aes64ks1i

AES Key Schedule Instruction 1

This instruction implements the rotation, SubBytes and Round Constant addition steps of the AES block cipher Key Schedule.

rnum must be in the range 0x0..0xA. The values 0xB..0xF are reserved.

This instruction must have data-independent timing when extension Zkt is enabled.

Assembly format

aes64ks1i rd, rs1, rnum

Decode Variables

Bits<4> rnum = $encoding[23:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];

Execution

  • IDL

Encoding

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Defining extension

anyOf: * Zknd, version >= Zknd@1.0.0 * Zkne, version >= Zkne@1.0.0

Access

M

Always

Containing profiles

  • Mandatory:

  • Optional: RVA22S64, RVA22U64, RVA23M64, RVA23S64, RVB23M64, RVB23S64, RVB23U64