aes64dsm

AES decrypt middle round

This instruction is defined by:

Encoding

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Synopsis

Uses the two 64-bit source registers to represent the entire AES state, and produces half of the next round output, applying the Inverse ShiftRows, SubBytes and MixColumns steps.

Access

M HS U VS VU

Always

Always

Always

Always

Always

Decode Variables

Bits<5> xs2 = $encoding[24:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original