On Mon, Mar 23, 2026 at 5:29 PM Taylor Simpson <ltaylorsimpson@gmail.com> wrote:
>> +/*
>> + * IEEE - FP Reduce instructions
>> + */
>> +uint32_t fp_vdmpy(uint16_t a1, uint16_t a2, uint16_t a3, uint16_t a4,
>> +                  float_status *fp_status);
>> +uint32_t fp_vdmpy_acc(uint32_t acc, uint16_t a1, uint16_t a2, uint16_t a3,
>> +                      uint16_t a4, float_status *fp_status);
>> +
>
>
> Consider using macros similar to the ones in the .c file to create these protos.

Hmm, I think in this case, the boilerplate size will outweight the
benefit of the macros.

>
> Do these instructions interact with the FP bits in USR (e.g., rounding mode, FP exceptions)?

They do not. I'll add a new env->hvx_fp_status and use that for the
default nan. This way we can avoid messing up with the scalar
fp_status.