__vcosbigf.c revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/isa_defs.h>
#ifdef _LITTLE_ENDIAN
#define HI(x) *(1+(int*)x)
#define LO(x) *(unsigned*)x
#else
#define HI(x) *(int*)x
#define LO(x) *(1+(unsigned*)x)
#endif
#ifdef __RESTRICT
#define restrict _Restrict
#else
#define restrict
#endif
extern const double __vlibm_TBL_sincos_hi[], __vlibm_TBL_sincos_lo[];
extern int __vlibm_rem_pio2m(double *, double *, int, int, int);
static const double
zero = 0.0,
one = 1.0,
two24 = 16777216.0,
pp1 = -1.666666666605760465276263943134982554676e-0001,
pp2 = 8.333261209690963126718376566146180944442e-0003,
p1 = -1.666666666666629669805215138920301589656e-0001,
p2 = 8.333333332390951295683993455280336376663e-0003,
p3 = -1.984126237997976692791551778230098403960e-0004,
p4 = 2.753403624854277237649987622848330351110e-0006,
qq1 = -4.999999999977710986407023955908711557870e-0001,
qq2 = 4.166654863857219350645055881018842089580e-0002,
q1 = -4.999999999999931701464060878888294524481e-0001,
q2 = 4.166666666394861917535640593963708222319e-0002,
q3 = -1.388888552656142867832756687736851681462e-0003,
q4 = 2.478519423681460796618128289454530524759e-0005;
void
__vlibm_vcos_bigf(int n, float * restrict x, int stridex, float * restrict y,
int stridey)
{
{
tx = *x;
hx &= ~0x80000000;
continue;
{
nx = 2;
nx = 3;
}
else
{
nx = 1;
}
if (xsb)
{
}
/* now nx and ty[*] are the quadrant and reduced arg */
if (nx & 1)
{
if (hx & 0x80000000)
{
hx &= ~0x80000000;
}
if (hx < 0x3fc40000)
{
a = one + t;
}
else
{
HI(&t) = j;
LO(&t) = 0;
j = ((j - 0x3fc40000) >> 13) & ~3;
a = __vlibm_TBL_sincos_hi[j+1];
a += t;
}
}
else
{
if (hx & 0x80000000)
{
hx &= ~0x80000000;
xsb ^= 0x80000000;
}
if (hx < 0x3fc90000)
{
}
else
{
HI(&t) = j;
LO(&t) = 0;
j = ((j - 0x3fc40000) >> 13) & ~3;
a = __vlibm_TBL_sincos_hi[j];
a += t;
}
}
if (xsb) a = -a;
*y = a;
}
}