diff options
author | Thomas Schwinge <thomas@codesourcery.com> | 2013-12-20 09:29:29 +0100 |
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committer | Thomas Schwinge <thomas@codesourcery.com> | 2013-12-20 09:29:29 +0100 |
commit | a65dd355fb80a05215e15ae97649de52aec885e3 (patch) | |
tree | 81701bb0c6b648630f2bf1729a85d7f5eb49e67b /soft-fp/trunctfxf2.c | |
parent | 296a5732f94abe4d5699dc981e4ccfb950b48cee (diff) | |
parent | b4578bab30f72cddd2cf38abfb39f9c8dc892249 (diff) |
Merge branch 'baseline' into refs/top-bases/tschwinge/Roger_Whittaker
Diffstat (limited to 'soft-fp/trunctfxf2.c')
-rw-r--r-- | soft-fp/trunctfxf2.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/soft-fp/trunctfxf2.c b/soft-fp/trunctfxf2.c new file mode 100644 index 0000000000..750bec1808 --- /dev/null +++ b/soft-fp/trunctfxf2.c @@ -0,0 +1,53 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE extended + Copyright (C) 2007-2013 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, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "extended.h" +#include "quad.h" + +XFtype +__trunctfxf2 (TFtype a) +{ + FP_DECL_EX; + FP_DECL_Q (A); + FP_DECL_E (R); + XFtype r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q (A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_TRUNC (E, Q, 4, 4, R, A); +#else + FP_TRUNC (E, Q, 2, 2, R, A); +#endif + FP_PACK_SEMIRAW_E (r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} |