COMPACT

Copy active vector elements to lower-numbered elements

In order of increasing element number, pack active elements from the source vector into increasing consecutive elements of the destination vector, setting any remaining elements to zero.

This instruction is illegal when executed in Streaming SVE mode, unless FEAT_SME_FA64 is implemented and enabled, or FEAT_SME2p2 is implemented.

It has encodings from 2 classes: Byte and halfword and Word and doubleword

Byte and halfword
(FEAT_SVE2p2 || FEAT_SME2p2)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SVE2p2) && !IsFeatureImplemented(FEAT_SME2p2) then EndOfDecode(Decode_UNDEF); constant integer esize = 8 << UInt(sz); constant integer g = UInt(Pg); constant integer n = UInt(Zn); constant integer d = UInt(Zd);

Word and doubleword
(FEAT_SVE || FEAT_SME2p2)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME2p2) then EndOfDecode(Decode_UNDEF); constant integer esize = 32 << UInt(sz); constant integer g = UInt(Pg); constant integer n = UInt(Zn); constant integer d = UInt(Zd);