ZERO (single-vector)

Zero ZA single-vector groups

The instruction zeroes two or four ZA single-vector groups. The vector numbers forming the single-vector group within each half of or each quarter of the ZA array are selected by the sum of the vector select register and immediate offset, modulo half or quarter the number of ZA array vectors.

The vector group symbol, VGx2 or VGx4, indicates that the ZA operand consists of two or four ZA single-vector groups respectively.

It has encodings from 2 classes: Two ZA single-vectors and Four ZA single-vectors

Two ZA single-vectors
(FEAT_SME2p1)

if !HaveSME2p1() then UNDEFINED; integer v = UInt('010':Rv); integer offset = UInt(off3); constant integer ngrp = 2;

Four ZA single-vectors
(FEAT_SME2p1)

if !HaveSME2p1() then UNDEFINED; integer v = UInt('010':Rv); integer offset = UInt(off3); constant integer ngrp = 4;