Broadcast general-purpose register to vector elements (unpredicated)
Unconditionally broadcast the general-purpose scalar source register into each element of the destination vector. This instruction is unpredicated.
This instruction is used by the alias MOV (scalar, unpredicated).
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | size | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | Rn | Zd | |||||||||
if !HaveSVE() && !HaveSME() then UNDEFINED; constant integer esize = 8 << UInt(size); integer n = UInt(Rn); integer d = UInt(Zd);
| <Zd> |
Is the name of the destination scalable vector register, encoded in the "Zd" field. |
| <T> |
Is the size specifier,
encoded in
|
| <R> |
Is a width specifier,
encoded in
|
| <n|SP> |
Is the number [0-30] of the general-purpose source register or the name SP (31), encoded in the "Rn" field. |
CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer elements = VL DIV esize; constant integer PL = VL DIV 8; bits(64) operand; if n == 31 then operand = SP[]; else operand = X[n, 64]; bits(VL) result; for e = 0 to elements-1 Elem[result, e, esize] = operand<esize-1:0>; Z[d, VL] = result;
If FEAT_SVE2 is implemented or FEAT_SME is implemented, then if PSTATE.DIT is 1:
Internal version only: aarchmrs v2023-12_rel, pseudocode v2023-12_rel, sve v2023-12_rel ; Build timestamp: 2023-12-15T16:46
Copyright © 2010-2023 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.