Revision as of 01:41, 2 December 2013
Below is a list of the MIPS32 Instruction Set
Instructions list
Arithmetic instructions
| Mnemonic |
Description
|
| ADD |
Add Word
|
| ADDI |
Add Immediate Word
|
| ADDIU |
Add Immediate Unsigned Word
|
| ADDU |
Add Unsigned Word
|
| CLO |
Count Leading Ones in Word
|
| CLZ |
Count Leading Zeros in Word
|
| DIV |
Divide Word
|
| DIVU |
Divide Unsigned Word
|
| MADD |
Multiply and Add Word to Hi, Lo
|
| MADDU |
Multiply and Add Unsigned Word to Hi, Lo
|
| MSUB |
Multiply and Subtract Word to Hi, Lo
|
| MSUBU |
Multiply and Subtract Unsigned Word to Hi, Lo
|
| MUL |
Multiply Word to GPR
|
| MULT |
Multiply Word
|
| MULTU |
Multiply Unsigned Word
|
| SEB |
Sign-Extend Byte
|
| SEH |
Sign-Extend Halftword
|
| SLT |
Set on Less Than
|
| SLTI |
Set on Less Than Immediate
|
| SLTIU |
Set on Less Than Immediate Unsigned
|
| SLTU |
Set on Less Than Unsigned
|
| SUB |
Subtract Word
|
| SUBU |
Subtract Unsigned Word
|
Branch instructions
Note that all the likely branches have been obsoleted; they will be removed in future revisions of the MIPS32 architecture. Software is strongly discouraged from using these instructions.
| Mnemonic |
Description
|
| B |
Unconditional Branch
|
| BAL |
Branch and Link
|
| BEQ |
Branch on Equal
|
| BGEZ |
Branch on Greater Than or Equal to Zero
|
| BGEZAL |
Branch on Greater Than or Equal to Zero and Link
|
| BGTZ |
Branch on Greater Than Zero
|
| BLEZ |
Branch on Less Than or Equal to Zero
|
| BLTZ |
Branch on Less Than Zero
|
| BLTZAL |
Branch on Less Than Zero and Link
|
| BNE |
Branch on Not Equal
|
BEQL |
Branch on Equal Likely
|
BGEZALL |
Branch on Greater Than or Equal to Zero and Link Likely
|
BGEZL |
Branch on Greater Than or Equal to Zero Likely
|
BGTZL |
Branch on Greater Than Zero Likely
|
BLEZL |
Branch on Less Than or Equal to Zero Likely
|
BLTZALL |
Branch on Less Than Zero and Link Likely
|
BLTZL |
Branch on Less Than Zero Likely
|
BNEL |
Branch on Not Equal Likely
|
Jump instructions
| Mnemonic |
Description
|
| J |
Jump
|
| JAL |
Jump and Link
|
| JALR |
Jump and Link Register
|
| JALR.HB |
Jump and Link Register with Hazard Barrier
|
| JALX |
Jump and Link Exchange
|
| JR |
Jump Register
|
| JR.HB |
Jump Register with Hazard Barrier
|
Control instructions
| Mnemonic |
Description
|
| EHB |
Execution Hazard Barrier
|
| NOP |
No Operation
|
| PAUSE |
Wait for LLBit to Clear
|
| SSNOP |
Superscalar No Operation
|
Memory control instructions
| Mnemonic |
Description
|
| LB |
Load Byte
|
| LBE |
Load Byte EVA
|
| LBU |
Load Byte Unsigned
|
| LBUE |
Load Byte Unsigned EVA
|
| LH |
Load Halfword
|
| LHE |
Load Halfword EVA
|
| LHU |
Load Halfword Unsigned
|
| LHUE |
Load Halfword Unsigned EVA
|
| LL |
Load Linked Word
|
| LLE |
Load Linked Word-EVA
|
| LW |
Load Word
|
| LWE |
Load Word EVA
|
| LWL |
Load Word Left
|
| LWLE |
Load Word Left EVA
|
| LWR |
Load Word Right
|
| LWRE |
Load Word Right EVA
|
| PREF |
Prefetch
|
| PREFE |
Prefetch-EVA
|
| SB |
Store Byte
|
| SBE |
Store Byte EVA
|
| SC |
Store Conditional Word
|
| SCE |
Store Conditional Word EVA
|
| SH |
Store Halfword
|
| SHE |
Store Halfword EVA
|
| SW |
Store Word
|
| SWE |
Store Word EVA
|
| SWL |
Store Word Left
|
| SWLE |
Store Word Left EVA
|
| SWR |
Store Word Right
|
| SWRE |
Store Word Right EVA
|
| SYNC |
Synchronize Shared Memory
|
| SYNCI |
Synchronize Caches to Make Instruction Writes Effective
|
Logical instruction
| Mnemonic |
Description
|
| AND |
And
|
| ANDI |
And Immediate
|
| LUI |
Load Upper Immediate
|
| NOR |
Not Or
|
| OR |
Or
|
| ORI |
Or Immediate
|
| XOR |
Exclusive Or
|
| XORI |
Exclusive Or Immediate
|
| Mnemonic |
Description
|
| EXT |
Extract Bit Field
|
| INS |
Insert Bit Field
|
| WSBH |
Word Swap Bytes Within Halfwords
|
Move instructions
| Mnemonic |
Description
|
| MFHI |
Move From HI Register
|
| MFLO |
Move From LO Register
|
| MOVF |
Move Conditional on Floating Point False
|
| MOVN |
Move Conditional on Not Zero
|
| MOVT |
Move Conditional on Floating Point True
|
| MOVZ |
Move Conditional on Zero
|
| MTHI |
Move To HI Register
|
| MTLO |
Move To LO Register
|
| RDHWR |
Read Hardware Register
|
Shift instructions
| Mnemonic |
Description
|
| ROTR |
Rotate Word Right
|
| ROTRV |
Rotate Word Right Variable
|
| SLL |
Shift Word Left Logical
|
| SLLV |
Shift Word Left Logical Variable
|
| SRA |
Shift Word Right Arithmetic
|
| SRAV |
Shift Word Right Arithmetic Variable
|
| SRL |
Shift Word Right Logical
|
| SRLV |
Shift Word Right Logical Variable
|
Trap instructions
| Mnemonic |
Description
|
| BREAK |
Breakpoint
|
| SYSCALL |
System Call
|
| TEQ |
Trap if Equal
|
| TEQI |
Trap if Equal Immediate
|
| TGE |
Trap if Greater or Equal
|
| TGEI |
Trap if Greater of Equal Immediate
|
| TGEIU |
Trap if Greater or Equal Immediate Unsigned
|
| TGEU |
Trap if Greater or Equal Unsigned
|
| TLT |
Trap if Less Than
|
| TLTI |
Trap if Less Than Immediate
|
| TLTIU |
Trap if Less Than Immediate Unsigned
|
| TLTU |
Trap if Less Than Unsigned
|
| TNE |
Trap if Not Equal
|
| TNEI |
Trap if Not Equal Immediate
|
FPU instructions
Arithmetic instructions
Branch instructions
| Mnemonic |
Description
|
| BC1F |
Branch on FP False
|
| BC1T |
Branch on FP True
|
BC1FL |
Branch on FP False Likely
|
BC1TL |
Branch on FP True Likely
|
Compare instructions
| Mnemonic |
Description
|
| C.cond.fmt |
Floating Point Compare
|
Convert instructions
| Mnemonic |
Description
|
| ALNV.PS |
Floating Point Align Variable
|
| CEIL.L.fmt |
Floating Point Ceiling Convert to Long Fixed Point
|
| CEIL.W.fmt |
Floating Point Ceiling Convert to Word Fixed Point
|
| CVT.D.fmt |
Floating Point Convert to Double Floating Point
|
| CVT.L.fmt |
Floating Point Convert to Long Fixed Point
|
| CVT.PS.S |
Floating Point Convert Pair to Paired Single
|
| CVT.S.PL |
Floating Point Convert Pair Lower to Single Floating Point
|
| CVT.S.PU |
Floating Point Convert Pair Upper to Single Floating Point
|
| CVT.S.fmt |
Floating Point Convert to Single Floating Point
|
| CVT.W.fmt |
Floating Point Convert to Word Fixed Point
|
| FLOOR.L.fmt |
Floating Point Floor Convert to Long Fixed Point
|
| FLOOR.W.fmt |
Floating Point Floor Convert to Word Fixed Point
|
| PLL.PS |
Pair Lower Lower
|
| PLU.PS |
Pair Lower Upper
|
| PUL.PS |
Pair Upper Lower
|
| PUU.PS |
Pair Upper Upper
|
| ROUND.L.fmt |
Floating Point Round to Long Fixed Point
|
| ROUND.W.fmt |
Floating Point Round to Word Fixed Point
|
| TRUNC.L.fmt |
Floating Point Truncate to Long Fixed Point
|
| TRUNC.W.fmt |
Floating Point Truncate to Word Fixed Point
|
Memory control instructions
| Mnemonic |
Description
|
| LDC1 |
Load Doubleword to Floating Point
|
| LDXC1 |
Load Doubleword Indexed to Floating Point
|
| LUXC1 |
Load Doubleword Indexed Unaligned to Floating Point
|
| LWC1 |
Load Word to Floating Point
|
| LWXC1 |
Load Word Indexed to Floating Point
|
| PREFX |
Prefetch Indexed
|
| SDC1 |
Store Doubleword from Floating Point
|
| SDXC1 |
Store Doubleword Indexed from Floating Point
|
| SUXC1 |
Store Doubleword Indexed Unaligned from Floating Point
|
| SWC1 |
Store Word from Floating Point
|
| SWXC1 |
Store Word Indexed from Floating Point
|
Move instructions
| Mnemonic |
Description
|
| CFC1 |
Move Control Word from Floating Point
|
| CTC1 |
Move Control Word to Floating Point
|
| MFC1 |
Move Word from Floating Point
|
| MFHC1 |
Move Word from High Half of Floating Point Register
|
| MOV.fmt |
Floating Point Move
|
| MOVF.fmt |
Floating Point Move Conditional on Floating Point False
|
| MOVN.fmt |
Floating Point Move Conditional on Not Zero
|
| MOVT.fmt |
Floating Point Move Conditional on Floating Point True
|
| MOVZ.fmt |
Floating Point Move Conditional on Zero
|
| MTC1 |
Move Word to Floating Point
|
| MTHC1 |
Move Word to High Half of Floating Point Register
|
Coprocessor instructions
Branch instructions
| Mnemonic |
Description
|
| BC2F |
Branch on COP2 False
|
| BC2T |
Branch on COP2 True
|
BC2FL |
Branch on COP2 False Likely
|
BC2TL |
Branch on COP2 True Likely
|
Execute instructions
| Mnemonic |
Description
|
| COP2 |
Coprocessor Operation to Coprocessor 2
|
Memory control instructions
| Mnemonic |
Description
|
| DC2 |
Load Doubleword to Coprocessor 2
|
| LWC2 |
Load Word to Coprocessor 2
|
| SDC2 |
Store Doubleword from Coprocessor 2
|
| SWC2 |
Store Word from Coprocessor 2
|
Move instructions
| Mnemonic |
Description
|
| CFC2 |
Move Control Word from Coprocessor 2
|
| CTC2 |
Move Control Word to Coprocessor 2
|
| MFC2 |
Move Word from Coprocessor 2
|
| MFHC2 |
Move Word from High Half of Coprocessor 2 Register
|
| MTC2 |
Move Word to Coprocessor 2
|
| MTHC2 |
Move Word to High Half of Coprocessor 2 Register
|
Privileged instructions
| Mnemonic |
Description
|
| CACHE |
Perform Cache Operation
|
| CACHEE |
Perform Cache Operation EVA
|
| DI |
Disable Interrupts
|
| EI |
Enable Interrupts
|
| ERET |
Exception Return
|
| MFC0 |
Move from Coprocessor 0
|
| MTC0 |
Move to Coprocessor 0
|
| RDPGPR |
Read GPR from Previous Shadow Set
|
| TLBP |
Probe TLB for Matching Entry
|
| TLBR |
Read Indexed TLB Entry
|
| TLBWI |
Write Indexed TLB Entry
|
| TLBWR |
Write Random TLB Entry
|
| WAIT |
Enter Standby Mode
|
| WRPGPR |
Write GPR to Previous Shadow Set
|
EJTAG instructions
| Mnemonic |
Description
|
| DERET |
Debug Exception Return
|
| SDBBP |
Software Debug Breakpoint
|
