Zcd Extension

Implemented Version

1.0.0

Versions

1.0.0
Ratification date

2023-04

Synopsis

Zcd is the existing set of compressed double precision floating point loads and stores: c.fld, c.fldsp, c.fsd, c.fsdsp.

Instructions

The following instructions are added by this extension in the example_rv64_with_overlay configuration:

c.fld

Load double-precision

c.fldsp

Load doubleword into floating-point register from stack

c.fsd

Store double-precision

c.fsdsp

Store double-precision value to stack