Add support for configuring the size of the floating point unit (fp_word).

For mips, move fp_registers into a separate array of type fp_word[].

1 files changed, 22 insertions, 11 deletions

diff --git a/sim/mips/configure b/sim/mips/configure
index 0eca742..80b7918 100755
--- a/sim/mips/configure
+++ b/sim/mips/configure
@@ -1806,20 +1806,31 @@ case "${target}" in
   *)                    mips_fpu=HARD_FLOATING_POINT ;;
 esac
 
-default_sim_floating_point="$mips_fpu"
+default_sim_float="$mips_fpu"
+default_sim_float_bitsize=""
 # Check whether --enable-sim-float or --disable-sim-float was given.
 if test "${enable_sim_float+set}" = set; then
   enableval="$enable_sim_float"
   case "${enableval}" in
   yes | hard)	sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
   no | soft)	sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
+  32)           sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=32";;
+  64)           sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT -DWITH_TARGET_FLOATING_POINT_BITSIZE=64";;
   *)		{ echo "configure: error: "Unknown value $enableval passed to --enable-sim-float"" 1>&2; exit 1; }; sim_float="";;
 esac
 if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
   echo "Setting float flags = $sim_float" 6>&1
 fi
 else
-  sim_float="-DWITH_FLOATING_POINT=${default_sim_floating_point}"
+  
+sim_float=
+if test x"${default_sim_float}" != x""; then
+  sim_float="-DWITH_FLOATING_POINT=${default_sim_float}"
+fi
+if test x"${default_sim_float_bitsize}" != x""; then
+  sim_float="$sim_float -DWITH_TARGET_FLOATING_POINT_BITSIZE=${default_sim_float_bitsize}"
+fi
+
 fi
 
 
@@ -1931,17 +1942,17 @@ for ac_hdr in string.h strings.h stdlib.h stdlib.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1935: checking for $ac_hdr" >&5
+echo "configure:1946: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1940 "configure"
+#line 1951 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1945: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1956: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1968,7 +1979,7 @@ fi
 done
 
 echo $ac_n "checking for fabs in -lm""... $ac_c" 1>&6
-echo "configure:1972: checking for fabs in -lm" >&5
+echo "configure:1983: checking for fabs in -lm" >&5
 ac_lib_var=`echo m'_'fabs | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1976,7 +1987,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1980 "configure"
+#line 1991 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1987,7 +1998,7 @@ int main() {
 fabs()
 ; return 0; }
 EOF
-if { (eval echo configure:1991: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2002: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2017,12 +2028,12 @@ fi
 for ac_func in aint anint sqrt
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2021: checking for $ac_func" >&5
+echo "configure:2032: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2026 "configure"
+#line 2037 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2045,7 +2056,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2049: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2060: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else