minix/lib/libc/arch/sparc64/softfloat/qp.c
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

285 lines
5 KiB
C

/* $NetBSD: qp.c,v 1.7 2008/04/28 20:22:57 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"
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 function
*/
static float128 __zero = {0x4034000000000000, 0x00000000};
void
_Qp_neg(float128 *c, float128 *a)
{
*c = float128_sub(__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(*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(*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 = (a >> 1) | (a & 1);
*c = int64_to_float128(a);
*c = float128_add(*c, *c);
} else
*c = int64_to_float128(a);
}
void
_Qp_xtoq(float128 *c, long a)
{
*c = int64_to_float128(a);
}