CBO.INVAL

Cache Block Operation: Invalidate

CBO.INVAL (rs1)

Performs an invalidate operation on the cache block.

Encoding

Binary Layout

000000000000

31:20

rs1

19:15

010000000001111

14:0

 

Format I-Type

Opcode 0x0000200F

Extension Zicbom

Operands

• rs1
  Address

Example

CBO.INVAL (x10)

// Discard cache line (data lost if dirty).

Related

More in Zicbom

Reference

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

Description

CBO.INVAL invalidates the cache block containing the effective address, removing it from the cache without writing back dirty data. This is a hint; the implementation may write back dirty data.

Operation

CacheInvalidate(R[rs1]);