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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/extended.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="extended.h#rev1.1.1.2"><IMG SRC="/icons/back.gif" ALT="[BACK]" BORDER="0" WIDTH="20" HEIGHT="22"></a> <b>Return to <A HREF="extended.h#rev1.1.1.2">extended.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/extended.h">extended.h</a>&nbsp;(<A HREF="/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/extended.h?rev=1.1.1.2" target="cvs_checkout" onClick="window.open('/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/extended.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; Definitions for IEEE Extended Precision. &nbsp; Copyright (C) 1999 Free Software Foundation, Inc. &nbsp; This file is part of the GNU C Library. &nbsp; Contributed by Jakub Jelinek (<A HREF="mailto:jj@ultra.linux.cz">jj@ultra.linux.cz</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;*/#if _FP_W_TYPE_SIZE &lt; 32#error &quot;Here's a nickel, kid. Go buy yourself a real computer.&quot;#endif#if _FP_W_TYPE_SIZE &lt; 64#define _FP_FRACTBITS_E &nbsp; &nbsp; &nbsp; &nbsp; (4*_FP_W_TYPE_SIZE)#else#define _FP_FRACTBITS_E &nbsp; &nbsp; &nbsp; &nbsp; (2*_FP_W_TYPE_SIZE)#endif#define _FP_FRACBITS_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;64#define _FP_FRACXBITS_E &nbsp; &nbsp; &nbsp; &nbsp; (_FP_FRACTBITS_E - _FP_FRACBITS_E)#define _FP_WFRACBITS_E &nbsp; &nbsp; &nbsp; &nbsp; (_FP_WORKBITS + _FP_FRACBITS_E)#define _FP_WFRACXBITS_E &nbsp; &nbsp; &nbsp; &nbsp;(_FP_FRACTBITS_E - _FP_WFRACBITS_E)#define _FP_EXPBITS_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 15#define _FP_EXPBIAS_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 16383#define _FP_EXPMAX_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;32767#define _FP_QNANBIT_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; (_FP_FRACBITS_E-2) % _FP_W_TYPE_SIZE)#define _FP_IMPLBIT_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; (_FP_FRACBITS_E-1) % _FP_W_TYPE_SIZE)#define _FP_OVERFLOW_E &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;((_FP_W_TYPE)1 &lt;&lt; (_FP_WFRACBITS_E % _FP_W_TYPE_SIZE))#if _FP_W_TYPE_SIZE &lt; 64union _FP_UNION_E{ &nbsp; long double flt; &nbsp; struct  &nbsp; {#if __BYTE_ORDER == __BIG_ENDIAN &nbsp; &nbsp; &nbsp;unsigned long pad1 : _FP_W_TYPE_SIZE; &nbsp; &nbsp; &nbsp;unsigned long pad2 : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E); &nbsp; &nbsp; &nbsp;unsigned long sign : 1; &nbsp; &nbsp; &nbsp;unsigned long exp : _FP_EXPBITS_E; &nbsp; &nbsp; &nbsp;unsigned long frac1 : _FP_W_TYPE_SIZE; &nbsp; &nbsp; &nbsp;unsigned long frac0 : _FP_W_TYPE_SIZE;#else &nbsp; &nbsp; &nbsp;unsigned long frac0 : _FP_W_TYPE_SIZE; &nbsp; &nbsp; &nbsp;unsigned long frac1 : _FP_W_TYPE_SIZE; &nbsp; &nbsp; &nbsp;unsigned exp : _FP_EXPBITS_E; &nbsp; &nbsp; &nbsp;unsigned sign : 1;#endif /* not bigendian */ &nbsp; } bits __attribute__((packed));};#define FP_DECL_E(X) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;_FP_DECL(4,X)#define FP_UNPACK_RAW_E(X, val) &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;union _FP_UNION_E _flo; _flo.flt = (val); &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;X##_f[2] = 0; X##_f[3] = 0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;X##_f[0] = _flo.bits.frac0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;X##_f[1] = _flo.bits.frac1; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;X##_e &nbsp;= _flo.bits.exp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;X##_s &nbsp;= _flo.bits.sign; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;if (!X##_e &amp;&amp; (X##_f[1] || X##_f[0]) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;&amp;&amp; !(X##_f[1] &amp; _FP_IMPLBIT_E)) &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;X##_e++; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;FP_SET_EXCEPTION(FP_EX_DENORM); &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_UNPACK_RAW_EP(X, val) &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;union _FP_UNION_E *_flo = &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;(union _FP_UNION_E *)(val); &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; &nbsp;X##_f[2] = 0; X##_f[3] = 0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;X##_f[0] = _flo-&gt;bits.frac0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;X##_f[1] = _flo-&gt;bits.frac1; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;X##_e &nbsp;= _flo-&gt;bits.exp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;X##_s &nbsp;= _flo-&gt;bits.sign; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;if (!X##_e &amp;&amp; (X##_f[1] || X##_f[0]) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;&amp;&amp; !(X##_f[1] &amp; _FP_IMPLBIT_E)) &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;X##_e++; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp; &nbsp; &nbsp;FP_SET_EXCEPTION(FP_EX_DENORM); &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_PACK_RAW_E(val, X) &nbsp; &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;union _FP_UNION_E _flo; &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; &nbsp;\ &nbsp; &nbsp;if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;else X##_f[1] &amp;= ~(_FP_IMPLBIT_E); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;_flo.bits.frac0 = X##_f[0]; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;_flo.bits.frac1 = X##_f[1]; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp; &nbsp;_flo.bits.exp &nbsp; = X##_e; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;\ &nbsp; &nbsp;_flo.bits.sign &nbsp;= X##_s; &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; &nbsp;\ &nbsp; &nbsp;(val) = _flo.flt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; \ &nbsp;} while (0)
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