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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [soft-fp/] [trunctfsf2.c] - Rev 752
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/* Software floating-point emulation. Truncate IEEE quad into IEEE single Copyright (C) 1997,1999,2006 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. 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 "single.h" #include "quad.h" SFtype __trunctfsf2(TFtype a) { FP_DECL_EX; FP_DECL_Q(A); FP_DECL_S(R); SFtype r; FP_INIT_ROUNDMODE; FP_UNPACK_SEMIRAW_Q(A, a); #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q FP_TRUNC(S,Q,1,4,R,A); #else FP_TRUNC(S,Q,1,2,R,A); #endif FP_PACK_SEMIRAW_S(r, R); FP_HANDLE_EXCEPTIONS; return r; }
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