Nios II Custom Instruction User Guide

ID 683242
Date 4/27/2020
Document Table of Contents

5.3.3. Faithful Rounding

Faithful Rounding rounds results to either the upper or lower nearest single-precision numbers. Therefore, Faithful Rounding produces one of two possible values. The choice between the two is not defined.

Faithful Rounding has a maximum error of one ULP. Errors are not guaranteed to be evenly distributed.

Note: Faithful Rounding mode is not defined by IEEE 754.