AESIMC

AES inverse mix columns.

313029282726252423222120191817161514131211109876543210
0100111000101000011110RnRd
D

Advanced SIMD

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

integer d = UInt(Rd); integer n = UInt(Rn); if !HaveAESExt() then UNDEFINED; boolean decrypt = (D == '1');

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(); bits(128) operand = V[n]; bits(128) result; if decrypt then result = AESInvMixColumns(operand); else result = AESMixColumns(operand); V[d] = result;

Operational information

If PSTATE.DIT is 1:


Internal version only: isa v30.41, AdvSIMD v27.08, pseudocode r8p5_00bet2_rc5, sve v8.5-00bet10_rc5 ; Build timestamp: 2019-03-28T06:34

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