1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* This is a software decimal floating point library.
Copyright (C) 2007-2016 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include "dconfig.h"
#include "bid-dpd.h"
#include "decimal128.h"
void __host_to_ieee_128 (_Decimal128 in, decimal128 *out);
void __ieee_to_host_128 (decimal128 in, _Decimal128 *out);
/* The code for converting 128-bit values between DPD and BID presumes
that the 64-bit halves of the 128-bit value are in little-endian
order, so they need swapping on big-endian hosts. */
void
__host_to_ieee_128 (_Decimal128 in, decimal128 *out)
{
#if WORDS_BIGENDIAN
memcpy ((char *) out, (char *) &in + 8, 8);
memcpy ((char *) out + 8, (char *) &in, 8);
#else
memcpy ((char *) out, (char *) &in, 16);
#endif
}
void
__ieee_to_host_128 (decimal128 in, _Decimal128 *out)
{
#if WORDS_BIGENDIAN
memcpy ((char *) out, (char *) &in + 8, 8);
memcpy ((char *) out + 8, (char *) &in, 8);
#else
memcpy ((char *) out, (char *) &in, 16);
#endif
}
|
