1 /* $NetBSD: fixunssfsi_ieee754.c,v 1.3 2013/04/30 01:44:07 matt Exp $ */
3 * Copyright (c) 2011 The NetBSD Foundation, Inc.
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Matt Thomas of 3am Software Foundry.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
34 __RCSID("$NetBSD: fixunssfsi_ieee754.c,v 1.3 2013/04/30 01:44:07 matt Exp $");
35 #endif /* LIBC_SCCS and not lint */
40 #include <machine/ieee.h>
42 #if defined(SOFTFLOAT) || defined(__ARM_EABI__)
43 #include "softfloat/softfloat-for-gcc.h"
46 uint32_t __fixunsgen32(int, bool, size_t, size_t, const uint32_t *);
48 uint32_t __fixunssfsi(float);
51 * Convert float to (unsigned) int. All operations are done module 2^32.
56 const union ieee_single_u sngu
= { .sngu_f
= x
};
57 const uint32_t frac
[(SNG_FRACBITS
+ 31)/32 + 1] = {
59 [1] = sngu
.sngu_sng
.sng_frac
,
63 sngu
.sngu_sng
.sng_exp
- SNG_EXP_BIAS
,
64 sngu
.sngu_sng
.sng_sign
!= 0,
67 &frac
[__arraycount(frac
)-1]);