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Diffstat (limited to 'soft-fp/truncdfsf2.c')
-rw-r--r-- | soft-fp/truncdfsf2.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/soft-fp/truncdfsf2.c b/soft-fp/truncdfsf2.c new file mode 100644 index 0000000000..a97baca61d --- /dev/null +++ b/soft-fp/truncdfsf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Truncate IEEE double into IEEE single + Copyright (C) 1997,1999 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +float __truncdfsf2(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + FP_CONV(S,D,1,2,R,A); +#else + FP_CONV(S,D,1,1,R,A); +#endif + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} |