SRSHL (multiple and single vector)

Multi-vector signed rounding shift left by vector

Shift the signed elements of the two or four first source vectors by corresponding elements of the second source vector and destructively place the rounded results in the corresponding elements of the two or four first source vectors. A positive shift amount performs a left shift, otherwise a right shift by the negated shift amount is performed.

This instruction is unpredicated.

It has encodings from 2 classes: Two registers and Four registers

Two registers
(FEAT_SME2)

if !HaveSME2() then UNDEFINED; constant integer esize = 8 << UInt(size); integer dn = UInt(Zdn:'0'); integer m = UInt('0':Zm); constant integer nreg = 2;

Four registers
(FEAT_SME2)

if !HaveSME2() then UNDEFINED; constant integer esize = 8 << UInt(size); integer dn = UInt(Zdn:'00'); integer m = UInt('0':Zm); constant integer nreg = 4;