| # RISC-V Bit-Manipulation extension. |
| # Zbb extension (Basic bit-manipulation) |
| # Version 1.0 |
| |
| andn | r | rs2 rs1 rd | 0100000..........111.....0110011 |
| orn | r | rs2 rs1 rd | 0100000..........110.....0110011 |
| xnor | r | rs2 rs1 rd | 0100000..........100.....0110011 |
| clz | i | rs1 rd | 011000000000.....001.....0010011 |
| ctz | i | rs1 rd | 011000000001.....001.....0010011 |
| cpop | i | rs1 rd | 011000000010.....001.....0010011 |
| max | r | rs2 rs1 rd | 0000101..........110.....0110011 |
| maxu | r | rs2 rs1 rd | 0000101..........111.....0110011 |
| min | r | rs2 rs1 rd | 0000101..........100.....0110011 |
| minu | r | rs2 rs1 rd | 0000101..........101.....0110011 |
| sext.b | i | rs1 rd | 011000000100.....001.....0010011 |
| sext.h | i | rs1 rd | 011000000101.....001.....0010011 |
| zext.h.rv32 | i | rs1 rd | 000010000000.....100.....0110011 |
| rol | r | rs2 rs1 rd | 0110000..........001.....0110011 |
| ror | r | rs2 rs1 rd | 0110000..........101.....0110011 |
| rori | r | shamt rs1 rd | 011000...........101.....0010011 |
| orc.b | i | rs1 rd | 001010000111.....101.....0010011 |
| rev8.rv32 | i | rs1 rd | 011010011000.....101.....0010011 |
