vrol.vx

Vector rotate left by scalar

Rotates each element in vector register vs2 left by the amount specified in scalar register xs1, storing results in vector register vd according to mask vm. The rotation amount is taken modulo the element width.

This instruction must have data-independent timing when extension Zkt is enabled.

Assembly format

vrol.vx vd, vs2, xs1, vm

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

Encoding

svg

Defining extension

Access

M

Always

Containing profiles

  • Mandatory: RVA20S64, RVA20U64, RVA22S64, RVA22U64, RVA23S64, RVA23U64, RVB23S64, RVB23U64

  • Optional: None