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author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/libgcc/__negti2.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/libgcc/__negti2.c')
-rw-r--r-- | qemu/roms/openbios/libgcc/__negti2.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/qemu/roms/openbios/libgcc/__negti2.c b/qemu/roms/openbios/libgcc/__negti2.c new file mode 100644 index 000000000..e97cd1228 --- /dev/null +++ b/qemu/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; +} |