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File: [cvs.NetBSD.org] / src / lib / libc_fp / gcc-softfloat.c (download)

Revision 1.1, Thu Jul 14 01:59:18 2016 UTC (3 years, 2 months ago) by matt
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9, netbsd-8-base, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, HEAD

Library which implements the softfloat primitives using FP instructions
Currently contains only untested MIPS routines.
XXX move arm libc_vfp to here.

/* $NetBSD: gcc-softfloat.c,v 1.1 2016/07/14 01:59:18 matt Exp $ */
/*-
 * Copyright (c) 2016 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas of 3am Software Foundry.
 *
 * 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.
 */

/*
 * This contain the softfloat primitives used by GCC.
 * It can be used to verify the functions invoked by tGCC to do softfloat.
 * It can also be used to what FP instructions GCC generates to implement the
 * various primitives.  Your arch-dependent code should provide all of these
 * that are easy to implement.  
 */

long long
xfixdfdi(double a)
{
	return (long long)a;
}

int
xfixdfsi(double a)
{
	return (int)a;
}

unsigned long long
xfixunsdfdi(double a)
{
	return (unsigned long long)a;
}

unsigned int
xfixunsdfsi(double a)
{
	return (unsigned int)a;
}

double
xfloatundidf(unsigned long long a)
{
	return (double) a;
}

double
xfloatunsidf(unsigned int a)
{
	return (double) a;
}

double
xfloatdidf(long long a)
{
	return (double) a;
}

double
xfloatsidf(int a)
{
	return (double) a;
}

double
xextendsfdf2(float a)
{
	return (double) a;
}

int
xeqdf2(double a, double b)
{
	return a == b;
}

int
xnedf2(double a, double b)
{
	return a != b;
}

int
xledf2(double a, double b)
{
	return a <= b;
}

int
xgtdf2(double a, double b)
{
	return a > b;
}

int
xltdf2(double a, double b)
{
	return a < b;
}

int
xgedf2(double a, double b)
{
	return a >= b;
}

long long
xfixsfdi(float a)
{
	return (long long)a;
}

int
xfixsfsi(float a)
{
	return (int)a;
}

unsigned long long
xfixunssfdi(float a)
{
	return (unsigned long long)a;
}

unsigned int
xfixunssfsi(float a)
{
	return (unsigned int)a;
}

float
xfloatundisf(unsigned long long a)
{
	return (float) a;
}

float
xfloatunsisf(unsigned int a)
{
	return (float) a;
}

float
xfloatdisf(long long a)
{
	return (float) a;
}

float
xfloatsisf(int a)
{
	return (float) a;
}

float
xtruncdfsf2(double a)
{
	return (float) a;
}

int
xeqsf2(float a, float b)
{
	return a == b;
}

int
xnesf2(float a, float b)
{
	return a != b;
}

int
xlesf2(float a, float b)
{
	return a <= b;
}

int
xgtsf2(float a, float b)
{
	return a > b;
}

int
xltsf2(float a, float b)
{
	return a < b;
}

int
xgesf2(float a, float b)
{
	return a >= b;
}