sim/m4/sim_ac_option_reserved_bits.m4

   1 dnl   Copyright (C) 1997-2021 Free Software Foundation, Inc.
   2 dnl
   3 dnl This program is free software; you can redistribute it and/or modify
   4 dnl it under the terms of the GNU General Public License as published by
   5 dnl the Free Software Foundation; either version 3 of the License, or
   6 dnl (at your option) any later version.
   7 dnl
   8 dnl This program is distributed in the hope that it will be useful,
   9 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 dnl GNU General Public License for more details.
  12 dnl
  13 dnl You should have received a copy of the GNU General Public License
  14 dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 AC_DEFUN([SIM_AC_OPTION_RESERVED_BITS],
  16 [
  17 default_sim_reserved_bits="ifelse([$1],,1,[$1])"
  18 AC_ARG_ENABLE(sim-reserved-bits,
  19 [AS_HELP_STRING([--enable-sim-reserved-bits],
  20                 [Specify whether to check reserved bits in instruction])],
  21 [case "${enableval}" in
  22   yes)  sim_reserved_bits="-DWITH_RESERVED_BITS=1";;
  23   no)   sim_reserved_bits="-DWITH_RESERVED_BITS=0";;
  24   *)    AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved_bits="";;
  25 esac
  26 if test x"$silent" != x"yes" && test x"$sim_reserved_bits" != x""; then
  27   echo "Setting reserved flags = $sim_reserved_bits" 6>&1
  28 fi],[sim_reserved_bits="-DWITH_RESERVED_BITS=${default_sim_reserved_bits}"])dnl
  29 ])
  30 AC_SUBST(sim_reserved_bits)