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/* $NetBSD: qp.c,v 1.11 2014/02/02 08:14:39 martin Exp $ */
/*-
* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <memory.h>
#include "milieu.h"
#include "softfloat.h"
int printf(const char *, ...);
void _Qp_add(float128 *c, float128 *a, float128 *b);
int _Qp_cmp(float128 *a, float128 *b);
int _Qp_cmpe(float128 *a, float128 *b);
void _Qp_div(float128 *c, float128 *a, float128 *b);
void _Qp_dtoq(float128 *c, double a);
int _Qp_feq(float128 *a, float128 *b);
int _Qp_fge(float128 *a, float128 *b);
int _Qp_fgt(float128 *a, float128 *b);
int _Qp_fle(float128 *a, float128 *b);
int _Qp_flt(float128 *a, float128 *b);
int _Qp_fne(float128 *a, float128 *b);
void _Qp_itoq(float128 *c, int a);
void _Qp_mul(float128 *c, float128 *a, float128 *b);
void _Qp_neg(float128 *c, float128 *a);
double _Qp_qtod(float128 *a);
int _Qp_qtoi(float128 *a);
float _Qp_qtos(float128 *a);
unsigned int _Qp_qtoui(float128 *a);
unsigned long _Qp_qtoux(float128 *a);
long _Qp_qtox(float128 *a);
void _Qp_sqrt(float128 *c, float128 *a);
void _Qp_stoq(float128 *c, float a);
void _Qp_sub(float128 *c, float128 *a, float128 *b);
void _Qp_uitoq(float128 *c, unsigned int a);
void _Qp_uxtoq(float128 *c, unsigned long a);
void _Qp_xtoq(float128 *c, long a);
void
_Qp_add(float128 *c, float128 *a, float128 *b)
{
*c = float128_add(*a, *b);
}
int
_Qp_cmp(float128 *a, float128 *b)
{
if (float128_eq(*a, *b))
return 0;
if (float128_le(*a, *b))
return 1;
return 2;
}
/*
* XXX
*/
int
_Qp_cmpe(float128 *a, float128 *b)
{
return _Qp_cmp(a, b);
}
void
_Qp_div(float128 *c, float128 *a, float128 *b)
{
*c = float128_div(*a, *b);
}
void
_Qp_dtoq(float128 *c, double a)
{
float64 _b;
memcpy (&_b, &a, sizeof(float64));
*c = float64_to_float128(_b);
}
int
_Qp_feq(float128 *a, float128 *b)
{
return float128_eq(*a, *b);
}
int
_Qp_fge(float128 *a, float128 *b)
{
return float128_le(*b, *a);
}
int
_Qp_fgt(float128 *a, float128 *b)
{
return float128_lt(*b, *a);
}
int
_Qp_fle(float128 *a, float128 *b)
{
return float128_le(*a, *b);
}
int
_Qp_flt(float128 *a, float128 *b)
{
return float128_lt(*a, *b);
}
int
_Qp_fne(float128 *a, float128 *b)
{
return !float128_eq(*a, *b);
}
void
_Qp_itoq(float128 *c, int a)
{
*c = int32_to_float128(a);
}
void
_Qp_mul(float128 *c, float128 *a, float128 *b)
{
*c = float128_mul(*a, *b);
}
/*
* XXX need corresponding softfloat functions
*/
static float128 __sf128_zero = {0x4034000000000000, 0x00000000};
static float128 __sf128_one = {0x3fff000000000000, 0};
void
_Qp_neg(float128 *c, float128 *a)
{
*c = float128_sub(__sf128_zero, *a);
}
double
_Qp_qtod(float128 *a)
{
float64 _c;
double c;
_c = float128_to_float64(*a);
memcpy(&c, &_c, sizeof(double));
return c;
}
int
_Qp_qtoi(float128 *a)
{
return float128_to_int32_round_to_zero(*a);
}
float
_Qp_qtos(float128 *a)
{
float c;
float32 _c;
_c = float128_to_float32(*a);
memcpy(&c, &_c, sizeof(_c));
return c;
}
unsigned int
_Qp_qtoui(float128 *a)
{
return (unsigned int)float128_to_int64_round_to_zero(*a);
}
unsigned long
_Qp_qtoux(float128 *a)
{
return (unsigned long)float128_to_uint64_round_to_zero(*a);
}
long
_Qp_qtox(float128 *a)
{
return (long)float128_to_int64_round_to_zero(*a);
}
void
_Qp_sqrt(float128 *c, float128 *a)
{
*c = float128_sqrt(*a);
}
void
_Qp_stoq(float128 *c, float a)
{
float32 _a;
memcpy(&_a, &a, sizeof(a));
*c = float32_to_float128(_a);
}
void
_Qp_sub(float128 *c, float128 *a, float128 *b)
{
*c = float128_sub(*a, *b);
}
void
_Qp_uitoq(float128 *c, unsigned int a)
{
*c = int64_to_float128(a);
}
void
_Qp_uxtoq(float128 *c, unsigned long a)
{
if (a & 0x8000000000000000ULL) {
/* a would not fit in a signed conversion */
*c = int64_to_float128((long long)(a>>1));
*c = float128_add(*c, *c);
if (a & 1)
*c = float128_add(*c, __sf128_one);
} else {
*c = int64_to_float128((long long)a);
}
}
void
_Qp_xtoq(float128 *c, long a)
{
*c = int64_to_float128((long long)a);
}
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