| # RISC-V Base Cache Management Operation ISA Extensions | |
| # Zicbom (Cache-Block Management Instructions) | |
| # Version 1.0 | |
| cbo.clean | i | base | 000000000001.....010000000001111 | |
| cbo.flush | i | base | 000000000010.....010000000001111 | |
| cbo.inval | i | base | 000000000000.....010000000001111 |