diff options
| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/openbios/libgcc/__negti2.c | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/openbios/libgcc/__negti2.c')
| -rw-r--r-- | roms/openbios/libgcc/__negti2.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/roms/openbios/libgcc/__negti2.c b/roms/openbios/libgcc/__negti2.c new file mode 100644 index 00000000..e97cd122 --- /dev/null +++ b/roms/openbios/libgcc/__negti2.c @@ -0,0 +1,53 @@ +/* Extracted from gcc-3.4.1/gcc/config/mips/_tilibi.c */ +/* A few TImode functions needed for TFmode emulated arithmetic. + Copyright 2002, 2003 Free Software Foundation, Inc. + Contributed by Alexandre Oliva <aoliva@redhat.com> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include "libgcc.h" + +#if defined(__sparc__) || defined(__ppc__) +#define LIBGCC2_WORDS_BIG_ENDIAN +#endif + +typedef union +{ + struct TIstruct { +#if defined(LIBGCC2_WORDS_BIG_ENDIAN) + DItype high, low; +#else + DItype low, high; +#endif + } s; + TItype ll; +} TIunion; + +TItype +__negti2 (TItype u) +{ + TIunion w; + TIunion uu; + + uu.ll = u; + + w.s.low = -uu.s.low; + w.s.high = -uu.s.high - ((UDItype) w.s.low > 0); + + return w.ll; +} |