BRB Branch record buffer For more information, see op0==0b01, cache maintenance, TLB maintenance, and address translation instructions. SYS 1 1 0 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 1 0 0 1 0 BRB <brb_op> SYS #1, C7, C2, #<op2>{, <Xt>} SysOp('001', '0111', '0010', op2) == Sys_BRB <brb_op> Is a BRB operation name, as listed for the BRB system instruction group, op2 <brb_op> Architectural Feature 100 IALL 101 INJ 2026-03-12 12:23:09 2025-09_rel_asl1