IC Instruction cache operation 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 1 1 1 IC <ic_op>{, <Xt>} SYS #<op1>, C7, <Cm>, #<op2>{, <Xt>} SysOp(op1, '0111', CRm, op2) == Sys_IC <ic_op> Is an IC operation name, as listed for the IC system instruction pages, op1 CRm op2 <ic_op> 000 0001 000 IALLUIS 000 0101 000 IALLU 011 0101 001 IVAU <Xt> Is the 64-bit name of the optional general-purpose source register, defaulting to '11111', encoded in the "Rt" field.