AES single round decryption
AES single round decryption.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | Rn | Rd | ||||||||
| size | D | ||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_AES) then EndOfDecode(Decode_UNDEF); constant integer d = UInt(Rd); constant integer n = UInt(Rn);
| <Vd> |
Is the name of the SIMD&FP source and destination register, encoded in the "Rd" field. |
| <Vn> |
Is the name of the second SIMD&FP source register, encoded in the "Rn" field. |
AArch64.CheckFPAdvSIMDEnabled(); constant bits(128) operand1 = V[d, 128]; constant bits(128) operand2 = V[n, 128]; bits(128) result = operand1 EOR operand2; result = AESInvShiftRows(result); V[d, 128] = AESInvSubBytes(result);