softfloat: Implement run-time-configurable meaning of signaling NaN bit

[mirror_qemu.git] / target-m68k / helper.c

diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index 427cbedfd5e68c0b2299ebeb4d297f9e0ed31441..f52d0e3036da8f488f8cd2dd1c1dcce915ba02cf 100644 (file)
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -558,10 +558,10 @@ float64 HELPER(sub_cmp_f64)(CPUM68KState *env, float64 a, float64 b)
     /* ??? Should flush denormals to zero.  */
     float64 res;
     res = float64_sub(a, b, &env->fp_status);
-    if (float64_is_quiet_nan(res)) {
+    if (float64_is_quiet_nan(res, &env->fp_status)) {
         /* +/-inf compares equal against itself, but sub returns nan.  */
-        if (!float64_is_quiet_nan(a)
-            && !float64_is_quiet_nan(b)) {
+        if (!float64_is_quiet_nan(a, &env->fp_status)
+            && !float64_is_quiet_nan(b, &env->fp_status)) {
             res = float64_zero;
             if (float64_lt_quiet(a, res, &env->fp_status))
                 res = float64_chs(res);