You copied the Doc URL to your clipboard.
CLREX
Clear Exclusive.
Syntax
CLREX{cond
where:
condis an optional condition code.
Note
condITinstruction, but this is deprecated in Arm®v8. This is an unconditional instruction in A32.
Usage
Use the CLREX instruction to clear the local record of the executing processor
that an address has had a request for an exclusive access.
CLREX returns a closely-coupled exclusive access monitor to its
open-access state. This removes the requirement for a dummy store to memory.
It is implementation defined whether CLREX also
clears the global record of the executing processor that an address
has had a request for an exclusive access.
Architectures
This 32-bit instruction is available in A32 and T32.
There is no 16-bit CLREX instruction in
T32.