Zcd Extension Versions 1.0.0 State ratified 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 affected by this extension: 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