1 /* Store current floating-point environment and clear exceptions. 2 Copyright (C) 1997-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <fenv.h> 20 21 int __feholdexcept(fenv_t * envp)22__feholdexcept (fenv_t *envp) 23 { 24 fenv_t fpsr; 25 /* Save the current state. */ 26 __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); 27 *envp = fpsr; 28 29 /* Set the trap disable bits. */ 30 fpsr |= FE_ALL_EXCEPT; 31 32 /* And clear the exception bits. */ 33 fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13); 34 35 __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr)); 36 37 /* Success. */ 38 return 0; 39 } 40 libm_hidden_def (__feholdexcept) 41 weak_alias (__feholdexcept, feholdexcept) 42 libm_hidden_weak (feholdexcept) 43