17.14 LDARH

Load-Acquire Register Halfword.

Syntax

LDARH Wt, [Xn|SP{,#0}]

Where:

Wt
Is the 32-bit name of the general-purpose register to be transferred.
Xn|SP
Is the 64-bit name of the general-purpose base register or stack pointer.

Usage

Load-Acquire Register Halfword derives an address from a base register value, loads a halfword from memory, zero-extends it, and writes it to a register. The instruction also has memory ordering semantics as described in Load-Acquire, Store-Release. For information about memory accesses, see Load/Store addressing modes in the ARM Architecture Reference Manual ARMv8, for ARMv8-A architecture profile.

Non-ConfidentialPDF file icon PDF versionARM 100069_0608_00_en
Copyright © 2014–2017 ARM Limited or its affiliates. All rights reserved.