📄 x-cvsweb-markup(8)
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><!-- hennerik CVSweb $Revision: 1.93 $ --><TITLE>glibc.dead/soft-fp/double.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="double.h#rev1.1.1.2"><IMG SRC="/icons/back.gif" ALT="[BACK]" BORDER="0" WIDTH="20" HEIGHT="22"></a> <b>Return to <A HREF="double.h#rev1.1.1.2">double.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/double.h">double.h</a> (<A HREF="/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/double.h?rev=1.1.1.2" target="cvs_checkout" onClick="window.open('/cgi-bin/cvsweb.cgi/~checkout~/glibc.dead/soft-fp/double.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. Definitions for IEEE Double Precision Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson (<A HREF="mailto:rth@cygnus.com">rth@cygnus.com</A>), Jakub Jelinek (<A HREF="mailto:jj@ultra.linux.cz">jj@ultra.linux.cz</A>), David S. Miller (<A HREF="mailto:davem@redhat.com">davem@redhat.com</A>) and Peter Maydell (<A HREF="mailto:pmaydell@chiark.greenend.org.uk">pmaydell@chiark.greenend.org.uk</A>). The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */#if _FP_W_TYPE_SIZE < 32#error "Here's a nickel kid. Go buy yourself a real computer."#endif#if _FP_W_TYPE_SIZE < 64#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE)#else#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE#endif#define _FP_FRACBITS_D 53#define _FP_FRACXBITS_D (_FP_FRACTBITS_D - _FP_FRACBITS_D)#define _FP_WFRACBITS_D (_FP_WORKBITS + _FP_FRACBITS_D)#define _FP_WFRACXBITS_D (_FP_FRACTBITS_D - _FP_WFRACBITS_D)#define _FP_EXPBITS_D 11#define _FP_EXPBIAS_D 1023#define _FP_EXPMAX_D 2047#define _FP_QNANBIT_D \ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE)#define _FP_IMPLBIT_D \ ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE)#define _FP_OVERFLOW_D \ ((_FP_W_TYPE)1 << _FP_WFRACBITS_D % _FP_W_TYPE_SIZE)#if _FP_W_TYPE_SIZE < 64union _FP_UNION_D{ double flt; struct {#if __BYTE_ORDER == __BIG_ENDIAN unsigned sign : 1; unsigned exp : _FP_EXPBITS_D; unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; unsigned frac0 : _FP_W_TYPE_SIZE;#else unsigned frac0 : _FP_W_TYPE_SIZE; unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; unsigned exp : _FP_EXPBITS_D; unsigned sign : 1;#endif } bits __attribute__((packed));};#define FP_DECL_D(X) _FP_DECL(2,X)#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_2(D,X,val)#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_2_P(D,X,val)#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_2(D,val,X)#define FP_PACK_RAW_DP(val,X) \ do { \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_2_P(D,val,X); \ } while (0)#define FP_UNPACK_D(X,val) \ do { \ _FP_UNPACK_RAW_2(D,X,val); \ _FP_UNPACK_CANONICAL(D,2,X); \ } while (0)#define FP_UNPACK_DP(X,val) \ do { \ _FP_UNPACK_RAW_2_P(D,X,val); \ _FP_UNPACK_CANONICAL(D,2,X); \ } while (0)#define FP_PACK_D(val,X) \ do { \ _FP_PACK_CANONICAL(D,2,X); \ _FP_PACK_RAW_2(D,val,X); \ } while (0)#define FP_PACK_DP(val,X) \ do { \ _FP_PACK_CANONICAL(D,2,X); \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_2_P(D,val,X); \ } while (0)#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,2,X)#define FP_NEG_D(R,X) _FP_NEG(D,2,R,X)#define FP_ADD_D(R,X,Y) _FP_ADD(D,2,R,X,Y)#define FP_SUB_D(R,X,Y) _FP_SUB(D,2,R,X,Y)#define FP_MUL_D(R,X,Y) _FP_MUL(D,2,R,X,Y)#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y)#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X)#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q)#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un)#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y)#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,2,r,X,rsz,rsg)#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,2,X,r,rs,rt)#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_2(X)#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_2(X)#elseunion _FP_UNION_D{ double flt; struct {#if __BYTE_ORDER == __BIG_ENDIAN unsigned sign : 1; unsigned exp : _FP_EXPBITS_D; unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);#else unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0); unsigned exp : _FP_EXPBITS_D; unsigned sign : 1;#endif } bits __attribute__((packed));};#define FP_DECL_D(X) _FP_DECL(1,X)#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_1(D,X,val)#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_1_P(D,X,val)#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_1(D,val,X)#define FP_PACK_RAW_DP(val,X) \ do { \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_1_P(D,val,X); \ } while (0)#define FP_UNPACK_D(X,val) \ do { \ _FP_UNPACK_RAW_1(D,X,val); \ _FP_UNPACK_CANONICAL(D,1,X); \ } while (0)#define FP_UNPACK_DP(X,val) \ do { \ _FP_UNPACK_RAW_1_P(D,X,val); \ _FP_UNPACK_CANONICAL(D,1,X); \ } while (0)#define FP_PACK_D(val,X) \ do { \ _FP_PACK_CANONICAL(D,1,X); \ _FP_PACK_RAW_1(D,val,X); \ } while (0)#define FP_PACK_DP(val,X) \ do { \ _FP_PACK_CANONICAL(D,1,X); \ if (!FP_INHIBIT_RESULTS) \ _FP_PACK_RAW_1_P(D,val,X); \ } while (0)#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,1,X)#define FP_NEG_D(R,X) _FP_NEG(D,1,R,X)#define FP_ADD_D(R,X,Y) _FP_ADD(D,1,R,X,Y)#define FP_SUB_D(R,X,Y) _FP_SUB(D,1,R,X,Y)#define FP_MUL_D(R,X,Y) _FP_MUL(D,1,R,X,Y)#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y)#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X)#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by the target machine. */#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,1,r,X,Y,un)#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,1,r,X,Y)#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,1,r,X,rsz,rsg)#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,1,X,r,rs,rt)#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_1(X)#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_1(X)#endif /* W_TYPE_SIZE < 64 */</PRE>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -