ORR (vectors, unpredicated)

Bitwise inclusive OR (unpredicated)

This instruction performs a bitwise inclusive OR between the elements of the first source vector and the corresponding elements of the second source vector, and places the first in the corresponding elements of the destination vector. This instruction is unpredicated.

This instruction is used by the alias MOV (vector, unpredicated).

SVE
(FEAT_SVE || FEAT_SME)

313029282726252423222120191817161514131211109876543210
00000100011Zm001100ZnZd
opc

Encoding

ORR <Zd>.D, <Zn>.D, <Zm>.D

Decode for this encoding

if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let n : integer = UInt(Zn); let m : integer = UInt(Zm); let d : integer = UInt(Zd);

Assembler Symbols

<Zd>

Is the name of the destination scalable vector register, encoded in the "Zd" field.

<Zn>

Is the name of the first source scalable vector register, encoded in the "Zn" field.

<Zm>

Is the name of the second source scalable vector register, encoded in the "Zm" field.

Alias Conditions

AliasIs preferred when
MOV (vector, unpredicated)Zn == Zm

Operation

CheckSVEEnabled(); let VL : integer{} = CurrentVL(); let operand1 : bits(VL) = Z{}(n); let operand2 : bits(VL) = Z{}(m); Z{VL}(d) = operand1 OR operand2;

Operational information

This instruction is a data-independent-time instruction as described in About PSTATE.DIT.


2026-03_rel 2026-03-26 20:48:11

Copyright © 2010-2026 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.