AT

Address Translate. For more information, see op0==0b01, cache maintenance, TLB maintenance, and address translation instructions.

This is an alias of SYS. This means:

313029282726252423222120191817161514131211109876543210
1101010100001op10111100xop2Rt
LCRnCRm

AT <at_op>, <Xt>

is equivalent to

SYS #<op1>, C7, <Cm>, #<op2>, <Xt>

and is the preferred disassembly when SysOp(op1, '0111', CRm, op2) == Sys_AT .

Assembler Symbols

<at_op>

Is an AT operation name, as listed for the AT system instruction group, encoded in op1:CRm:op2:

op1 CRm op2 <at_op> Architectural Feature
000 1000 000 S1E1R -
000 1000 001 S1E1W -
000 1000 010 S1E0R -
000 1000 011 S1E0W -
000 1001 000 S1E1RP FEAT_PAN2
000 1001 001 S1E1WP FEAT_PAN2
000 1001 010 S1E1A FEAT_ATS1A
100 1000 000 S1E2R -
100 1000 001 S1E2W -
100 1000 100 S12E1R -
100 1000 101 S12E1W -
100 1000 110 S12E0R -
100 1000 111 S12E0W -
100 1001 010 S1E2A FEAT_ATS1A
110 1000 000 S1E3R -
110 1000 001 S1E3W -
110 1001 010 S1E3A FEAT_ATS1A
<Xt>

Is the 64-bit name of the general-purpose source register, encoded in the "Rt" field.

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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