Key Terms
| Term | Description |
| XLEN | 32, 64, or 128; based on the current register length (RV32I, RV64I, RV128I) |
| rs1, rs2 | Source Registers |
| rd | Destination Register |
| x[0-31] | User Registers; XLEN-1 wide |
| zero register | A register hard-wired to the value of 0 |
| Term | Description |
| XLEN | 32, 64, or 128; based on the current register length (RV32I, RV64I, RV128I) |
| rs1, rs2 | Source Registers |
| rd | Destination Register |
| x[0-31] | User Registers; XLEN-1 wide |
| zero register | A register hard-wired to the value of 0 |