diff options
Diffstat (limited to 'target-i386/op_helper.c')
| -rw-r--r-- | target-i386/op_helper.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index fba536f0fb..dce28fa054 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -4174,7 +4174,12 @@ void helper_frndint(void) void helper_fscale(void) { - ST0 = ldexp (ST0, (int)(ST1)); + if (floatx_is_any_nan(ST1)) { + ST0 = ST1; + } else { + int n = floatx_to_int32_round_to_zero(ST1, &env->fp_status); + ST0 = floatx_scalbn(ST0, n, &env->fp_status); + } } void helper_fsin(void) |