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author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
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committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/openbios/libgcc/__negti2.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
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 000000000..e97cd1228 --- /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; +} |