/****************************************************************************
 * libs/libc/machine/arm/armv8-m/arch_floorf.c
 *
 *   Copyright (c) 2011, 2012 ARM Ltd.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the company may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <math.h>

/****************************************************************************
 * Public Functions
 ****************************************************************************/

#if __ARM_ARCH >= 8 && !defined (__SOFTFP__)

float floorf(float x)
{
  float result;
  asm volatile("vrintm.f32\t%0, %1" : "=t"(result) : "t"(x));
  return result;
}

#else
#  warning floorf() not built
#endif