Return to __negti2.c CVS log

Up to [Qemu by Fabrice Bellard] / qemu / roms / openbios / libgcc

Annotation of qemu/roms/openbios/libgcc/__negti2.c, revision 1.1.1.1

1.1       root        1: /* Extracted from gcc-3.4.1/gcc/config/mips/_tilibi.c */
                      2: /* A few TImode functions needed for TFmode emulated arithmetic.
                      3:    Copyright 2002, 2003 Free Software Foundation, Inc.
                      4:    Contributed by Alexandre Oliva <[email protected]>
                      5: 
                      6: This file is part of GCC.
                      7: 
                      8: GCC is free software; you can redistribute it and/or modify
                      9: it under the terms of the GNU General Public License as published by
                     10: the Free Software Foundation; either version 2, or (at your option)
                     11: any later version.
                     12: 
                     13: GCC is distributed in the hope that it will be useful,
                     14: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: GNU General Public License for more details.
                     17: 
                     18: You should have received a copy of the GNU General Public License
                     19: along with GCC; see the file COPYING.  If not, write to
                     20: the Free Software Foundation, 59 Temple Place - Suite 330,
                     21: Boston, MA 02111-1307, USA.  */
                     22: 
                     23: #include "libgcc.h"
                     24: 
                     25: #if defined(__sparc__) || defined(__ppc__)
                     26: #define LIBGCC2_WORDS_BIG_ENDIAN
                     27: #endif
                     28: 
                     29: typedef union
                     30: {
                     31:   struct TIstruct {
                     32: #if defined(LIBGCC2_WORDS_BIG_ENDIAN)
                     33:     DItype high, low;
                     34: #else
                     35:     DItype low, high;
                     36: #endif
                     37:   } s;
                     38:   TItype ll;
                     39: } TIunion;
                     40: 
                     41: TItype
                     42: __negti2 (TItype u)
                     43: {
                     44:   TIunion w;
                     45:   TIunion uu;
                     46: 
                     47:   uu.ll = u;
                     48: 
                     49:   w.s.low = -uu.s.low;
                     50:   w.s.high = -uu.s.high - ((UDItype) w.s.low > 0);
                     51: 
                     52:   return w.ll;
                     53: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.