mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Software floating-point emulation.
|
|
Return an IEEE half converted to IEEE quad
|
|
Copyright (C) 1997-2018 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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.
|
|
|
|
In addition to the permissions in the GNU Lesser General Public
|
|
License, the Free Software Foundation gives you unlimited
|
|
permission to link the compiled version of this file into
|
|
combinations with other programs, and to distribute those
|
|
combinations without any restriction coming from the use of this
|
|
file. (The Lesser General Public License restrictions do apply in
|
|
other respects; for example, they cover modification of the file,
|
|
and distribution when not linked into a combine executable.)
|
|
|
|
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/>. */
|
|
|
|
#define FP_NO_EXACT_UNDERFLOW
|
|
#include "soft-fp.h"
|
|
#include "half.h"
|
|
#include "quad.h"
|
|
|
|
TFtype
|
|
__extendhftf2 (HFtype a)
|
|
{
|
|
FP_DECL_EX;
|
|
FP_DECL_H (A);
|
|
FP_DECL_Q (R);
|
|
TFtype r;
|
|
|
|
FP_INIT_EXCEPTIONS;
|
|
FP_UNPACK_RAW_H (A, a);
|
|
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
|
|
FP_EXTEND (Q, H, 4, 1, R, A);
|
|
#else
|
|
FP_EXTEND (Q, H, 2, 1, R, A);
|
|
#endif
|
|
FP_PACK_RAW_Q (r, R);
|
|
FP_HANDLE_EXCEPTIONS;
|
|
|
|
return r;
|
|
}
|