On Thu, Sep 20, 2012 at 1:59 AM, Richard Henderson <r...@twiddle.net> wrote:
> On 09/18/2012 05:23 PM, Max Filippov wrote:
>> +uint32_t HELPER(ftoi)(float32 v, uint32_t rounding_mode, uint32_t scale)
>> +{
>> + float_status fp_status = {0};
>> +
>> + set_float_rounding_mode(rounding_mode, &fp_status);
>> + return float32_to_int32(
>> + float32_scalbn(v, scale, &fp_status), &fp_status);
>> +}
>> +
>> +uint32_t HELPER(ftoui)(float32 v, uint32_t rounding_mode, uint32_t scale)
>> +{
>> + float_status fp_status = {0};
>> + float32 res;
>> +
>> + set_float_rounding_mode(rounding_mode, &fp_status);
>> +
>> + res = float32_scalbn(v, scale, &fp_status);
>> +
>> + if (float32_is_neg(v) && !float32_is_any_nan(v)) {
>> + return float32_to_int32(res, &fp_status);
>> + } else {
>> + return float32_to_uint32(res, &fp_status);
>> + }
>> +}
>
> Are you really intending to discard any exceptions raised here?
Yes, as specified in the ISA and as unit tests on Tensilica ISS show.
--
Thanks.
-- Max
