1294227Sbr/*- 2294227Sbr * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG> 3294227Sbr * Copyright (c) 2014 The FreeBSD Foundation 4294227Sbr * All rights reserved. 5294227Sbr * 6294227Sbr * Redistribution and use in source and binary forms, with or without 7294227Sbr * modification, are permitted provided that the following conditions 8294227Sbr * are met: 9294227Sbr * 1. Redistributions of source code must retain the above copyright 10294227Sbr * notice, this list of conditions and the following disclaimer. 11294227Sbr * 2. Redistributions in binary form must reproduce the above copyright 12294227Sbr * notice, this list of conditions and the following disclaimer in the 13294227Sbr * documentation and/or other materials provided with the distribution. 14294227Sbr * 15294227Sbr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16294227Sbr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17294227Sbr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18294227Sbr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19294227Sbr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20294227Sbr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21294227Sbr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22294227Sbr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23294227Sbr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24294227Sbr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25294227Sbr * SUCH DAMAGE. 26294227Sbr * 27294227Sbr * $FreeBSD: releng/11.0/lib/libc/riscv/_fpmath.h 294227 2016-01-17 15:21:23Z br $ 28294227Sbr */ 29294227Sbr 30294227Sbrunion IEEEl2bits { 31294227Sbr long double e; 32294227Sbr struct { 33294227Sbr unsigned long manl :64; 34294227Sbr unsigned long manh :48; 35294227Sbr unsigned int exp :15; 36294227Sbr unsigned int sign :1; 37294227Sbr } bits; 38294227Sbr struct { 39294227Sbr unsigned long manl :64; 40294227Sbr unsigned long manh :48; 41294227Sbr unsigned int expsign :16; 42294227Sbr } xbits; 43294227Sbr}; 44294227Sbr 45294227Sbr#define LDBL_NBIT 0 46294227Sbr#define LDBL_IMPLICIT_NBIT 47294227Sbr#define mask_nbit_l(u) ((void)0) 48294227Sbr 49294227Sbr#define LDBL_MANH_SIZE 20 50294227Sbr#define LDBL_MANL_SIZE 32 51294227Sbr 52294227Sbr#define LDBL_TO_ARRAY32(u, a) do { \ 53294227Sbr (a)[0] = (uint32_t)(u).bits.manl; \ 54294227Sbr (a)[1] = (uint32_t)(u).bits.manh; \ 55294227Sbr} while(0) 56294227Sbr 57294227Sbr/* 58294227Sbr * TODO: Due to compiler problem we are temporary using 59294227Sbr * LDBL_PREC == 53. Use code below for LDBL_PREC == 113 60294227Sbr */ 61294227Sbr#if 0 62294227Sbr#define LDBL_MANH_SIZE 48 63294227Sbr#define LDBL_MANL_SIZE 64 64294227Sbr 65294227Sbr#define LDBL_TO_ARRAY32(u, a) do { \ 66294227Sbr (a)[0] = (uint32_t)(u).bits.manl; \ 67294227Sbr (a)[1] = (uint32_t)((u).bits.manl >> 32); \ 68294227Sbr (a)[2] = (uint32_t)(u).bits.manh; \ 69294227Sbr (a)[3] = (uint32_t)((u).bits.manh >> 32); \ 70294227Sbr} while(0) 71294227Sbr#endif 72