Zfa Extension

Versions

Version 1.0.0

State

ratified

Ratification date

2023-09

Synopsis

Zfa adds instructions for immediate loads, IEEE 754-2019 minimum and maximum operations, round-to-integer operations, and quiet floating-point comparisons. For RV32D, the Zfa extension also adds instructions to transfer double-precision floating-point values to and from integer registers, and for RV64Q, it adds analogous instructions for quad-precision floating-point values. The Zfa extension depends on the F extension.

Instructions

The following instructions are affected by this extension:

fleq.s

Floating-Point Less Than or Equal Quiet Single-Precision

fltq.s

Floating-Point Less Than Quiet Single-Precision

fli.s

No synopsis available

fmaxm.s

No synopsis available

fminm.s

No synopsis available

fround.s

Floating-point round single-precision float to integer

froundnx.s

Floating-point Round Single-precision to Integer with Inexact