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1 /* This is a software decimal floating point library.
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2 Copyright (C) 2007, 2009 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 /* This implements IEEE 754R decimal floating point arithmetic, but
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26 does not provide a mechanism for setting the rounding mode, or for
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27 generating or handling exceptions. Conversions between decimal
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28 floating point types and other types depend on C library functions.
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29
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30 Contributed by Ben Elliston <bje@au.ibm.com>. */
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31
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32 /* The intended way to use this file is to make two copies, add `#define '
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33 to one copy, then compile both copies and add them to libgcc.a. */
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34
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35 #include <string.h>
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36 #include "bid-dpd.h"
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37 #include "decimal64.h"
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38
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39 void __host_to_ieee_64 (_Decimal64 in, decimal64 *out);
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40 void __ieee_to_host_64 (decimal64 in, _Decimal64 *out);
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41
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42 void
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43 __host_to_ieee_64 (_Decimal64 in, decimal64 *out)
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44 {
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45 memcpy ((char *) out, (char *) &in, 8);
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46 }
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47
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48 void
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49 __ieee_to_host_64 (decimal64 in, _Decimal64 *out)
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50 {
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51 memcpy ((char *) out, (char *) &in, 8);
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52 }
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