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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><!-- hennerik CVSweb $Revision: 1.93 $ --><TITLE>glibc.dead/soft-fp/soft-fp.h - view - 1.1.1.2</TITLE></HEAD><BODY BGCOLOR="#eeeeee"><table width="100%" border=0 cellspacing=0 cellpadding=1 bgcolor="#9999ee"><tr valign=bottom><td><a href="soft-fp.h#rev1.1.1.2"><IMG SRC="/icons/back.gif" ALT="[BACK]" BORDER="0" WIDTH="20" HEIGHT="22"></a> <b>Return to <A HREF="soft-fp.h#rev1.1.1.2">soft-fp.h</A> CVS log</b> <IMG SRC="/icons/text.gif" ALT="[TXT]" BORDER="0" WIDTH="20" HEIGHT="22"></td><td align=right><IMG SRC="/icons/dir.gif" ALT="[DIR]" BORDER="0" WIDTH="20" HEIGHT="22"> <b>Up to  <a href="/cgi-bin/cvsweb.cgi/#dirlist">[Development]</a> / <a href="/cgi-bin/cvsweb.cgi/glibc.dead/#dirlist">glibc.dead</a> / <a href="/cgi-bin/cvsweb.cgi/glibc.dead/soft-fp/#dirlist">soft-fp</a></b></td></tr></table><HR noshade><table width="100%"><tr><td bgcolor="#ffffff">File:  <a href="/cgi-bin/cvsweb.cgi/#dirlist">[Development]</a> / <a href="/cgi-bin/cvsweb.cgi/glibc.dead/#dirlist">glibc.dead</a> / <a href="/cgi-bin/cvsweb.cgi/glibc.dead/soft-fp/#dirlist">soft-fp</a> / <a href="/cgi-bin/cvsweb.cgi/glibc.dead/soft-fp/soft-fp.h">soft-fp.h</a>&nbsp;(<A HREF="/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/soft-fp.h?rev=1.1.1.2" target="cvs_checkout" onClick="window.open('/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/soft-fp.h?rev=1.1.1.2','cvs_checkout','resizeable,scrollbars');"><b>download</b></A>)<BR>Revision <B>1.1.1.2</B> <i>(vendor branch)</i>, <i>Thu Aug  2 11:38:45 2001 UTC</i> (3 years, 4 months ago) by <i>aj</i><BR>Branch: <b>glibc-2001-09-13, MAIN</b><BR>CVS Tags: <b>glibc-pre-merge-2001-09-13, glibc-2001-08-02, HEAD, GLIBC_MAIN</b><BR>Changes since <b>1.1.1.1: +8 -8 lines</b><PRE>Import from main glibc repository at 2001-08-02.</PRE></td></tr></table><HR noshade><PRE>/* Software floating-point emulation. &nbsp; Copyright (C) 1997,1998,1999, 2000 Free Software Foundation, Inc. &nbsp; This file is part of the GNU C Library. &nbsp; Contributed by Richard Henderson (<A HREF="mailto:rth@cygnus.com">rth@cygnus.com</A>), &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Jakub Jelinek (<A HREF="mailto:jj@ultra.linux.cz">jj@ultra.linux.cz</A>), &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;David S. Miller (<A HREF="mailto:davem@redhat.com">davem@redhat.com</A>) and &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Peter Maydell (<A HREF="mailto:pmaydell@chiark.greenend.org.uk">pmaydell@chiark.greenend.org.uk</A>). &nbsp; The GNU C Library is free software; you can redistribute it and/or &nbsp; modify it under the terms of the GNU Lesser General Public &nbsp; License as published by the Free Software Foundation; either &nbsp; version 2.1 of the License, or (at your option) any later version. &nbsp; The GNU C Library is distributed in the hope that it will be useful, &nbsp; but WITHOUT ANY WARRANTY; without even the implied warranty of &nbsp; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. &nbsp;See the GNU &nbsp; Lesser General Public License for more details. &nbsp; You should have received a copy of the GNU Lesser General Public &nbsp; License along with the GNU C Library; if not, write to the Free &nbsp; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA &nbsp; 02111-1307 USA. &nbsp;*/#ifndef SOFT_FP_H#define SOFT_FP_H#include &quot;sfp-machine.h&quot;/* Allow sfp-machine to have its own byte order definitions. */#ifndef __BYTE_ORDER#include &lt;endian.h&gt;#endif#define _FP_WORKBITS &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3#define _FP_WORK_LSB &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; 3)#define _FP_WORK_ROUND &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; 2)#define _FP_WORK_GUARD &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; 1)#define _FP_WORK_STICKY &nbsp; &nbsp; &nbsp; &nbsp; ((_FP_W_TYPE)1 &lt;&lt; 0)#ifndef FP_RND_NEAREST# define FP_RND_NEAREST &nbsp; &nbsp; &nbsp; &nbsp; 0# define FP_RND_ZERO &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1# define FP_RND_PINF &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2# define FP_RND_MINF &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3#ifndef FP_ROUNDMODE# define FP_ROUNDMODE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; FP_RND_NEAREST#endif#endif/* By default don't care about exceptions. */#ifndef FP_EX_INVALID#define FP_EX_INVALID &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0#endif#ifndef FP_EX_OVERFLOW#define FP_EX_OVERFLOW &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0#endif#ifndef FP_EX_UNDERFLOW#define FP_EX_UNDERFLOW &nbsp; &nbsp; &nbsp; &nbsp; #endif#ifndef FP_EX_DIVZERO#define FP_EX_DIVZERO &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0#endif#ifndef FP_EX_INEXACT#define FP_EX_INEXACT &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0#endif#ifndef FP_EX_DENORM#define FP_EX_DENORM &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0#endif#ifdef _FP_DECL_EX#define FP_DECL_EX &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp;int _fex = 0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp;_FP_DECL_EX#else#define FP_DECL_EX int _fex = 0#endif &nbsp;#ifndef FP_INIT_ROUNDMODE#define FP_INIT_ROUNDMODE do {} while (0)#endif#ifndef FP_HANDLE_EXCEPTIONS#define FP_HANDLE_EXCEPTIONS do {} while (0)#endif#ifndef FP_INHIBIT_RESULTS/* By default we write the results always. * sfp-machine may override this and e.g. * check if some exceptions are unmasked * and inhibit it in such a case. */#define FP_INHIBIT_RESULTS 0#endif#define FP_SET_EXCEPTION(ex) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp;_fex |= (ex) &nbsp;#define FP_UNSET_EXCEPTION(ex) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp;_fex &amp;= ~(ex)#define FP_CLEAR_EXCEPTIONS &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp;_fex = 0#define _FP_ROUND_NEAREST(wc, X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\do { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;if ((_FP_FRAC_LOW_##wc(X) &amp; 15) != _FP_WORK_ROUND) &nbsp;\ &nbsp; &nbsp; &nbsp;_FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\} while (0)#define _FP_ROUND_ZERO(wc, X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (void)0#define _FP_ROUND_PINF(wc, X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \do { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;if (!X##_s &amp;&amp; (_FP_FRAC_LOW_##wc(X) &amp; 7)) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp; &nbsp;_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\} while (0)#define _FP_ROUND_MINF(wc, X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \do { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;if (X##_s &amp;&amp; (_FP_FRAC_LOW_##wc(X) &amp; 7)) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp;_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\} while (0)#define _FP_ROUND(wc, X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\do { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;if (_FP_FRAC_LOW_##wc(X) &amp; 7) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;FP_SET_EXCEPTION(FP_EX_INEXACT); &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;switch (FP_ROUNDMODE) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;{ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;case FP_RND_NEAREST: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_ROUND_NEAREST(wc,X); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;case FP_RND_ZERO: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_ROUND_ZERO(wc,X); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;case FP_RND_PINF: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_ROUND_PINF(wc,X); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;case FP_RND_MINF: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_ROUND_MINF(wc,X); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\} while (0)#define FP_CLS_NORMAL &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0#define FP_CLS_ZERO &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1#define FP_CLS_INF &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2#define FP_CLS_NAN &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3#define _FP_CLS_COMBINE(x,y) &nbsp; &nbsp;(((x) &lt;&lt; 2) | (y))#include &quot;op-1.h&quot;#include &quot;op-2.h&quot;#include &quot;op-4.h&quot;#include &quot;op-8.h&quot;#include &quot;op-common.h&quot;/* Sigh. &nbsp;Silly things longlong.h needs. &nbsp;*/#define UWtype &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_W_TYPE#define W_TYPE_SIZE &nbsp; &nbsp; _FP_W_TYPE_SIZEtypedef int QItype __attribute__((mode(QI)));typedef int SItype __attribute__((mode(SI)));typedef int DItype __attribute__((mode(DI)));typedef unsigned int UQItype __attribute__((mode(QI)));typedef unsigned int USItype __attribute__((mode(SI)));typedef unsigned int UDItype __attribute__((mode(DI)));#if _FP_W_TYPE_SIZE == 32typedef unsigned int UHWtype __attribute__((mode(HI)));#elif _FP_W_TYPE_SIZE == 64typedef USItype UHWtype;#endif#ifndef umul_ppmm#include &lt;stdlib/longlong.h&gt;#endif#endif</PRE>

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