From d876f5327985eac3bf3109e9429febc8a8954ff5 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 29 Dec 1999 18:11:48 +0000 Subject: Update. 1999-12-29 Ulrich Drepper * soft-fp/*: Tons of new files to implement floating-point arithmetic in software. Contributed by Richard Henderson, Jakub Jelinek and others. --- soft-fp/sysdeps/sparc/sparc64/qp_qtos.c | 50 +++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 soft-fp/sysdeps/sparc/sparc64/qp_qtos.c (limited to 'soft-fp/sysdeps/sparc/sparc64/qp_qtos.c') diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c new file mode 100644 index 0000000000..630300ea44 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c @@ -0,0 +1,50 @@ +/* Software floating-point emulation. + Return (float)(*a) + 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 "quad.h" + +float _Qp_qtos(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(S,Q,1,4,R,A); +#else + FP_CONV(S,Q,1,2,R,A); +#endif + FP_PACK_S(r, R); + + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtos %%f52, %0 + " : "=&f" (r) : "r" (a) : QP_CLOBBER)); + + return r; +} -- cgit v1.2.3