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DSB
Data Synchronization Barrier.
Syntax
DSB
option|#imm
Where:
option-
Specifies the limitation on the barrier operation. Values are:
imm-
Is a 4-bit unsigned immediate, in the range 0 to 15.
Usage
Data Synchronization Barrier is a memory barrier that ensures the completion of memory accesses, see Data Synchronization Barrier in the ARMv8-A Architecture Reference Manual.