VROL.VX

Vector Rotate Left Scalar

VROL.VX vd, vs2, rs1, vm

Rotates bits in elements of vs2 left by scalar rs1.

Encoding

Binary Layout

010101

31:26

vm

25

vs2

24:20

rs1

19:15

100

14:12

vd

11:7

1010111

6:0

 

Format OPIVX

Opcode 0x54004057

Extension Zvbb

Operands

• vd
  Destination vector register
• vs2
  Source vector register 2
• rs1
  Source register 1 (integer)

Example

VROL.VX v1, v4, a0, v0.t

Related

More in Zvbb

Reference

View in RISC-V Unprivileged ISA Specification ↗ RISC-V ISA Manual

Description

Rotates each vector element left by the corresponding shift amount.

Operation

foreach(i < vl): vd[i] = rotate_left(vs2[i], rs1);