VNCLIP.WV

Vector Narrowing Clip (Arithmetic Shift)

VNCLIP.WV vd, vs2, vs1, vm

Shifts elements right, rounds, and clips (saturates) the result to the destination width. Critical for Quantization.

Encoding

Binary Layout

101111

31:26

vm

25

vs2

24:20

vs1

19:15

000

14:12

vd

11:7

1010111

6:0

 

Format OPIVV

Opcode 0xBC000057

Extension V

Operands

• vd
  Dest (Narrow)
• vs2
  Src Vector (Wide)
• vs1
  Shift Vector

Example

VNCLIP.WV v1, v4, v2, v0.t

Related

More in V

Reference

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

Description

Performs a narrowing operation, halving the result element width relative to the source. Optionally saturates the result. Active elements are determined by vl; masking by vm.

Operation

foreach(i < vl): vd[i] = clip(round(vs2[i] >> vs1[i]));