VAESDM.VV

Vector AES Decryption Middle Round

VAESDM.VV vd, vs2, vs1

Performs a middle AES decryption round.

Details

Performs a vectorised AES cryptographic round operation. Each element group undergoes one step of the cipher algorithm in parallel. See the Zvk vector crypto extension for full semantic details.

Pseudocode Operation

vd = AES_Decrypt_Middle(vd, vs2);

Example

VAESDM.VV v1, v4, v2

Encoding

Binary Layout
1010001
31:25
vs2
24:20
00000010
19:12
vd
11:7
1110111
6:0
 
Format OPIVV
Opcode 0xA2002077
Extension Zvkned

Operands

  • vd
    State
  • vs2
    Round Key
  • vs1
    Undef