1dnl Copyright (C) 1997-2023 Free Software Foundation, Inc. 2dnl 3dnl This program is free software; you can redistribute it and/or modify 4dnl it under the terms of the GNU General Public License as published by 5dnl the Free Software Foundation; either version 3 of the License, or 6dnl (at your option) any later version. 7dnl 8dnl This program is distributed in the hope that it will be useful, 9dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 10dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11dnl GNU General Public License for more details. 12dnl 13dnl You should have received a copy of the GNU General Public License 14dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 15dnl 16dnl --enable-sim-float is for developers of the simulator 17dnl It specifies the presence of hardware floating point 18dnl And optionally the bitsize of the floating point register. 19dnl arg[1] specifies the presence (or absence) of floating point hardware 20dnl arg[2] specifies the number of bits in a floating point register 21AC_DEFUN([SIM_AC_OPTION_FLOAT], 22[ 23default_sim_float="[$1]" 24default_sim_float_bitsize="[$2]" 25AC_ARG_ENABLE(sim-float, 26[AS_HELP_STRING([--enable-sim-float], 27 [Specify that the target processor has floating point hardware])], 28[case "${enableval}" in 29 yes | hard) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";; 30 no | soft) sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";; 31 32) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=32";; 32 64) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=64";; 33 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";; 34esac 35if test x"$silent" != x"yes" && test x"$sim_float" != x""; then 36 echo "Setting float flags = $sim_float" 6>&1 37fi],[ 38sim_float= 39if test x"${default_sim_float}" != x""; then 40 sim_float="-DWITH_FLOATING_POINT=${default_sim_float}" 41fi 42if test x"${default_sim_float_bitsize}" != x""; then 43 sim_float="$sim_float -DWITH_TARGET_FLOATING_POINT_BITSIZE=${default_sim_float_bitsize}" 44fi 45])dnl 46]) 47AC_SUBST(sim_float) 48