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Diffstat (limited to 'soft-fp/extendxftf2.c')
-rw-r--r-- | soft-fp/extendxftf2.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/soft-fp/extendxftf2.c b/soft-fp/extendxftf2.c new file mode 100644 index 0000000..af29a2a --- /dev/null +++ b/soft-fp/extendxftf2.c @@ -0,0 +1,53 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Uros Bizjak (ubizjak@gmail.com). + + 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, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "soft-fp.h" +#include "extended.h" +#include "quad.h" + +TFtype __extendxftf2(XFtype a) +{ + FP_DECL_EX; + FP_DECL_E(A); + FP_DECL_Q(R); + TFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_E(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,E,4,4,R,A); +#else + FP_EXTEND(Q,E,2,2,R,A); +#endif + FP_PACK_RAW_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} |