84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* $NetBSD: fixdfdi_ieee754.c,v 1.1 2013/08/24 00:51:48 matt Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: fixdfdi_ieee754.c,v 1.1 2013/08/24 00:51:48 matt Exp $");
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#endif /* LIBC_SCCS and not lint */
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#if defined(SOFTFLOAT) || defined(__ARM_EABI__)
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#include "softfloat/softfloat-for-gcc.h"
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#endif
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#include "quad.h"
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#include <limits.h>
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#include <stdbool.h>
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#include <machine/ieee.h>
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/*
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* Convert double to signed quad.
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* Not sure what to do with negative numbers---for now, anything out
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* of range becomes UQUAD_MAX.
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*/
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quad_t
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__fixdfdi(double x)
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{
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const union ieee_double_u ux = { .dblu_d = x };
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signed int exp = ux.dblu_exp - DBL_EXP_BIAS;
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const bool neg = ux.dblu_sign;
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quad_t r;
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if (exp >= 62)
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return neg ? QUAD_MIN : QUAD_MAX;
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r = 1 << DBL_FRACHBITS; /* implicit bit */
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r |= ux.dblu_frach;
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exp -= DBL_FRACHBITS;
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if (exp < 0) {
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r >>= -exp;
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} else if (exp > 0) {
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r <<= DBL_FRACLBITS;
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r |= ux.dblu_fracl;
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exp -= DBL_FRACLBITS;
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if (exp < 0) {
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r >>= -exp;
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} else if (exp > 0) {
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r <<= exp;
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}
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}
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return neg ? -r : r;
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}
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