Intel Pentium CPU Instruction Set Reference

CPU Instruction Index

A

• AAA instruction - ASCII Adjust for Addition
• AAD instruction - ASCII Adjust AX Before Division
• AAM instruction - ASCII Adjust AX After Multiply
• AAS instruction - ASCII Adjust AL After Subtraction
• ADC instruction - Add with Carry
• ADD instruction - Add
• AND instruction - Logical AND
• ARPL instruction - Adjust RPL Field of Segment Selector

B

• BOUND instruction - Check Array Index Against Bounds
• BSF instruction - Bit Scan Forward
• BSR instruction - Bit Scan Reverse
• BSWAP instruction - Byte Swap
• BT instruction - Bit Test
• BTC instruction - Bit Test and Compliment
• BTR instruction - Bit Test and Reset
• BTS instruction - Bit Test and Set

C

• CALL instruction - Call Procedure
• CBW instruction - Convert Byte to Word
• CDQ instruction - Convert Double to Quad
• CLC instruction - Clear Carry Flag
• CLD instruction - Clear Direction Flag
• CLI instruction - Clear Interrupt Flag
• CLTS instruction - Clear Task-Switched Flag in CR0
• CMC instruction - Complement Carry Flag
• CMP instruction - Compare Two Operands
• CMPS instruction - Compare String Operands
• CMPSB instruction - Compare String Operands
• CMPSD instruction - Compare String Operands
• CMPSW instruction - Compare String Operands
• CMPXCHG instruction - Compare and Exchange
• CMPXCHG8B instruction - Compare and Exchange 8 Bytes
• CPUID instruction - CPU Identification
• CWDE instruction - Convert Word to Doubleword
• CWD instruction - Convert Word to Doubleword

D

• DAA instruction - Decimal Adjust AL after Addition
• DAS instruction - Decimal Adjust AL after Subtraction
• DEC instruction - Decrement by 1
• DIV instruction - Unsigned Divide

E

• ENTER instruction - Make Stack Frame for Procedure Parameters

F

• FWAIT instruction - Wait

G

H

• HLT instruction - Halt

I

• IDIV instruction - Signed Divide
• IMUL instruction - Signed Multiply
• IN instruction - Input from Port
• INC instruction - Increment by 1
• INS instruction - Input from Port to String
• INSB instruction - Input from Port to String
• INSD instruction - Input from Port to String
• INSW instruction - Input from Port to String
• INT instruction - Call to Interrupt Procedure
• INT3 instruction - Call to Interrupt Procedure
• INTO instruction - Call to Interrupt Procedure
• INVD instruction - Invalidate Internal Caches
• INVLPG instruction - Invalidate TLB Entry
• IRET instruction - Interrupt Return
• IRETD instruction - Interrupt Return

J

• JA instruction - Jump if Condition Is Met
• JAE instruction - Jump if Condition Is Met
• JB instruction - Jump if Condition Is Met
• JBE instruction - Jump if Condition Is Met
• JC instruction - Jump if Condition Is Met
• JCXZ instruction - Jump if Condition Is Met
• JE instruction - Jump if Condition Is Met
• JECXZ instruction - Jump if Condition Is Met
• JG instruction - Jump if Condition Is Met
• JGE instruction - Jump if Condition Is Met
• JL instruction - Jump if Condition Is Met
• JLE instruction - Jump if Condition Is Met
• JMP instruction - Jump
• JNA instruction - Jump if Condition Is Met
• JNAE instruction - Jump if Condition Is Met
• JNB instruction - Jump if Condition Is Met
• JNBE instruction - Jump if Condition Is Met
• JNC instruction - Jump if Condition Is Met
• JNE instruction - Jump if Condition Is Met
• JNG instruction - Jump if Condition Is Met
• JNGE instruction - Jump if Condition Is Met
• JNL instruction - Jump if Condition Is Met
• JNLE instruction - Jump if Condition Is Met
• JNO instruction - Jump if Condition Is Met
• JNP instruction - Jump if Condition Is Met
• JNS instruction - Jump if Condition Is Met
• JNZ instruction - Jump if Condition Is Met
• JO instruction - Jump if Condition Is Met
• JP instruction - Jump if Condition Is Met
• JPE instruction - Jump if Condition Is Met
• JPO instruction - Jump if Condition Is Met
• JS instruction - Jump if Condition Is Met
• JZ instruction - Jump if Condition Is Met

K

L

• LAHF instruction - Load Status Flags into AH Register
• LAR instruction - Load Access Rights Byte
• LDS instruction - Load Far Pointer
• LEA instruction - Load Effective Address
• LEAVE instruction - High Level Procedure Exit
• LES instruction - Load Far Pointer
• LFS instruction - Load Far Pointer
• LGDT instruction - Load Global Descriptor Table Register
• LGS instruction - Load Far Pointer
• LIDT instruction - Load Interrupt Descriptor Table Register
• LLDT instruction - Load Local Descriptor Table Register
• LMSW instruction - Load Machine Status Word
• LOCK instruction - Assert LOCK# Signal Prefix
• LODS instruction - Load String
• LODSB instruction - Load String
• LODSD instruction - Load String
• LODSW instruction - Load String
• LOOP instruction - Loop According to ECX Counter
• LOOPE instruction - Loop According to ECX Counter
• LOOPNE instruction - Loop According to ECX Counter
• LOOPNZ instruction - Loop According to ECX Counter
• LOOPZ instruction - Loop According to ECX Counter
• LSL instruction - Load Segment Limit
• LSS instruction - Load Far Pointer
• LTR instruction - Load Task Register

M

• MOV instruction - Move
• MOV instruction - Move to/from Control Registers
• MOV instruction - Move to/from Debug Registers
• MOVS instruction - Move Data from String to String
• MOVSB instruction - Move Data from String to String
• MOVSD instruction - Move Data from String to String
• MOVSW instruction - Move Data from String to String
• MOVSX instruction - Move with Sign-Extension
• MOVZX instruction - Move with Zero-Extend
• MUL instruction - Unsigned Multiply

N

• NEG instruction - Two's Complement Negation
• NOP instruction - No Operation
• NOT instruction - One's Complement Negation

O

• OR instruction - Logical Inclusive OR
• OUT instruction - Output to Port
• OUTS instruction - Output String to Port
• OUTSB instruction - Output String to Port
• OUTSD instruction - Output String to Port
• OUTSW instruction - Output String to Port

P

• POP instruction - Pop a Value from the Stack
• POPA instruction - Pop All General-Purpose Registers
• POPAD instruction - Pop All General-Purpose Registers
• POPF instruction - Pop Stack into EFLAGS Register
• POPFD instruction - Pop Stack into EFLAGS Register
• PUSH instruction - Push Word or Doubleword Onto the Stack
• PUSHA instruction - Push All General-Purpose Registers
• PUSHAD instruction - Push All General-Purpose Registers
• PUSHF instruction - Push EFLAGS Register onto the Stack
• PUSHFD instruction - Push EFLAGS Register onto the Stack

Q

R

• RCL instruction - Rotate Bits Left with CF
• RCR instruction - Rotate Bits Right with CF
• RDMSR instruction - Read from Model Specific Register
• RDTSC instruction - Read Time-Stamp Counter
• REP instruction - Repeat String Operation Prefix
• REPE instruction - Repeat String Operation Prefix
• REPNE instruction - Repeat String Operation Prefix
• REPNZ instruction - Repeat String Operation Prefix
• REPZ instruction - Repeat String Operation Prefix
• RET instruction - Return from Procedure
• ROL instruction - Rotate Bits Left
• ROR instruction - Rotate Bits Right
• RSM instruction - Resume from System Management Mode

S

• SAHF instruction - Store AH into Flags
• SAL instruction - Shift Arithmetic Left
• SAR instruction - Shift Arithmetic Right
• SBB instruction - Integer Subtraction with Borrow
• SCAS instruction - Scan String
• SCASB instruction - Scan String
• SCASD instruction - Scan String
• SCASW instruction - Scan String
• SETA instruction - Set Byte on Condition
• SETAE instruction - Set Byte on Condition
• SETB instruction - Set Byte on Condition
• SETBE instruction - Set Byte on Condition
• SETC instruction - Set Byte on Condition
• SETE instruction - Set Byte on Condition
• SETG instruction - Set Byte on Condition
• SETGE instruction - Set Byte on Condition
• SETL instruction - Set Byte on Condition
• SETLE instruction - Set Byte on Condition
• SETNA instruction - Set Byte on Condition
• SETNAE instruction - Set Byte on Condition
• SETNB instruction - Set Byte on Condition
• SETNBE instruction - Set Byte on Condition
• SETNC instruction - Set Byte on Condition
• SETNE instruction - Set Byte on Condition
• SETNG instruction - Set Byte on Condition
• SETNGE instruction - Set Byte on Condition
• SETNL instruction - Set Byte on Condition
• SETNLE instruction - Set Byte on Condition
• SETNO instruction - Set Byte on Condition
• SETNP instruction - Set Byte on Condition
• SETNS instruction - Set Byte on Condition
• SETNZ instruction - Set Byte on Condition
• SETO instruction - Set Byte on Condition
• SETP instruction - Set Byte on Condition
• SETPE instruction - Set Byte on Condition
• SETPO instruction - Set Byte on Condition
• SETS instruction - Set Byte on Condition
• SETZ instruction - Set Byte on Condition
• SGDT instruction - Store Global Descriptor Table Register
• SHL instruction - Shift Left
• SHLD instruction - Double Precision Shift Left
• SHR instruction - Shift Right
• SHRD instruction - Double Precision Shift Right
• SIDT instruction - Store Interrupt Descriptor Table Register
• SLDT instruction - Store Local Descriptor Table Register
• SMSW instruction - Store Machine Status Word
• STC instruction - Set Carry Flag
• STD instruction - Set Direction Flag
• STI instruction - Set Interrupt Flag
• STOS instruction - Store String
• STOSB instruction - Store String
• STOSD instruction - Store String
• STOSW instruction - Store String
• STR instruction - Store Task Register
• SUB instruction - Subtract

T

• TEST instruction - Logical Compare

U

V

• VERR instruction - Verify a Segment for Reading
• VERW instruction - Verify a Segment for Writing

W

• WAIT instruction - Wait
• WBINVD instruction - Write Back and Invalidate Cache
• WRMSR instruction - Write to Model Specific Register

X

• XADD instruction - Exchange and Add
• XCHG instruction - Exchange Register/Memory with Register
• XLAT instruction - Table Look-up Translation
• XLATB instruction - Table Look-up Translation
• XOR instruction - Logical Exclusive OR

Y

Z

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