vwmacc.vv

Vector widening multiply-add

This instruction is defined by:

Encoding

svg

Synopsis

Performs widening multiplication on elements from vector registers vs2 and vs1, adds the result to elements from vector register vd, and stores the final results in vector register vd, using vector 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> vs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original