Intel Pentium Instruction Set Reference

Instruction Index

A

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

B

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

C

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

D

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

E

• ENTER - Make Stack Frame for Procedure Parameters

F

• FWAIT - Wait

G

H

• HLT - Halt

I

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

J

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

K

L

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

M

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

N

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

O

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

P

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

Q

R

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

S

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

T

• TEST - Logical Compare

U

V

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

W

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

X

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

Y

Z