/* Software floating-point emulation. Return (double)(*a) Copyright (C) 1997-2015 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. 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 . */ #include "soft-fp.h" #include "double.h" #include "quad.h" double _Qp_qtod(const long double *a) { FP_DECL_EX; FP_DECL_Q(A); FP_DECL_D(R); double r; FP_INIT_ROUNDMODE; FP_UNPACK_SEMIRAW_QP(A, a); #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q FP_TRUNC(D,Q,2,4,R,A); #else FP_TRUNC(D,Q,1,2,R,A); #endif FP_PACK_SEMIRAW_D(r, R); QP_HANDLE_EXCEPTIONS(__asm ( " ldd [%1], %%f52\n" " ldd [%1+8], %%f54\n" " fqtod %%f52, %0\n" " " : "=&e" (r) : "r" (a) : QP_CLOBBER)); return r; }