| Instruction | Description |
|---|---|
| ADD | Add |
| SUB | Subtract |
| XOR | Bitwise XOR |
| OR | Bitwise OR |
| AND | Bitwise AND |
| SLL | Shift Left Logical |
| SRL | Shift Right Logical |
| SRA | Shift Right Arithmetic |
| SLT | Set Less Than |
| SLTU | Set Less Than Unsigned |
| ADDI | Add Immediate |
| XORI | XOR Immediate |
| ORI | OR Immediate |
| ANDI | AND Immediate |
| SLLI | Shift Left Logical Imm. |
| SRLI | Shift Right Logical Imm. |
| SRAI | Shift Right Arithmetic Imm. |
| SLTI | Set Less Than Immediate |
| SLTIU | Set Less Than Unsigned Imm. |
| LB | Load Byte |
| LH | Load Halfword |
| LW | Load Word |
| LBU | Load Byte Unsigned |
| LHU | Load Halfword Unsigned |
| SB | Store Byte |
| SH | Store Halfword |
| SW | Store Word |
| BEQ | Branch if Equal |
| BNE | Branch if Not Equal |
| BLT | Branch if Less Than |
| BGE | Branch if Greater or Equal |
| BLTU | Branch if Less Than Unsigned |
| BGEU | Branch if Greater or Equal Unsigned |
| JAL | Jump and Link |
| JALR | Jump and Link Register |
| LUI | Load Upper Immediate |
| AUIPC | Add Upper Immediate to PC |
| ECALL | Environment Call |
| EBREAK | Environment Break |
| Instruction | Description |
|---|---|
| MUL | Multiply |
| MULH | Multiply High |
| MULHSU | Multiply High Signed-Unsigned |
| MULHU | Multiply High Unsigned |
| DIV | Divide |
| DIVU | Divide Unsigned |
| REM | Remainder |
| REMU | Remainder Unsigned |
See https://www.cs.sfu.ca/~ashriram/Courses/CS295/assets/notebooks/RISCV/RISCV_CARD.pdf, https://five-embeddev.com/riscv-user-isa-manual/Priv-v1.12/preface.html, https://michaeljclark.github.io/isa.html, https://riscv.org/technical/specifications/