diff options
Diffstat (limited to 'target/i386/fpu_helper.c')
| -rw-r--r-- | target/i386/fpu_helper.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/target/i386/fpu_helper.c b/target/i386/fpu_helper.c index 0671de6..10ff903 100644 --- a/target/i386/fpu_helper.c +++ b/target/i386/fpu_helper.c @@ -968,7 +968,10 @@ void helper_frndint(CPUX86State *env) void helper_fscale(CPUX86State *env) { - if (floatx80_is_any_nan(ST1)) { + if (floatx80_invalid_encoding(ST1)) { + float_raise(float_flag_invalid, &env->fp_status); + ST0 = floatx80_default_nan(&env->fp_status); + } else if (floatx80_is_any_nan(ST1)) { ST0 = ST1; if (floatx80_is_signaling_nan(ST0, &env->fp_status)) { float_raise(float_flag_invalid, &env->fp_status); |