1840b91ccSNathan Whitehorn /* $NetBSD: fpgetround.c,v 1.3 2002/01/13 21:45:47 thorpej Exp $ */ 2840b91ccSNathan Whitehorn 3d915a14eSPedro F. Giffuni /*- 4*b61a5730SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 5d915a14eSPedro F. Giffuni * 6840b91ccSNathan Whitehorn * Copyright (c) 1999 The NetBSD Foundation, Inc. 7840b91ccSNathan Whitehorn * All rights reserved. 8840b91ccSNathan Whitehorn * 9840b91ccSNathan Whitehorn * This code is derived from software contributed to The NetBSD Foundation 10840b91ccSNathan Whitehorn * by Dan Winship. 11840b91ccSNathan Whitehorn * 12840b91ccSNathan Whitehorn * Redistribution and use in source and binary forms, with or without 13840b91ccSNathan Whitehorn * modification, are permitted provided that the following conditions 14840b91ccSNathan Whitehorn * are met: 15840b91ccSNathan Whitehorn * 1. Redistributions of source code must retain the above copyright 16840b91ccSNathan Whitehorn * notice, this list of conditions and the following disclaimer. 17840b91ccSNathan Whitehorn * 2. Redistributions in binary form must reproduce the above copyright 18840b91ccSNathan Whitehorn * notice, this list of conditions and the following disclaimer in the 19840b91ccSNathan Whitehorn * documentation and/or other materials provided with the distribution. 20840b91ccSNathan Whitehorn * 21840b91ccSNathan Whitehorn * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22840b91ccSNathan Whitehorn * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23840b91ccSNathan Whitehorn * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24840b91ccSNathan Whitehorn * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25840b91ccSNathan Whitehorn * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26840b91ccSNathan Whitehorn * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27840b91ccSNathan Whitehorn * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28840b91ccSNathan Whitehorn * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29840b91ccSNathan Whitehorn * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30840b91ccSNathan Whitehorn * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31840b91ccSNathan Whitehorn * POSSIBILITY OF SUCH DAMAGE. 32840b91ccSNathan Whitehorn * 33840b91ccSNathan Whitehorn */ 34840b91ccSNathan Whitehorn 35840b91ccSNathan Whitehorn #include <sys/cdefs.h> 36840b91ccSNathan Whitehorn __FBSDID("$FreeBSD$"); 37840b91ccSNathan Whitehorn 38840b91ccSNathan Whitehorn #include <sys/types.h> 39840b91ccSNathan Whitehorn #include <ieeefp.h> 40840b91ccSNathan Whitehorn 41840b91ccSNathan Whitehorn #ifndef _SOFT_FLOAT 42840b91ccSNathan Whitehorn fp_rnd_t 43840b91ccSNathan Whitehorn fpgetround() 44840b91ccSNathan Whitehorn { 45840b91ccSNathan Whitehorn u_int64_t fpscr; 46840b91ccSNathan Whitehorn 47840b91ccSNathan Whitehorn __asm__("mffs %0" : "=f"(fpscr)); 48840b91ccSNathan Whitehorn return ((fp_rnd_t)(fpscr & 0x3)); 49840b91ccSNathan Whitehorn } 50840b91ccSNathan Whitehorn #endif 51