vclmulh.vx

Vector carry-less multiply high by scalar

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 scalar register xs1, storing the high bits of the result in vector register vd according to mask vm.

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> xs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original