Retro68/gcc/libgcc/config/libbid/_addsub_sd.c
2015-08-28 17:33:40 +02:00

55 lines
1.6 KiB
C

/* Copyright (C) 2007-2015 Free Software Foundation, Inc.
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 3, 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "bid_conf.h"
#include "bid_functions.h"
#include "bid_gcc_intrinsics.h"
_Decimal32
__bid_addsd3 (_Decimal32 x, _Decimal32 y) {
UINT64 x64, y64, res64;
union decimal32 ux, uy, res;
ux.d = x;
uy.d = y;
x64 = __bid32_to_bid64 (ux.i);
y64 = __bid32_to_bid64 (uy.i);
res64 = __bid64_add (x64, y64);
res.i = __bid64_to_bid32 (res64);
return (res.d);
}
_Decimal32
__bid_subsd3 (_Decimal32 x, _Decimal32 y) {
UINT64 x64, y64, res64;
union decimal32 ux, uy, res;
ux.d = x;
uy.d = y;
x64 = __bid32_to_bid64 (ux.i);
y64 = __bid32_to_bid64 (uy.i);
res64 = __bid64_sub (x64, y64);
res.i = __bid64_to_bid32 (res64);
return (res.d);
}