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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [frv/] [cmovw.c] - Blame information for rev 247

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1 38 julius
/* Move word library function.
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   Copyright (C) 2000, 2003 Free Software Foundation, Inc.
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   Contributed by Red Hat, Inc.
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   This file is part of GCC.
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   GCC is free software ; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation * either version 2, or (at your option)
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   any later version.
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   GCC is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY ; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with GCC; see the file COPYING.  If not, write to
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   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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   Boston, MA 02110-1301, USA.  */
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/* As a special exception, if you link this library with other files,
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   some of which are compiled with GCC, to produce an executable,
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   this library does not by itself cause the resulting executable
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   to be covered by the GNU General Public License.
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   This exception does not however invalidate any other reasons why
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   the executable file might be covered by the GNU General Public License.  */
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void
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__cmovw (int *dest, const int *src, unsigned len)
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{
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  unsigned i;
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  unsigned num = len >> 2;
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  unsigned xlen = len & ~3;
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  char *dest_byte = (char *)dest;
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  const char *src_byte = (const char *)src;
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  if (dest_byte < src_byte || dest_byte > src_byte+len)
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    {
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      for (i = 0; i < num; i++)
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        dest[i] = src[i];
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      while (len > xlen)
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        {
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          dest_byte[xlen] = src_byte[xlen];
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          xlen++;
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        }
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    }
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  else
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    {
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      while (len-- > 0)
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        dest_byte[len] = src_byte[len];
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    }
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}

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