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Pulpit rock
PSSBB

Physical Speculative Store Bypass Barrier is a memory barrier which prevents speculative loads from bypassing earlier stores to the same physical address.

The semantics of the Physical Speculative Store Bypass Barrier are:

This is an alias of DSB. This means:

313029282726252423222120191817161514131211109876543210
11010101000000110011010010011111
CRmopc

PSSBB

is equivalent to

DSB #4

and is always the preferred disassembly.

Operation

The description of DSB gives the operational pseudocode for this instruction.


Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

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