VFRSQRT7.V

Vector Float Reciprocal Sqrt Estimate 7-bit

VFRSQRT7.V vd, vs2, vm

Computes an estimate of 1/sqrt(x). Critical for vector normalization.

Encoding

Binary Layout

010011

31:26

vm

25

vs2

24:20

00100001

19:12

vd

11:7

1010111

6:0

 

Format OPFVV

Opcode 0x4C021057

Extension V

Operands

• vd
  Destination vector register
• vs2
  Source

Example

VFRSQRT7.V v1, v4, v0.t

Related

More in V

Reference

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

Description

Vector Float Reciprocal Sqrt Estimate 7-bit: Computes an estimate of 1/sqrt(x). Critical for vector normalization. Operation: foreach(i < vl): vd[i] = approx_rsqrt(vs2[i]);.

Operation

foreach(i < vl): vd[i] = approx_rsqrt(vs2[i]);