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-rw-r--r--target/sparc/cpu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index adba24af2c..284df950e0 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -814,6 +814,12 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
      * the CPU state struct so it won't get zeroed on reset.
      */
     set_float_2nan_prop_rule(float_2nan_prop_s_ba, &env->fp_status);
+    /* For fused-multiply add, prefer SNaN over QNaN, then C->B->A */
+    set_float_3nan_prop_rule(float_3nan_prop_s_cba, &env->fp_status);
+    /* For inf * 0 + NaN, return the input NaN */
+    set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
+    /* Default NaN value: sign bit clear, all frac bits set */
+    set_float_default_nan_pattern(0b01111111, &env->fp_status);
 
     cpu_exec_realizefn(cs, &local_err);
     if (local_err != NULL) {