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kernel/linux-imx6_3.14.28/arch/mips/math-emu/ieee754m.c 1.38 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * floor, trunc, ceil
   */
  /*
   * MIPS floating point support
   * Copyright (C) 1994-2000 Algorithmics Ltd.
   *
   * ########################################################################
   *
   *  This program is free software; you can distribute it and/or modify it
   *  under the terms of the GNU General Public License (Version 2) as
   *  published by the Free Software Foundation.
   *
   *  This program is distributed in the hope 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.
   *
   *  You should have received a copy of the GNU General Public License along
   *  with this program; if not, write to the Free Software Foundation, Inc.,
   *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
   *
   * ########################################################################
   */
  
  
  #include "ieee754.h"
  
  ieee754dp ieee754dp_floor(ieee754dp x)
  {
  	ieee754dp i;
  
  	if (ieee754dp_lt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
  		return ieee754dp_sub(i, ieee754dp_one(0));
  	else
  		return i;
  }
  
  ieee754dp ieee754dp_ceil(ieee754dp x)
  {
  	ieee754dp i;
  
  	if (ieee754dp_gt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
  		return ieee754dp_add(i, ieee754dp_one(0));
  	else
  		return i;
  }
  
  ieee754dp ieee754dp_trunc(ieee754dp x)
  {
  	ieee754dp i;
  
  	(void) ieee754dp_modf(x, &i);
  	return i;
  }