Subversion Repositories openrisc

/* This is a software decimal floating point library.

   Copyright (C) 2007, 2009  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

}