1182219Sjkim/* $NetBSD: fp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */ 2182393Sjkim 3182219Sjkim/*- 4182219Sjkim * Copyright (c) 1995 Mark Brinicombe. 5182219Sjkim * Copyright (c) 1995 Brini. 6182219Sjkim * All rights reserved. 7182219Sjkim * 8182219Sjkim * This code is derived from software written for Brini by Mark Brinicombe 9182393Sjkim * 10199604Sjkim * Redistribution and use in source and binary forms, with or without 11182219Sjkim * modification, are permitted provided that the following conditions 12182219Sjkim * are met: 13182219Sjkim * 1. Redistributions of source code must retain the above copyright 14182219Sjkim * notice, this list of conditions and the following disclaimer. 15182219Sjkim * 2. Redistributions in binary form must reproduce the above copyright 16182219Sjkim * notice, this list of conditions and the following disclaimer in the 17182219Sjkim * documentation and/or other materials provided with the distribution. 18182219Sjkim * 3. All advertising materials mentioning features or use of this software 19182219Sjkim * must display the following acknowledgement: 20182219Sjkim * This product includes software developed by Brini. 21182219Sjkim * 4. The name of the company nor the name of the author may be used to 22182219Sjkim * endorse or promote products derived from this software without specific 23182219Sjkim * prior written permission. 24182219Sjkim * 25182219Sjkim * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 26182219Sjkim * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27182219Sjkim * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28182219Sjkim * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29182219Sjkim * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 30182219Sjkim * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31182393Sjkim * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32199604Sjkim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33199604Sjkim * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34199604Sjkim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35182219Sjkim * SUCH DAMAGE. 36182219Sjkim * 37 * RiscBSD kernel project 38 * 39 * fp.h 40 * 41 * FP info 42 * 43 * Created : 10/10/95 44 * 45 * $FreeBSD$ 46 */ 47 48#ifndef _MACHINE_FP_H 49#define _MACHINE_FP_H 50 51/* 52 * An extended precision floating point number 53 */ 54 55typedef struct fp_extended_precision { 56 u_int32_t fp_exponent; 57 u_int32_t fp_mantissa_hi; 58 u_int32_t fp_mantissa_lo; 59} fp_extended_precision_t; 60 61typedef struct fp_extended_precision fp_reg_t; 62 63/* 64 * Information about the FPE-SP state that is stored in the pcb 65 * 66 * This needs to move and be hidden from userland. 67 */ 68 69struct vfp_state { 70 u_int64_t reg[32]; 71 u_int32_t fpscr; 72}; 73 74/* 75 * Type for a saved FP context, if we want to translate the context to a 76 * user-readable form 77 */ 78 79typedef struct { 80 u_int32_t fpsr; 81 fp_extended_precision_t regs[8]; 82} fp_state_t; 83 84#endif /* _MACHINE_FP_H_ */ 85 86/* End of fp.h */ 87