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/* Software floating-point emulation: convert to fortran nearest.
Copyright (C) 1997-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com) and
Jakub Jelinek (jj@ultra.linux.cz).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<https://www.gnu.org/licenses/>. */
#include "local-soft-fp.h"
long
_OtsNintXQ (long al, long ah, long _round)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
unsigned long r;
long s;
/* If bit 3 is set, then integer overflow detection is requested. */
s = _round & 8 ? 1 : -1;
_round = _round & 3;
FP_INIT_ROUNDMODE;
AXP_UNPACK_SEMIRAW_Q(A, a);
/* Build 0.5 * sign(A) */
B_e = _FP_EXPBIAS_Q;
__FP_FRAC_SET_2 (B, 0, 0);
B_s = A_s;
FP_ADD_Q(C, A, B);
_FP_FRAC_SRL_2(C, _FP_WORKBITS);
_FP_FRAC_HIGH_RAW_Q(C) &= ~(_FP_W_TYPE)_FP_IMPLBIT_Q;
FP_TO_INT_Q(r, C, 64, s);
if (s > 0 && (_fex &= FP_EX_INVALID))
FP_HANDLE_EXCEPTIONS;
return r;
}
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