RAX1

Bitwise rotate left by 1 and exclusive OR

Rotate each 64-bit element of the second source vector left by 1 and exclusive OR with the corresponding elements of the first source vector. The results are placed in the corresponding elements of the destination vector. This instruction is unpredicated.

ID_AA64ZFR0_EL1.SHA3 indicates whether this instruction is implemented.

SVE2
(FEAT_SVE_SHA3)

313029282726252423222120191817161514131211109876543210
01000101001Zm111101ZnZd
size<1>size<0>

RAX1 <Zd>.D, <Zn>.D, <Zm>.D

if !HaveSVE() || !HaveSVE2SHA3() then UNDEFINED; integer n = UInt(Zn); integer m = UInt(Zm); integer d = 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.

Operation

CheckNonStreamingSVEEnabled(); integer elements = VL DIV 64; bits(VL) operand1 = Z[n]; bits(VL) operand2 = Z[m]; bits(VL) result; for e = 0 to elements-1 bits(64) element1 = Elem[operand1, e, 64]; bits(64) element2 = Elem[operand2, e, 64]; Elem[result, e, 64] = element1 EOR ROL(element2, 1); Z[d] = result;

Operational information

If FEAT_SVE2 is enabled or FEAT_SME is enabled, then when PSTATE.DIT is 1:


Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

Copyright © 2010-2021 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.