11.1Smatt/*-
21.1Smatt * Copyright (c) 2013 The NetBSD Foundation, Inc.
31.1Smatt * All rights reserved.
41.1Smatt *
51.1Smatt * This code is derived from software contributed to The NetBSD Foundation
61.1Smatt * by Matt Thomas of 3am Software Foundry.
71.1Smatt *
81.1Smatt * Redistribution and use in source and binary forms, with or without
91.1Smatt * modification, are permitted provided that the following conditions
101.1Smatt * are met:
111.1Smatt * 1. Redistributions of source code must retain the above copyright
121.1Smatt *    notice, this list of conditions and the following disclaimer.
131.1Smatt * 2. Redistributions in binary form must reproduce the above copyright
141.1Smatt *    notice, this list of conditions and the following disclaimer in the
151.1Smatt *    documentation and/or other materials provided with the distribution.
161.1Smatt *
171.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
181.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
191.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
201.1Smatt * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
211.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
221.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
231.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
241.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
251.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
261.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
271.1Smatt * POSSIBILITY OF SUCH DAMAGE.
281.1Smatt */
291.1Smatt
301.1Smatt#include <sys/cdefs.h>
311.1Smatt#if defined(LIBC_SCCS) && !defined(lint)
321.1Smatt__RCSID("$NetBSD: __aeabi_fcmpun.c,v 1.1 2013/01/26 07:04:22 matt Exp $");
331.1Smatt#endif /* LIBC_SCCS and not lint */
341.1Smatt
351.1Smatt#include <arm/aeabi.h>
361.1Smatt#include <arm/ieee.h>
371.1Smatt
381.1Smatt#include <math.h>
391.1Smatt
401.1Smatt/*
411.1Smatt * result (1, 0) denotes (?, <=>) [2], use for C99 isunordered()
421.1Smatt */
431.1Smatt
441.1Smattint
451.1Smatt__aeabi_fcmpun(float x, float y)
461.1Smatt{
471.1Smatt	const union ieee_single_u ux = { .sngu_f = x };
481.1Smatt	const union ieee_single_u uy = { .sngu_f = y };
491.1Smatt
501.1Smatt	return (ux.sngu_sng.sng_exp == SNG_EXP_INFNAN
511.1Smatt		&& ux.sngu_sng.sng_frac != 0)
521.1Smatt	    || (uy.sngu_sng.sng_exp == SNG_EXP_INFNAN
531.1Smatt		&& uy.sngu_sng.sng_frac != 0);
541.1Smatt}
55