vclmul.vv

Vector carry-less multiply

This instruction is defined by:

Encoding

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Synopsis

Performs a carry-less multiply operation on each element in vector register vs2 with the corresponding element in vector register vs1, storing results in vector register vd according to mask vm. This is useful for cryptographic operations.

Access

M HS U VS VU

Always

Always

Always

Always

Always

Decode Variables

Bits<1> vm = $encoding[25];
Bits<5> vs2 = $encoding[24:20];
Bits<5> vs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original