/* Store current floating-point environment. Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson , 1997 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include int __fegetenv (fenv_t *envp) { unsigned long int fpcr; unsigned long int swcr; /* Get status from software and hardware. Note that we don't need an excb because the callsys is an implied trap barrier. */ swcr = __ieee_get_fp_control (); __asm__ __volatile__ ("mf_fpcr %0" : "=f" (fpcr)); /* Merge the two bits of information. */ *envp = ((fpcr & FPCR_ROUND_MASK) | (swcr & SWCR_ALL_MASK)); /* Success. */ return 0; } #include #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) strong_alias (__fegetenv, __old_fegetenv) compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1); #endif versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);