Scoped release boundary
This instruction signals to the memory system that a corresponding instruction with Release semantics or DMB instruction will subsequently occur in program order, and if that corresponding instruction defines a Barrier scope with the SLBND instruction, then these instructions do not create a Barrier-ordered-before relationship between any Effect in program order before the SLBND instruction and any of the following:
| 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 |
| 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
| CRm | op2 | ||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_RLCS) then EndOfDecode(Decode_NOP); end;
Version 2026.09 — Copyright © 2010-2026 Arm Limited or its affiliates.
This site is provided as a community resource and is NOT affiliated with nor endorsed by Arm Limited.