vctz.v

Vector count trailing zeros

This instruction is defined by:

Encoding

svg

Synopsis

Counts the number of trailing zero bits in each element of vector register vs2, storing results in vector register vd according to mask vm. For zero elements, returns the element width.

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> vd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original