BRB

Branch Record Buffer. For more information, see op0==0b01, cache maintenance, TLB maintenance, and address translation instructions.

This is an alias of SYS. This means:

System
(FEAT_BRBE)

313029282726252423222120191817161514131211109876543210
110101010000100101110010op2Rt
Lop1CRnCRm

BRB <brb_op>

is equivalent to

SYS #1, C7, C2, #<op2>{, <Xt>}

and is the preferred disassembly when SysOp('001', '0111', '0010', op2) == Sys_BRB .

Assembler Symbols

<brb_op>

Is a BRB operation name, as listed for the BRB system instruction group, encoded in op2:

op2 <brb_op> Architectural Feature
100 IALL FEAT_BRBE
101 INJ FEAT_BRBE

Operation

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


Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45

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