vslidedown.vx
Vector slide down with scalar
Slides elements in vector register vs2 down by 1 position, inserting scalar register xs1 at the top, and stores results in vector register vd, using vector mask 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];