| /* Software floating-point emulation: convert to fortran nearest. |
| Copyright (C) 1997-2014 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 |
| <http://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; |
| FP_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; |
| } |
