The ChipList, by Adrian Offerman; The Processor Portal

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X86-64 64 Bit Instruction Set Architecture (ISA) Extension

X86-64 64 bit instructions added with the Opteron/Athlon/Turion 64 and Pentium 4 processors:

  • CDQE
    Convert Doubleword to Quadword
  • CMPSQ
    Compare String Operands
  • CMPXCHG16B
    Compare and Exchange Bytes
  • CQO
    Convert Doubleword to Double Quadword
  • IRETQ
    Interrupt Return
  • JRCXZ
    Jump if rCX Zero
  • LODSQ
    Load String
  • MOVSQ
    Move Data from String to String
  • MOVSXD
    Move with Sign-Extension
  • POPFQ
    Pop Stack into EFLAGS Register
  • PUSHFQ
    Push EFLAGS Register onto the Stack
  • RDTSCP (AMD only)
    Read Time-Stamp Counter and Processor ID
  • SCASQ
    Scan String
  • STOSQ
    Store String
  • SWAPGS
    Swap GS Base Register