| ADD | Add |
| ADDF | Add Floating Point |
| ADDI | Add Immediate |
| ADDU | Add Unsiged |
| ADDUI | Add Unsiged Immediate |
| AND | And |
| ANDI | And Immediate |
| BEQZ | Branch if RS = 0 |
| BFPF | Branch if FP = false |
| BFPT | Branch if FP = true |
| BNEZ | Branch if RS /= 0 |
| DIV | Divide |
| DIVF | Divide Floating Point |
| EQF | Set FP if = |
| GEF | Set FP if >= |
| GTF | Set FP if > |
| J | Jump |
| JR | Jump Register |
| LB | Load Byte Signed |
| LBU | Load Byte Unsigned |
| LEF | Set FP if =< (SPFP) |
| LF | Load Floating Point |
| LH | Load Half Word Signed |
| LHI | Load Half Word (High) Immediate |
| LHU | Load Half Word Unsigned |
| LTF | Set FP if < (SPFP) |
| LW | Load Word |
| MOVD | Move Floating point (DP) |
| MOVF | Move Floating point (SP) |
| MOVFP2I | Move SPFP to Integer |
| MOVI2FP | Move Integer to SPFP |
| MULT | Multiply |
| MULTF | Multiply Floating point |
| NEF | Set FP if /= (SPFP) |
| NOP | No operation |
| OR | Or |
| ORI | Or Immediate |
| SB | Store Byte |
| SEQ | Set RD = 1 if RS1 = RS2 |
| SEQI | Set RD = 1 if RS = Immediate |
| SF | Store Floating Point |
| SGE | Set RD = 1 if RS1 >= RS2 |
| SGEI | Set RD = 1 if RS >= Immediate |
| SGT | Set RD = 1 if RS1 > RS2 |
| SGTI | Set RD = 1 if RS > Immediate |
| SH | Store Half Word |
| SLE | Set RD = 1 if RS1 =< RS2 |
| SLEI | Set RD = 1 if RS =< Immediate |
| SLL | Shift Left Logical |
| SLLI | Shift Left Logical by Immediate |
| SLT | Set RD = 1 if RS1 < RS2 |
| SLTI | Set RD = 1 if RS < Immediate |
| SNE | Set RD = 1 if RS1 /= RS2 |
| SNEI | Set RD = 1 if RS /= Immediate |
| SRA | Shift Right Arithmetic |
| SRAI | Shift Right Arithmetic Immediate |
| SRL | Shift Right Logical |
| SRLI | Shift Right Logical Immediate |
| SUB | Subtract |
| SUBF | Subtract Floating point |
| SUBI | Subtract Immediate |
| SUBU | Subtract Unsigned |
| SUBUI | Subtract Unsigned Immediate |
| SW | Store Word |
| TRAP | Stops simulation |
| VOID | Does nothing |
| XOR | Exclusive OR |
| XORI | Exclusive OR Immediate |