sysdeps/riscv/rvf/get-rounding-mode.h

   1 /* Determine floating-point rounding mode within libc.  RISC-V version.
   2    Copyright (C) 2015-2018 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _RISCV_GET_ROUNDING_MODE_H
  20 #define _RISCV_GET_ROUNDING_MODE_H
  21
  22 /* Return the floating-point rounding mode.  */
  23
  24 static inline int
  25 get_rounding_mode (void)
  26 {
  27   int rm;
  28   asm volatile ("frrm %0" : "=r" (rm));
  29   return rm;
  30 }
  31
  32 #endif /* get-rounding-mode.h */