/* See the import.pl script for potential modifications */
/* s_frexpf.c -- Simple version of s_frexp.c.
 * Conversion to Simple by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  *
  * Developed at SunPro, a Sun Microsystems, Inc. business.
  * Permission to use, copy, modify, and distribute this
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
  */

#if defined(LIBM_SCCS) && !defined(lint)
static char rcsid[] = "$NetBSD: s_frexpf.c,v 1.5f 1995/05/10 20:47:26 jtc Exp $";
#endif

#include "SMath.h"
#include "math_private.h"

namespace streflop_libm {
#ifdef __STDC__
	static const Simple
#else
	static Simple
#endif
		two25 = 3.3554432000e+07f; /* 0x4c000000 */

#ifdef __STDC__
	Simple __frexpf(Simple x, int *eptr)
#else
	Simple __frexpf(x, eptr)
		Simple x; int *eptr;
#endif
	{
		int32_t hx, ix;
		GET_FLOAT_WORD(hx, x);
		ix = 0x7fffffff & hx;
		*eptr = 0;
		if (ix >= 0x7f800000 || (ix == 0)) return x;	/* 0,inf,nan */
		if (ix < 0x00800000) {		/* subnormal */
			x *= two25;
			GET_FLOAT_WORD(hx, x);
			ix = hx & 0x7fffffff;
			*eptr = -25;
		}
		*eptr += (ix >> 23) - 126;
		hx = (hx & 0x807fffff) | 0x3f000000;
		SET_FLOAT_WORD(x, hx);
		return x;
	}
	weak_alias(__frexpf, frexpf)
}
