• 1. List
  • 1.1. A
  • 1.2. B
  • 1.3. C

x86 Instructions

x86 is home to a few hundred instructions with over 3,000 different encodings. An up-to-date list is available in PDF form on Intel's website (see volume 2).

List

A

• AAA - ASCII Adjust AL After Addition
• AAD - ASCII Adjust AX Before Division
• AAM - ASCII Adjust AX After Multiplication
• AAS - ASCII Adjust AL After Subtraction
• ADC - Add With Carry
• ADCX - Unsigned Integer Addition of Two Operands with Carry Flag
• ADD - Add
• ADDPD, ADDPS, ADDSD, ADDSS - Add (Vector)
• ADDSUBPD, ADDSUBPS - Add/Subtract (Vector)
• ADOX - Unsigned Integer Addition of Two Operands with Overflow Flag
• AESDEC, AESDECLAST - Perform AES Decryption
• AESENC, AESENCLAST - Perform AES Encryption
• AESIMC - Perform the AES "Inverse Mix Columns" Transformation
• AESKEYGENASSIST - AES Round Key Generation Assist
• AND - Logical AND
• ANDPD, ANDPS - Logical AND (Vector)
• ANDN - Logical AND NOT
• ANDNPD, ANDNPS - Logical AND NOT (Vector)
• ARPL - Adjust RPL Field of Segment Selector

B

• BEXTR - Bit Extract Field
• BLENDPD, BLENDPS - Blend (Vector)
• BLENDVPD, BLENDVPS - Variable Blend (Vector)
• BLSI - Extract Lowest Set Bit
• BLSMSK - Get Mask Up to Lowest Set Bit
• BLSR - Clear Lowest Set Bit
• BNDCL - Check Lower Bound
• BNDCN, BNDCU - Check Upper Bound
• BNDLDX - Load Extended Bounds Using Address Translation
• BNDMK - Make Bounds
• BNDMOV - Move Bounds
• BNDSTX - Store Extended Bounds Using Address Translation
• BOUND - Check Array Index Against Bounds
• BSF - Bit Scan Forward
• BSR - Bit Scan Reverse
• BSWAP - Byte Swap
• BT - Bit Test
• BTC - Bit Test and Complement
• BTR - Bit Test and Reset
• BTS - Bit Test and Set
• BZHI - Zero High Bits From Index

C

• CALL - Call Procedure
• CBW - Convert Byte to Word
• CWDE - Convert Word to Doubleword
• CDQE - Convert Doubleword to Quadword
• CLAC - Clear AC in EFLAGS
• CLC - Clear Carry Flag
• CLD - Clear Direction Flag
• CLDEMOTE - Cache Line Demote