16.80 HINT

Hint instruction.

Syntax

HINT #imm ; Hints 6 and 7

HINT #imm ; Hints 8 to 15, and 24 to 127

HINT #imm ; Hints 17 to 23

Where:

imm
Is a 7-bit unsigned immediate, in the range 0 to 127, but excludes the following:
0
NOP.
1
YIELD.
2
WFE.
3
WFI.
4
SEV.
5
SEVL.

Usage

Hint instruction is for the instruction set space that is reserved for architectural hint instructions.

The encoding variants described here are unallocated in this revision of the architecture, and behave as a NOP. These encodings might be allocated to other hint functionality in future revisions of the architecture.

Non-ConfidentialPDF file icon PDF versionDUI0801J
Copyright © 2014–2017, 2019 Arm Limited or its affiliates. All rights reserved.