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AESIMC

AES inverse mix columns

AES inverse mix columns.

Advanced SIMD class

(FEAT_AES)

313029282726252423222120191817161514131211109876543210
0100111000101000011110RnRd
sizeD

Encoding

AESIMC <Vd>.16B, <Vn>.16B

Decode

if !IsFeatureImplemented(FEAT_AES) then EndOfDecode(Decode_UNDEF); constant integer d = UInt(Rd); constant integer n = UInt(Rn);

Assembler Symbols

<Vd>

Is the name of the SIMD&FP destination register, encoded in the "Rd" field.

<Vn>

Is the name of the SIMD&FP source register, encoded in the "Rn" field.

Operation

AArch64.CheckFPAdvSIMDEnabled(); constant bits(128) operand = V[n, 128]; V[d, 128] = AESInvMixColumns(operand);

Operational information

This instruction is a data-independent-time instruction as described in About PSTATE.DIT.


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