target-ppc: fix frsp instruction

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6036 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 2d665e8..7cd589a 100644 (file)
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -1478,6 +1478,7 @@ uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3)
 uint64_t helper_frsp (uint64_t arg)
 {
     CPU_DoubleU farg;
+    float32 f32;
     farg.ll = arg;
 
 #if USE_PRECISE_EMULATION
@@ -1485,10 +1486,12 @@ uint64_t helper_frsp (uint64_t arg)
         /* sNaN square root */
        farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
     } else {
-       farg.d = float64_to_float32(farg.d, &env->fp_status);
+       f32 = float64_to_float32(farg.d, &env->fp_status);
+       farg.d = float32_to_float64(f32, &env->fp_status);
     }
 #else
-    farg.d = float64_to_float32(farg.d, &env->fp_status);
+    f32 = float64_to_float32(farg.d, &env->fp_status);
+    farg.d = float32_to_float64(f32, &env->fp_status);
 #endif
     return farg.ll;
 }