002␉␉/* enable denormalized operation␊ |
| 92 | ␉␉␉␉␉ exception */␊ |
| 93 | #define FPC_DM␉␉FPC_DE␊ |
| 94 | #define␉FPC_ZE␉␉0x0004␉␉/* enable zero-divide exception */␊ |
| 95 | #define FPC_ZM␉␉FPC_ZE␊ |
| 96 | #define␉FPC_OE␉␉0x0008␉␉/* enable overflow exception */␊ |
| 97 | #define FPC_OM␉␉FPC_OE␊ |
| 98 | #define␉FPC_UE␉␉0x0010␉␉/* enable underflow exception */␊ |
| 99 | #define␉FPC_PE␉␉0x0020␉␉/* enable precision exception */␊ |
| 100 | #define␉FPC_PC␉␉0x0300␉␉/* precision control: */␊ |
| 101 | #define␉FPC_PC_24␉0x0000␉␉␉/* 24 bits */␊ |
| 102 | #define␉FPC_PC_53␉0x0200␉␉␉/* 53 bits */␊ |
| 103 | #define␉FPC_PC_64␉0x0300␉␉␉/* 64 bits */␊ |
| 104 | #define␉FPC_RC␉␉0x0c00␉␉/* rounding control: */␊ |
| 105 | #define␉FPC_RC_RN␉0x0000␉␉␉/* round to nearest or even */␊ |
| 106 | #define␉FPC_RC_RD␉0x0400␉␉␉/* round down */␊ |
| 107 | #define␉FPC_RC_RU␉0x0800␉␉␉/* round up */␊ |
| 108 | #define␉FPC_RC_CHOP␉0x0c00␉␉␉/* chop */␊ |
| 109 | #define␉FPC_IC␉␉0x1000␉␉/* infinity control (obsolete) */␊ |
| 110 | #define␉FPC_IC_PROJ␉0x0000␉␉␉/* projective infinity */␊ |
| 111 | #define␉FPC_IC_AFF␉0x1000␉␉␉/* affine infinity (std) */␊ |
| 112 | ␊ |
| 113 | /*␊ |
| 114 | * Status register␊ |
| 115 | */␊ |
| 116 | #define␉FPS_IE␉␉0x0001␉␉/* invalid operation */␊ |
| 117 | #define␉FPS_DE␉␉0x0002␉␉/* denormalized operand */␊ |
| 118 | #define␉FPS_ZE␉␉0x0004␉␉/* divide by zero */␊ |
| 119 | #define␉FPS_OE␉␉0x0008␉␉/* overflow */␊ |
| 120 | #define␉FPS_UE␉␉0x0010␉␉/* underflow */␊ |
| 121 | #define␉FPS_PE␉␉0x0020␉␉/* precision */␊ |
| 122 | #define␉FPS_SF␉␉0x0040␉␉/* stack flag */␊ |
| 123 | #define␉FPS_ES␉␉0x0080␉␉/* error summary */␊ |
| 124 | #define␉FPS_C0␉␉0x0100␉␉/* condition code bit 0 */␊ |
| 125 | #define␉FPS_C1␉␉0x0200␉␉/* condition code bit 1 */␊ |
| 126 | #define␉FPS_C2␉␉0x0400␉␉/* condition code bit 2 */␊ |
| 127 | #define␉FPS_TOS␉␉0x3800␉␉/* top-of-stack pointer */␊ |
| 128 | #define␉FPS_TOS_SHIFT␉11␊ |
| 129 | #define␉FPS_C3␉␉0x4000␉␉/* condition code bit 3 */␊ |
| 130 | #define␉FPS_BUSY␉0x8000␉␉/* FPU busy */␊ |
| 131 | ␊ |
| 132 | /*␊ |
| 133 | * Kind of floating-point support provided by kernel.␊ |
| 134 | */␊ |
| 135 | #define␉FP_NO␉␉0␉␉/* no floating point */␊ |
| 136 | #define␉FP_SOFT␉␉1␉␉/* software FP emulator */␊ |
| 137 | #define␉FP_287␉␉2␉␉/* 80287 */␊ |
| 138 | #define␉FP_387␉␉3␉␉/* 80387 or 80486 */␊ |
| 139 | #define FP_FXSR␉␉4␉␉/* Fast save/restore SIMD Extension */␊ |
| 140 | ␊ |
| 141 | #endif␉/* _I386_FP_SAVE_H_ */␊ |
| 142 | |
